AccessibilityService no comienza en Android 4.0.4

Question

Estoy tratando de comenzar mi servicio de accesibilidad en Android 4.0.4 pero no puedo comenzar. Funciona bien en 2.3.3. Pero no hay suerte para la versión actualizada. He intentado esta sugerencia.AccessibilityService se inicia pero no recibe accesibilidad eventos en JellybeanAquí está mi código.

Public Class Notificationservice extiende AccessibilityService {

static final String TAG = "NotificationService";


private String getEventType(AccessibilityEvent event) {
    switch (event.getEventType()) {
        case AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED:
            return "TYPE_NOTIFICATION_STATE_CHANGED";
        case AccessibilityEvent.TYPE_VIEW_CLICKED:
            return "TYPE_VIEW_CLICKED";
        case AccessibilityEvent.TYPE_VIEW_FOCUSED:
            return "TYPE_VIEW_FOCUSED";
        case AccessibilityEvent.TYPE_VIEW_LONG_CLICKED:
            return "TYPE_VIEW_LONG_CLICKED";
        case AccessibilityEvent.TYPE_VIEW_SELECTED:
            return "TYPE_VIEW_SELECTED";
        case AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED:
            return "TYPE_WINDOW_STATE_CHANGED";
        case AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED:
            return "TYPE_VIEW_TEXT_CHANGED";
    }
    return "default";
}

private String getEventText(AccessibilityEvent event) {
    StringBuilder sb = new StringBuilder();
    for (CharSequence s : event.getText()) {
        sb.append(s);
    }
    return sb.toString();
}




  @Override
  public void onAccessibilityEvent(AccessibilityEvent event) {
    Toast.makeText(this, "Got event from " + event.getPackageName(), Toast.LENGTH_SHORT)
            .show();
    //Vibrator v = (Vibrator) getSystemService(VIBRATOR_SERVICE);
   // v.vibrate(new long[] { 0, 250, 250, 250, 250, 250, 250, 250, 250 }, -1);

    Log.v(TAG, String.format(
            " onAccessibilityEvent: [type] %s [class] %s [package] %s [time] %s [text] %s",
            getEventType(event), event.getClassName(), event.getPackageName(),
            event.getEventTime(), getEventText(event)));

  }

  @Override
  public void onInterrupt() {Log.v(TAG, "onInterrupt"); }

  @Override
    protected void onServiceConnected() {
        super.onServiceConnected();
        Log.v(TAG, "onServiceConnected");
        AccessibilityServiceInfo info = new AccessibilityServiceInfo();
        info.flags = AccessibilityServiceInfo.DEFAULT;
        info.eventTypes = AccessibilityEvent.TYPES_ALL_MASK;
        info.feedbackType = AccessibilityServiceInfo.FEEDBACK_GENERIC;
        setServiceInfo(info);
    }

}

Y el manifiesto es:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.watchservice"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="16" />

    <uses-permission android:name="android.permission.VIBRATE" />


    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.watchservice.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service android:name=".NotificationService" android:enabled="true" 
            android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE" >
        <intent-filter>
            <action android:name="android.accessibilityservice.AccessibilityService" />
        </intent-filter>
        <meta-data android:name="android.accessibilityservice" android:resource="@xml/accessibilityservice" />

    </service>
    </application>

</manifest>

sugirirme, ¿a dónde me estoy equivocando?

Answer 1

Agregué una metaetiqueta en Manifest por error, que es básicamente para una versión más alta que ICS. Después de eliminar la metaetiqueta de la aplicación Android 4.0.4, funciona.

Si tengo esta etiqueta en el archivo manifiesto, no funciona, como se sugiere que era para la versión más nueva de Android.

<meta-data android:name="android.accessibilityservice" android:resource="@xml/accessibilityservice" />