实现的步骤如下：
一、创建项目
1.1 项目构建图：
1.2 代码展示如下：
1.2.1 MainActivity .class文件
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.app.Activity;
import android.content.Context;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ListView;
import android.widget.TextView;
public class MainActivity extends Activity {
private CheckBox check_all;
private ListView lView;
private CheckAdapter checkAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
check_all = (CheckBox) findViewById(R.id.check_all);
lView = (ListView) findViewById(R.id.list_view);
List<String> list = new ArrayList<String>();
for (int i = 0; i < 15; i++) {
list.add("这是条目"+i);
}
checkAdapter = new CheckAdapter(getApplicationContext(),list);
lView.setAdapter(checkAdapter);
check_all.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
boolean flag = check_all.isChecked();
for (int i = 0; i < checkAdapter.getSelect().size(); i++) {
checkAdapter.getSelect().set(i, flag);
}
checkAdapter.notifyDataSetChanged();
}
});
}
private class CheckAdapter extends BaseAdapter {
private List<String> list;
private Context context;
private LinkedList<Boolean> linkedList = new LinkedList<Boolean>();
public CheckAdapter(Context context, List<String> list) {
// TODO Auto-generated constructor stub
this.list = list;
this.context = context;
//初始化
for (int i = 0; i < list.size(); i++) {
getSelect().add(false);
}
}
private List<Boolean> getSelect() {
return linkedList;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return list.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return list.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = View.inflate(context, R.layout.item, null);
}
CheckBox ck = (CheckBox) convertView.findViewById(R.id.ck);
TextView tView = (TextView) convertView.findViewById(R.id.tv);
tView.setText(list.get(position));
ck.setChecked(linkedList.get(position));
//不能用onCheckChangedListner()复用的时候
ck.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
linkedList.set(position, ! linkedList.get(position));
if (linkedList.contains(false)) {
check_all.setChecked(false);
}else {
check_all.setChecked(true);
}
//刷新
notifyDataSetChanged();
}
});
return convertView;
}
}
}
1.3 布局文件
1.3.1 activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ListView
android:layout_above="@+id/check_all"
android:id="@+id/list_view"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</ListView>
<CheckBox
android:id="@+id/check_all"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="全选" />
</RelativeLayout>
1.3.2 item.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="horizontal" >
<CheckBox
android:id="@+id/ck"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<TextView
android:id="@+id/tv"
android:textSize="18sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>