android EditText获取光标位置并且插入字符或者删除字符

1.获取光标位置

 

[java] 

int index = editText.getSelectionStart();  

 

int index = editText.getSelectionStart();

2.在光标处插入字符

 

[java] 

int index = editText.getSelectionStart();  

Editable editable = editText.getText();  

editable.insert(index, "aaaa");  

 

int index = editText.getSelectionStart();

Editable editable = editText.getText();

editable.insert(index, "aaaa");3.删除光标前字符

 

[java] 

int index = editText.getSelectionStart();  

Editable editable = editText.getText();  

editable.delete(index-1, index);  

 

int index = editText.getSelectionStart();

Editable editable = editText.getText();

editable.delete(index-1, index);