Question

我在我的应用程序中使用GCM，并且每当收到GCM消息时都使用NotificationManager创建通知。现在一切正常，GCM消息在通知区域正确显示，但是当我点击通知时它应该开始我的应用程序的活动，它将显示未发生的消息详细信息。每次我点击通知它都不会启动任何活动，它仍然保持原样。我创建通知的代码是：

private void sendNotification(String msg) {
        SharedPreferences prefs = getSharedPreferences(
                DataAccessServer.PREFS_NAME, MODE_PRIVATE);
        mNotificationManager = (NotificationManager) this
                .getSystemService(Context.NOTIFICATION_SERVICE);
        Intent intent = new Intent(this, WarningDetails.class);
        Bundle bundle = new Bundle();
        bundle.putString("warning", msg);
        bundle.putInt("warningId", NOTIFICATION_ID);
        intent.putExtras(bundle);
        // The stack builder object will contain an artificial back stack for
        // the
        // started Activity.
        // This ensures that navigating backward from the Activity leads out of
        // your application to the Home screen.
        TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
        // Adds the back stack for the Intent (but not the Intent itself)
        stackBuilder.addParentStack(WarningDetails.class);
        // Adds the Intent that starts the Activity to the top of the stack
        stackBuilder.addNextIntent(intent);

        PendingIntent contentIntent = stackBuilder.getPendingIntent(0,
                PendingIntent.FLAG_UPDATE_CURRENT);

        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
                this).setSmallIcon(R.drawable.weather_alert_notification)
                .setContentTitle("Weather Notification")
                .setStyle(new NotificationCompat.BigTextStyle().bigText(msg))
                .setContentText(msg);
        String selectedSound = prefs.getString("selectedSound", "");
        if (!selectedSound.equals("")) {
            Uri alarmSound = Uri.parse(selectedSound);
            mBuilder.setSound(alarmSound);

        } else {
            Uri alarmSound = RingtoneManager
                    .getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
            mBuilder.setSound(alarmSound);
        }

        if (prefs.getBoolean("isVibrateOn", false)) {
            long[] pattern = { 500, 500, 500, 500, 500, 500, 500, 500, 500 };
            mBuilder.setVibrate(pattern);
        }

        mBuilder.setContentIntent(contentIntent);
        mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
    }

我更新了我的代码以支持Preserving Navigation when Starting an Activity，就像它在使用Android开发者网站的Gmail应用程序中发生一样，此后它停止了工作。有人请指导我在此代码中缺少或做错了。

Answer 1

我的问题解决了我只需要添加PendingIntent.FLAG_ONE_SHOT标志，所以我更换了：

PendingIntent contentIntent = stackBuilder
                .getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);

到

PendingIntent contentIntent = stackBuilder
                .getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT
                        | PendingIntent.FLAG_ONE_SHOT);

Answer 2

我遇到了同样的问题并通过将 android：exported =＆＃34; true＆＃34; 添加到AndroidManifest.xml中的活动声明来解决它。

Answer 3

在这里你刚刚将你的意图传递给了pendingintent：见下文

Intent notificationIntent = new Intent(context, Login.class);

 PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
and set this contentintent into your Notification:

Notification noti = new NotificationCompat.Builder(context)
                    .setSmallIcon(icon_small)
                    .setTicker(message)
                    .setLargeIcon(largeIcon)
                    .setWhen(System.currentTimeMillis())
                    .setContentTitle(title)
                    .setContentText(message)
                    .setContentIntent(**contentIntent**)
                    .setAutoCancel(true).build();

这可能会对你有帮助。

Answer 4

如果使用操作字符串启动预期活动，请不要忘记添加

<intent-filter>
       <action android:name="YOUR ACTION STRING"/>
       <category android:name="android.intent.category.DEFAULT" />
</intent-filter>

在<activity></activity>标记内

Answer 5

尝试此操作而不是最后一行：

mNotificationManager.notify（0，mBuilder.getNotification（））;

Answer 6

您要启动的活动必须在清单中指定为LAUNCHER活动 - 否则将无法通过Pending Intent启动。在AndroidManifext.xml

中添加以下内容

<activity
...
android:exported="true">
<intent-filter>
    <category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

否则您将需要使用已指定为LAUNCHER的活动（例如您的主要活动）

Answer 7

在generateNotification（）方法上执行类似的操作..

用您的Splash.Java类替换您的活动。

/**
     * Issues a notification to inform the user that server has sent a message.
     */
    @SuppressWarnings("deprecation")
    private static void generateNotification(Context context, String message) {
        int icon = R.drawable.ic_launcher;
        long when = System.currentTimeMillis();
        //message = "vivek";
       // Log.d("anjan", message.split("~")[0]);
        //Toast.makeText(context, message, Toast.LENGTH_LONG).show();

        NotificationManager notificationManager = (NotificationManager)
                context.getSystemService(Context.NOTIFICATION_SERVICE);
        Notification notification = new Notification(icon, message, when);

        String title = context.getString(R.string.app_name);
        Log.d("anjan1", title);
        String text_message = context.getString(R.string.title_activity_main);
        Log.d("anjan1", text_message);

        Intent notificationIntent = new Intent(context, Splash.class);
        // set intent so it does not start a new activity
        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
                Intent.FLAG_ACTIVITY_SINGLE_TOP);
        PendingIntent intent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
        notification.setLatestEventInfo(context, title, message, intent);
        notification.flags |= Notification.FLAG_AUTO_CANCEL;

        // Play default notification sound
        notification.defaults |= Notification.DEFAULT_SOUND;

        // Vibrate if vibrate is enabled
        notification.defaults |= Notification.DEFAULT_VIBRATE;
        notificationManager.notify(0, notification);      

    }

单击“通知”是否未启动预期活动？

7 个答案: