单击通知时恢复活动 [英] Resume an activity when clicked on a notification

问题描述

我已经制作了一个管理短信的应用程序，创建了通知，但是当我单击通知时，它会启动另一个活动，我想知道如何检查活动是否已停止并恢复.

I've made an app which manage sms, I've created the notifications but when I click on them it starts another activity, I would like to know how to check if an activity has been stopped and resume it.

以下是用于创建待定意图的代码:

Here is the code used to create the pendingintent:

private void createNotification(SmsMessage sms, Context context){

    final NotificationManager nm = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);

    String contentTitle = "";


    // construct the Notification object.
        final NotificationCompat.Builder  builder = new NotificationCompat.Builder(context)
        .setContentTitle(contentTitle)
         .setContentText(sms.getMessageBody())
         .setSmallIcon(R.drawable.ic_launcher)
         .setLargeIcon(getIconBitmap())
         .setNumber(nmessages);

        builder.setAutoCancel(true);

        //(R.drawable.stat_sample, tickerText,
          //      System.currentTimeMillis());

        // Set the info for the views that show in the notification panel.
        //notif.setLatestEventInfo(this, from, message, contentIntent);
        /*
        // On tablets, the ticker shows the sender, the first line of the message,
        // the photo of the person and the app icon.  For our sample, we just show
        // the same icon twice.  If there is no sender, just pass an array of 1 Bitmap.
        notif.tickerTitle = from;
        notif.tickerSubtitle = message;
        notif.tickerIcons = new Bitmap[2];
        notif.tickerIcons[0] = getIconBitmap();;
        notif.tickerIcons[1] = getIconBitmap();;
        */

     // Creates an explicit intent for an Activity in your app
        Intent resultIntent = new Intent(context, BasicActivity.class);

        resultIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        // Because clicking the notification opens a new ("special") activity, there's
        // no need to create an artificial back stack.
        PendingIntent resultPendingIntent =
            PendingIntent.getActivity(
            context,
            0,
            resultIntent,
            PendingIntent.FLAG_UPDATE_CURRENT
        );


       // Ritardo in millisecondi



     builder.setContentIntent(resultPendingIntent);

     nm.notify(R.drawable.ic_drawer, builder.build());

推荐答案

您需要在PendingIntent的标志中设置标志，例如FLAG_UPDATE_CURRENT.

You need to set flags in your PendingIntent's ...like FLAG_UPDATE_CURRENT.

这就是全部. http://developer.android.com/reference/android/app/PendingIntent.html

我误解了这个问题.

以下是具有相同问题但已解决的主题的链接:

Here are links to topics that had the same issue but are resolved:

从通知中恢复活动

通知恢复活动

意图恢复先前暂停的活动(从通知中调用)

Android:从先前位置恢复应用

请阅读以上答案以获取完整的解决方案，让我知道它是否有效.

Please read the above answers for a full solution and let me know if it works.

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