如何将自定义UIbutton添加到UIAlertView？

Question

我对自定义UIAlertView有疑问

我甚至从背景和按钮自定义UIAlertView 。 我在其中添加了自定义按钮，但是无法触发按钮的操作。 自定义按钮已添加到UIAlertView ，但是如何为它们添加动作呢？ 请帮帮我。 是因为UIAlertView不能让我们拥有自定义按钮吗？

UIButton *firstButton = [[UIButton alloc] initWithFrame:CGRectMake(10, 120, 90, 30)];
UIButton *secondButton = [[UIButton alloc] initWithFrame:CGRectMake(180, 120, 90, 30)];

UIImage *btnImage = [UIImage imageNamed:kButtonBlackImage];

[firstButton setBackgroundImage:btnImage forState:UIControlStateNormal];
[firstButton setTitle:@"Don't Favorite" forState:UIControlStateNormal];
firstButton.titleLabel.font = BOLDFONTSMALL;
[firstButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[firstButton addTarget:self action:@selector(cancelFavorite:) forControlEvents:UIControlEventTouchUpInside];

[secondButton setBackgroundImage:btnImage forState:UIControlStateNormal];
[secondButton setTitle:@"Save Favorite" forState:UIControlStateNormal];
[secondButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
secondButton.titleLabel.font = BOLDFONTSMALL;
[secondButton addTarget:nil action:@selector(addFavorite:) forControlEvents:UIControlEventTouchUpInside];  

[alert addSubview:firstButton];
[alert addSubview:secondButton];

Answer 1

[firstButton addTarget:self action:@selector(cancelFavorite:) forControlEvents:UIControlEventTouchUpInside];

 Add that buttons properly 

Answer 2

您可以将自定义视图用于UIAlertView 。 如果您的secondButton存在问题，则可能是因为您将目标设置为nil ，所以它应该是self

 [secondButton addTarget:self action:@selector(addFavorite:) forControlEvents:UIControlEventTouchUpInside];

刚刚尝试过并使其与：

UIAlertView*testAlert=[[UIAlertView alloc] initWithFrame:CGRectMake(0, 0, 140, 140)];
[testAlert show];
UIButton*testButton=[UIButton buttonWithType:UIButtonTypeRoundedRect];
[testButton setFrame:CGRectMake(0, 0, 40, 40)];
[testButton addTarget:self action:@selector(someAction) forControlEvents:UIControlEventTouchUpInside];
[testAlert addSubview:testButton];

我可以使用我的someAction方法。