android:editorExtras

android:editorExtras was added in API Level 3
Related Method: setInputExtras

Reference to an <input-extras> XML resource containing additional data to supply to an input method, which is private to the implementation of the input method. This simply fills in the EditorInfo.extras field when the input method is connected.

Ensure to change the minSDKVersion to 3, or greater.

Related Articles:

Resources:

http://developer.android.com/reference/android/widget/TextView.html#attr_android:editorExtras
http://developer.android.com/reference/android/R.attr.html#editorExtras