Android(安卓)ListView（Selector 背景图片全选 Checkbox等按钮）

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="全选" />        <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="反选" />        <TextView            android:id="@+id/totalTv"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="共选了多少个" />    </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中设置        // 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);// 多选模式        // listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);// 单选模式        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;        }    }    /**     * 全选     */    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();    }    /**     * 反选     */    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() {        // 自定义的BaseAdapter中调用notifyDataSetChanged方法会重新调用BaseAdapter的getView方法        myAdapter.notifyDataSetChanged();        handler.sendEmptyMessage(0);    }    public Handler handler = new Handler() {        @Override        public void handleMessage(Message msg) {            totalTv.setText("选中了" + count + "个");        }    };}

以下是本次Demo中用到的图片：

备注：欢迎各位大牛多多指教，谢谢！

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