Android 动态注册时未调用BroadcastReceiver onReceive()
在清单中注册BroadcastReceiver时调用函数“onReceive”,但如果动态注册,则不调用函数 有效的代码如下所示:Android 动态注册时未调用BroadcastReceiver onReceive(),android,android-intent,android-activity,google-glass,google-gdk,Android,Android Intent,Android Activity,Google Glass,Google Gdk,在清单中注册BroadcastReceiver时调用函数“onReceive”,但如果动态注册,则不调用函数 有效的代码如下所示: public class EyeGesture extends BroadcastReceiver { //Eye Gesture private static IntentFilter eyeGestureIntent; private static Context eyeGestureContext; private static
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;
}
}
下面是清单文件
<?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>
另外,我不想从这个类扩展BroadcastReceiver。如果动态注册,为什么我没有收到任何东西。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>
但它仍然不起作用。没有引发错误或异常。
我做错了什么?在XE21.3中观看adb logcat,它看起来像com.google.android.glass.action.EYE\u手势意图从未点击事件总线;相反,它直接跳到com.google.glass.action.TAKE_PICTURE,这与相机按钮的意图相同。因此,看起来眼动API未经宣布就被删除了。您使用的是明确的意图吗?动态注册的广播接收器似乎无法接收明确的意图。隐含意图起作用。 供参考: 如果问题不是明确的意图,但是如果您正在使用LocalBroadcastManager进行sendBroadcast,那么请确保registerReceiver也被调用为LocalBroadcastManager,而不是上下文
- 创建接收器对象
- 定义意图过滤器
- 调用RegisterReceiver()传入接收方和意图筛选器
尝试使用ApplicationContext而不是Activity Modyifing线路:
eyeGestureContext = MainFunct.getCurrentContext();
我会按以下顺序尝试:
eyeGestureContext=getApplicationContext()代码>
eyeGestureContext=getApplication()代码>
public class MyExtendedApplication extends Application {
private static MyExtendedApplication instance;
public static MyExtendedApplication getInstance() {
return instance;
}
}
这在全球“android.net.conn.CONNECTIVITY\u CHANGE”广播中对我很有用
Context c = MyExtendedApplication.getInstance();
c.registerReceiver(
connectivtyChangedReceiver,
connectivityFilter);
因此,使用“com.google.android.glass.action.EYE_-signature”也应该如此,如果通过清单进行注册,它会起作用,但如果使用Context.registerReceiver(new BroadcastReceiver()动态注册,则不会起作用;这不是问题。感谢您的帮助动态注册时,您在LogCat中得到了什么输出?我也有同样的问题。似乎没有人有明确的答案。这对OP有什么帮助?他们发布了特定的代码。
Context c = MyExtendedApplication.getInstance();
c.registerReceiver(
connectivtyChangedReceiver,
connectivityFilter);