UITextField 键盘相关

一.点击键盘上的“Done”按钮关闭键盘

1.视图控制器实现UITextFieldDelegate协议

2.设置文本框属性

tx_username.returnKeyType = UIReturnKeyDone;
tx_username.delegate = self;

3. 重写协议方法

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    [textField resignFirstResponder];
	// the user pressed the "Done" button, so dismiss the keyboard
	return YES;
}

 

 

二.点击键盘上的“Next”按钮实现文本框焦点跳转

1.视图控制器实现UITextFieldDelegate协议

2.设置文本框属性

tx_username.returnKeyType = UIReturnKeyNext;
tx_username.delegate = self;

 3.重写协议方法

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    if ([tx_username isFirstResponder]) {
        [tx_email becomeFirstResponder];
    } else if([tx_email isFirstResponder]) {
        [tx_password becomeFirstResponder];
    } else if([tx_password isFirstResponder]) {
        [tx_conPassword becomeFirstResponder];
    } else if([tx_conPassword isFirstResponder]) {
        [self performSelector:@selector(userRegister)];//tx_conPassword指定了UIReturnKeyJoin类型后调用的方法
    }
	return YES;
}