正在从通知栏中获取所有应用 android

Question

我需要获取通知栏中已存在的所有应用通知。为此，我使用 NotificationListenerService 和 BroadcastReceiver 来获取某些参数，例如 Notification.EXTRA_TITLE、Notification.EXTRA_SUB_TEXT 等。但是 NotificationListenerService 面临的问题是我可以无法获取面板中的现有通知，其中我可以获得应用程序在前台时收到的未来通知。请帮助我解决这个问题是否有属性来获取通知栏中已经显示的所有应用程序通知。我也发布了我正在使用的代码供您参考。

SimpleKitkatNotificationListener.java

public class SimpleKitkatNotificationListener extends NotificationListenerService {

    @Override
    public void onCreate() {
        super.onCreate();
        //android.os.Debug.waitForDebugger();
    }

    @Override
    public void onNotificationPosted(StatusBarNotification sbn) {

        Notification mNotification=sbn.getNotification();

        Log.i("notification",mNotification.tickerText.toString());
        if (mNotification!=null){
            Bundle extras = mNotification.extras;

            Intent intent = new Intent(MainActivity.INTENT_ACTION_NOTIFICATION);
            intent.putExtras(mNotification.extras);
            sendBroadcast(intent);

            Notification.Action[] mActions=mNotification.actions;
            if (mActions!=null){
                for (Notification.Action mAction:mActions){
                    int icon=mAction.icon;
                    CharSequence actionTitle=mAction.title;
                    PendingIntent pendingIntent=mAction.actionIntent;
                }
            }
        }
    }

    @Override
    public void onNotificationRemoved(StatusBarNotification sbn) {

    }
}

并且在 Activity class 中通过 BroadcastReceiver 接收回调如下

MainActivity.java

public class 主要Activity 扩展 Activity {

protected MyReceiver mReceiver = new MyReceiver();
public static String INTENT_ACTION_NOTIFICATION = "it.gmariotti.notification";

protected TextView title;
protected TextView text;
protected TextView subtext;
protected ImageView largeIcon;

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    //Retrieve ui elements
    title = (TextView) findViewById(R.id.nt_title);
    text = (TextView) findViewById(R.id.nt_text);
    subtext = (TextView) findViewById(R.id.nt_subtext);
    largeIcon = (ImageView) findViewById(R.id.nt_largeicon);

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main, menu);
    return super.onCreateOptionsMenu(menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.action_autorize:
            Intent intent = new Intent("android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS");
            startActivity(intent);
            return true;
    }
    return super.onOptionsItemSelected(item);
}

@Override
protected void onResume() {
    super.onResume();
    if (mReceiver == null) mReceiver = new MyReceiver();
    registerReceiver(mReceiver, new IntentFilter(INTENT_ACTION_NOTIFICATION));
}

@Override
protected void onPause() {
    super.onPause();
    unregisterReceiver(mReceiver);
}

public class MyReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {

        if (intent != null) {
            Bundle extras = intent.getExtras();
            String notificationTitle = extras.getString(Notification.EXTRA_TITLE);
            int notificationIcon = extras.getInt(Notification.EXTRA_SMALL_ICON);
            Bitmap notificationLargeIcon = ((Bitmap) extras.getParcelable(Notification.EXTRA_LARGE_ICON));
            Bitmap notificationSmallIcon = ((Bitmap) extras.getParcelable(Notification.EXTRA_SMALL_ICON));

            CharSequence notificationText = extras.getCharSequence(Notification.EXTRA_TEXT);
            CharSequence notificationSubText = extras.getCharSequence(Notification.EXTRA_SUB_TEXT);

            title.setText(notificationTitle);
            text.setText(notificationText);
            subtext.setText(notificationSubText);

            if (notificationLargeIcon != null) {
                largeIcon.setImageBitmap(notificationLargeIcon);
            }else if(notificationSmallIcon !=null){
                largeIcon.setImageBitmap(notificationSmallIcon);
            }
        }

    }
}

以上如有不明之处敬请见谅。任何一段代码和 hind 都会对我很有帮助。提前致谢。

Answer 1

尝试阅读文档：

http://developer.android.com/reference/android/service/notification/NotificationListenerService.html

那里有一个示例，说明您如何定义服务来处理与 NLS 的绑定。这将允许您获取 NLS 实例并使用

http://developer.android.com/reference/android/service/notification/NotificationListenerService.html#getActiveNotifications()

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