Android的 - startActivityForResult立即触发onActivityResult [英] Android - startActivityForResult immediately triggering onActivityResult

问题描述

我现在用的是调用启动我的应用程序的主要活动活动 startActivityForResult（意向，ACTIVITY_TYPE），和他们都工作，但之一。

I am launching activities from the main activity in my app using the call startActivityForResult(intent, ACTIVITY_TYPE), and they are all working but one.

这一次，调用时，启动该活动根据需要，但在日志中我可以看到 onActivityResult（）立即被触发。活动显示了，但 RESULT_CANCELLED 立即返回 onActivityResult（）。

This one, when called, launches the activity as desired, but in the log I can see that onActivityResult() is immediately being triggered. The activity shows up but RESULT_CANCELLED is immediately returned to onActivityResult().

我再与活动，preSS一个按钮，它调用交互完成（）和 onActivityResult（）不叫的时候（因为很明显的结果已经返回）。

I then interact with the activity, press a button which calls finish(), and onActivityResult() is not called the time (because apparently a result has already been returned).

这是否有意义人吗？有没有人见过这种行为之前？

Does this make sense to anyone? Has anyone seen this behavior before?

推荐答案

您无法使用 startActivityForResult（）如果你的活动正在启动一个 singleInstance 或 singleTop 。

You can't use startActivityForResult() if your activity is being launched as a singleInstance or singleTop.

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