如何将这样的后退按钮添加到 MainActivity 布局？

Question

I can add a back button on the toolbox but here it is as transparent. But how to add such back button to MainActivity layout?

Answer 1

Try this -

1. Set theme NoActionBar to your MainActivity
2. Create custom action bar with custom required back button
3. add onClick listener on that back button and call the finish() function to achieve back functionality.