学步园

final static int  getSelectionEnd(CharSequence text)
Return the offset of the selection edge or cursor, or -1 if there is no selection or cursor.

final static int  getSelectionStart(CharSequence text)
Return the offset of the selection anchor or cursor, or -1 if there is no selection or cursor.

final static void  removeSelection(Spannable text)
Remove the selection or cursor, if any, from the text.

final static void  selectAll(Spannable text)
Select the entire text.

final static void  setSelection(Spannable text, int index)
Move the cursor to offset index.

static void  setSelection(Spannable text, int start, int stop)
Set the selection anchor to start and the selection edge to stop.