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Android

Posted by Jake Nagle
Jake Nagle
2,942 Points

Confused about savedInstanceState...

I'm confused about the meaning of (Bundle savedInstanceState) in this context (on the third line):

public class AlertDialogFragment extends DialogFragment {
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        Context context = getActivity();
        AlertDialog.Builder builder = new AlertDialog.Builder(context)
                .setTitle(R.string.error_title)
                .setMessage(R.string.error_message)
                .setPositiveButton(R.string.error_ok_button_text, null);
        AlertDialog dialog = builder.create();
        return dialog;
    }
}

I tried looking it up but didn't find a good answer. Can someone who understands please dumb it down a little bit for me? Thanks!

Ben Deitch
Ben Deitch
Treehouse Teacher
Ben Deitch
Ben Deitch
Treehouse Teacher

Watching the first two videos from this course might help.

1 Answer

jrabello
jrabello
17,917 Points
jrabello
jrabello
17,917 Points

Hello Jake,

It's important to pay attention to annotations(@Override), if you're extending some class it may tell you that you MUST override some method that will be called by some thread at some moment(almost always events from user or operating system)

savedInstanceState is an object of type Bundle that is passed as argument when this method is called