Android 如何利用Service和BroadcastReceiver开机自启&保活APP_alarmservice 保活

有时遇到这样的需求 需要开机自启项目 且时刻保持存活状态

可以利用Service和Broadcast 相互连接 保证通讯 使APP时刻保持 存活状态

如何实现呢？

AlarmService

首先在项目定义一个服务 AlarmService extends Service

public class AlarmService extends Service {
    private final String TAG = AlarmService.class.getSimpleName();
    //定义的时间为1分钟 
    private static final int ONE_MINUTE = 60 * 1000;
    private static final int PENDING_REQUEST = 0;

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.e(TAG, "AlarmService:onStartCommand");
        if (!SilentUtils.isForeground(getApplication().getBaseContext(), getApplication().getBaseContext().getPackageName())) {
            Log.e(TAG, "启动app");
            SilentUtils.launchApp(getApplication().getBaseContext(), getApplication().getBaseContext().getPackageName());
        }

        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        //从开机到现在的毫秒书（手机睡眠(sleep)的时间也包括在内
        long triggerAtTime = SystemClock.elapsedRealtime() + ONE_MINUTE;
        Intent AlarmIntent = new Intent(this, AlarmReceive.class);
        PendingIntent pIntent = PendingIntent.getBroadcast(this, PENDING_REQUEST, AlarmIntent, PENDING_REQUEST);
        alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, triggerAtTime, pIntent);

        return super.onStartCommand(intent, flags, startId);
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        throw new UnsupportedOperationException("Not yet implemented");
    }
}
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BroadcastReceiver

这里收到请求后 再返回 AlarmService 然后由 AlarmService 再次执行60*1000

public class AlarmReceive extends BroadcastReceiver {
    private final String TAG = AlarmReceive.class.getSimpleName();
    @Override
    public void onReceive(Context context, Intent intent) {
        Log.e(TAG,"AlarmReceive:onReceive");
        Intent serviceIntent = new Intent(context, AlarmService.class);
        context.startService(serviceIntent);
    }
}
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Log 日志

通过日志我们看出 每1分钟 AlarmService 和BroadcastReceiver就会送一次请求

注册

通过AlarmService 和BroadcastReceiver 互动 可以达到我要的效果
不要忘记注册
在manifest

 <service
            android:name=".ipad.service.AlarmService"
            android:enabled="true"
            android:exported="true" />

<receiver android:name=".ipad.receive.AlarmReceive" />
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