How to create an Android file list with working back-button?

Question

I've used this file list for my new Android app: http://android-er.blogspot.com/2010/01/implement-simple-file-explorer-in.html

But the problem is that after I've browsed through the folders and then pressing the back-button of my phone, the app is closing instead of going to the previous folder.

(because it's still on the same activity, only some variables are changed)

Is there a possibility to fix this file browser that I can use the back-button without creating multiple activities?

Thank you!

Answer 1

您可以在活动中覆盖onBackPressed ，并在那里进行所需的任何操作以转到上一个目录。