main.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<CheckBox
android:id="@+id/eatId"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="吃饭" />
<CheckBox
android:id="@+id/sleepId"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="睡觉" />
<CheckBox
android:id="@+id/playDotaId"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="打dota" />
<CheckBox
android:id="@+id/allCheckId"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="全选" />
</LinearLayout>
MainActivity.java:
package com.example.allchecked; import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener; public class MainActivity extends Activity {
private CheckBox eatBox;
private CheckBox sleepBox;
private CheckBox playDotaBox;
private CheckBox allCheckBox; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
eatBox = (CheckBox)findViewById(R.id.eatId);
sleepBox = (CheckBox)findViewById(R.id.sleepId);
playDotaBox = (CheckBox)findViewById(R.id.playDotaId);
allCheckBox = (CheckBox)findViewById(R.id.allCheckId); AllCheckListener allCheckListener = new AllCheckListener();
allCheckBox.setOnCheckedChangeListener(allCheckListener); CheckBoxListener listener = new CheckBoxListener();
eatBox.setOnCheckedChangeListener(listener);
sleepBox.setOnCheckedChangeListener(listener);
playDotaBox.setOnCheckedChangeListener(listener); /* OnBoxClickListener clicklistener = new OnBoxClickListener();
eatBox.setOnClickListener(clicklistener);
sleepBox.setOnClickListener(clicklistener);
playDotaBox.setOnClickListener(clicklistener);
*/
} /* class OnBoxClickListener implements OnClickListener{ @Override
public void onClick(View view) {
// TODO Auto-generated method stub
CheckBox box = (CheckBox)view;
if(box.getId() == R.id.eatId){
System.out.println("eatBox");
}
else if(box.getId() == R.id.sleepId){
System.out.println("sleepBox");
}
else{
System.out.println("dotaBox");
}
if(box.isChecked()){
System.out.println("checked");
}
else{
System.out.println("unchecked");
}
}
}*/ public class CheckBoxListener implements OnCheckedChangeListener{ @Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
// TODO Auto-generated method stub
if(buttonView.getId() == R.id.eatId){
System.out.println("eatBox");
}
else if(buttonView.getId() == R.id.sleepId){
System.out.println("sleepBox");
}
else{
System.out.println("dotaBox");
}
if(isChecked){
System.out.println("checked");
}
else{
System.out.println("unchecked");
}
} } public class AllCheckListener implements OnCheckedChangeListener{ @Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
// TODO Auto-generated method stub
eatBox.setChecked(isChecked);
sleepBox.setChecked(isChecked);
playDotaBox.setChecked(isChecked);
} } }
全选按钮的功能还不是很完善,选中上面三个所有,全选按钮不会自动被选中;同时点击全选之后,点击上面某一个不再选中,全选不会自动取消选中。