ios - 按下iOS时按钮没有动画

我已经在xcode中以编程方式添加了按钮，但是当我通过模拟器运行该按钮时，它没有动画，即它没有像通常那样闪烁吗？

这就是我添加按钮的方式：

closeButton = [[UIButton alloc] init];
closeButton.frame = CGRectMake(505, 5, 20, 20);
[closeButton setImage:imgBtn forState:UIControlStateNormal];
[closeButton setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[closeButton addTarget:self action:@selector(closeButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:closeButton];

最佳答案

尝试这个

closeButton = [[UIButton alloc] init];
closeButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]
closeButton.frame = CGRectMake(505, 5, 20, 20);
[closeButton setImage:imgBtn forState:UIControlStateNormal];
[closeButton setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[closeButton addTarget:self action:@selector(closeButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:closeButton];

关于ios - 按下iOS时按钮没有动画，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/20573031/