Android-将日期从一个片段添加到另一个正在运行的片段

Question

I have 2 Fragments, A and B

A is already running and has edittexts and data filled out.

There is a button in A that opens fragment B

fragment B is a list of pictures

I need to select a picture from B and send it back to A where it is set as an imageview.

how do I do this with out loosing all the data already filled out in A.

Answer 1

尝试Fragment.setTargetFragment和Fragment.getTargetFragment

Answer 2

Use onSaveInstanceState http://developer.android.com/reference/android/app/Fragment.html#onSaveInstanceState(android.os.Bundle)

Check out this thread if you're still having problems saving the states in fragments. Fragment's onSaveInstanceState() is never called