Android programming to hide the status bar and test whether the activity is active

This article describes the method of hiding the status bar and testing whether the activity is active by Android programming. Share with you for your reference, as follows:

1、 Hide status bar

The method is as follows: add the code of / / remove title to the program.

2、 How to judge whether an ativity is active.

The following code can be added to the program:

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I hope this article will help you in Android programming.