setLayoutParams

在Android开发中,动态地通过setLayoutParams改变视图的宽度和高度是常见操作。本文探讨如何在代码中正确使用setLayoutParams,解决遇到的问题,强调需要使用视图所在父布局的LayoutParams类型进行设置,例如在LinearLayout中调整子视图尺寸的方法。

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给布局设置动态宽高是很常见的需求,当需要在代码中动态设置宽高时 我们需要用到 setLayoutParams

然而 当我们需要设置的时候 遇到这样一个问题 就是:

FrameLayout.LayoutParams layoutParams=
        new FrameLayout.LayoutParams(width/3, LinearLayout.LayoutParams.WRAP_CONTENT);
LinearLayout.LayoutParams linearLayout=
        new LinearLayout.LayoutParams(width/3, LinearLayout.LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams relativeLayout=
        new RelativeLayout.LayoutParams(width/3, LinearLayout.LayoutParams.WRAP_CONTENT);
ViewGroup.LayoutParams viewGroup=
        new ViewGroup.LayoutParams(width/3, LinearLayout.LayoutParams.WRAP_CONTENT);
有这么多的LayoutParams 我们到底用哪个呢  

后来反复学习我发现 

要用到你需要设置的view的父控件的LayoutParams 

比如 要设置的view放在linearlayout里面 那么就用

LinearLayout.LayoutParams linearLayout=
        new LinearLayout.LayoutParams(width/3, LinearLayout.LayoutParams.WRAP_CONTENT);
 按照这样的规则去设置LayoutParams  




package com.example.kucun2.ui.dingdan; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; import android.animation.ObjectAnimator; import android.animation.ValueAnimator; import android.app.AlertDialog; import android.graphics.Color; import android.graphics.Typeface; import android.os.Bundle; import android.util.TypedValue; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.ViewTreeObserver; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.FrameLayout; import android.widget.HorizontalScrollView; import android.widget.PopupMenu; import android.widget.SearchView; import android.widget.Spinner; import android.widget.TableLayout; import android.widget.TableRow; import android.widget.TextView; import android.widget.Toast; import androidx.core.content.ContextCompat; import androidx.fragment.app.Fragment; import com.example.kucun2.MainActivity; import com.example.kucun2.R; import com.example.kucun2.View.HorizontalScrollTextView; import com.example.kucun2.entity.Bancai; import com.example.kucun2.entity.Chanpin; import com.example.kucun2.entity.Chanpin_Zujian; import com.example.kucun2.entity.Dingdan; import com.example.kucun2.entity.Dingdan_chanpin_zujian; import com.example.kucun2.entity.Dingdan_Chanpin; import com.example.kucun2.entity.Zujian; import com.example.kucun2.entity.data.Data; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; public class OrderDisplayFragment extends Fragment { // 视图组件 private TableLayout table; private HorizontalScrollView horizontalScrollView; // private View scrollIndicator; private SearchView searchView; private Spinner columnSelector; private View rootView; // 数据管理 private List<Object[]> allTableRowsData = new ArrayList<>(); private List<Object[]> filteredTableRowsData = new ArrayList<>(); private boolean isDataLoaded = false; // 排序状态 private int currentSortColumn = -1; private boolean sortAscending = true; // // 滚动指示器动画 // private ValueAnimator scrollIndicatorAnimator; // private boolean isIndicatorVisible = false; // // // 滚动监听器 // private final ViewTreeObserver.OnScrollChangedListener scrollListener = // this::handleScrollChanged; //=== 生命周期方法 ===// @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { rootView = inflater.inflate(R.layout.fragment_order_display, container, false); initViews(); initColumnSelector(); setupSearchFunctionality(); // setupScrollListener(); // 数据加载逻辑 if (Data.dingdans.isEmpty()) { showLoadingIndicator(); setupDataLoadListener(); } else { fillTableData(); isDataLoaded = true; } return rootView; } @Override public void onDestroyView() { super.onDestroyView(); // 清理资源防止内存泄漏 if (horizontalScrollView != null) { ViewTreeObserver observer = horizontalScrollView.getViewTreeObserver(); if (observer.isAlive()) { observer.removeOnScrollChangedListener(scrollListener); } } // scrollIndicator = null; horizontalScrollView = null; table = null; rootView = null; } //=== 初始化方法 ===// private void initViews() { table = rootView.findViewById(R.id.orderTable); horizontalScrollView = rootView.findViewById(R.id.horizontalScrollContainer); // scrollIndicator = rootView.findViewById(R.id.scroll_indicator); searchView = rootView.findViewById(R.id.search_view); columnSelector = rootView.findViewById(R.id.column_selector); addTableHeader(table); // 添加表头 } /** * 初始化列选择器(用于搜索过滤) */ private void initColumnSelector() { ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource( requireContext(), R.array.table_headers, android.R.layout.simple_spinner_item ); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); columnSelector.setAdapter(adapter); columnSelector.setSelection(0); columnSelector.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) { applySearchFilter(); } @Override public void onNothingSelected(AdapterView<?> parent) {} }); } /** * 设置搜索功能 */ private void setupSearchFunctionality() { searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String query) { applySearchFilter(); return true; } @Override public boolean onQueryTextChange(String newText) { applySearchFilter(); return true; } }); } // /** // * 设置滚动监听器(控制滚动指示器显示) // */ // private void setupScrollListener() { // horizontalScrollView.getViewTreeObserver().addOnScrollChangedListener(scrollListener); // } // 滚动变化处理 private void handleScrollChanged() { if (horizontalScrollView.getChildCount() == 0) return; View child = horizontalScrollView.getChildAt(0); int maxScroll = child.getWidth() - horizontalScrollView.getWidth(); int currentScroll = horizontalScrollView.getScrollX(); if (currentScroll > 0 && maxScroll > 0) { if (!isIndicatorVisible) showScrollIndicator(); updateScrollIndicatorPosition(currentScroll, maxScroll); } else { hideScrollIndicator(); } } //=== 数据加载方法 ===// /** * 填充表格数据(核心数据重组逻辑) * 建立订单->产品->组件->板材的四级关系映射 */ private void fillTableData() { // 1. 创建映射关系提查询效率 Map<Integer, List<Dingdan_Chanpin>> orderProductMap = new HashMap<>(); Map<Integer, List<Chanpin_Zujian>> productComponentMap = new HashMap<>(); Map<Integer, List<Dingdan_chanpin_zujian>> componentMaterialMap = new HashMap<>(); // 2. 构建映射关系 for (Dingdan_Chanpin op : Data.dingdan_chanpins) { if (op != null && op.getDingdan() != null) { orderProductMap.computeIfAbsent(op.getDingdan().getId(), k -> new ArrayList<>()).add(op); } } for (Chanpin_Zujian cz : Data.chanpin_zujians) { if (cz.getChanpin() != null) { productComponentMap.computeIfAbsent(cz.getChanpin().getId(), k -> new ArrayList<>()).add(cz); } } for (Dingdan_chanpin_zujian dm : Data.Dingdan_chanpin_zujians) { if (dm.getZujian() != null) { componentMaterialMap.computeIfAbsent(dm.getZujian().getId(), k -> new ArrayList<>()).add(dm); } } // 3. 重组数据 for (Dingdan order : Data.dingdans) { List<Dingdan_Chanpin> products = orderProductMap.get(order.getId()); if (products != null) { for (Dingdan_Chanpin op : products) { Chanpin product = op.getChanpin(); if (product == null) continue; List<Chanpin_Zujian> components = productComponentMap.get(product.getId()); if (components == null) continue; for (Chanpin_Zujian cz : components) { Zujian component = cz.getZujian(); if (component == null) continue; List<Dingdan_chanpin_zujian> materials = componentMaterialMap.get(component.getId()); if (materials == null) continue; for (Dingdan_chanpin_zujian dm : materials) { Object[] rowData = createRowData(order, product, op, cz, dm); allTableRowsData.add(rowData); filteredTableRowsData.add(rowData); } } } } } // 4. 初始排序 sortTableData(-1, true); } /** * 创建表格行数据对象 */ private Object[] createRowData(Dingdan order, Chanpin product, Dingdan_Chanpin dingdan_chanpin, Chanpin_Zujian component, Dingdan_chanpin_zujian material) { Bancai board = material.getBancai(); return new Object[]{ order.getNumber(), // 订单号 product.getBianhao(), // 产品编号 dingdan_chanpin.getShuliang(),// 产品数量 component.getZujian().getName(), // 组件名 board != null ? board.TableText() : "N/A", // 板材信息 Math.round(component.getOne_howmany()), // 板材/组件 material.getShuliang(), // 订购数量 "操作" // 操作按钮 }; } //=== 表格操作 ===// /** * 排序表格数据 * @param columnIndex 列索引(-1表示初始状态) * @param ascending 是否升序 */ private void sortTableData(int columnIndex, boolean ascending) { // 更新排序状态 if (columnIndex >= 0) { if (currentSortColumn == columnIndex) { sortAscending = !ascending; } else { currentSortColumn = columnIndex; sortAscending = true; } } // 创建自定义比较器 Comparator<Object[]> comparator = (row1, row2) -> { if (currentSortColumn < 0) return 0; Object val1 = row1[currentSortColumn]; Object val2 = row2[currentSortColumn]; // 处理空值 if (val1 == null && val2 == null) return 0; if (val1 == null) return -1; if (val2 == null) return 1; try { // 数值列比较 if (currentSortColumn == 2 || currentSortColumn == 5 || currentSortColumn == 6) { double num1 = Double.parseDouble(val1.toString()); double num2 = Double.parseDouble(val2.toString()); return sortAscending ? Double.compare(num1, num2) : Double.compare(num2, num1); } // 字符串列比较 else { String str1 = val1.toString().toLowerCase(); String str2 = val2.toString().toLowerCase(); return sortAscending ? str1.compareTo(str2) : str2.compareTo(str1); } } catch (NumberFormatException e) { // 数值解析失败时按字符串比较 String str1 = val1.toString().toLowerCase(); String str2 = val2.toString().toLowerCase(); return sortAscending ? str1.compareTo(str2) : str2.compareTo(str1); } }; // 执行排序或直接复制数据 if (columnIndex == -1) { filteredTableRowsData.clear(); filteredTableRowsData.addAll(allTableRowsData); } else { Collections.sort(filteredTableRowsData, comparator); } refreshTableWithData(filteredTableRowsData); } /** * 刷新表格显示 */ private void refreshTableWithData(Iterable<? extends Object[]> dataToShow) { removeAllRowsSafely(); // 清除旧行 int addedRows = 0; for (Object[] rowData : dataToShow) { addTableRow(rowData); // 添加新行 addedRows++; } if (addedRows == 0) { addEmptyTableRow(); // 空数据提示 } } /** * 添加表格行(动态创建视图) */ private void addTableRow(Object[] rowData) { TableRow row = new TableRow(requireContext()); TableLayout.LayoutParams rowParams = new TableLayout.LayoutParams( TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.WRAP_CONTENT ); row.setLayoutParams(rowParams); row.setMinimumHeight(dpToPx(36)); for (int i = 0; i < rowData.length; i++) { if (i == rowData.length - 1) { // 操作列 Button actionButton = new Button(requireContext()); actionButton.setText("操作"); actionButton.setTextSize(TypedValue.COMPLEX_UNIT_SP, 14); actionButton.setBackgroundResource(R.drawable.btn_selector); TableRow.LayoutParams btnParams = new TableRow.LayoutParams( 0, TableRow.LayoutParams.WRAP_CONTENT, 0.5f ); btnParams.setMargins(dpToPx(1), dpToPx(1), dpToPx(1), dpToPx(1)); actionButton.setLayoutParams(btnParams); actionButton.setOnClickListener(v -> handleRowAction(rowData, v)); row.addView(actionButton); } else { // 数据列 HorizontalScrollTextView textView = new HorizontalScrollTextView(requireContext()); textView.setText(String.valueOf(rowData[i])); textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 14); int padding = dpToPx(8); textView.setPadding(padding, padding/2, padding, padding); textView.setBackgroundResource(R.drawable.cell_border); TableRow.LayoutParams colParams = new TableRow.LayoutParams( 0, TableRow.LayoutParams.MATCH_PARENT, rowData[i].toString().length() > 10 ? 2.0f : 1.0f ); textView.setLayoutParams(colParams); row.addView(textView); } } table.addView(row); } //=== 用户交互处理 ===// /** * 处理行操作按钮点击 */ private void handleRowAction(Object[] rowData, View anchorButton) { PopupMenu popupMenu = new PopupMenu(requireContext(), anchorButton); popupMenu.getMenuInflater().inflate(R.menu.row_actions_menu, popupMenu.getMenu()); popupMenu.setGravity(Gravity.BOTTOM); popupMenu.setOnMenuItemClickListener(item -> { int itemId = item.getItemId(); if (itemId == R.id.action_view_details) { showDetailDialog(rowData[0].toString(), rowData[1].toString()); return true; } else if (itemId == R.id.action_edit) { editRowData(rowData); return true; } else if (itemId == R.id.action_delete) { deleteRowWithConfirm(rowData); return true; } return false; }); popupMenu.show(); } /** * 删除行数据(带确认对话框) */ private void deleteRowWithConfirm(Object[] rowData) { new AlertDialog.Builder(requireContext()) .setTitle("确认删除") .setMessage("确定要删除订单 " + rowData[0] + " 吗?") .setPositiveButton("删除", (dialog, which) -> deleteRow(rowData)) .setNegativeButton("取消", null) .show(); } /** * 实际删除逻辑 */ private void deleteRow(Object[] rowData) { // 从两个数据集中移除 allTableRowsData.removeIf(row -> Arrays.equals(row, rowData)); filteredTableRowsData.removeIf(row -> Arrays.equals(row, rowData)); refreshTableWithData(filteredTableRowsData); Toast.makeText(requireContext(), "已删除订单", Toast.LENGTH_SHORT).show(); } //=== 辅助方法 ===// /** * 应用搜索过滤 */ private void applySearchFilter() { String query = searchView.getQuery().toString().trim().toLowerCase(); int selectedColumn = columnSelector.getSelectedItemPosition(); filteredTableRowsData.clear(); if (query.isEmpty()) { filteredTableRowsData.addAll(allTableRowsData); } else { // 根据选择的列进行过滤 for (Object[] row : allTableRowsData) { // 全局搜索(所有列) if (selectedColumn == 0) { for (Object cell : row) { if (cell != null && cell.toString().toLowerCase().contains(query)) { filteredTableRowsData.add(row); break; } } } // 特定列搜索 else if (selectedColumn > 0 && selectedColumn <= row.length) { int colIndex = selectedColumn - 1; if (row[colIndex] != null && row[colIndex].toString().toLowerCase().contains(query)) { filteredTableRowsData.add(row); } } } } refreshTableWithData(filteredTableRowsData); } /** * 显示/隐藏滚动指示器 */ private void showScrollIndicator() { if (scrollIndicator == null) return; isIndicatorVisible = true; if (scrollIndicatorAnimator != null && scrollIndicatorAnimator.isRunning()) { scrollIndicatorAnimator.cancel(); } scrollIndicator.setVisibility(View.VISIBLE); scrollIndicator.setAlpha(0f); scrollIndicatorAnimator = ObjectAnimator.ofFloat(scrollIndicator, "alpha", 0f, 0.8f); scrollIndicatorAnimator.setDuration(300); scrollIndicatorAnimator.start(); } private void hideScrollIndicator() { if (scrollIndicator == null) return; isIndicatorVisible = false; if (scrollIndicatorAnimator != null && scrollIndicatorAnimator.isRunning()) { scrollIndicatorAnimator.cancel(); } scrollIndicatorAnimator = ObjectAnimator.ofFloat(scrollIndicator, "alpha", scrollIndicator.getAlpha(), 0f); scrollIndicatorAnimator.setDuration(300); scrollIndicatorAnimator.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { scrollIndicator.setVisibility(View.INVISIBLE); } }); scrollIndicatorAnimator.start(); } private void updateScrollIndicatorPosition(int currentScroll, int maxScroll) { if (scrollIndicator == null) return; FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) scrollIndicator.getLayoutParams(); float percentage = (float) currentScroll / maxScroll; int maxMargin = getResources().getDisplayMetrics().widthPixels - scrollIndicator.getWidth(); params.rightMargin = (int) (maxMargin * percentage); scrollIndicator.setLayoutParams(params); } /** * 添加表头 */ private void addTableHeader(TableLayout table) { TableRow headerRow = new TableRow(requireContext()); headerRow.setLayoutParams(new TableLayout.LayoutParams( TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.WRAP_CONTENT )); headerRow.setBackgroundColor(ContextCompat.getColor(requireContext(), R.color.purple_500)); String[] headers = getResources().getStringArray(R.array.table_headers); float[] weights = {1.0f, 1.0f, 1.0f, 1.0f, 2.0f, 1.0f, 1.0f}; for (int i = 0; i < headers.length; i++) { HorizontalScrollTextView headerView = new HorizontalScrollTextView(requireContext()); headerView.setText(headers[i]); headerView.setTextColor(Color.WHITE); headerView.setTypeface(null, Typeface.BOLD); headerView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16); headerView.setPadding(dpToPx(8), dpToPx(8), dpToPx(8), dpToPx(8)); TableRow.LayoutParams colParams = new TableRow.LayoutParams( 0, TableRow.LayoutParams.MATCH_PARENT, weights[i] ); headerView.setLayoutParams(colParams); final int columnIndex = i; headerView.setOnClickListener(v -> sortTableData(columnIndex, sortAscending)); headerRow.addView(headerView); } table.addView(headerRow); } /** * 安全移除所有行(保留表头) */ private void removeAllRowsSafely() { if (table.getChildCount() > 1) { for (int i = table.getChildCount() - 1; i >= 1; i--) { View child = table.getChildAt(i); if (child instanceof TableRow) { cleanupRowViews((TableRow) child); } table.removeViewAt(i); } } } private void cleanupRowViews(TableRow row) { for (int i = 0; i < row.getChildCount(); i++) { View view = row.getChildAt(i); if (view instanceof Button) { ((Button) view).setOnClickListener(null); } } } private void addEmptyTableRow() { TableRow row = new TableRow(requireContext()); TextView emptyView = new TextView(requireContext()); emptyView.setText("暂无数据"); emptyView.setGravity(Gravity.CENTER); emptyView.setLayoutParams(new TableRow.LayoutParams( TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT )); row.addView(emptyView); table.addView(row); } /** * 显示详情对话框 */ private void showDetailDialog(String orderNumber, String productId) { new AlertDialog.Builder(requireContext()) .setTitle("订单详情") .setMessage("订单号: " + orderNumber + "\n产品ID: " + productId) .setPositiveButton("确定", null) .show(); } /** * 编辑行数据 */ private void editRowData(Object[] rowData) { // 实际项目中应实现编辑表单 Toast.makeText(requireContext(), "编辑: " + rowData[0], Toast.LENGTH_SHORT).show(); } /** * 显示加载指示器 */ private void showLoadingIndicator() { // 实际项目中应显示进度条 Toast.makeText(requireContext(), "加载中...", Toast.LENGTH_SHORT).show(); } /** * 设置数据加载监听器 */ private void setupDataLoadListener() { if (getActivity() instanceof MainActivity) { ((MainActivity) getActivity()).setOnDataLoadListener(new MainActivity.OnDataLoadListener() { @Override public void onDataLoaded() { requireActivity().runOnUiThread(() -> { hideLoadingIndicator(); isDataLoaded = true; fillTableData(); }); } @Override public void onDataError() { requireActivity().runOnUiThread(() -> { hideLoadingIndicator(); Toast.makeText(getContext(), "数据加载失败", Toast.LENGTH_SHORT).show(); }); } }); } } private void hideLoadingIndicator() { // 实际项目中应隐藏进度条 } /** * dp转px工具方法 */ private int dpToPx(int dp) { return (int) TypedValue.applyDimension( TypedValue.COMPLEX_UNIT_DIP, dp, getResources().getDisplayMetrics() ); } }滚动指示器动画不要了 ,加入详细注释,
06-15
Process: com.example.kucun2, PID: 14726 java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. at android.view.ViewGroup.addViewInner(ViewGroup.java:5362) at android.view.ViewGroup.addView(ViewGroup.java:5176) at android.widget.TableLayout.addView(TableLayout.java:427) at android.view.ViewGroup.addView(ViewGroup.java:5116) at android.widget.TableLayout.addView(TableLayout.java:409) at android.view.ViewGroup.addView(ViewGroup.java:5088) at android.widget.TableLayout.addView(TableLayout.java:400) at com.example.kucun2.ui.dingdan.OrderDisplayFragment.addTableRow(OrderDisplayFragment.java:344) at com.example.kucun2.ui.dingdan.OrderDisplayFragment.refreshTableWithData(OrderDisplayFragment.java:665) at com.example.kucun2.ui.dingdan.OrderDisplayFragment.sortTableData(OrderDisplayFragment.java:259) at com.example.kucun2.ui.dingdan.OrderDisplayFragment.fillTableData(OrderDisplayFragment.java:198) at com.example.kucun2.ui.dingdan.OrderDisplayFragment.onCreateView(OrderDisplayFragment.java:138) at androidx.fragment.app.Fragment.performCreateView(Fragment.java:3114) at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:557) at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:272) at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1943) at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1845) at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManagepackage com.example.kucun2.ui.dingdan;//package com.example.kucun2; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; import android.animation.ObjectAnimator; import android.animation.ValueAnimator; import android.app.AlertDialog; import android.graphics.Color; import android.graphics.Typeface; import android.os.Bundle; import android.util.TypedValue; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.ViewTreeObserver; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.FrameLayout; import android.widget.HorizontalScrollView; import android.widget.LinearLayout; import android.widget.PopupMenu; import android.widget.SearchView; import android.widget.Spinner; import android.widget.TableLayout; import android.widget.TableRow; import android.widget.Toast; import androidx.core.content.ContextCompat; import androidx.fragment.app.Fragment; import com.example.kucun2.R; import com.example.kucun2.View.HorizontalScrollTextView; import com.example.kucun2.entity.Bancai; import com.example.kucun2.entity.Chanpin; import com.example.kucun2.entity.Chanpin_Zujian; import com.example.kucun2.entity.Dingdan; import com.example.kucun2.entity.Dingdan_Bancai; import com.example.kucun2.entity.Dingdan_Chanpin; import com.example.kucun2.entity.data.Data; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Comparator; import java.util.Iterator; import java.util.List; public class OrderDisplayFragment extends Fragment { private TableLayout table; private HorizontalScrollView horizontalScrollView; private ValueAnimator scrollIndicatorAnimator; private boolean isIndicatorVisible = false; // 添加排序相关的成员变量 private int currentSortColumn = -1; private boolean sortAscending = true; private List<Object[]> allTableRowsData = new ArrayList<>(); // 添加搜索相关成员变量 private SearchView searchView; private Spinner columnSelector; private List<Object[]> filteredTableRowsData = new ArrayList<>(); /** *加载初始化 * @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(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_order_display, container, false); table = view.findViewById(R.id.orderTable); horizontalScrollView = view.findViewById(R.id.horizontalScrollContainer); View scrollIndicator = view.findViewById(R.id.scroll_indicator); // 获取搜索控件 searchView = view.findViewById(R.id.search_view); columnSelector = view.findViewById(R.id.column_selector); // 初始化表头选择器 initColumnSelector(); // 设置搜索监听 searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String query) { applySearchFilter(); return true; } @Override public boolean onQueryTextChange(String newText) { applySearchFilter(); return true; } }); LinearLayout fixedSearchBar = view.findViewById(R.id.fixedSearchBar); View placeholder = view.findViewById(R.id.search_bar_placeholder); // 添加全局布局监听器以获取正确的搜索框度 fixedSearchBar.getViewTreeObserver().addOnGlobalLayoutListener( new ViewTreeObserver.OnGlobalLayoutListener() { @Override public void onGlobalLayout() { // 获取搜索框的实际度 int searchBarHeight = fixedSearchBar.getHeight(); // 设置占位视图的度 ViewGroup.LayoutParams params = placeholder.getLayoutParams(); params.height = searchBarHeight; placeholder.setLayoutParams(params); // 确保仅运行一次 fixedSearchBar.getViewTreeObserver().removeOnGlobalLayoutListener(this); } } ); // 添加表头 addTableHeader(table); // 填充表格数据 fillTableData(); // 添加滚动监听 horizontalScrollView.getViewTreeObserver().addOnScrollChangedListener(() -> { int maxScroll = horizontalScrollView.getChildAt(0).getWidth() - horizontalScrollView.getWidth(); int currentScroll = horizontalScrollView.getScrollX(); if (currentScroll > 0 && maxScroll > 0) { if (!isIndicatorVisible) { showScrollIndicator(); } // 更新滚动指示器位置 updateScrollIndicatorPosition(currentScroll, maxScroll); } else { hideScrollIndicator(); } }); return view; } /** * 获取数据 */ private void fillTableData() { List<Dingdan> orders = Data.dingdans; List<Dingdan_Chanpin> orderProducts = Data.dingdanChanpins; List<Dingdan_Bancai> orderMaterials = Data.dingdanBancais; for (Dingdan order : orders) { for (Dingdan_Chanpin orderProduct : orderProducts) { if (orderProduct.getDingdan().getId().equals(order.getId())) { Chanpin product = orderProduct.getChanpin(); for (Chanpin_Zujian component : product.getZujians()) { for (Dingdan_Bancai material : orderMaterials) { // 创建行数据但不立即添加到表格 Object[] rowData = createRowData( order, product, component, material ); allTableRowsData.add(rowData); filteredTableRowsData.add(rowData); // if (material.getZujian() != null && // material.getZujian().getId().equals(component.getId())) { // // addTableRow(createRowData( // order, product, component, material // )); // } } } } } } // 初始排序 sortTableData(-1, true); // 初始显示原始顺序 } /** * 排序表格数据并刷新显示 * @param columnIndex 要排序的列索引 * @param ascending 是否升序排列 */ private void sortTableData(int columnIndex, boolean ascending) { // 更新排序状态 if (columnIndex >= 0) { if (currentSortColumn == columnIndex) { // 相同列点击时切换排序方向 sortAscending = !ascending; } else { currentSortColumn = columnIndex; sortAscending = true; // 新列默认升序 } } // 创建排序比较器 Comparator<Object[]> comparator = (row1, row2) -> { if (currentSortColumn < 0) { return 0; // 返回0表示相等,保持原顺序 } Object value1 = row1[currentSortColumn]; Object value2 = row2[currentSortColumn]; if (value1 == null && value2 == null) return 0; if (value1 == null) return -1; if (value2 == null) return 1; // 根据不同列数据类型定制比较规则 try { // 数值列:2(数量), 5(板材/组件), 6(订购数量) if (currentSortColumn == 2 || currentSortColumn == 5 || currentSortColumn == 6) { double d1 = Double.parseDouble(value1.toString()); double d2 = Double.parseDouble(value2.toString()); return sortAscending ? Double.compare(d1, d2) : Double.compare(d2, d1); } // 其他列按字符串排序 else { String s1 = value1.toString().toLowerCase(); String s2 = value2.toString().toLowerCase(); return sortAscending ? s1.compareTo(s2) : s2.compareTo(s1); } } catch (NumberFormatException e) { // 解析失败时按字符串比较 String s1 = value1.toString().toLowerCase(); String s2 = value2.toString().toLowerCase(); return sortAscending ? s1.compareTo(s2) : s2.compareTo(s1); } }; // 刷新表格显示 Collections.sort(filteredTableRowsData, comparator); // 刷新显示 refreshTableWithData(filteredTableRowsData); } /** * 表格数据动态添加 * @param rowData */ private void addTableRow(Object[] rowData) { TableRow row = new TableRow(requireContext()); TableLayout.LayoutParams rowParams = new TableLayout.LayoutParams( TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.WRAP_CONTENT ); row.setLayoutParams(rowParams); row.setMinimumHeight(dpToPx(36)); for (int i = 0; i < rowData.length; i++) { final Object data = rowData[i]; // 判断是否为操作列(最后一列) if (i == rowData.length - 1) { // 创建操作按钮 Button actionButton = new Button(requireContext()); actionButton.setText("操作"); actionButton.setTextSize(TypedValue.COMPLEX_UNIT_SP, 14); actionButton.setBackgroundResource(R.drawable.btn_selector); // 自定义按钮样式 // 设置按钮点击监听器 actionButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { handleRowAction(rowData); } }); // 设置按钮布局参数 TableRow.LayoutParams btnParams = new TableRow.LayoutParams( 0, // 度由权重控制 TableRow.LayoutParams.WRAP_CONTENT, 0.5f ); btnParams.weight = 0.5f; int margin = dpToPx(4); btnParams.setMargins(margin, margin, margin, margin); actionButton.setLayoutParams(btnParams); row.addView(actionButton); } else { // 正常文本列的代码(保持原逻辑) HorizontalScrollTextView textView = new HorizontalScrollTextView(requireContext()); textView.setText(String.valueOf(data)); textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 14); int padding = dpToPx(8); textView.setPadding(padding, padding / 2, padding, padding / 2); textView.setMinWidth(dpToPx(50)); TableRow.LayoutParams colParams=null; // 设置背景边框 textView.setBackgroundResource(R.drawable.cell_border); if ( data.toString().length() > 10){ colParams = new TableRow.LayoutParams( 0, // 度将由权重控制 TableRow.LayoutParams.MATCH_PARENT, 2.0f ); colParams.weight = 2; }else{ colParams = new TableRow.LayoutParams( 0, // 度将由权重控制 TableRow.LayoutParams.MATCH_PARENT, 1.0f ); colParams.weight = 1; } textView.setLayoutParams(colParams); row.addView(textView); } table.addView(row); } } // 动态添加表头 (使用自定义TextView) private void addTableHeader(TableLayout table) { TableRow headerRow = new TableRow(requireContext()); headerRow.setLayoutParams(new TableLayout.LayoutParams( TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.WRAP_CONTENT )); // 设置行背景颜色 headerRow.setBackgroundColor(ContextCompat.getColor(requireContext(), R.color.purple_500)); // 定义表头 // 更新表头数组(添加操作列) String[] headers = getResources().getStringArray(R.array.table_headers); List<String> headerList = new ArrayList<>(Arrays.asList(headers)); headerList.add("操作"); // 添加操作列标题 headers = headerList.toArray(new String[0]); // 更新权重数组(添加操作列权重) float[] weights = {1.0f, 1.0f, 1.0f, 1.0f, 2.0f, 1.0f, 1.0f, 0.5f}; // 新增操作列权重0.5 // 更新优先级数组(添加操作列优先级) boolean[] priority = {false, false, false, false, true, false, false, false}; for (int i = 0; i < headers.length; i++) { HorizontalScrollTextView headerView = new HorizontalScrollTextView(requireContext()); headerView.setText(headers[i]); headerView.setTextColor(Color.WHITE); headerView.setTypeface(null, Typeface.BOLD); headerView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16); headerView.setPadding(dpToPx(8), dpToPx(8), dpToPx(8), dpToPx(8)); // 为优先级的列设置最小度 if (priority[i]) { headerView.setMinWidth(dpToPx(200)); } // 设置布局参数 TableRow.LayoutParams colParams = new TableRow.LayoutParams( priority[i] ? TableRow.LayoutParams.WRAP_CONTENT : 0, TableRow.LayoutParams.MATCH_PARENT, priority[i] ? 0 : weights[i] // 优先级列不使用权重 ); headerView.setLayoutParams(colParams); final int columnIndex = i; headerView.setOnClickListener(v -> { // 排序并刷新表格 sortTableData(columnIndex, sortAscending); // 更新排序指示器(可选) showSortIndicator(headerView); }); headerRow.addView(headerView); } table.addView(headerRow); } // 添加排序指示器(可选) private void showSortIndicator(View header) { // 实现:在表头右侧添加↑或↓指示符 // 实现逻辑根据设计需求 // header.setTooltipText(new ); } /** * */ private void showScrollIndicator() { isIndicatorVisible = true; View indicator = getView().findViewById(R.id.scroll_indicator); if (scrollIndicatorAnimator != null && scrollIndicatorAnimator.isRunning()) { scrollIndicatorAnimator.cancel(); } indicator.setVisibility(View.VISIBLE); indicator.setAlpha(0f); scrollIndicatorAnimator = ObjectAnimator.ofFloat(indicator, "alpha", 0f, 0.8f); scrollIndicatorAnimator.setDuration(300); scrollIndicatorAnimator.start(); } /**+ * */ private void hideScrollIndicator() { isIndicatorVisible = false; View indicator = getView().findViewById(R.id.scroll_indicator); if (scrollIndicatorAnimator != null && scrollIndicatorAnimator.isRunning()) { scrollIndicatorAnimator.cancel(); } scrollIndicatorAnimator = ObjectAnimator.ofFloat(indicator, "alpha", indicator.getAlpha(), 0f); scrollIndicatorAnimator.setDuration(300); scrollIndicatorAnimator.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { indicator.setVisibility(View.INVISIBLE); } }); scrollIndicatorAnimator.start(); } /** * * @param currentScroll * @param maxScroll */ private void updateScrollIndicatorPosition(int currentScroll, int maxScroll) { View indicator = getView().findViewById(R.id.scroll_indicator); FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) indicator.getLayoutParams(); // 计算指示器位置(0-100%) float percentage = (float) currentScroll / maxScroll; int maxMargin = getResources().getDisplayMetrics().widthPixels - indicator.getWidth(); // 设置右边距(控制位置) params.rightMargin = (int) (maxMargin * percentage); indicator.setLayoutParams(params); } // 处理行操作的方法 private void handleRowAction(Object[] rowData) { // 从行数据中提取关键信息 String orderNumber = (String) rowData[0]; // 订单号 String productId = (String) rowData[1]; // 产品ID String componentName = (String) rowData[3]; // 组件名称 double materialQuantity = (double) rowData[6]; // 订购数量 // 创建操作菜单 PopupMenu popupMenu = new PopupMenu(requireContext(), requireView()); popupMenu.getMenuInflater().inflate(R.menu.row_actions_menu, popupMenu.getMenu()); popupMenu.setOnMenuItemClickListener(item -> { int itemId = item.getItemId(); if (itemId == R.id.action_view_details) { // 查看详情操作 showDetailDialog(orderNumber, productId); return true; } else if (itemId == R.id.action_edit) { // 编辑操作 editRowData(rowData); return true; } else if (itemId == R.id.action_delete) { // 删除操作 deleteRowWithConfirm(rowData); return true; } return false; }); popupMenu.show(); } // 查看详情对话框 private void showDetailDialog(String orderNumber, String productId) { AlertDialog.Builder builder = new AlertDialog.Builder(requireContext()); builder.setTitle("订单详情") .setMessage("订单号: " + orderNumber + "\n产品ID: " + productId) .setPositiveButton("确定", null) .show(); } // 编辑行数据 private void editRowData(Object[] rowData) { // 实现编辑逻辑 // 这里创建包含表单的对话框 Toast.makeText(requireContext(), "编辑操作: " + rowData[0], Toast.LENGTH_SHORT).show(); } // 带确认的删除操作 private void deleteRowWithConfirm(Object[] rowData) { new AlertDialog.Builder(requireContext()) .setTitle("确认删除") .setMessage("确定要删除订单 " + rowData[0] + " 吗?") .setPositiveButton("删除", (dialog, which) -> { // 实际删除逻辑 deleteRow(rowData); }) .setNegativeButton("取消", null) .show(); } // 实际删除行数据 private void deleteRow(Object[] rowData) { // 1. 从allTableRowsData中移除对应行 for (Iterator<Object[]> iterator = allTableRowsData.iterator(); iterator.hasNext();) { Object[] row = iterator.next(); if (Arrays.equals(row, rowData)) { iterator.remove(); break; } } // 2. 从filteredTableRowsData中移除 filteredTableRowsData.removeIf(row -> Arrays.equals(row, rowData)); // 3. 刷新表格 refreshTableWithData(filteredTableRowsData); Toast.makeText(requireContext(), "已删除订单", Toast.LENGTH_SHORT).show(); } // DP转PX工具方法 private int dpToPx(int dp) { return (int) TypedValue.applyDimension( TypedValue.COMPLEX_UNIT_DIP, dp, getResources().getDisplayMetrics() ); } /** * 数据组合 * @param order * @param product * @param component * @param material * @return */ private Object[] createRowData(Dingdan order, Chanpin product, Chanpin_Zujian component, Dingdan_Bancai material) { Bancai board = material.getBancai(); String boardInfo = board.TableText(); ; return new Object[] { order.getNumber(), // 订单号 product.getId(), // 产品编号 "1", // 产品数量 (根据需求调整) component.getZujian().getName(), // 组件名 boardInfo, // 板材信息 Math.round(component.getOne_several()), // 板材/组件 material.getShuliang() , // 订购数量 "操作" }; } // 初始化列选择器 private void initColumnSelector() { ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource( requireContext(), R.array.table_headers, android.R.layout.simple_spinner_item ); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); columnSelector.setAdapter(adapter); // 添加"所有列"选项 columnSelector.setSelection(0); // 默认选择第一个选项(所有列) // 列选择变化监听 columnSelector.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { applySearchFilter(); } @Override public void onNothingSelected(AdapterView<?> parent) {} }); } // 应用搜索过滤 private void applySearchFilter() { String query = searchView.getQuery().toString().trim().toLowerCase(); int selectedColumn = columnSelector.getSelectedItemPosition(); filteredTableRowsData.clear(); if (query.isEmpty()) { // 没有搜索词,显示所有数据 filteredTableRowsData.addAll(allTableRowsData); } else { // 根据选择的列进行过滤 for (Object[] row : allTableRowsData) { // 如果选择"所有列"(位置0),检查所有列 if (selectedColumn == 0) { for (Object cell : row) { if (cell != null && cell.toString().toLowerCase().contains(query)) { filteredTableRowsData.add(row); break; } } } // 检查特定列 else if (selectedColumn >= 1 && selectedColumn <= row.length) { int columnIndex = selectedColumn - 1; // 调整索引(0=所有列,1=第一列) if (row[columnIndex] != null && row[columnIndex].toString().toLowerCase().contains(query)) { filteredTableRowsData.add(row); } } } } // 刷新表格显示 refreshTableWithData(filteredTableRowsData); } /** * 刷新表格显示 */ private void refreshTableWithData(Iterable<? extends Object[]> dataToShow) { // 移除除表头外的所有行 removeAllRowsSafely(); // 添加过滤后的行 for (Object[] rowData : dataToShow) { addTableRow(rowData); } } private void removeAllRowsSafely() { // 移除除表头外的所有行(如果有表头) if (table.getChildCount() > 0) { // 保留表头(索引0) for (int i = table.getChildCount() - 1; i >= 1; i--) { View child = table.getChildAt(i); table.removeView(child); // 清理视图引用(非常重要!) cleanupRowViews((TableRow) child); } } } private void cleanupRowViews(TableRow row) { int childCount = row.getChildCount(); for (int i = 0; i < childCount; i++) { View view = row.getChildAt(i); // 解除视图的所有监听器 view.setOnClickListener(null); // 特别是操作按钮,需要取消所有监听器 if (view instanceof Button) { Button button = (Button) view; button.setOnClickListener(null); // 清空按钮的数据引用 button.setTag(null); } } // 从父视图中移除行 if (row.getParent() != null) { ((ViewGroup) row.getParent()).removeView(row); } } }
06-08
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