广播接收器可在模拟器上运行，但不能在真实设备上运行(Android Oreo) [英] Broadcast receiver working on emulator but not on working real device (Android Oreo)

问题描述

广播接收器在我杀死我的应用程序时可以完美地工作，它可以在后台工作.但是我安装了我的真实设备，当我杀死应用程序时并没有.

Broadcast receiver it's work perfectly when I kill my application it work in background. but i installed my real device it's don't when i kill application.

> Java Code

    public class BackgroundService extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Toast.makeText(context,"Send Message",Toast.LENGTH_LONG).show();
    }
}

> MainActivity
     BackgroundService backgroundService;
      @Override
    protected void onStart() {
        super.onStart();
        IntentFilter intentFilter = new IntentFilter(WifiManager.WIFI_STATE_CHANGED_ACTION);
        registerReceiver(backgroundService,intentFilter);
    }


> Manifests 



<uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.WAKE_LOCK"/>
    <uses-permission android:name="android.permission.SEND_SMS"/>
    <uses-permission android:name="android.permission.READ_SMS"/>
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <uses-permission android:name="android.permission.DISABLE_KEYGUARD"/>

    <receiver android:name=".BackgroundService">
        <intent-filter android:priority="999">
            <action android:name="android.intent.action.SCREEN_ON"/>
            <action android:name="android.provider.Telephony.SMS_RECEIVED"/>
        </intent-filter>
    </receiver>

推荐答案

从android 8开始，如果您有任何隐式广播，则必须将其注册到清单中而不是清单中的活动中就您而言

<action android:name="android.intent.action.SCREEN_ON"/> <action android:name="android.provider.Telephony.SMS_RECEIVED"/>

似乎是隐式广播.尝试使用 intentFilter.addAction(您的操作)

seems to be implicit broadcast. Try registering them in your activity class using intentFilter.addAction(Your Action)

还通过 onStop 取消注册接收者呼叫 unregisterReceiver(接收器实例)

Also unregister you receiver in onStop by calling unregisterReceiver(Receiver instance)

这篇关于广播接收器可在模拟器上运行，但不能在真实设备上运行(Android Oreo)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！