小编Lou*_*ley的帖子

我正在尝试创建一个按钮,一旦点击将显示另一个UIView的弹出窗口.为了测试这一点,我在viewDidLoad部分中有以下代码:

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.hard1 = [UIButton buttonWithType:UIButtonTypeCustom];
    [self.hard1 setFrame:CGRectMake(884, 524, 105, 60)]; // set the x,y,width and height based on your specs
    UIImage *buttonImage = [UIImage imageNamed:@"green.jpg"];
    hard1.layer.cornerRadius = 10;
    hard1.clipsToBounds = YES;
    [hard1 addTarget: self
              action: @selector(buttonClicked:)
    forControlEvents: UIControlEventTouchUpInside];
    [self.hard1 setImage:buttonImage forState:UIControlStateNormal];
    [self.view addSubview:self.hard1];
}

进一步向下:

- (IBAction) buttonClicked: (id)sender
{
    NSLog(@"Tap");
}

但是,当我按下按钮时,控制台不会记录"Tap".有任何想法吗？

我有一个UIButton我以编程方式定义的自定义:

self.hard1 = [UIButton buttonWithType:UIButtonTypeCustom];
[self.hard1 setFrame:CGRectMake(884, 524, 105, 60)]; // set the x,y,width and height
UIImage *buttonImage = [UIImage imageNamed:@"green.jpg"];
self.hard1.layer.cornerRadius = 10;
self.hard1.clipsToBounds = YES;
[self.hard1 addTarget: self
          action: @selector(buttonTapped:)
forControlEvents: UIControlEventTouchUpInside];
[self.hard1 setImage:buttonImage forState:UIControlStateNormal];
[self.view addSubview:self.hard1];

因此,它不会在Interface Builder中显示,它只会在我运行应用程序时显示在屏幕上.这意味着我无法通过ctrl +拖动UIButton到a ViewController来选择一个popover segue.我可以在我的代码中调用segue吗？如果没有,我还有其他选择吗？