BroadcastReceiver onReceive()不动态注册时调用

当BroadcastReceiver在Manifest中注册时调用函数“onReceive”,但在动态注册时调用。

该代码工作如下:

public class EyeGesture extends BroadcastReceiver {
    //Eye Gesture
    private static IntentFilter eyeGestureIntent;
    private static Context eyeGestureContext;
    private static StringBuilder gestureInfo = null;
    private static BroadcastReceiver broadcastReceiver;

   // public void startEyeListening() {
        //Eye Gesture

    //}

    @Override
    public void onReceive(Context context, Intent intent) {
       // this = context;
        if (intent.getStringExtra("gesture").equals("WINK")) {
            Log.e("WINKED ","");
        }else {
            Log.e("SOMETHING", "is detected " + intent.getStringExtra("gesture"));
        }
        //Disable Camera Snapshot
       // abortBroadcast();

    }

    public void stopEyeListening() {
        eyeGestureContext.unregisterReceiver(broadcastReceiver);
        eyeGestureIntent = null;
        eyeGestureContext = null;
        gestureInfo = null;
    }

}

下面是Manifest文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.inno.inno.glassplugin" >

    <uses-permission android:name="com.google.android.glass.permission.DEVELOPMENT" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainFunct"
            android:icon="@drawable/ic_glass_logo"
            android:label="@string/title_activity_main_funct" >
            <intent-filter>
                <action android:name="com.google.android.glass.action.VOICE_TRIGGER" />
            </intent-filter>
            <meta-data
                android:name="com.google.android.glass.VoiceTrigger"
                android:resource="@xml/voice_trigger" />
        </activity>

        <receiver android:name="com.inno.inno.glassplugin.EyeGesture">
            <intent-filter>
                <action android:name="com.google.android.glass.action.EYE_GESTURE" />
            </intent-filter>
        </receiver>
    </application>

</manifest>

问题是“onReceive”在动态注册时不会被调用。 我必须以动态的方式做到这一点。 下面是不是工作代码的代码。

public class EyeGesture extends Activity {
    //Eye Gesture
    IntentFilter eyeGestureIntentFilter;
    Context eyeGestureContext;
    BroadcastReceiver broadcastReceiver;


    public  EyeGesture(){
        Log.e("CONSTRUCTOR ", "");
        eyeGestureContext = MainFunct.getCurrentContext();
        eyeGestureIntentFilter = new IntentFilter("com.google.glass.action.EYE_GESTURE");
        eyeGestureIntentFilter.setPriority(1000);
        startRunning();
    }

    void startRunning(){
        eyeGestureContext.registerReceiver(new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                Log.e("Received ", " Something");
            }
        },eyeGestureIntentFilter);
    }


    @Override
    public  void onResume(){
        super.onResume();
    }

    @Override
    public  void  onPause(){
        super.onPause();
        unregisterReceiver(broadcastReceiver);
    }
    public void stopEyeListening() {
        eyeGestureContext.unregisterReceiver(broadcastReceiver);
        eyeGestureIntentFilter = null;
        eyeGestureContext = null;
    }

}

另外,我不想从这个类扩展BroadcastReceiver。 为什么我没有收到任何东西,如果动态注册。 我还从清单中删除了以下行:

 <receiver android:name="com.inno.inno.glassplugin.EyeGesture">
                <intent-filter>
                    <action android:name="com.google.android.glass.action.EYE_GESTURE" />
                </intent-filter>
 </receiver>

但仍然不起作用。 没有错误或异常抛出。 我究竟做错了什么?


你是否使用明确的意图? 看起来,动态注册的广播接收器无法获得明确的意图。 隐含意图的工作。 供参考:http://streamingcon.blogspot.com/2014/04/dynamic-broadcastreceiver-registration.html

如果问题不是明确的意图,但如果您使用LocalBroadcastManager作为sendBroadcast,那么请确保registerReceiver也被称为LocalBroadcastManager,而不是Context


尝试使用ApplicationContext而不是Activity。

主持人:

eyeGestureContext = MainFunct.getCurrentContext();

我会按以下顺序尝试:

  • eyeGestureContext = getApplicationContext();
  • eyeGestureContext = getApplication();
  • 如果上述不起作用,我会扩展应用程序并执行:

    public class MyExtendedApplication extends Application {
    
        private static MyExtendedApplication instance;
    
        public static MyExtendedApplication getInstance() {
            return instance;
        }
    }
    

    这适用于全球“android.net.conn.CONNECTIVITY_CHANGE”广播

    Context c = MyExtendedApplication.getInstance();
    c.registerReceiver(
            connectivtyChangedReceiver,
            connectivityFilter);
    

    所以也应该为你的“com.google.android.glass.action.EYE_GESTURE”


    在XE21.3中观看adb logcat,它看起来像com.google.android.glass.action.EYE_GESTURE意图从未击中事件总线; 相反,它会直接跳到com.google.glass.action.TAKE_PICTURE,这与照相机按钮具有相同的意图。 所以它看起来像眼睛的手势API没有通知就被移除了。

    链接地址: http://www.djcxy.com/p/23757.html

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