开发问题及解决 java.lang.ClassCastException:android.widget.LinearLayout$LayoutParams

最新推荐文章于 2022-03-15 00:46:52 发布
转载 最新推荐文章于 2022-03-15 00:46:52 发布 · 1.2k 阅读 · 0
文章标签：

#android开发 #layout #parameters

本文介绍在Android中如何正确地使用布局参数以避免运行时错误，特别是ClassCastException，并提供了一个具体的例子来说明如何设置布局参数。

Caused by: java.lang.ClassCastException:android.widget.LinearLayout$LayoutParams  

 
  最近，在android中用代码动态改变某种布局（组件）的高度时，会遇到如题所示的类转换异常。上网查了一下，如下所示：

These supply parameters to the parent of this view specifying how it should be arranged. There are many subclasses of ViewGroup.LayoutParams, and these correspond to the different subclasses of ViewGroup that are responsible for arranging their children.

So basically, if you are adding a view to another, you MUST set the LayoutParams of the view to the LayoutParams type that the parent uses, or you will get a runtime error.

  我是这样理解的，如果你要将一个view添加到另一个布局中，你必须设定该View的布局参数为其父类所使用的布局参数类型。即要在代码中动态改变某组件的高度，其布局参数类型应该是其父类所使用的布局参数类型。
[java]  view plain copy
  1.  比如：  
  2.   
  3.   
  4. <LinearLayout  
  5.   
  6.   xmlns:android="http://schemas.android.com/apk/res/android"    
  7.   
  8.   android:layout_width="wrap_content"  
  9.   
  10.   android:layout_height="wrap_content">    
  11.   
  12.     
  13.   
  14. <FrameLayout   
  15.   
  16. android:id="@+id/FrameLayout01"   
  17.   
  18. android:layout_width="wrap_content"   
  19.   
  20. android:layout_height="wrap_content" />   
  21.   
  22. </LinearLayout>  
  23.   
  24. 若想在代码中动态改变FrameLayout的大小，应该这样写：  
  25.   
  26.   
  27. FrameLayout frameLayout=(FrameLayout) convertView.findViewById(R.id.FrameLayout01);    
  28.   
  29.  LinearLayout.LayoutParams ff=new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, height);   
frameLayout.setLayoutParams(ff);
注：其布局参数类型应该线性布局 LinearLayout.LayoutParams 的类型，而不是帧布局 FrameLayout  .LayoutParams。
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http://blog.163.com/smilecatflower_18z/blog/static/19262704520120974119643/ 最近，在android中用代码动态改变某种布局（组件）的高度时，会遇到如题所示的类转换异常。上网查了一下，如下所示： These supply parameters to the parent of this view specif
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package com.example.kucun2.entity.data; import android.util.Log; import androidx.annotation.NonNull; import com.google.gson.Gson; import java.io.IOException; import java.lang.reflect.Method; import java.lang.reflect.ParameterizedType; import java.lang.reflect.Proxy; import java.lang.reflect.Type; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.ListIterator; import java.util.Map; import java.util.Objects; import java.util.Set; import okhttp3.Call; import okhttp3.Callback; import okhttp3.MediaType; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.RequestBody; import okhttp3.Response; /** * 支持数据变更自动同步的泛型集合类 * @param <T> 继承自 SynchronizableEntity 的实体类型 */ public class SynchronizedList<T extends SynchronizableEntity> implements List<T> { private final List<T> list = new ArrayList<>(); private final OkHttpClient client = new OkHttpClient(); private static final Gson gson = new Gson(); private static final MediaType JSON = MediaType.get("application/json; charset=utf-8"); private final Class<T> entityClass; // 类型标记 // 添加批量操作模式标志 private boolean batchMode = false; // 属性变更监听器 private final List<PropertyChangeListener<T>> listeners = new ArrayList<>(); // 直接接受Class参数的构造函数 public SynchronizedList(Class<T> entityClass) { this.entityClass = entityClass; } // 安全的类型转换方法 private T safeCast(Object o) { if (o != null && entityClass.isInstance(o)) { return entityClass.cast(o); } return null; } public interface PropertyChangeListener<T> { void onPropertyChange(T entity, String propertyName, Object oldValue, Object newValue); } public void addPropertyChangeListener(PropertyChangeListener<T> listener) { listeners.add(listener); } public void removePropertyChangeListener(PropertyChangeListener<T> listener) { listeners.remove(listener); } // 添加方法来获取原始对象 @SuppressWarnings("unchecked") public T getOriginal(T proxy) { if (proxy == null) return null; // 检查是否为代理对象 if (java.lang.reflect.Proxy.isProxyClass(proxy.getClass())) { try { java.lang.reflect.InvocationHandler handler = java.lang.reflect.Proxy.getInvocationHandler(proxy); if (handler instanceof IProxyHandler) { Object original = ((IProxyHandler) handler).getOriginal(); // 安全类型检查 if (entityClass.isInstance(original)) { return (T) original; } } } catch (Exception e) { Log.e("SynchronizedList", "Failed to get proxy handler", e); } } return proxy; } /** * 同步实体到后端 * * @param entity 要同步的实体 */ private void syncEntity(T entity) { if (batchMode) return; String operation = "add"; T originalEntity = getOriginal(entity); String endpoint = originalEntity.getEndpoint(operation); String json = gson.toJson(originalEntity); RequestBody body = RequestBody.create(json, JSON); Request request = new Request.Builder() .url(endpoint) .method(getHttpMethod(operation), body) .build(); client.newCall(request).enqueue(new Callback() { @Override public void onFailure(@NonNull Call call, @NonNull IOException e) { Log.e("SynchronizedList", "同步失败: " + entity.getClass().getSimpleName(), e); } @Override public void onResponse(@NonNull Call call, @NonNull Response response) { if (!response.isSuccessful()) { Log.e("SynchronizedList", "同步失败: " + response.code() + " - " + response.message()); } response.close(); } }); } // 添加用于批量操作的方法 public void beginBatch() { this.batchMode = true; } public void endBatch() { this.batchMode = false; // 批量结束后触发一次全量同步 syncAllEntities(); } private void syncAllEntities() { for (T entity : list) { syncEntity(entity); } } private String getHttpMethod(String operation) { switch (operation) { case "add": return "POST"; case "update": return "PUT"; case "delete": return "DELETE"; default: return "POST"; } } // 获取类实现的所有接口（包括父类接口） private Class<?>[] getInterfaces(Class<?> clazz) { Set<Class<?>> interfaces = new HashSet<>(); while (clazz != null) { interfaces.addAll(Arrays.asList(clazz.getInterfaces())); clazz = clazz.getSuperclass(); } return interfaces.toArray(new Class<?>[0]); } /** * 创建代理对象，用于监听属性变更 */ // 优化 createProxy 方法 private T createProxy(T original) { if (original == null) return null; // 确保代理对象实现原始对象的所有接口+目标接口 Class<?>[] interfaces = new Class<?>[]{ SynchronizableEntity.class, // 强制实现目标接口 entityClass // 实体类或接口 }; // 使用动态代理实现接口 return (T) Proxy.newProxyInstance( original.getClass().getClassLoader(), new Class<?>[] { EntityClassGrassrootsid.class }, // 只代理接口 new EntityProxyHandler(original) ); // if (!entityClass.isInstance(original)) { // throw new IllegalArgumentException("Invalid entity type"); // } // // 这里使用动态代理模式监听setter方法调用 // return (T) java.lang.reflect.Proxy.newProxyInstance( // original.getClass().getClassLoader(), // original.getClass().getInterfaces(), // (proxy, method, args) -> { // // 只拦截setter方法 // if (method.getName().startsWith("set") && args.length == 1) { // String propertyName = method.getName().substring(3); // propertyName = propertyName.substring(0, 1).toLowerCase() + propertyName.substring(1); // // // 获取旧值 // Object oldValue = original.getClass() // .getMethod("get" + propertyName.substring(0, 1).toUpperCase() + propertyName.substring(1)) // .invoke(original); // // // 调用原始方法 // Object result = method.invoke(original, args); // // // 触发监听器 // for (PropertyChangeListener<T> listener : listeners) { // listener.onPropertyChange(original, propertyName, oldValue, args[0]); // } // // // 自动同步到后端 // syncEntity(original); // return result; // } // return method.invoke(original, args); // } // ); } // 以下是List接口的实现 @Override public int size() { return list.size(); } @Override public boolean isEmpty() { return list.isEmpty(); } @Override public boolean contains(Object o) { return list.contains(o); } @NonNull @Override public Iterator<T> iterator() { return list.iterator(); } @NonNull @Override public Object[] toArray() { return list.toArray(); } @NonNull @Override public <T1> T1[] toArray(@NonNull T1[] a) { return list.toArray(a); } @Override public boolean add(T t) { T proxy = createProxy(t); boolean result = list.add(proxy); if (!batchMode) { syncEntity(proxy); } return result; // 添加时创建代理 } @Override public boolean remove(Object o) { T entity = safeCast(o); if (entity != null) { syncEntity((T) entity); // 删除前同步 } return list.remove(o); } @Override public boolean containsAll(@NonNull Collection<?> c) { return list.containsAll(c); } @Override public boolean addAll(@NonNull Collection<? extends T> c) { boolean modified = false; for (T t : c) { modified |= add(t); } return modified; } @Override public boolean addAll(int index, @NonNull Collection<? extends T> c) { for (T t : c) { add(index++, t); } return true; } @Override public boolean removeAll(@NonNull Collection<?> c) { for (Object o : c) { T entity = safeCast(o); if (entity != null) { syncEntity(entity); } } return list.removeAll(c); } @Override public boolean retainAll(@NonNull Collection<?> c) { List<T> toRemove = new ArrayList<>(); for (T t : list) { if (!c.contains(t)) { toRemove.add(t); } } // 使用安全转换 for (T entity : toRemove) { syncEntity(entity); } return list.retainAll(c); } @Override public void clear() { for (T t : list) { syncEntity(t); // 清空前同步 } list.clear(); } @Override public T get(int index) { return list.get(index); } @Override public T set(int index, T element) { T old = list.set(index, createProxy(element)); if (old != null) { syncEntity(old); // 替换旧元素前同步 } return old; } @Override public void add(int index, T element) { list.add(index, createProxy(element)); } @Override public T remove(int index) { T removed = list.remove(index); if (removed != null) { syncEntity(removed); // 删除前同步 } return removed; } @Override public int indexOf(Object o) { return list.indexOf(o); } @Override public int lastIndexOf(Object o) { return list.lastIndexOf(o); } @NonNull @Override public ListIterator<T> listIterator() { return list.listIterator(); } @NonNull @Override public ListIterator<T> listIterator(int index) { return list.listIterator(index); } @NonNull @Override public List<T> subList(int fromIndex, int toIndex) { return list.subList(fromIndex, toIndex); } // 触发属性变更通知 // 添加类型安全的属性监听 private void firePropertyChange(T entity, String propertyName, Object oldValue, Object newValue) { if (oldValue != null && newValue != null && oldValue.equals(newValue)) { return; // 值未变化时不触发监听 } for (PropertyChangeListener<T> listener : listeners) { try { listener.onPropertyChange(entity, propertyName, oldValue, newValue); } catch (Exception e) { Log.e("SynchronizedList", "Listener error", e); } } } // 修改代理处理器以支持获取原始对象 /* 完整的 EntityProxyHandler 实现 */ private class EntityProxyHandler implements IProxyHandler, java.lang.reflect.InvocationHandler { private final T original; private final Map<String, Object> propertyValues = new HashMap<>(); public EntityProxyHandler(T original) { this.original = original; cachePropertyValues(); } private void cachePropertyValues() { // 获取类信息 Class<?> clazz = original.getClass(); // 遍历所有getter方法 for (Method method : clazz.getMethods()) { String methodName = method.getName(); // 只处理getter方法 if (methodName.startsWith("get") && !methodName.equals("getClass") && method.getParameterTypes().length == 0) { try { // 获取属性名（去掉"get"并将首字母小写） String propertyName = methodName.substring(3); propertyName = Character.toLowerCase(propertyName.charAt(0)) + propertyName.substring(1); // 调用getter获取值 Object value = method.invoke(original); propertyValues.put(propertyName, value); } catch (Exception e) { Log.e("Wrapper", "Failed to cache property " + methodName, e); } } } } @Override public T getOriginal() { return original; } @Override public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { String methodName = method.getName(); // 只拦截setter方法 if (methodName.startsWith("set") && args != null && args.length == 1) { String propertyName = methodName.substring(3); propertyName = Character.toLowerCase(propertyName.charAt(0)) + propertyName.substring(1); Object oldValue = propertyValues.get(propertyName); Object newValue = args[0]; // 如果值未改变，不触发同步 if (Objects.equals(oldValue, newValue)) { return null; } // 调用原始对象的setter方法 Method setter = original.getClass().getMethod(methodName, newValue.getClass()); setter.invoke(original, newValue); // 更新属性缓存 propertyValues.put(propertyName, newValue); // 触发属性变更监听 firePropertyChange(original, propertyName, oldValue, newValue); // 非批量模式下自动同步 if (!batchMode) { syncEntity(original); } } // 其他接口方法直接调用原始对象 return method.invoke(original, args); } private Object getPropertyValue(String propertyName) { String getterName = "get" + propertyName.substring(0, 1).toUpperCase() + propertyName.substring(1); try { Method getter = original.getClass().getMethod(getterName); return getter.invoke(original); } catch (Exception e) { Log.e("ProxyHandler", "Failed to get property value: " + propertyName, e); return null; } } } // 在 SynchronizedList 类中添加 private interface IProxyHandler { Object getOriginal(); } }package com.example.kucun2.entity; import android.annotation.SuppressLint; import com.example.kucun2.entity.data.SynchronizableEntity; import java.util.Objects; //板材 public class Bancai extends SynchronizableEntity { private Integer id; private Caizhi caizhi; private Mupi mupi1; private Mupi mupi2; private Double houdu; public Bancai() { } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; Bancai bancai = (Bancai) o; return Objects.equals(id, bancai.id) && Objects.equals(caizhi, bancai.caizhi) && Objects.equals(mupi1, bancai.mupi1) && Objects.equals(mupi2, bancai.mupi2) && Objects.equals(houdu, bancai.houdu); } @Override public int hashCode() { return Objects.hash(id, caizhi, mupi1, mupi2, houdu); } public Bancai(Integer id, Caizhi caizhi, Mupi mupi1, Mupi mupi2, Double houdu) { this.id = id; this.caizhi = caizhi; this.mupi1 = mupi1; this.mupi2 = mupi2; this.houdu = houdu; } public Integer getId() { return id; } public Caizhi getCaizhi() { return caizhi; } public Mupi getMupi1() { return mupi1; } public Mupi getMupi2() { return mupi2; } public Double getHoudu() { return houdu; } public void setId(Integer id) { this.id = id; } public void setCaizhi(Caizhi caizhi) { this.caizhi = caizhi; if (caizhi!=null&&caizhi.getBancais()!=null){ this.caizhi.getBancais().add(this); } } public void setMupi1(Mupi mupi1) { this.mupi1 = mupi1; if (mupi1!=null&&mupi1.getBancais()!=null){ this.mupi1.getBancais().add(this); } } public void setMupi2(Mupi mupi2) { this.mupi2 = mupi2; if (mupi2!=null&&mupi2.getBancais()!=null){ this.mupi2.getBancais().add(this); } } public void setHoudu(Double houdu) { this.houdu = houdu; } /** * 表格中显示的文字 * @return */ @SuppressLint("DefaultLocale") public String TableText(){ String boardInfo=""; boardInfo +=String.format("%.1f", this.getHoudu())+this.getCaizhi().getName()+"("; if (mupi1 != null) { boardInfo += (this.getMupi1().getYou()?this.getMupi1().getName()+"油":this.getMupi1().getName()); } if (mupi2 != null&&mupi1 != null) { boardInfo+=","; } if (mupi2 != null) { boardInfo += (this.getMupi2().getYou()?this.getMupi2().getName()+"油":this.getMupi2().getName()); } boardInfo+=")"; return boardInfo; } } package com.example.kucun2.entity.data; import com.example.kucun2.function.MyAppFnction; public abstract class SynchronizableEntity implements EntityClassGrassrootsid { /** * 添加url * @param type 操作增删改查 * @return 返回相对url */ public String getEndpoint(String type){ //从String.xml获取url return MyAppFnction.getStringResource("String","url_"+type+"_"+this.getClass().getSimpleName()); } } package com.example.kucun2.ui.jinhuo; import static android.content.ContentValues.TAG; import android.app.AlertDialog; import android.app.DatePickerDialog; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.MultiAutoCompleteTextView; import android.widget.RadioGroup; import android.widget.SearchView; import android.widget.Spinner; import android.widget.TextView; import android.widget.Toast; import androidx.annotation.NonNull; import androidx.fragment.app.Fragment; import com.example.kucun2.R; import com.example.kucun2.entity.*; import com.example.kucun2.entity.data.Data; import com.example.kucun2.function.Adapter; import com.google.android.material.textfield.TextInputEditText; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; import java.util.Locale; import java.util.Objects; import java.util.Random; public class AddInventoryFragment extends Fragment { private Spinner spinnerDingdan, spinnerChanpin, spinnerZujian, spinnerBancai; private EditText etShuliang; private RadioGroup rgType; private Dingdan selectedDingdan; private Chanpin selectedChanpin; private Zujian selectedZujian; private Bancai selectedBancai; // 创建新订单产品组件按钮 private Button btnNewDingdan, btnAddChanpin, btnAddZujian; // 日期格式化 private final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()); /** * 初始化 * @param inflater The LayoutInflater object that can be used to inflate * any views in the fragment, * @param container If non-null, this is the parent view that the fragment's * UI should be attached to. The fragment should not add the view itself, * but this can be used to generate the LayoutParams of the view. * @param savedInstanceState If non-null, this fragment is being re-constructed * from a previous saved state as given here. * * @return */ @Override public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_add_inventory, container, false); // 初始化UI组件 spinnerDingdan = view.findViewById(R.id.spinner_dingdan); spinnerChanpin = view.findViewById(R.id.spinner_chanpin); spinnerZujian = view.findViewById(R.id.spinner_zujian); spinnerBancai = view.findViewById(R.id.spinner_bancai); etShuliang = view.findViewById(R.id.et_shuliang); rgType = view.findViewById(R.id.rg_type); Button btnSubmit = view.findViewById(R.id.btn_submit); // 初始化新按钮 btnNewDingdan = view.findViewById(R.id.btn_new_dingdan); btnAddChanpin = view.findViewById(R.id.btn_add_chanpin); btnAddZujian = view.findViewById(R.id.btn_add_zujian); // 设置按钮点击事件 btnNewDingdan.setOnClickListener(v -> createNewDingdan()); btnAddChanpin.setOnClickListener(v -> showAddChanpinDialog()); btnAddZujian.setOnClickListener(v -> addZujianToChanpin()); // 设置订单选择器 setupDingdanSpinner(); // 提交按钮点击事件 btnSubmit.setOnClickListener(v -> addInventoryRecord()); return view; } private void setupDingdanSpinner() { Adapter.setupDingdanSpinner(spinnerDingdan,Data.dingdans,getContext()); spinnerDingdan.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { selectedDingdan = (Dingdan) parent.getItemAtPosition(position); setupChanpinSpinner(selectedDingdan); } @Override public void onNothingSelected(AdapterView<?> parent) {} }); } private void setupChanpinSpinner(Dingdan dingdan) { // 获取该订单的产品列表 List<Chanpin> chanpins = new ArrayList<>(); for (Dingdan_Chanpin dc : dingdan.getChanpins()) { chanpins.add(dc.getChanpin()); } Adapter.setupChanpinSpinner(spinnerChanpin,chanpins,getContext()); spinnerChanpin.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { selectedChanpin = (Chanpin) parent.getItemAtPosition(position); setupZujianSpinner(selectedChanpin); } @Override public void onNothingSelected(AdapterView<?> parent) {} }); } /** * 组件下拉框刷新 * @param chanpin */ private void setupZujianSpinner(Chanpin chanpin) { // 获取该产品的组件列表 List<Zujian> zujians = new ArrayList<>(); for (Chanpin_Zujian cz : chanpin.getZujians()) { zujians.add(cz.getZujian()); } Adapter.setupZujianSpinner(spinnerZujian,zujians,getContext()); spinnerZujian.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { selectedZujian = (Zujian) parent.getItemAtPosition(position); setupBancaiSpinner(selectedChanpin, selectedZujian); } @Override public void onNothingSelected(AdapterView<?> parent) {} }); } /** * 板材刷新 * @param chanpin * @param zujian */ private void setupBancaiSpinner(Chanpin chanpin, Zujian zujian) { // 获取该组件关联的板材 List<Bancai> bancais = new ArrayList<>(); for (Chanpin_Zujian cz : chanpin.getZujians()) { if (cz.getZujian().getId().equals(zujian.getId())) { bancais.add(cz.getBancai()); } } Adapter.setupBancaiSpinners(spinnerBancai,bancais,getContext()); spinnerBancai.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { selectedBancai = (Bancai) parent.getItemAtPosition(position); } @Override public void onNothingSelected(AdapterView<?> parent) {} }); } // ... addInventoryRecord和createRecord方法保持不变 ... private void addInventoryRecord() { // 验证必填项 if (selectedDingdan == null || selectedChanpin == null || selectedZujian == null || selectedBancai == null) { Toast.makeText(getContext(), "请选择订单、产品、组件和板材", Toast.LENGTH_SHORT).show(); return; } String shuliangStr = etShuliang.getText().toString().trim(); if (shuliangStr.isEmpty()) { Toast.makeText(getContext(), "请输入数量", Toast.LENGTH_SHORT).show(); return; } // 解析数量 int shuliang; try { shuliang = Integer.parseInt(shuliangStr); } catch (NumberFormatException e) { Toast.makeText(getContext(), "请输入有效的数量", Toast.LENGTH_SHORT).show(); return; } // 确定操作类型（进货或消耗） boolean isJinhuo = rgType.getCheckedRadioButtonId() == R.id.rb_jinhuo; // 实际开发中应从登录信息获取当前用户 User currentUser = new User(1, "当前用户", "user", "password",1); // 创建记录 createRecord(selectedDingdan, selectedChanpin, selectedZujian, selectedBancai, shuliang, isJinhuo, currentUser); Toast.makeText(getContext(), "记录添加成功", Toast.LENGTH_SHORT).show(); etShuliang.setText(""); // 清空输入框 } private void createRecord(Dingdan dingdan, Chanpin chanpin, Zujian zujian, Bancai bancai, int shuliang, boolean isJinhuo, User user) { if (isJinhuo) { // 创建进货记录 Jinhuo jinhuo = new Jinhuo(); jinhuo.setId(Data.jinhuoList.size() + 1); jinhuo.setDingdan(dingdan); jinhuo.setChanpin(chanpin); jinhuo.setZujian(zujian); jinhuo.setBancai(bancai); jinhuo.setShuliang(shuliang); jinhuo.setDate(new Date()); jinhuo.setUser(user); Data.jinhuoList.add(jinhuo); } else { // 消耗数量转为负数 shuliang = -shuliang; } // 更新库存 updateKucun(bancai, shuliang); } private void updateKucun(Bancai bancai, int changeAmount) { // 查找现有库存记录 for (Kucun k : Data.kucuns) { if (k.getBancai().getId().equals(bancai.getId())) { k.setShuliang(k.getShuliang() + changeAmount); return; } } // 如果没有找到库存记录，创建新的 Kucun newKucun = new Kucun(); newKucun.setId(Data.kucuns.size() + 1); newKucun.setBancai(bancai); newKucun.setShuliang(Math.max(changeAmount, 0)); // 确保不为负 Data.kucuns.add(newKucun); } // 新建订单方法 private void createNewDingdan() { showNewDingdanDialog(); } /** * 向订单添加产品 * @param chanpin */ private void addChanpinToDingdan(Chanpin chanpin) { if (selectedDingdan == null) { Toast.makeText(getContext(), "请先选择订单", Toast.LENGTH_SHORT).show(); return; } // 检查产品是否已在订单中 for (Dingdan_Chanpin dc : selectedDingdan.getChanpins()) { if (dc.getChanpin().getId().equals(chanpin.getId())) { Toast.makeText(getContext(), "该产品已添加到订单", Toast.LENGTH_SHORT).show(); return; } } // 添加到当前订单的产品列表 Dingdan_Chanpin dc = new Dingdan_Chanpin(); dc.setId(selectedDingdan.getChanpins().size() + 1); dc.setChanpin(chanpin); dc.setDingdan(selectedDingdan); selectedDingdan.getChanpins().add(dc); // 刷新产品下拉框 setupChanpinSpinner(selectedDingdan); // 选中新添加的产品 spinnerChanpin.setSelection(selectedDingdan.getChanpins().size() - 1); Toast.makeText(getContext(), "产品添加成功", Toast.LENGTH_SHORT).show(); } // 为当前产品添加组件 private void addZujianToChanpin() { if (selectedChanpin == null) { Toast.makeText(getContext(), "请先选择产品", Toast.LENGTH_SHORT).show(); return; } // // 创建新组件（示例） // Zujian newZujian = new Zujian(); // newZujian.setId( (Data.zujians.size() + 1)); // newZujian.setName("新组件" + System.currentTimeMillis()); // // // 添加到全局列表 // Data.zujians.add(newZujian); // // // 添加到当前产品的组件列表 // Chanpin_Zujian cz = new Chanpin_Zujian(); // cz.setId(selectedChanpin.getZujians().size() + 1); // cz.setZujian(newZujian); // cz.setChanpin(selectedChanpin); // selectedChanpin.getZujians().add(cz); // // // 刷新组件下拉框 // setupZujianSpinner(selectedChanpin); // spinnerZujian.setSelection(selectedChanpin.getZujians().size() - 1); // // Toast.makeText(getContext(), "组件添加成功", Toast.LENGTH_SHORT).show(); showCreateZujianDialog(); } // 新建订单对话框 /*** * 新建订单对话框 */ private void showNewDingdanDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("新建订单"); // 加载布局 View dialogView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_new_dingdan, null); EditText etOrderNumber = dialogView.findViewById(R.id.et_order_number); EditText etOrderDate = dialogView.findViewById(R.id.et_order_date); EditText etDeliveryDate = dialogView.findViewById(R.id.et_delivery_date); Button btnPickOrderDate = dialogView.findViewById(R.id.btn_pick_order_date); Button btnPickDeliveryDate = dialogView.findViewById(R.id.btn_pick_delivery_date); // 设置今日日期作为默认值 Date today = new Date(); etOrderDate.setText(dateFormat.format(today)); // 日期选择监听器 DatePickerDialog.OnDateSetListener orderDateListener = (view, year, month, dayOfMonth) -> { Calendar cal = Calendar.getInstance(); cal.set(year, month, dayOfMonth); etOrderDate.setText(dateFormat.format(cal.getTime())); }; DatePickerDialog.OnDateSetListener deliveryDateListener = (view, year, month, dayOfMonth) -> { Calendar cal = Calendar.getInstance(); cal.set(year, month, dayOfMonth); etDeliveryDate.setText(dateFormat.format(cal.getTime())); }; // 下单日期选择按钮 btnPickOrderDate.setOnClickListener(v -> { Calendar cal = Calendar.getInstance(); new DatePickerDialog(requireContext(), orderDateListener, cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH)) .show(); }); /** * / 出货日期选择按钮 */ btnPickDeliveryDate.setOnClickListener(v -> { Calendar cal = Calendar.getInstance(); new DatePickerDialog(requireContext(), deliveryDateListener, cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH)) .show(); }); builder.setView(dialogView); builder.setPositiveButton("创建", (dialog, which) -> { String orderNumber = etOrderNumber.getText().toString().trim(); String orderDateStr = etOrderDate.getText().toString(); String deliveryDateStr = etDeliveryDate.getText().toString(); for (Dingdan dingdan:Data.dingdans ) { if(dingdan.getNumber().equals(orderNumber)){ Toast.makeText(getContext(), "已有该订单号", Toast.LENGTH_SHORT).show(); return; } } // 验证输入 if (orderNumber.isEmpty()) { Toast.makeText(getContext(), "请输入订单号", Toast.LENGTH_SHORT).show(); return; } try { // 解析日期 Date orderDate = dateFormat.parse(orderDateStr); Date deliveryDate = deliveryDateStr.isEmpty() ? null : dateFormat.parse(deliveryDateStr); // 创建订单 createAndSaveDingdan(orderNumber, orderDate, deliveryDate); } catch (ParseException e) { Toast.makeText(getContext(), "日期格式错误", Toast.LENGTH_SHORT).show(); } }); builder.setNegativeButton("取消", null); builder.show(); } /** * 创建并保存订单 */ private void createAndSaveDingdan(String orderNumber, Date orderDate, Date deliveryDate) { Dingdan newDingdan = new Dingdan(); newDingdan.setId(Data.dingdans.size() + 1); newDingdan.setNumber(orderNumber); newDingdan.setXiadan(orderDate); newDingdan.setJiaohuo(deliveryDate); newDingdan.setChanpins(new ArrayList<>()); Data.dingdans.add(newDingdan); // 刷新下拉框 setupDingdanSpinner(); spinnerDingdan.setSelection(Data.dingdans.size() - 1); Toast.makeText(getContext(), "新建订单成功", Toast.LENGTH_SHORT).show(); } /** * 显示添加产品弹窗 */ private void showAddChanpinDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("添加产品到订单"); // 加载布局 View dialogView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_add_chanpin, null); Spinner spinnerChanpinSelection = dialogView.findViewById(R.id.spinner_chanpin_selection); Button btnNewChanpin = dialogView.findViewById(R.id.btn_new_chanpin); // 设置产品下拉框 Adapter.setupChanpinSpinner(spinnerChanpinSelection, Data.chanpins, getContext()); // 新建产品按钮点击事件 btnNewChanpin.setOnClickListener(v -> { showNewChanpinDialog(() -> { // 新建产品后刷新下拉框 Adapter.setupChanpinSpinner(spinnerChanpinSelection, Data.chanpins, getContext()); // 默认选中新建的产品 spinnerChanpinSelection.setSelection(Data.chanpins.size() - 1); }); }); builder.setView(dialogView); builder.setPositiveButton("添加", (dialog, which) -> { Chanpin selectedChanpin = (Chanpin) spinnerChanpinSelection.getSelectedItem(); if (selectedChanpin != null) { // 将选中的产品添加到当前订单 addChanpinToDingdan(selectedChanpin); } }); builder.setNegativeButton("取消", null); builder.show(); } /** * 显示新建产品弹窗 * @param refreshCallback 新建后的回调，用于刷新产品列表 */ private void showNewChanpinDialog(Runnable refreshCallback) { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("新建产品"); View dialogView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_new_chanpin, null); EditText etChanpinName = dialogView.findViewById(R.id.et_chanpin_name); builder.setView(dialogView); builder.setPositiveButton("创建", (dialog, which) -> { String chanpinName = etChanpinName.getText().toString().trim(); if (chanpinName.isEmpty()) { Toast.makeText(getContext(), "请输入产品名称", Toast.LENGTH_SHORT).show(); return; } // 检查名称是否重复 for (Chanpin cp : Data.chanpins) { if (cp.getName().equals(chanpinName)) { Toast.makeText(getContext(), "产品名称重复", Toast.LENGTH_SHORT).show(); return; } } // 创建新产品 Chanpin newChanpin = new Chanpin(); newChanpin.setId(Data.chanpins.size() + 1); newChanpin.setName(chanpinName); newChanpin.setZujians(new ArrayList<>()); Data.chanpins.add(newChanpin); refreshCallback.run(); Toast.makeText(getContext(), "产品创建成功", Toast.LENGTH_SHORT).show(); }); builder.setNegativeButton("取消", null); builder.show(); } /** * 添加新组件 */ private void showCreateZujianDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("添加新组件"); // 创建自定义布局 View dialogView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_create_zujian_bancai, null); EditText etZujianName = dialogView.findViewById(R.id.et_zujian_name); Spinner spinnerbancai = dialogView.findViewById(R.id.spinner_bancai); SearchView searchBancai = dialogView.findViewById(R.id.search_bancai); Button btnAddBancai = dialogView.findViewById(R.id.btn_add_bancai); // 设置添加板材按钮点击事件 btnAddBancai.setOnClickListener(v -> { // 弹出添加板材的弹窗，并传入当前Spinner用于刷新 showCreateBancaiDialog(spinnerbancai); }); // 板材适配器 Adapter.setupBancaiSpinners(spinnerbancai,Data.bancais,getContext()); // 设置搜索功能 searchBancai.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String query) { return false; } @Override public boolean onQueryTextChange(String newText) { // 过滤板材列表 List<Bancai> filteredList = new ArrayList<>(); for (Bancai bancai : Data.bancais) { if ( bancai.TableText().toLowerCase().contains(newText.toLowerCase())) { filteredList.add(bancai); } } // 板材适配器 Adapter.setupBancaiSpinners(spinnerbancai,filteredList,getContext()); return true; } }); // 添加木皮预览标签 builder.setView(dialogView); builder.setPositiveButton("创建", (dialog, which) -> { // 获取用户输入 String zujianName = etZujianName.getText().toString().trim(); Bancai selectedBancai = (Bancai) spinnerbancai.getSelectedItem(); if (zujianName.isEmpty()) { Toast.makeText(getContext(), "请输入组件名称", Toast.LENGTH_SHORT).show(); return; } // 创建新组件 Zujian newZujian = new Zujian(); newZujian.setId(Data.zujians.size() + 1); newZujian.setName(zujianName); // 创建新板材 // 添加到全局列表 Data.zujians.add(newZujian); // 添加到当前产品的组件列表 Chanpin_Zujian cz = new Chanpin_Zujian(); cz.setId(selectedChanpin.getZujians().size() + 1); cz.setZujian(newZujian); cz.setBancai(selectedBancai); // 关联新创建的板材 cz.setChanpin(selectedChanpin); selectedChanpin.getZujians().add(cz); // 刷新组件下拉框 setupZujianSpinner(selectedChanpin); spinnerZujian.setSelection(selectedChanpin.getZujians().size() - 1); Toast.makeText(getContext(), "组件和板材添加成功", Toast.LENGTH_SHORT).show(); }); builder.setNegativeButton("取消", null); builder.show(); } // 显示创建板材的弹窗 private void showCreateBancaiDialog(Spinner spinnerToRefresh) { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("添加新板材"); // 加载布局 View dialogView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_create_bancai, null); Spinner spinnerCaizhi = dialogView.findViewById(R.id.spinner_caizhi); Spinner spinnerMupi1 = dialogView.findViewById(R.id.spinner_mupi1); Spinner spinnerMupi2 = dialogView.findViewById(R.id.spinner_mupi2); EditText TextInputEditTextHoudu=dialogView.findViewById(R.id.edittext_houdu); TextInputEditTextHoudu.setTextIsSelectable(true); // 绑定新建材质按钮 Button btnNewCaizhi = dialogView.findViewById(R.id.btn_new_caizhi); btnNewCaizhi.setOnClickListener(v -> { showNewOptionDialog("材质", option -> { // 避免重复添加 for (Caizhi caizhi : Data.caizhis) { if (caizhi.getName().equals(option)) return; } // 创建新材质 Caizhi newCaizhi = new Caizhi(); newCaizhi.setName(option); newCaizhi.setId(Data.caizhis.size() + 1); newCaizhi.setBancais(new ArrayList<>()); Data.caizhis.add(newCaizhi); // 刷新下拉框 Adapter.setupCaizhiSpinner(spinnerCaizhi, Data.caizhis, requireContext()); spinnerCaizhi.setSelection(Data.caizhis.size() - 1); }); }); // 绑定新建木皮按钮 Button btnNewMupi = dialogView.findViewById(R.id.btn_new_mupi); btnNewMupi.setOnClickListener(v -> { // 弹出新建木皮对话框 showNewMupiDialog(() -> { // 回调中刷新木皮下拉框 Adapter.setupMupiSpinner(spinnerMupi1, Data.mupis, requireContext()); Adapter.setupMupiSpinner(spinnerMupi2, Data.mupis, requireContext()); }); }); // 获取所有材质选项（从现有板材中提取） List<Caizhi> allCaizhi = Data.caizhis; List<Mupi> allMupi = Data.mupis; // 设置下拉框适配器 Adapter.setupCaizhiSpinner(spinnerCaizhi, allCaizhi, requireContext()); Adapter.setupMupiSpinner(spinnerMupi1, allMupi, requireContext()); Adapter.setupMupiSpinner(spinnerMupi2, allMupi, requireContext()); builder.setView(dialogView); builder.setPositiveButton("创建", (dialog, which) -> { Caizhi caizhi = (Caizhi)spinnerCaizhi.getSelectedItem() ; Mupi mupi1 = (Mupi)spinnerMupi1.getSelectedItem() ; Mupi mupi2 = (Mupi) spinnerMupi2.getSelectedItem() ; // 获取 TextInputEditText 的内容并进行校验 String houduText = TextInputEditTextHoudu.getText().toString().trim(); Double houdu = null; try { if (!houduText.isEmpty()) { // 检查输入是否为空 houdu = Double.valueOf(houduText); // 尝试将字符串转换为 Double } } catch (NumberFormatException e) { // 捕获转换异常并提示用户 Toast.makeText(getContext(), "厚度输入无效，请输入数字", Toast.LENGTH_SHORT).show(); return; } // 校验 caizhi 和 houdu 是否均有效 if (caizhi == null || houdu == null) { Toast.makeText(getContext(), "请选择材质并输入有效的厚度", Toast.LENGTH_SHORT).show(); return; } // 创建新板材 Bancai newBancai = new Bancai(); newBancai.setId(Data.bancais.size() + 1); newBancai.setCaizhi(caizhi); newBancai.setMupi1(mupi1); newBancai.setMupi2(mupi2); newBancai.setHoudu(houdu); caizhi.getBancais().add(newBancai); if (mupi1 != null) { mupi1.getBancais().add(newBancai); } if (mupi2 != null) { mupi2.getBancais().add(newBancai); } // 添加到全局列表 Data.bancais.add(newBancai); // 刷新Spinner（如果传入） if (spinnerToRefresh != null) { Adapter.setupBancaiSpinners(spinnerToRefresh, Data.bancais, getContext()); spinnerToRefresh.setSelection(Data.bancais.size() - 1); } Toast.makeText(getContext(), "板材添加成功", Toast.LENGTH_SHORT).show(); }); builder.setNegativeButton("取消", null); builder.show(); } // 显示新建选项的弹窗 /** * 显示新建选项的弹窗 * @param type 新建什么 * @param listener 反回 */ private void showNewOptionDialog(String type, OnOptionCreatedListener listener) { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("新建" + type); final EditText input = new EditText(requireContext()); input.setHint("请输入" + type); builder.setView(input); builder.setPositiveButton("确定", (dialog, which) -> { String option = input.getText().toString().trim(); if (!option.isEmpty()) { listener.onOptionCreated(option); } }); builder.setNegativeButton("取消", null); builder.show(); } // 回调接口 interface OnOptionCreatedListener { void onOptionCreated(String option); } // 新建木皮对话框 private void showNewMupiDialog(Runnable refreshCallback) { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("新建木皮"); View view = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_new_mupi, null); EditText etName = view.findViewById(R.id.et_mupi_name); RadioGroup rgFinish = view.findViewById(R.id.rg_finish); builder.setView(view); builder.setPositiveButton("创建", (dialog, which) -> { String name = etName.getText().toString().trim(); if (name.isEmpty()) { Toast.makeText(getContext(), "请输入木皮名称", Toast.LENGTH_SHORT).show(); return; } // 避免重复添加 for (Mupi m : Data.mupis) { if (m.getName().equals(name)) return; } // 创建木皮对象 Mupi newMupi = new Mupi(); newMupi.setId(Data.mupis.size() + 1); newMupi.setName(name); newMupi.setYou(rgFinish.getCheckedRadioButtonId() == R.id.rb_painted); newMupi.setBancais(new ArrayList<>()); Data.mupis.add(newMupi); refreshCallback.run(); }); builder.setNegativeButton("取消", null); builder.show(); } } E FATAL EXCEPTION: main Process: com.example.kucun2, PID: 22195 java.lang.IllegalArgumentException: com.example.kucun2.entity.data.SynchronizableEntity is not an interface at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:635) at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:602) at java.lang.reflect.WeakCache$Factory.get(WeakCache.java:230) at java.lang.reflect.WeakCache.get(WeakCache.java:127) at java.lang.reflect.Proxy.getProxyClass0(Proxy.java:438) at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:873) at com.example.kucun2.entity.data.SynchronizedList.createProxy(SynchronizedList.java:186) at com.example.kucun2.entity.data.SynchronizedList.add(SynchronizedList.java:263) at com.example.kucun2.ui.jinhuo.AddInventoryFragment.createAndSaveDingdan(AddInventoryFragment.java:445) at com.example.kucun2.ui.jinhuo.AddInventoryFragment.lambda$showNewDingdanDialog$8(AddInventoryFragment.java:423) at com.example.kucun2.ui.jinhuo.AddInventoryFragment.$r8$lambda$viLBw5kNmkDSVG17JoXzuH5G85E(Unknown Source:0) at com.example.kucun2.ui.jinhuo.AddInventoryFragment$$ExternalSyntheticLambda20.onClick(D8$$SyntheticClass:0) at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:250) at android.os.Handler.dispatchMessage(Handler.java:109) at android.os.Looper.loopOnce(Looper.java:250) at android.os.Looper.loop(Looper.java:340) at android.app.ActivityThread.main(ActivityThread.java:9913) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:621) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:957) 2025-06-09 20:52:42.415 22195-22195 Process com.example.kucun2 I Sending signal. PID: 22195 SIG: 9 2025-06-09 21:35:57.386 22849-22849 AndroidRuntime com.example.kucun2 E FATAL EXCEPTION: main Process: com.example.kucun2, PID: 22849 java.lang.ClassCastException: $Proxy4 cannot be cast to com.example.kucun2.entity.data.SynchronizableEntity at com.example.kucun2.entity.data.SynchronizedList.createProxy(SynchronizedList.java:188) at com.example.kucun2.entity.data.SynchronizedList.add(SynchronizedList.java:265) at com.example.kucun2.ui.jinhuo.AddInventoryFragment.createAndSaveDingdan(AddInventoryFragment.java:445) at com.example.kucun2.ui.jinhuo.AddInventoryFragment.lambda$showNewDingdanDialog$8(AddInventoryFragment.java:423) at com.example.kucun2.ui.jinhuo.AddInventoryFragment.$r8$lambda$viLBw5kNmkDSVG17JoXzuH5G85E(Unknown Source:0) at com.example.kucun2.ui.jinhuo.AddInventoryFragment$$ExternalSyntheticLambda20.onClick(D8$$SyntheticClass:0) at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:250) at android.os.Handler.dispatchMessage(Handler.java:109) at android.os.Looper.loopOnce(Looper.java:250) at android.os.Looper.loop(Looper.java:340) at android.app.ActivityThread.main(ActivityThread.java:9913) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:621) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:957)
06-10
这个方案可以解决问题，并且更符合Android的设计。由于代码改动较大，这里不提供完整代码，但您可以根据上述思路修改。如果实体类的setter方法很多，修改起来很麻烦，我们可以使用IDE的自动生成setter模板，或者在...
package com.example.kucun2.ui.jinhuo; import static android.content.ContentValues.TAG; import android.app.AlertDialog; import android.app.DatePickerDialog; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.MultiAutoCompleteTextView; import android.widget.RadioGroup; import android.widget.SearchView; import android.widget.Spinner; import android.widget.TextView; import android.widget.Toast; import androidx.annotation.NonNull; import androidx.fragment.app.Fragment; import com.example.kucun2.R; import com.example.kucun2.entity.*; import com.example.kucun2.entity.data.Data; import com.example.kucun2.function.Adapter; import com.google.android.material.textfield.TextInputEditText; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; import java.util.Locale; import java.util.Objects; import java.util.Random; public class AddInventoryFragment extends Fragment { private Spinner spinnerDingdan, spinnerChanpin, spinnerZujian, spinnerBancai; private EditText etShuliang; private RadioGroup rgType; private Dingdan selectedDingdan; private Chanpin selectedChanpin; private Zujian selectedZujian; private Bancai selectedBancai; // 创建新订单产品组件按钮 private Button btnNewDingdan, btnAddChanpin, btnAddZujian; // 日期格式化 private final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()); /** * 初始化 * @param inflater The LayoutInflater object that can be used to inflate * any views in the fragment, * @param container If non-null, this is the parent view that the fragment's * UI should be attached to. The fragment should not add the view itself, * but this can be used to generate the LayoutParams of the view. * @param savedInstanceState If non-null, this fragment is being re-constructed * from a previous saved state as given here. * * @return */ @Override public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_add_inventory, container, false); // 初始化UI组件 spinnerDingdan = view.findViewById(R.id.spinner_dingdan); spinnerChanpin = view.findViewById(R.id.spinner_chanpin); spinnerZujian = view.findViewById(R.id.spinner_zujian); spinnerBancai = view.findViewById(R.id.spinner_bancai); etShuliang = view.findViewById(R.id.et_shuliang); rgType = view.findViewById(R.id.rg_type); Button btnSubmit = view.findViewById(R.id.btn_submit); // 初始化新按钮 btnNewDingdan = view.findViewById(R.id.btn_new_dingdan); btnAddChanpin = view.findViewById(R.id.btn_add_chanpin); btnAddZujian = view.findViewById(R.id.btn_add_zujian); // 设置按钮点击事件 btnNewDingdan.setOnClickListener(v -> createNewDingdan()); btnAddChanpin.setOnClickListener(v -> showAddChanpinDialog()); btnAddZujian.setOnClickListener(v -> addZujianToChanpin()); // 设置订单选择器 setupDingdanSpinner(); // 提交按钮点击事件 btnSubmit.setOnClickListener(v -> addInventoryRecord()); return view; } private void setupDingdanSpinner() { Adapter.setupDingdanSpinner(spinnerDingdan,Data.dingdans,getContext()); spinnerDingdan.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { selectedDingdan = (Dingdan) parent.getItemAtPosition(position); setupChanpinSpinner(selectedDingdan); } @Override public void onNothingSelected(AdapterView<?> parent) {} }); } private void setupChanpinSpinner(Dingdan dingdan) { // 获取该订单的产品列表 List<Chanpin> chanpins = new ArrayList<>(); if (dingdan != null && dingdan.getDingdanChanpin() != null) { for (Dingdan_Chanpin dc : dingdan.getDingdanChanpin()) { if (dc != null && dc.getChanpin() != null) { chanpins.add(dc.getChanpin()); } } } // 设置产品下拉框适配器 Adapter.setupChanpinSpinner(spinnerChanpin, chanpins, getContext()); // 设置产品选择监听器 spinnerChanpin.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { selectedChanpin = (Chanpin) parent.getItemAtPosition(position); if (selectedChanpin != null) { setupZujianSpinner(selectedChanpin); } } @Override public void onNothingSelected(AdapterView<?> parent) {} }); } /** * 组件下拉框刷新 * @param chanpin */ private void setupZujianSpinner(Chanpin chanpin) { // 获取该产品的组件列表 List<Zujian> zujians = new ArrayList<>(); for (Chanpin_Zujian cz : chanpin.getChanpinZujian()) { zujians.add(cz.getZujian()); } Adapter.setupZujianSpinner(spinnerZujian,zujians,getContext()); spinnerZujian.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { selectedZujian = (Zujian) parent.getItemAtPosition(position); setupBancaiSpinner(selectedChanpin, selectedZujian); } @Override public void onNothingSelected(AdapterView<?> parent) {} }); } /** * 板材刷新 * @param chanpin * @param zujian */ private void setupBancaiSpinner(Chanpin chanpin, Zujian zujian) { // 获取该组件关联的板材 List<Bancai> bancais = new ArrayList<>(); for (Chanpin_Zujian cz : chanpin.getChanpinZujian()) { if (cz.getZujian().getId().equals(zujian.getId())) { bancais.add(cz.getBancai()); } } Adapter.setupBancaiSpinners(spinnerBancai,bancais,getContext()); spinnerBancai.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { selectedBancai = (Bancai) parent.getItemAtPosition(position); } @Override public void onNothingSelected(AdapterView<?> parent) {} }); } // ... addInventoryRecord和createRecord方法保持不变 ... private void addInventoryRecord() { // 验证必填项 if (selectedDingdan == null || selectedChanpin == null || selectedZujian == null || selectedBancai == null) { Toast.makeText(getContext(), "请选择订单、产品、组件和板材", Toast.LENGTH_SHORT).show(); return; } String shuliangStr = etShuliang.getText().toString().trim(); if (shuliangStr.isEmpty()) { Toast.makeText(getContext(), "请输入数量", Toast.LENGTH_SHORT).show(); return; } // 解析数量 int shuliang; try { shuliang = Integer.parseInt(shuliangStr); } catch (NumberFormatException e) { Toast.makeText(getContext(), "请输入有效的数量", Toast.LENGTH_SHORT).show(); return; } // 确定操作类型（进货或消耗） boolean isJinhuo = rgType.getCheckedRadioButtonId() == R.id.rb_jinhuo; // 实际开发中应从登录信息获取当前用户 User currentUser = new User(1, "当前用户", "user", "password",1); // 创建记录 createRecord(selectedDingdan, selectedChanpin, selectedZujian, selectedBancai, shuliang, isJinhuo, currentUser); Toast.makeText(getContext(), "记录添加成功", Toast.LENGTH_SHORT).show(); etShuliang.setText(""); // 清空输入框 } private void createRecord(Dingdan dingdan, Chanpin chanpin, Zujian zujian, Bancai bancai, int shuliang, boolean isJinhuo, User user) { if (isJinhuo) { // 创建进货记录 Jinhuo jinhuo = new Jinhuo(); jinhuo.setId(Data.jinhuoList.size() + 1); jinhuo.setDingdan(dingdan); jinhuo.setChanpin(chanpin); jinhuo.setZujian(zujian); jinhuo.setBancai(bancai); jinhuo.setShuliang(shuliang); jinhuo.setDate(new Date()); jinhuo.setUser(user); Data.jinhuoList.add(jinhuo); } else { // 消耗数量转为负数 shuliang = -shuliang; } // 更新库存 updateKucun(bancai, shuliang); } private void updateKucun(Bancai bancai, int changeAmount) { // 查找现有库存记录 for (Kucun k : Data.kucuns) { if (k.getBancai().getId().equals(bancai.getId())) { k.setShuliang(k.getShuliang() + changeAmount); return; } } // 如果没有找到库存记录，创建新的 Kucun newKucun = new Kucun(); newKucun.setId(Data.kucuns.size() + 1); newKucun.setBancai(bancai); newKucun.setShuliang(Math.max(changeAmount, 0)); // 确保不为负 Data.kucuns.add(newKucun); } // 新建订单方法 private void createNewDingdan() { showNewDingdanDialog(); } /** * 向订单添加产品 * @param chanpin */ private void addChanpinToDingdan(Chanpin chanpin) { if (selectedDingdan == null||chanpin==null) { Toast.makeText(getContext(), "请先选择订单", Toast.LENGTH_SHORT).show(); return; } Log.d(TAG, "addChanpinToDingdan: "); // 检查产品是否已在订单中 for (Dingdan_Chanpin dc : selectedDingdan.getDingdanChanpin()) { if (dc.getChanpin().getId().equals(chanpin.getId())) { Toast.makeText(getContext(), "该产品已添加到订单", Toast.LENGTH_SHORT).show(); return; } } // 添加到当前订单的产品列表 Dingdan_Chanpin dc = new Dingdan_Chanpin(); //dc.setId(selectedDingdan.getDingdanChanpin().size() + 1); dc.setChanpin(chanpin); dc.setDingdan(selectedDingdan); selectedDingdan.getDingdanChanpin().add(dc); // 刷新产品下拉框 setupChanpinSpinner(selectedDingdan); // 选中新添加的产品 spinnerChanpin.setSelection(selectedDingdan.getDingdanChanpin().size() - 1); Toast.makeText(getContext(), "产品添加成功", Toast.LENGTH_SHORT).show(); } // 为当前产品添加组件 private void addZujianToChanpin() { if (selectedChanpin == null) { Toast.makeText(getContext(), "请先选择产品", Toast.LENGTH_SHORT).show(); return; } // // 创建新组件（示例） // Zujian newZujian = new Zujian(); // newZujian.setId( (Data.zujians.size() + 1)); // newZujian.setName("新组件" + System.currentTimeMillis()); // // // 添加到全局列表 // Data.zujians.add(newZujian); // // // 添加到当前产品的组件列表 // Chanpin_Zujian cz = new Chanpin_Zujian(); // cz.setId(selectedChanpin.getZujians().size() + 1); // cz.setZujian(newZujian); // cz.setChanpin(selectedChanpin); // selectedChanpin.getZujians().add(cz); // // // 刷新组件下拉框 // setupZujianSpinner(selectedChanpin); // spinnerZujian.setSelection(selectedChanpin.getZujians().size() - 1); // // Toast.makeText(getContext(), "组件添加成功", Toast.LENGTH_SHORT).show(); showCreateZujianDialog(); } // 新建订单对话框 /*** * 新建订单对话框 */ private void showNewDingdanDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("新建订单"); // 加载布局 View dialogView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_new_dingdan, null); EditText etOrderNumber = dialogView.findViewById(R.id.et_order_number); EditText etOrderDate = dialogView.findViewById(R.id.et_order_date); EditText etDeliveryDate = dialogView.findViewById(R.id.et_delivery_date); Button btnPickOrderDate = dialogView.findViewById(R.id.btn_pick_order_date); Button btnPickDeliveryDate = dialogView.findViewById(R.id.btn_pick_delivery_date); // 设置今日日期作为默认值 Date today = new Date(); etOrderDate.setText(dateFormat.format(today)); // 日期选择监听器 DatePickerDialog.OnDateSetListener orderDateListener = (view, year, month, dayOfMonth) -> { Calendar cal = Calendar.getInstance(); cal.set(year, month, dayOfMonth); etOrderDate.setText(dateFormat.format(cal.getTime())); }; DatePickerDialog.OnDateSetListener deliveryDateListener = (view, year, month, dayOfMonth) -> { Calendar cal = Calendar.getInstance(); cal.set(year, month, dayOfMonth); etDeliveryDate.setText(dateFormat.format(cal.getTime())); }; // 下单日期选择按钮 btnPickOrderDate.setOnClickListener(v -> { Calendar cal = Calendar.getInstance(); new DatePickerDialog(requireContext(), orderDateListener, cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH)) .show(); }); /** * / 出货日期选择按钮 */ btnPickDeliveryDate.setOnClickListener(v -> { Calendar cal = Calendar.getInstance(); new DatePickerDialog(requireContext(), deliveryDateListener, cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH)) .show(); }); builder.setView(dialogView); builder.setPositiveButton("创建", (dialog, which) -> { String orderNumber = etOrderNumber.getText().toString().trim(); String orderDateStr = etOrderDate.getText().toString(); String deliveryDateStr = etDeliveryDate.getText().toString(); for (Dingdan dingdan:Data.dingdans ) { if (dingdan.getNumber()==null||orderNumber==null){ Log.d(TAG, "showNewDingdanDialog: "); return; } if(dingdan.getNumber().equals(orderNumber)){ Toast.makeText(getContext(), "已有该订单号", Toast.LENGTH_SHORT).show(); return; } } // 验证输入 if (orderNumber.isEmpty()) { Toast.makeText(getContext(), "请输入订单号", Toast.LENGTH_SHORT).show(); return; } try { // 解析日期 Date orderDate = dateFormat.parse(orderDateStr); Date deliveryDate = deliveryDateStr.isEmpty() ? null : dateFormat.parse(deliveryDateStr); // 创建订单 createAndSaveDingdan(orderNumber, orderDate, deliveryDate); } catch (ParseException e) { Toast.makeText(getContext(), "日期格式错误", Toast.LENGTH_SHORT).show(); } }); builder.setNegativeButton("取消", null); builder.show(); } /** * 创建并保存订单 */ private void createAndSaveDingdan(String orderNumber, Date orderDate, Date deliveryDate) { Dingdan newDingdan = new Dingdan(); newDingdan.setId(Data.dingdans.size() + 1); newDingdan.setNumber(orderNumber); newDingdan.setXiadan(orderDate); newDingdan.setJiaohuo(deliveryDate); newDingdan.setDingdanChanpin(new ArrayList<>()); newDingdan.setDingdanChanpinZujian(new ArrayList<>()); Data.dingdans.add(newDingdan); // 刷新下拉框 setupDingdanSpinner(); spinnerDingdan.setSelection(Data.dingdans.size() - 1); Toast.makeText(getContext(), "新建订单成功", Toast.LENGTH_SHORT).show(); } /** * 显示添加产品弹窗 */ private void showAddChanpinDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("添加产品到订单"); // 加载布局 View dialogView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_add_chanpin, null); Spinner spinnerChanpinSelection = dialogView.findViewById(R.id.spinner_chanpin_selection); Button btnNewChanpin = dialogView.findViewById(R.id.btn_new_chanpin); // 设置产品下拉框 if (Data.chanpins == null || Data.chanpins.isEmpty()) { Toast.makeText(getContext(), "没有可用的产品，请先创建产品", Toast.LENGTH_SHORT).show(); return; } Adapter.setupChanpinSpinner(spinnerChanpinSelection, Data.chanpins, getContext()); // 新建产品按钮点击事件 btnNewChanpin.setOnClickListener(v -> { showNewChanpinDialog(() -> { // 新建产品后刷新下拉框 Adapter.setupChanpinSpinner(spinnerChanpinSelection, Data.chanpins, getContext()); // 默认选中新建的产品 spinnerChanpinSelection.setSelection(Data.chanpins.size() - 1); }); }); builder.setView(dialogView); builder.setPositiveButton("添加", (dialog, which) -> { Chanpin selectedChanpin = (Chanpin) spinnerChanpinSelection.getSelectedItem(); if (selectedChanpin == null) { Toast.makeText(getContext(), "请选择一个产品", Toast.LENGTH_SHORT).show(); return; } // 将选中的产品添加到当前订单 addChanpinToDingdan(selectedChanpin); }); builder.setNegativeButton("取消", null); builder.show(); } /** * 显示新建产品弹窗 * @param refreshCallback 新建后的回调，用于刷新产品列表 */ private void showNewChanpinDialog(Runnable refreshCallback) { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("新建产品"); View dialogView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_new_chanpin, null); EditText etChanpinName = dialogView.findViewById(R.id.et_chanpin_name); builder.setView(dialogView); builder.setPositiveButton("创建", (dialog, which) -> { String chanpinName = etChanpinName.getText().toString().trim(); if (chanpinName.isEmpty()) { Toast.makeText(getContext(), "请输入产品名称", Toast.LENGTH_SHORT).show(); return; } // 检查名称是否重复 for (Chanpin cp : Data.chanpins) { if (cp.getBianhao().equals(chanpinName)) { Toast.makeText(getContext(), "产品名称重复", Toast.LENGTH_SHORT).show(); return; } } // 创建新产品 Chanpin newChanpin = new Chanpin(); newChanpin.setId(Data.chanpins.size() + 1); newChanpin.setBianhao(chanpinName); newChanpin.setChanpinZujian(new ArrayList<>()); Data.chanpins.add(newChanpin); refreshCallback.run(); Toast.makeText(getContext(), "产品创建成功", Toast.LENGTH_SHORT).show(); }); builder.setNegativeButton("取消", null); builder.show(); } /** * 添加新组件 */ private void showCreateZujianDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("添加新组件"); // 创建自定义布局 View dialogView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_create_zujian_bancai, null); EditText etZujianName = dialogView.findViewById(R.id.et_zujian_name); Spinner spinnerbancai = dialogView.findViewById(R.id.spinner_bancai); SearchView searchBancai = dialogView.findViewById(R.id.search_bancai); Button btnAddBancai = dialogView.findViewById(R.id.btn_add_bancai); // 设置添加板材按钮点击事件 btnAddBancai.setOnClickListener(v -> { // 弹出添加板材的弹窗，并传入当前Spinner用于刷新 showCreateBancaiDialog(spinnerbancai); }); // 板材适配器 Adapter.setupBancaiSpinners(spinnerbancai,Data.bancais,getContext()); // 设置搜索功能 searchBancai.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String query) { return false; } @Override public boolean onQueryTextChange(String newText) { // 过滤板材列表 List<Bancai> filteredList = new ArrayList<>(); for (Bancai bancai : Data.bancais) { if ( bancai.TableText().toLowerCase().contains(newText.toLowerCase())) { filteredList.add(bancai); } } // 板材适配器 Adapter.setupBancaiSpinners(spinnerbancai,filteredList,getContext()); return true; } }); // 添加木皮预览标签 builder.setView(dialogView); builder.setPositiveButton("创建", (dialog, which) -> { // 获取用户输入 String zujianName = etZujianName.getText().toString().trim(); Bancai selectedBancai = (Bancai) spinnerbancai.getSelectedItem(); if (zujianName.isEmpty()) { Toast.makeText(getContext(), "请输入组件名称", Toast.LENGTH_SHORT).show(); return; } // 创建新组件 Zujian newZujian = new Zujian(); newZujian.setId(Data.zujians.size() + 1); newZujian.setName(zujianName); // 创建新板材 // 添加到全局列表 Data.zujians.add(newZujian); // 添加到当前产品的组件列表 Chanpin_Zujian cz = new Chanpin_Zujian(); cz.setZujian(newZujian); cz.setBancai(selectedBancai); // 关联新创建的板材 cz.setChanpin(selectedChanpin); selectedChanpin.getChanpinZujian().add(cz); // 刷新组件下拉框 setupZujianSpinner(selectedChanpin); spinnerZujian.setSelection(selectedChanpin.getChanpinZujian().size() - 1); Toast.makeText(getContext(), "组件和板材添加成功", Toast.LENGTH_SHORT).show(); }); builder.setNegativeButton("取消", null); builder.show(); } // 显示创建板材的弹窗 private void showCreateBancaiDialog(Spinner spinnerToRefresh) { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("添加新板材"); // 加载布局 View dialogView = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_create_bancai, null); Spinner spinnerCaizhi = dialogView.findViewById(R.id.spinner_caizhi); Spinner spinnerMupi1 = dialogView.findViewById(R.id.spinner_mupi1); Spinner spinnerMupi2 = dialogView.findViewById(R.id.spinner_mupi2); EditText TextInputEditTextHoudu=dialogView.findViewById(R.id.edittext_houdu); TextInputEditTextHoudu.setTextIsSelectable(true); // 绑定新建材质按钮 Button btnNewCaizhi = dialogView.findViewById(R.id.btn_new_caizhi); btnNewCaizhi.setOnClickListener(v -> { showNewOptionDialog("材质", option -> { // 避免重复添加 for (Caizhi caizhi : Data.caizhis) { if (caizhi.getName().equals(option)) return; } // 创建新材质 Caizhi newCaizhi = new Caizhi(); newCaizhi.setName(option); newCaizhi.setId(Data.caizhis.size() + 1); newCaizhi.setBancai(new ArrayList<>()); Data.caizhis.add(newCaizhi); // 刷新下拉框 Adapter.setupCaizhiSpinner(spinnerCaizhi, Data.caizhis, requireContext()); spinnerCaizhi.setSelection(Data.caizhis.size() - 1); }); }); // 绑定新建木皮按钮 Button btnNewMupi = dialogView.findViewById(R.id.btn_new_mupi); btnNewMupi.setOnClickListener(v -> { // 弹出新建木皮对话框 showNewMupiDialog(() -> { // 回调中刷新木皮下拉框 Adapter.setupMupiSpinner(spinnerMupi1, Data.mupis, requireContext()); Adapter.setupMupiSpinner(spinnerMupi2, Data.mupis, requireContext()); }); }); // 获取所有材质选项（从现有板材中提取） List<Caizhi> allCaizhi = Data.caizhis; List<Mupi> allMupi = Data.mupis; // 设置下拉框适配器 Adapter.setupCaizhiSpinner(spinnerCaizhi, allCaizhi, requireContext()); Adapter.setupMupiSpinner(spinnerMupi1, allMupi, requireContext()); Adapter.setupMupiSpinner(spinnerMupi2, allMupi, requireContext()); builder.setView(dialogView); builder.setPositiveButton("创建", (dialog, which) -> { Caizhi caizhi = (Caizhi)spinnerCaizhi.getSelectedItem() ; Mupi mupi1 = (Mupi)spinnerMupi1.getSelectedItem() ; Mupi mupi2 = (Mupi) spinnerMupi2.getSelectedItem() ; // 获取 TextInputEditText 的内容并进行校验 String houduText = TextInputEditTextHoudu.getText().toString().trim(); Double houdu = null; try { if (!houduText.isEmpty()) { // 检查输入是否为空 houdu = Double.valueOf(houduText); // 尝试将字符串转换为 Double } } catch (NumberFormatException e) { // 捕获转换异常并提示用户 Toast.makeText(getContext(), "厚度输入无效，请输入数字", Toast.LENGTH_SHORT).show(); return; } // 校验 caizhi 和 houdu 是否均有效 if (caizhi == null || houdu == null) { Toast.makeText(getContext(), "请选择材质并输入有效的厚度", Toast.LENGTH_SHORT).show(); return; } // 创建新板材 Bancai newBancai = new Bancai(); newBancai.setId(Data.bancais.size() + 1); newBancai.setCaizhi(caizhi); newBancai.setMupi1(mupi1); newBancai.setMupi2(mupi2); newBancai.setHoudu(houdu); caizhi.getBancai().add(newBancai); if (mupi1 != null) { mupi1.getBancais().add(newBancai); } if (mupi2 != null) { mupi2.getBancais().add(newBancai); } // 添加到全局列表 Data.bancais.add(newBancai); // 刷新Spinner（如果传入） if (spinnerToRefresh != null) { Adapter.setupBancaiSpinners(spinnerToRefresh, Data.bancais, getContext()); spinnerToRefresh.setSelection(Data.bancais.size() - 1); } Toast.makeText(getContext(), "板材添加成功", Toast.LENGTH_SHORT).show(); }); builder.setNegativeButton("取消", null); builder.show(); } // 显示新建选项的弹窗 /** * 显示新建选项的弹窗 * @param type 新建什么 * @param listener 反回 */ private void showNewOptionDialog(String type, OnOptionCreatedListener listener) { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("新建" + type); final EditText input = new EditText(requireContext()); input.setHint("请输入" + type); builder.setView(input); builder.setPositiveButton("确定", (dialog, which) -> { String option = input.getText().toString().trim(); if (!option.isEmpty()) { listener.onOptionCreated(option); } }); builder.setNegativeButton("取消", null); builder.show(); } // 回调接口 interface OnOptionCreatedListener { void onOptionCreated(String option); } // 新建木皮对话框 private void showNewMupiDialog(Runnable refreshCallback) { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("新建木皮"); View view = LayoutInflater.from(requireContext()).inflate(R.layout.dialog_new_mupi, null); EditText etName = view.findViewById(R.id.et_mupi_name); RadioGroup rgFinish = view.findViewById(R.id.rg_finish); builder.setView(view); builder.setPositiveButton("创建", (dialog, which) -> { String name = etName.getText().toString().trim(); if (name.isEmpty()) { Toast.makeText(getContext(), "请输入木皮名称", Toast.LENGTH_SHORT).show(); return; } // 避免重复添加 for (Mupi m : Data.mupis) { if (m.getName().equals(name)) return; } // 创建木皮对象 Mupi newMupi = new Mupi(); newMupi.setId(Data.mupis.size() + 1); newMupi.setName(name); newMupi.setYou(rgFinish.getCheckedRadioButtonId() == R.id.rb_painted); newMupi.setBancais(new ArrayList<>()); Data.mupis.add(newMupi); refreshCallback.run(); }); builder.setNegativeButton("取消", null); builder.show(); } }<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:padding="16dp"> <!-- 板材选择标题 --> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="组件选择" android:textStyle="bold" android:layout_marginTop="8dp"/> <!-- 板材选择区 --> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <!-- 组件名称输入 --> <Spinner android:id="@+id/et_zujian_name" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:padding="8dp"/> <!-- 添加板材按钮 --> <Button android:id="@+id/btn_add_zujian" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="+" android:layout_marginLeft="8dp"/> </LinearLayout> <!-- 板材搜索框 --> <SearchView android:id="@+id/search_bancai" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="16dp" android:queryHint="搜索板材..." android:iconifiedByDefault="false" android:layout_marginBottom="8dp"/> <!-- 板材选择标题 --> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="板材选择" android:textStyle="bold" android:layout_marginTop="8dp"/> <!-- 板材选择区 --> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <Spinner android:id="@+id/spinner_bancai" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:padding="8dp"/> <!-- 添加板材按钮 --> <Button android:id="@+id/btn_add_bancai" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="+" android:layout_marginLeft="8dp"/> </LinearLayout> </LinearLayout><?xml version="1.0" encoding="utf-8"?> <ScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:fillViewport="true"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:padding="16dp"> <!-- 订单选择 --> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="选择订单" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:weightSum="4"> <Spinner android:id="@+id/spinner_dingdan" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="3" android:prompt="@string/select_dingdan" /> <Button android:id="@+id/btn_new_dingdan" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="新建订单" /> </LinearLayout> <!-- 产品选择 --> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="选择产品" android:layout_marginTop="16dp"/> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:weightSum="4"> <Spinner android:id="@+id/spinner_chanpin" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="3" android:prompt="@string/select_chanpin" /> <Button android:id="@+id/btn_add_chanpin" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="添加产品" /> </LinearLayout> <!-- 组件选择 --> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="选择组件" android:layout_marginTop="16dp"/> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:weightSum="4"> <Spinner android:id="@+id/spinner_zujian" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="3" android:prompt="@string/select_zujian" /> <Button android:id="@+id/btn_add_zujian" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="添加组件" /> </LinearLayout> <!-- 板材选择 --> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="选择板材" android:layout_marginTop="16dp"/> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:weightSum="4"> <Spinner android:id="@+id/spinner_bancai" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="3" android:prompt="@string/select_bancai" /> </LinearLayout> <!-- 数量输入 --> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="数量" android:layout_marginTop="16dp"/> <EditText android:id="@+id/et_shuliang" android:layout_width="match_parent" android:layout_height="wrap_content" android:inputType="number" /> <!-- 类型选择 --> <RadioGroup android:id="@+id/rg_type" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="16dp" android:orientation="horizontal"> <RadioButton android:id="@+id/rb_jinhuo" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="进货" android:checked="true"/> <RadioButton android:id="@+id/rb_xiaohao" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="消耗" /> </RadioGroup> <!-- 提交按钮 --> <Button android:id="@+id/btn_submit" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="24dp" android:text="提交" /> </LinearLayout> </ScrollView>E FATAL EXCEPTION: main Process: com.example.kucun2, PID: 15672 java.lang.ClassCastException: androidx.appcompat.widget.AppCompatSpinner cannot be cast to android.widget.EditText at com.example.kucun2.ui.jinhuo.AddInventoryFragment.showCreateZujianDialog(AddInventoryFragment.java:565) at com.example.kucun2.ui.jinhuo.AddInventoryFragment.addZujianToChanpin(AddInventoryFragment.java:344) at com.example.kucun2.ui.jinhuo.AddInventoryFragment.lambda$onCreateView$2(AddInventoryFragment.java:90) at com.example.kucun2.ui.jinhuo.AddInventoryFragment.$r8$lambda$g7ZiJT_Sfp7Zl8Vt7clUdS_KcN8(Unknown Source:0) at com.example.kucun2.ui.jinhuo.AddInventoryFragment$$ExternalSyntheticLambda2.onClick(D8$$SyntheticClass:0) at android.view.View.performClick(View.java:8166) at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1218) at android.view.View.performClickInternal(View.java:8143) at android.view.View.-$$Nest$mperformClickInternal(Unknown Source:0) at android.view.View$PerformClick.run(View.java:32198)
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