小编San*_*shi的帖子

我想检测屏幕关闭和打开事件，因为我创建了 BroadcastReceiver，它仅在应用程序运行时才能正常工作，而当我从任务管理器中删除该应用程序时，它就不起作用。

活动：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    try{
        BroadcastReceiver myrcver  = new BootReceiver();
        IntentFilter screenStateFilter = new IntentFilter();
        screenStateFilter.addAction(Intent.ACTION_SCREEN_ON);
        screenStateFilter.addAction(Intent.ACTION_SCREEN_OFF);
        registerReceiver(myrcver, screenStateFilter);
    }
    catch (Exception e){
        e.fillInStackTrace();
    }
}

梅尼弗斯特：

<receiver
        android:name=".BootReceiver"
        android:enabled="true"
        android:exported="true"
        android:label="BootReceiver">
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
            <action android:name="android.intent.action.SCREEN_OFF" />
            <action android:name="android.intent.action.SCREEN_ON" />
        </intent-filter>
    </receiver>

广播接收器：

public class BootReceiver extends BroadcastReceiver {
boolean screenOff;
@Override
public void onReceive(Context context, Intent intent) {
    try {
        if ("android.intent.action.SCREEN_ON".equals(intent.getAction())) {
            if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
                screenOff = true;
            } …