UITextField实时监听输入文本的变化

Posted 2021-03-25 luoluosha

1 [textField addTarget:self action:@selector(textFieldChanged:) forControlEvents:UIControlEventEditingChanged];
2 
3 - (void)textFieldChanged:(UITextField*)textField{
4 
5     NSString *_string = textField.text;
6     
7 }