Android的：如何使发射器始终打开的主要活动，而不是子活动？ （或其他） [英] Android: How to make launcher always open the main activity instead of child activity? (or otherwise)

问题描述

我有活动，A和B，A是一个与发射台的意图过滤器（即启动时我们点击主屏幕上的应用程序图标的活动）。

I have activities A and B. The A is the one with LAUNCHER intent-filter (i.e. the activity that is started when we click the app icon on home screen).

一个推出乙 startActivity（新意图（A.this，B.class））。

当用户有B活性开，然后把我的应用程序进入后台，后来我的应用程序的过程中被杀害，当用户再次启动我的应用程序，B被打开，而不是一个。

When the user has the B activity open, and then put my application into the background, and later my application's process is killed, when the user starts my application again, B is opened instead of A.

这引起了强制关闭我的应用程序，因为A是初始化资源，我的应用程序需求的活动，而当B试图访问未初始化的资源，B崩溃。

This caused a force close in my app, because A is the activity that initializes the resources my app needs, and when B tried to access the uninitialized resources, B crashes.

你有什么建议，我该怎么办在这种情况下？

Do you have any suggestions what should I do in this situation?

推荐答案

那么你真的应该有b活动初始化资源了。但你可以把<一href="http://developer.android.com/guide/topics/manifest/activity-element.html#clear"><$c$c>android:clearTaskOnLaunch="true"在您的舱单活性的有发射经常去该活动。

Well you should really have activity B initialize your resources too. But you can put android:clearTaskOnLaunch="true" in your manifest for activity A to have the launcher always go to that activity.

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