如何从通知状态栏打开最后一个活动? [英] How to open last activity from notification status bar?

问题描述

我想通过点击状态栏中的通知来打开上次启动的活动.假设我启动了一个活动 A(我的应用程序的主要活动)，这个活动会向通知状态栏发送一个通知.活动 A 还打开活动 B，B 打开另一个活动 C.从 C 我按下主页按钮.现在我想再次转到我的应用程序，因此从通知栏中我点击通知(由 A 发送).此处通知应启动活动 C，因为它是上次打开的.

I want to open last started activity by tapping on the notification in status bar. Suppose I start an Activity A (main activity of my app), this activity sends a notification to notification status bar. activity A also opens an activity B and B opens another activity C. From C i press home button. Now i want to go again to my app so from notification bar i tap on notification (which was sent by A). Here the notification should start activity C because it was last opened.

我确实对此进行了搜索，但没有找到正确的答案.提前致谢.

I did search on this but didn't find proper answer. Thanks in advance.

推荐答案

几天前，我的问题得到了非常简单的解决方案.我们可以做如下简单的事情，而不是遍历 recentTasks 并获取我们的任务，然后通过它获取 baseIntent:

Few days back I got very very simple solution for my problem. Instead of iterating through recentTasks and getting our task and then getting baseIntent through it, we can do simple thing as follows:

Intent notificationIntent = new Intent(context, MainActivity.class);
notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
notificationIntent.setAction(Intent.ACTION_MAIN);

baseIntent 包含与上述 Intent 相同的参数.因此，与其从 recentTasks 中获取 baseIntent，不如使用上面的代码.

baseIntent contains the same parameters as above Intent has. Hence instead of grabbing baseIntent from recentTasks, it's quite good to use above code.

此 notificationIntent 然后将传递给 pendingIntent 以供进一步使用.

This notificationIntent will then be passed to pendingIntent for further use.

提供:MainActivity 是我们启动应用程序时的第一个活动，并且在 AndroidManifest.xml 中它必须包含 CATEGORY_LAUNCHER 的 IntentFilters 和 <代码>ACTION_MAIN.

Provided: MainActivity is the very first activity when we launch our app and in AndroidManifest.xml it must contain IntentFilters of CATEGORY_LAUNCHER and ACTION_MAIN.

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