我是iPhone开发的新手.我想设置一个活动指示器,它载在我的自定义按钮上.请指导我. (例如：App store – > Search – >再显示25个(点击)).
解决方法
添加UIActivityIndicatorView作为按钮的子视图：
// Create spinner UIActivityIndicatorView *myIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite]; // Position the spinner [myIndicator setCenter:CGPointMake(myButton.frame.size.width / 2,myButton.frame.size.height / 2)]; // Add to button [myButton addSubview:myIndicator]; // Start the animation [myIndicator startAnimating];