如何在Android中更改活動的標題？ - How to change title of Activity in Android?

問題：

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.更改我當前活動的標題，但它似乎不起作用。

Can anyone guide me on how to change this?誰能指導我如何改變這一點？

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解決方案：

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