如何在Android中更改活动的标题？ - How to change title of Activity in Android?

问题：

I am using我在用

Window w = getWindow();
w.setTitle("My title");

to change title of my current Activity but it does not seem to work.更改我当前活动的标题，但它似乎不起作用。

Can anyone guide me on how to change this?谁能指导我如何改变这一点？

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解决方案：

参考一： https://stackoom.com/question/9DuE
参考二： How to change title of Activity in Android?