Android Alert Dialog unable to find view

Question

I\'m having trouble getting an AlertDialog to pass text back to the activity that calls it. It seems the issue is that it fails to find the proper EditText when calling fin

Answer 1

Your inflating a layout and you have this builder.setView(modifyView);

So to initialize edittext replace

 final EditText editText = (EditText)getActivity().findViewById(R.id.modificationText);

by

 final EditText editText = (EditText) modifyViewfindViewById(R.id.modificationText);

findViewById looks for a view with id provided in the current inflated layout. You don't need getActivity instead use theinflated view object to initialize your EditText.

public final Activity getActivity ()

Added in API level 11
Return the Activity this fragment is currently associated with.

Answer 2

Change

final EditText editText = (EditText) getActivity().findViewById(R.id.modificationText);

to

final EditText editText = (EditText) modifyView.findViewById(R.id.modificationText);

Your EditText lives in modify_dialog.xml so you need to use the variable that was inflated with that layout (here modifyView) to find the id not the layout that getActivty() will look in.

Answer 3

That's because you are searching the view from the activity try using modifyView.findView…

Answer 4

Just this

EditText editText = (EditText) modifyView.findViewById(R.id.modificationText);

What was the problem?

In activity you just findViewById any view you want which refers to activity layout. But in dialog, dialogFragments, or custom views you have to refer the current layout manually, like

view.findViewById(...)

As your code was referring to its parent activity so app tried to find the id in activity but actually your id belongs to your custom view modifyView.

So this is correct way for your code to find that id.