【代码笔记】iOS-UIActionSheet动态添加按钮

#import <UIKit/UIKit.h>

@interface RootViewController : UIViewController
<UIActionSheetDelegate>

@end

//点击任何处，弹出UIActionSheet
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UIActionSheet *sheet=[[UIActionSheet alloc]initWithTitle:@"标题" delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil, nil];

// 逐个添加按钮（比如可以是数组循环）
[sheet addButtonWithTitle:@"Item A"];
[sheet addButtonWithTitle:@"Item B"];
[sheet addButtonWithTitle:@"Item C"];
// 同时添加一个取消按钮
[sheet addButtonWithTitle:@"Cancel"];

sheet.cancelButtonIndex = sheet.numberOfButtons-1;
[sheet showInView:self.view];

}