强制退出Android应用使用System.exit（0）不起作用 [英] Force quit of Android App using System.exit(0) doesn't work

问题描述

当我试图通过覆盖功能，Android设备的后退按钮和System.exit（0），这不起作用退出我的Andr​​oid应用程序。

when I try to quit my Android application by overwriting the function for the back-button of Android devices and "System.exit(0)", this doesn't work.

我有一个活动叫LoginActivity和一个活动名为OverviewActivity。

I have an activity named "LoginActivity" and an activity named "OverviewActivity".

当我开始在OverviewActivity意图切换到LoginActivity，这个工作。

When I start an intent in OverviewActivity to switch to LoginActivity, this works.

Intent changeViewIntent = new Intent(OverviewActivity.this,
            LoginActivity.class);
startActivity(changeViewIntent);

现在我在LoginActivity并没有被覆盖的方法：

Now I am in LoginActivity and there is the overwritten method:

@Override
public void onBackPressed() {
    System.exit(0);
}

但是，当我preSS背键（例如，在设备模拟器）屏幕是空白了一毫秒，然后又回到了OverviewActivity。

But when I press the back-key (e.g. in the device simulator) the screen is blank for a millisecond and then it goes back to the OverviewActivity.

这是怎么回事？我只是想强制关闭时，背关键是pressed。

Why is this happening? I just want to force the close when the back-key is pressed.

历史禁用在清单中的OverviewActivity没有选择，因为有几种方法可以从其他活动访问OverviewActivity。

History disabling for the OverviewActivity in the manifest is no option, because there are several ways to access the OverviewActivity from other activities.

也许有一个想法？安卓4.0是minimium要求，因此它没有工作在较低的版本。

Maybe there is an idea? Android 4 is minimium requirement, so it doesn't have to work on lower versions..

谢谢！

推荐答案

该退出删除整个活动的呼叫历史并启动家庭Scrren的家庭活动是可能的。

The Exit is possible by deleting the whole activity-call-history and starting the Home-Activity of the Home-Scrren.

Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);

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