Android ListView（Selector 背景圖片 全選 Checkbox等按鈕）

list_item.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <ImageView
        android:id="@+id/img"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true"
        android:layout_margin="5dp" />

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_toRightOf="@id/img"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#ffffff"
            android:textSize="22sp" />

        <TextView
            android:id="@+id/info"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#ffffff"
            android:textSize="13sp" />
    </LinearLayout>

    <CheckBox
        android:id="@+id/check"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        android:clickable="false"
        android:focusable="false"
        android:focusableInTouchMode="false" />

</RelativeLayout>

 

listview.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="wrap_content"
        android:gravity="center"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/button1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="全選" />

        <Button
            android:id="@+id/button2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="取消" />

        <Button
            android:id="@+id/button3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="反選" />

        <TextView
            android:id="@+id/totalTv"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="共選了多少個" />
    </LinearLayout>

    <ListView
        android:id="@+id/mylistview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@android:color/white"
        android:divider="@android:color/darker_gray"
        android:dividerHeight="1dp"
        android:fadingEdge="none"
        android:scrollingCache="false" >
    </ListView>

</LinearLayout>

 

ViewHolder.java

package com.wangzhu.demoselector;

import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.TextView;

public final class ViewHolder {

    public ImageView img;
    public TextView title;
    public TextView info;
    public CheckBox checkBox;
}

 

MyAdapter.java

package com.wangzhu.demoselector;

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

import android.annotation.SuppressLint;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.TextView;

public class MyAdapter extends BaseAdapter {

    private Context context;
    private LayoutInflater inflater;

    private List<Map<String, Object>> items;
    private Map<Integer, Boolean> isSelectedMap;

    public MyAdapter(Context context, List<Map<String, Object>> items) {
        this.context = context;
        this.items = items;
        init();
    }

    private void init() {
        Log.d("MyAdapter", "MyAdapter init");
        inflater = LayoutInflater.from(context);
        isSelectedMap = new HashMap<Integer, Boolean>();
        for (int i = 0, size = items.size(); i < size; i++) {
            isSelectedMap.put(i, false);
        }
    }

    @Override
    public int getCount() {
        return items.size();
    }

    @Override
    public Object getItem(int position) {
        return items.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @SuppressLint("NewApi")
    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        ViewHolder viewHolder = null;
        if (null == convertView) {
            convertView = inflater.inflate(R.layout.list_item, null);
            // convertView = inflater.inflate(R.layout.list_item_1, null);
            viewHolder = new ViewHolder();
            viewHolder.img = (ImageView) convertView.findViewById(R.id.img);
            viewHolder.title = (TextView) convertView.findViewById(R.id.title);
            viewHolder.info = (TextView) convertView.findViewById(R.id.info);
            viewHolder.checkBox = (CheckBox) convertView
                    .findViewById(R.id.check);
            convertView.setTag(viewHolder);

        } else {
            viewHolder = (ViewHolder) convertView.getTag();
        }

        viewHolder.img.setBackgroundResource(Integer.parseInt(String
                .valueOf(items.get(position).get("img"))));
        viewHolder.title.setText(String.valueOf(items.get(position)
                .get("title")));
        viewHolder.info
                .setText(String.valueOf(items.get(position).get("info")));

        // 或者在list_item.xml中設定
        // android:background="@drawable/list_item_bg_selector"

        Log.d("MyAdapter",
                "1===getView isSelected===" + convertView.isSelected()
                        + "   isChecked======"
                        + viewHolder.checkBox.isChecked());

        viewHolder.checkBox.setChecked(isSelectedMap.get(position));
        convertView.setPressed(isSelectedMap.get(position));
        convertView.setSelected(isSelectedMap.get(position));
        convertView.setActivated(isSelectedMap.get(position));

        Log.d("MyAdapter",
                "2====getView isSelected===" + convertView.isSelected()
                        + "   isChecked======"
                        + viewHolder.checkBox.isChecked());

        // convertView
        // .setBackgroundResource(R.drawable.list_item_bg_color_selector);
        // convertView.setBackgroundResource(R.drawable.list_item_bg_selector);

        if (isSelectedMap.get(position)) {
            convertView.setBackgroundResource(R.drawable.child_list_bg_1);
        } else {
            convertView.setBackgroundResource(R.drawable.child_list_item);
        }

        return convertView;
    }

    public Map<Integer, Boolean> getIsSelectedMap() {
        return isSelectedMap;
    }

}

 

ListViewActivity.java

 

package com.wangzhu.demoselector;

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

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.ListView;
import android.widget.TextView;

public class ListViewActivity extends Activity implements OnClickListener {

    private final static String TAG = "ListViewActivity";
    private MyAdapter myAdapter;
    private ListView listView;
    private Button button1, button2, button3;
    private TextView totalTv;

    private List<Map<String, Object>> datas;

    private int count = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.listview);
        init();
    }

    private void init() {
        getDatas();

        button1 = (Button) findViewById(R.id.button1);
        button1.setOnClickListener(this);

        button2 = (Button) findViewById(R.id.button2);
        button2.setOnClickListener(this);

        button3 = (Button) findViewById(R.id.button3);
        button3.setOnClickListener(this);

        totalTv = (TextView) findViewById(R.id.totalTv);

        myAdapter = new MyAdapter(getApplicationContext(), datas);
        listView = (ListView) findViewById(R.id.mylistview);
        listView.setAdapter(myAdapter);
        listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);// 多選模式
        // listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);// 單選模式

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view,
                    int position, long id) {
                Log.d(TAG,
                        "onItemClick======="
                                + String.valueOf(datas.get(position).get(
                                        "title")) + " position=" + position
                                + " id=" + id);
                ViewHolder viewHolder = (ViewHolder) view.getTag();
                CheckBox checkBox = viewHolder.checkBox;
                final Map<Integer, Boolean> isSelectedMap = myAdapter
                        .getIsSelectedMap();
                switch (listView.getChoiceMode()) {
                case ListView.CHOICE_MODE_SINGLE:
                    if (!isSelectedMap.get(position)) {
                        checkBox.toggle();
                        isSelectedMap.put(position, true);
                    }
                    break;
                case ListView.CHOICE_MODE_MULTIPLE:
                    checkBox.toggle();
                    if (checkBox.isChecked()) {
                        count++;
                    } else {
                        count--;
                    }

                    handler.sendEmptyMessage(0);

                    if (checkBox.isChecked()) {
                        view.setBackgroundResource(R.drawable.child_list_bg_1);
                    } else {
                        view.setBackgroundResource(R.drawable.child_list_item);
                    }
                    isSelectedMap.put(position, checkBox.isChecked());
                    break;
                default:
                    break;
                }
            }
        });
    }

    public void getDatas() {
        datas = new ArrayList<Map<String, Object>>();
        Map<String, Object> map = null;
        for (int i = 0; i < 20; i++) {
            map = new HashMap<String, Object>();
            map.put("title", "G" + i);
            map.put("info", "Google " + i);
            map.put("img", R.drawable.ic_launcher);
            datas.add(map);
        }
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.button1:
            allSelected();
            break;
        case R.id.button2:
            cancelSelected();
            break;
        case R.id.button3:
            ReverseSelection();
            break;
        default:
            break;
        }
    }

    /**
     * 全選
     */
    public void allSelected() {
        final Map<Integer, Boolean> isSelectedMap = myAdapter
                .getIsSelectedMap();
        for (int i = 0, size = isSelectedMap.size(); i < size; i++) {
            if (!isSelectedMap.get(i)) {
                count++;
            }
            isSelectedMap.put(i, true);
        }
        dataChanged();
    }

    /**
     * 取消
     */
    public void cancelSelected() {
        final Map<Integer, Boolean> isSelectedMap = myAdapter
                .getIsSelectedMap();
        for (int i = 0, size = isSelectedMap.size(); i < size; i++) {
            if (isSelectedMap.get(i)) {
                count--;
            }
            isSelectedMap.put(i, false);
        }
        dataChanged();
    }

    /**
     * 反選
     */
    public void ReverseSelection() {
        final Map<Integer, Boolean> isSelectedMap = myAdapter
                .getIsSelectedMap();
        for (int i = 0, size = isSelectedMap.size(); i < size; i++) {
            // isSelectedMap.put(i, !isSelectedMap.get(i));
            if (isSelectedMap.get(i)) {
                count--;
                isSelectedMap.put(i, false);
            } else {
                count++;
                isSelectedMap.put(i, true);
            }

        }
        dataChanged();
    }

    public void dataChanged() {
        // 自定義的BaseAdapter中呼叫notifyDataSetChanged方法會重新呼叫BaseAdapter的getView方法
        myAdapter.notifyDataSetChanged();
        handler.sendEmptyMessage(0);
    }

    public Handler handler = new Handler() {

        @Override
        public void handleMessage(Message msg) {
            totalTv.setText("選中了" + count + "個");
        }

    };
}

 

以下是本次Demo中用到的圖片：

 

 

 

 備註：歡迎各位大牛多多指教，謝謝！