如何将自定义UI按钮添加到UIAlertView中

Question

我有一个关于自定义UIAlertView 的问题

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，但是我无法触发按钮的操作。自定义按钮被添加到UIAlertView中，但我怎么不能为它们添加操作呢？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

您可以使用UIAlertView的自定义视图。如果你的secondButton有问题，这可能是因为你把目标设置为nil，它应该是self

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

刚刚尝试并使用

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。