静态BroadcastReceiver未接收自定义意图

Question

@Override
public void onDestroy() {
    Log.i(TAG, "onDestroy");
    sendBroadcast(new Intent("com.myapp.app.RESTART_SERVICE"));
    stoptimertask();
    super.onDestroy();
}

public class RestarterBroadcastReceiver extends BroadcastReceiver {

    public RestarterBroadcastReceiver() {
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        Log.i(TAG, "Service stopped, restarting...");

        context.startService(new Intent(context, ActivityRecognitionService.class));
    }
}

Android清单的重要部分是：

<receiver
    android:name=".RestarterBroadcastReceiver"
    android:enabled="true"
    android:exported="true">
    <intent-filter>
        <action android:name="com.myapp.app.RESTART_SERVICE"/>
    </intent-filter>
</receiver>

为什么我的广播接收器没有收到意图？

Answer 1

你的问题可能是Android Oreo实际上禁止了隐式广播。解决这个问题的最简单方法是使用显式广播而不是隐式广播。

尝试将服务的ondestroy代码更改为以下代码：

@Override
public void onDestroy() {
    Log.i(TAG, "onDestroy");
    // Here you're using an explicit intent instead of an implicit one
    sendBroadcast(new Intent(getApplicationContext(), RestarterBroadcastReceiver.class));
    stoptimertask();
    super.onDestroy();
}

由于不再使用intent操作，您还可以将Android Manifest更改为以下内容：

<receiver
    android:name=".RestarterBroadcastReceiver"
    android:enabled="true"
    android:exported="true">
</receiver>