android EditText获取光标位置并插入字符删除字符

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); 
 

补充：移动开发 , Android ,

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