为什么＆QUOT;在onPause＆QUOT;不叫在下列情况下？ [英] why "onPause" is not called in following situation?

问题描述

由文档，在onPause之称，当：

By the document, "onPause" is called, when:

当系统即将启动恢复一个previous活动。

when the system is about to start resuming a previous activity.

相比的onStop，所不同的是：

Compared to "onStop", the difference is:

在活动不再对用户可见的，因为其他活动已经恢复并且覆盖这个叫。

Called when the activity is no longer visible to the user, because another activity has been resumed and is covering this one.

但是，当我长preSS HW-Home键和最近的应用程序显示了， 该的onPause不叫。

But when I long-press HW-Home key and the "recent apps" shows up, the "onPause" is not called.

在这个时刻，我不能长时间能够与原来的活动互动， 但它仍然是可见的。

At this moment, I can no long able to interact with the original activity, but it is still visible.

我对这种情况感到困惑。 请帮忙解释一下。

I am confused by this situation. Please help to explain.

非常感谢你。 BR， 亨利

Thank you very much. BR, Henry

推荐答案

这其实是因为当Home键长pressed，没有活动正在展开。该的onPause /的onStop将只有当你选择的应用程序present在最近的应用程序列表中的一个被调用。

This actually happens because when the Home key is long pressed, there is no activity being launched. The onPause/onStop will only be called if you select one of the apps present in the "Recent Apps" list.

在onPause的文档（）是pretty的明确的：

The docs of onPause() are pretty clear:

古称活动周期的一部分，当活动是怎么回事   到背景中，但还没有（还）被杀害。

Called as part of the activity lifecycle when an activity is going into the background, but has not (yet) been killed.

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