在代码中将 UIButton 连接到 IBOutlet 和 IBAction [英] Connecting a UIButton to an IBOutlet and IBAction in code

问题描述

这是viewDidLoad:

I have this is viewDidLoad:

// Set up register button
UIButton *registerButton = [UIButton buttonWithType:UIButtonTypeSystem];
[registerButton setTitle:@"Register" forState:UIControlStateNormal];
registerButton.frame = CGRectMake(0.0, 0.0, self.screenWidth / 2.0, 100.0);

还有这个:

- (IBAction)buttonPressed:(UIButton *)sender
{
}

我的 .h 文件中也有这个:

I also have this in my .h file:

@property (nonatomic, weak) IBOutlet UIButton *registerButton;

如何将 IBOutlets 和 IBActions 连接到我在代码中创建的按钮?

How do I connect IBOutlets and IBActions to buttons I create in code?

推荐答案

你必须像这样为按钮设置一个目标:

You have to set a target to the button like this:

[registerButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];

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