Question

我正在打开通知活动，打开正常。但是，当我点击“返回按钮”时，我想打开它的父级活动，目前它直接退出应用程序。我希望它导航到HomeScreenActivity。

这是清单声明 -

<activity
        android:name="com.discover.activities.MyTrialsActivity"
        android:exported="true"
        android:parentActivityName="com.discover.activities.HomeScreenActivity"
        android:screenOrientation="portrait">
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.discover.activities.HomeScreenActivity" />
    </activity>

以下是我生成通知的代码 -

public static PendingIntent getAction(Activity context, int actionId) {
    Intent intent;
    PendingIntent pendingIntent;

    intent = new Intent(context, MyTrialsActivity.class);

    //intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

    TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
    // Adds the back stack
    //stackBuilder.addParentStack(HomeScreenActivity.class);
    stackBuilder.addParentStack(HomeScreenActivity.class);
    // Adds the Intent to the top of the stack
    stackBuilder.addNextIntent(intent);
    // Gets a PendingIntent containing the entire back stack
    pendingIntent =
            stackBuilder.getPendingIntent(0 /*request code */, PendingIntent.FLAG_ONE_SHOT);

    /*pendingIntent = PendingIntent.getActivity(context, 0 *//* Request code *//*, intent,
            PendingIntent.FLAG_UPDATE_CURRENT*//*|PendingIntent.FLAG_ONE_SHOT*//*);*/
    return pendingIntent;
}

/**
 * Create and show a simple notification containing the message.
 *
 * @param message Message to show in notification
 */
public static void sendNotification(Context context, String message, int actionId) {
    PendingIntent pendingIntent = NotifUtils.getAction((Activity) context, actionId);

    Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(context)
            .setSmallIcon(R.mipmap.ic_launcher)
            .setContentTitle("Title")
            .setContentText(message)
            .setAutoCancel(true)
            .setSound(defaultSoundUri)
            .setVibrate(new long[]{1000})
            .setContentIntent(pendingIntent);

    NotificationManager notificationManager =
            (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

    notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}

Answer 1

解决方案 -

我在addParentStack(MyTrialActivity.class);中添加了我的孩子活动
它按预期工作。我认为添加addNextIntent()应该已经这样做了，虽然它没有这样做..

Answer 2

我已经正确设置了所有内容并且仍然无法正常工作可能需要卸载并重新安装应用程序。在运行应用程序时，似乎无法正确更新清单的某些更改！

Answer 3

我在android的文档中找到了解决方案

// Intent for the activity to open when user selects the notification
Intent detailsIntent = new Intent(this, DetailsActivity.class);

// Use TaskStackBuilder to build the back stack and get the PendingIntent
PendingIntent pendingIntent =
        TaskStackBuilder.create(this)
                        // add all of DetailsActivity's parents to the stack,
                        // followed by DetailsActivity itself
                        .addNextIntentWithParentStack(upIntent)
                        .getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);

NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
builder.setContentIntent(pendingIntent);

和， Here是链接。

另外，请参阅this答案以获取更多参考资料。

Answer 4

尝试使用startActivities(Context context, Intent[] intents)，

Intent homeIntent = new Intent(context, HomeScreenActivity.class);
        Intent newIntent = new Intent(context, MyTrialsActivity.class);
        Intent[] intents = new Intent[]{homeIntent, newIntent};

        ContextCompat.startActivities(context, intents);

因此我们可以同时启动多个活动，因此在按“返回”按钮时，它将转到主页而不是退出应用程序。

从通知单击时使用backstack无法正常导航

4 个答案: