Android EditText - Focus on it and select all text programmatically

Question

I am new to Android and I am trying to figure out how do I focus on EditText and select all text in it.

Here is the scenario:

1. User enters user name in E

Answer 1

You can also add android:selectAllOnFocus="true" to the EditText

Answer 2

For selection of all the text of Edittext, you can use

editText.setSelection(0,editText.getText().toString().length());

and if you want to set cursor position you can use

editText.setSelection(position);

Answer 3

I figured it out. Here is what I did.

I have a button user clicks when he enters user name (the positive button on DialogFragment). On button click event, I do this:

editUserName.setSelectAllOnFocus(true);
editUserName.selectAll();

This will focus and select all text in the EditText.