Question

我尝试在UIScrollView中设置UITextField，并使键盘根据需要调整滚动视图进行编辑。我使用的代码不起作用，是否需要对委托代理进行任何其他设置？

-(void)textFieldDidBeginEditing:(UITextField *)textField
{
    [myScrollView setContentOffset:CGPointMake(0,textField.center.y-140) animated:YES];
}

-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
    [textField resignFirstResponder];
    [myScrollView setContentOffset:CGPointMake(0,0) animated:YES];

    return YES;
}
- (void)viewDidLoad
{
    [super viewDidLoad];
    [myScrollView setScrollEnabled:YES];
    [myScrollView setContentSize:CGSizeMake(320, 750)];
    UITextField *title = [[UITextField alloc] initWithFrame:CGRectMake(10, 410, 300, 30)];
    title.font = [UIFont fontWithName:@"Helvetica-Bold" size:25];
    title.backgroundColor=[UIColor whiteColor];
    title.placeholder = @"Sample Text";
    [myScrollView addSubview:title];
}

Answer 1

在viewDidLoad中，您应该为代理添加此内容：

title.delegate = self;

如果看到警告，请在头文件.h add

中

<UITextFieldDelegate>

在UIScrollView中调整键盘

1 个答案: