实时监控textview输入的方法

textview代理方法

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range
replacementString:(NSString *)string;

//监听textfield输入通知方法

    [[NSNotificationCenter
defaultCenter] addObserver:self
selector:@selector(textFiledEditChanged:)
name:UITextFieldTextDidChangeNotification
object:self.inPutTF];