Android edittext添加和删除字符

2.光标后添加字符

private void addChar(EditText editText, String data){    int index = editText.getSelectionStart();    Editable editable = editText.getText();    editable.insert(index, data);}

3.删除光标前字符

private void deleteChar(EditText editText){    int index = editText.getSelectionStart();    Editable editable = editText.getText();    editable.delete(index-1, index);}