1、实现BroadcastReceiver接口类 ScreenReceiver
package com.itheima.boradcastreceiver;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class ScreenReceiver extends BroadcastReceiver {
public ScreenReceiver() {
}
@Override
public void onReceive(Context context, Intent intent) {
// TODO: This method is called when the BroadcastReceiver is receiving
// an Intent broadcast.
//throw new UnsupportedOperationException("Not yet implemented");
String str = intent.getAction();
if (str == Intent.ACTION_SCREEN_OFF){
System.out.println("屏幕关闭");
}
else if (str == Intent.ACTION_SCREEN_ON){
System.out.println("屏幕打开");
}
}
}
2、在Service中注册BroadcastReceiver
@Override
public void onCreate() {
super.onCreate();
//注册广播接受者
//1、创建广播接受者对象
receiver = new ScreenReceiver();
//2、创建Intent-filter,意图过滤器
intentFilter = new IntentFilter();
intentFilter.addAction(Intent.ACTION_SCREEN_OFF);
intentFilter.addAction(Intent.ACTION_SCREEN_ON);
//3、注册广播接受者
registerReceiver(receiver,intentFilter);
}
@Override
public void onDestroy() {
//解除注册广播接受者
super.onDestroy();
unregisterReceiver(receiver);
}