多选按钮（作业）--MarsChen Android 开发教程笔记

package com.shumin.lbs01;

import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;


public class MainActivity extends ActionBarActivity {
private CheckBox checkboxeat;
private CheckBox checkboxsleep;
private CheckBox checkboxdota;
private CheckBox checkboxall;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
checkboxeat=(CheckBox)findViewById(R.id.checkboxeat);
checkboxsleep=(CheckBox)findViewById(R.id.checkboxsleep);
checkboxdota=(CheckBox)findViewById(R.id.checkboxdota);
checkboxall=(CheckBox)findViewById(R.id.checkboxaltogether);
onClickListener listener=new onClickListener();
checkboxall.setOnCheckedChangeListener(listener);
}

class onClickListener implements OnCheckedChangeListener{

@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
checkboxeat.setChecked(isChecked);
checkboxsleep.setChecked(isChecked);
checkboxdota.setChecked(isChecked);
}
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}

public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
}
}