android ListView做报表 自动绑定

使用方式：

private TableListView tableListView;

tableListView = view.findViewById(R.id.ts_table);

tableListView.builder(mContext,table,new HashMap<String, Object>(){{
    put("time","时间");
    put("data","用量");
    put("cost","成本");
}});

效果：

通用适配器

Adapter：

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import androidx.annotation.NonNull;

import java.util.List;
import java.util.Map;

public abstract class ListViewAdapter extends ArrayAdapter<Map<String,Object>> {
    private ViewHolder holder;
    private int resourceId;
    private static final int MAX_ITEM_COUNT = 4;

    public ListViewAdapter(@NonNull Context context, int resource, @NonNull List<Map<String, Object>> mapList) {
        super(context, resource, mapList);
        this.resourceId = resource;
    }

    @Override
    public View getView(int position, View convertView, @NonNull ViewGroup parent){

        Map<String,Object> map = getItem(position);
        // 加个判断，以免ListView每次滚动时都要重新加载布局，以提高运行效率
        View view;
        if (convertView==null){
            // 避免ListView每次滚动时都要重新加载布局，以提高运行效率
            view = LayoutInflater.from(getContext()).inflate(resourceId,parent,false);
            holder = new ViewHolder(view);
            // 将ViewHolder存储在View中（即将控件的实例存储在其中）
            view.setTag(holder);
        } else {
            view = convertView;
            holder = (ViewHolder) view.getTag();
        }
        // 控件实例
        setData(holder,map,position);
        return view;
    }
    /** 写布局元素 */
    public abstract void setData(ViewHolder holder,Map<String,Object> map,int position);


}

通用ViewHolder

ViewHolder：

import android.content.Context;
import android.os.Build;
import android.util.SparseArray;
import android.view.View;
import android.widget.Adapter;
import android.widget.TextView;

import androidx.annotation.RequiresApi;

import com.ln.ln_app.utility.CString;

import java.util.Map;

public class ViewHolder {
 
    public final SparseArray<View> views;
    private View convertView;
    private Adapter adapter;
    private Context context;
 
    public ViewHolder(View convertView) {
        this.views = new SparseArray<View>();
        this.convertView = convertView;
    }
 
    public <T extends View> T getView(int viewId) {
        View view = views.get(viewId);
        if (view == null) {
            view = convertView.findViewById(viewId);
            views.put(viewId, view);
        }
        return (T) view;
    }
 
    public Adapter getAdapter() {
        return adapter;
    }

/** 根据map的key自动绑定textview
    @RequiresApi(api = Build.VERSION_CODES.M)
    public void dataBinding(Context context,Map<String,Object> map){
        if(map.size() > 0) {
            for (String key : map.keySet()) {
                /** 获取资源id */
                int id = convertView.getResources().getIdentifier(key, "id", context.getApplicationContext().getPackageName());
                View view = getView(id);
                if(view != null) {
                    String[] viewType = view.getAccessibilityClassName().toString().split("\\.");
                    if(viewType.length > 0){
                        switch (viewType[viewType.length - 1]){
                            case "TextView":
                                ((TextView)view).setText(CString.get(map,key));
                                break;
                            case "":
                                break;
                        }
                    }
                }
            }
        }
    }

    public void setAdapter(Adapter adapter) {
        this.adapter = adapter;
    }
}

 

封装ListView

TableListView：

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.TextView;

import com.ln.ln_app.R;
import com.ln.ln_app.ui.adapter.base.ListViewAdapter;
import com.ln.ln_app.ui.adapter.base.ViewHolder;
import com.ln.ln_app.utility.CString;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class TableListView extends RelativeLayout {
    private View view;
    private ListViewAdapter listViewAdapterTitle,listViewAdapterBody;

    public TableListView(Context context, AttributeSet attrs) {
        super(context, attrs);

        /** 加载布局 */
        view = LayoutInflater.from(context).inflate(R.layout.fragment_table, this);
    }

    public void builder(Context mContext,List<Map<String,Object>> mapList, Map<String,Object> titleMap){
        if(mapList.size() > 0) {
            if(mapList.get(0).size() > 5) return;
            int id = getLoyoutId(mapList.get(0).size());
            /** 适配表头信息 */
            listViewAdapterTitle = new ListViewAdapter(mContext, id, new ArrayList<Map<String,Object>>(){{
                add(mapList.get(0));
            }}) {
                @Override
                public void setData(ViewHolder holder, Map<String, Object> map,int position) {
                    if(titleMap != null && titleMap.size() > 0){
                        setTitle(holder,map,titleMap);
                    } else {
                        setTitle(holder,map);
                    }
                }
            };
            ListView titleView = view.findViewById(R.id.lv_table_title);
            titleView.setAdapter(listViewAdapterTitle);

            /** 适配表体信息 */
            listViewAdapterBody = new ListViewAdapter(mContext, id, mapList) {
                @Override
                public void setData(ViewHolder holder, Map<String, Object> map,int position) {
                    setBody(holder,map);
                }
            };
            ListView bodyView = view.findViewById(R.id.lv_table_body);
            bodyView.setAdapter(listViewAdapterBody);
        }
    }

    public void builder(Context mContext,List<Map<String,Object>> mapList){
        builder(mContext,mapList,null);
    }

    /**
     * 获取资源id
     * @param col
     * @return
     */
    private int getLoyoutId(int col){
        /** 获取资源id */
        int id = 0;
        switch (col){
            case 1:
                id = R.layout.fragment_table_style_1;
                break;
            case 2:
                id = R.layout.fragment_table_style_2;
                break;
            case 3:
                id = R.layout.fragment_table_style_3;
                break;
            case 4:
                id = R.layout.fragment_table_style_4;
                break;
            case 5:
                id = R.layout.fragment_table_style_5;
                break;
        }
        return id;
    }

    /**
     * 适配表头
     * @param holder
     * @param map
     */
    private void setTitle(ViewHolder holder, Map<String, Object> map){
        setTitle(holder,map,null);
    }
    private void setTitle(ViewHolder holder, Map<String, Object> map, Map<String, Object> titleMap){
        if(map == null) return;
        if(map.size() > 0) {
            int i = 1;
            for(String key : map.keySet()){
                TextView tv = holder.getView(getResId(i));
                if(titleMap != null && titleMap.containsKey(key)){
                    tv.setText(CString.get(titleMap,key));
                } else {
                    tv.setText(key);
                }

                i++;
            }
        }
    }

    /**
     * 适配表体
     * @param holder
     * @param map
     */
    private void setBody(ViewHolder holder, Map<String, Object> map){
        if(map == null) return;
        if(map.size() > 0) {
            int i = 1;
            for(String key : map.keySet()){
                TextView tv = holder.getView(getResId(i));
                tv.setText(CString.get(map,key));
                i++;
            }
        }
    }

    /**
     * 获取资源id
     * @param col
     * @return
     */
    private int getResId(int col){
        /** 获取资源id */
        int id = 0;
        switch (col){
            case 1:
                id = R.id.title_1;
                break;
            case 2:
                id = R.id.title_2;
                break;
            case 3:
                id = R.id.title_3;
                break;
            case 4:
                id = R.id.title_4;
                break;
            case 5:
                id = R.id.title_5;
                break;
        }
        return id;
    }
}

表格标题及表体
fragment_table.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:tools="http://schemas.android.com/tools"
    android:background="@android:color/white">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <ListView
            android:id="@+id/lv_table_title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:listSelector="@android:color/transparent"
            android:fastScrollEnabled="false"
            android:scrollbars="none"
            android:divider="@null"
            android:groupIndicator="@null"
            android:layoutDirection="ltr"/>

        <ListView
            android:id="@+id/lv_table_body"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:listSelector="@android:color/transparent"
            android:fastScrollEnabled="false"
            android:scrollbars="none"
            android:divider="@null"
            android:groupIndicator="@null"
            android:layoutDirection="ltr"/>
    </LinearLayout>

</RelativeLayout>

只处理到最大5字段表格，创建5个xml分别对应1~5个字段的表格

fragment_table_style_5.xml

<?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="match_parent"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="30dp"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/title_1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:text="title_1"
            android:textSize="14sp"/>

        <TextView
            android:id="@+id/title_2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:text="title_2"
            android:textSize="14sp"/>

        <TextView
            android:id="@+id/title_3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:text="title_3"
            android:textSize="14sp"/>

        <TextView
            android:id="@+id/title_4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:text="title_4"
            android:textSize="14sp"/>

        <TextView
            android:id="@+id/title_5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:text="title_5"
            android:textSize="14sp"/>
    </LinearLayout>


    <View
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:layout_marginTop="2dp"
        android:background="@color/divider"/>
</LinearLayout>