Adding EditText fields on view when typing on a EditText

Adding EditText fields on view when typing on a EditText

I want to create EditTextFields dynamically on depending the condition.
Condition is that if I start typing on first EditTextField it will create
one more EditTextField in the bottom and will create the third
EditTextField when i start typing on second one. Similarly i want to
delete the bottom text if there is no text in the upper EditTextField.
Thanks.