How do I make an Android EditView 'Done' button and hide the keyboard when clicked?

First you need to set the android:imeOptions attribute equal to actionDone for your target EditText as seen below. That will change your ‘RETURN’ button in your EditText’s soft keyboard to a ‘DONE’ button.

<EditText 
    android:id="@+id/edittext_done"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:hint="Enter some text"
    android:imeOptions="actionDone"
    android:singleLine="true"
    />

Use TextView.setImeOptions and pass it actionDone. like textView.setImeOptions(EditorInfo.IME_ACTION_DONE);

Include both imeOptions and singleLine:

<EditText 
   android:id="@+id/edittext_done"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:imeOptions="actionDone"
   android:singleLine="true"
   />