Question

我有一个简单的AsyncTask，它正在执行后台下载并使用通知向用户显示反馈。此外，此通知还有取消下载的操作。单击动作后，应该发出广播，我的接收器类应该抓住它。但是，我无法点击按钮：它似乎不会以任何方式互动。所有点击都会转到通知本身。如果我在内容意图上设置了PendingIntent，那么它可以正常工作。

我正在运行CyanogenMod Lollipop 5.0.2

这是代码。

的AndroidManifest.xml

    <receiver android:name=".CancelReceiver">
        <intent-filter>
            <action android:name="org.warpten.dizzy.stopdownload"></action>
        </intent-filter>
    </receiver>

异步任务构造函数

    public DownloaderTask(Context ctx, SearchMatch info) {
        _context = ctx;
        _info = info;

        _notification = new Notification.Builder(_context);
        _notificationManager = (NotificationManager)_context.getSystemService(Context.NOTIFICATION_SERVICE);

        Intent actionIntent = new Intent("org.warpten.dizzy.stopdownload");
        actionIntent.putExtra("notificationId", _info.id);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(_context, 0, actionIntent, PendingIntent.FLAG_ONE_SHOT);

        _notification.setPriority(Notification.PRIORITY_MAX);
        if (ImageCache.HasImage(_info.id))
            _notification.setLargeIcon(ImageCache.GetImageBitmap(_info.id));
        // _notification.setContentIntent(pendingIntent); // This works
        _notification.addAction(android.R.drawable.ic_menu_close_clear_cancel,
            "Cancel", pendingIntent); // Doesn't work, cannot interact with the action
    }

经理可以在doInBackground中进一步通知通知。

广播接收器

public class CancelReceiver extends BroadcastReceiver {

    interface ICancelReceiver
    {
        void CancelDownload(int trackId);
    }

    public static ICancelReceiver Listener; // Lazyness to write a setter

    @Override
    public void onReceive(Context context, Intent intent) {
        int notificationId = intent.getIntExtra("notificationId", -1);
        if (Listener != null && notificationId != -1)
            Listener.CancelDownload(notificationId);
    }
}

Answer 1

尝试将此添加到清单文件中

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

Answer 2

<强>的AndroidManifest.xml

<application>
      <receiver android:name=".CancelReceiver">
        <intent-filter>
            <action android:name="org.warpten.dizzy.stopdownload"></action>
        </intent-filter>
     </receiver>
   </application>

异步任务构造函数

class TestAsy extends AsyncTask<Void, Void, Void>{

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
    @SuppressLint("NewApi")
    public TestAsy(Context context){
        Log.e("TrackDownloaderDecrypterTask"," ");
        android.app.Notification.Builder mBuilder = new android.app.Notification.Builder(
                context);
        NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        Intent buttonIntent = new Intent("org.warpten.dizzy.stopdownload");
        buttonIntent.putExtra("notificationId", 1);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0,
                buttonIntent, PendingIntent.FLAG_ONE_SHOT);
        mBuilder.setPriority(android.app.Notification.PRIORITY_MAX);
        //Bitmap largeIcon = BitmapFactory.decodeResource(getResources(), R.drawable.logosmall);
        //mBuilder.setLargeIcon(largeIcon);
        //Doesn't work, setLargeIcon That's why i am using setSmallIcon
        mBuilder.setSmallIcon(R.drawable.logosmall);

        mBuilder.addAction(android.R.drawable.ic_menu_close_clear_cancel,
                "Cancel", pendingIntent);
        mNotificationManager.notify(0, mBuilder.build());
    }
    @Override
    protected Void doInBackground(Void... params) {
        // TODO Auto-generated method stub
        return null;
    }

};

广播接收器

    public class CancelReceiver extends BroadcastReceiver {

interface ICancelReceiver
{
    void CancelDownload(int trackId);
}

public static ICancelReceiver Listener; // Lazyness to write a setter

@Override
public void onReceive(Context context, Intent intent) {
    // Create Notification Manager
    NotificationManager notificationmanager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
    // Dismiss Notification
    notificationmanager.cancel(0);
    Toast.makeText(context, "onStartCommand", Toast.LENGTH_SHORT).show();
    int notificationId = intent.getIntExtra("notificationId", -1);
    if (Listener != null && notificationId != -1)
        Listener.CancelDownload(notificationId);
}

}

Android通知操作无法点击

2 个答案: