因为block比较好用，你懂得，直接上代码:
.h
typedef void (^choiceCompletionBlock)(int index);
+ (instancetype)shareAlertView;#pragma mark - 弹窗//普通提示弹窗- (void)showTipAlert:(NSString *)message;- (void)showTipAlert:(NSString *)message completion:(choiceCompletionBlock)completion;//可以选择的弹窗- (void)showChoiceAlert:(NSString *)message completion:(choiceCompletionBlock)completion;- (void)showChoiceAlert:(NSString *)message doneTitle:(NSString *)doneTitile completion:(choiceCompletionBlock)completion;- (void)showChoiceAlert:(NSString *)message button1Title:(NSString *)title1 button2Title:(NSString *)title2 completion:(choiceCompletionBlock)completion;// 可自定义Title- (void)showChoiceAlert:(NSString *)message title:(NSString *)title doneTitle:(NSString *)doneTitle completion:(choiceCompletionBlock)completion;- (void)showChoiceAlert:(NSString *)message title:(NSString *)title button1Title:(NSString *)button1Title button2Title:(NSString *)button2Title completion:(choiceCompletionBlock)completion;//三选择弹窗- (void)showChoiceAlert:(NSString *)message button1Title:(NSString *)title1 button2Title:(NSString *)title2 button3Title:(NSString *)title3 completion:(choiceCompletionBlock)completion;
.m
choiceCompletionBlock _choiceCompletion;
- (void)showTipAlert:(NSString *)message{ UIAlertView *alert = [[UIAlertView alloc] initWithTitle:TIPTITLE message:message delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil]; [alert show];}- (void)showTipAlert:(NSString *)message completion:(choiceCompletionBlock)completion{ if (_choiceCompletion) { return; } UIAlertView *alert = [[UIAlertView alloc] initWithTitle:TIPTITLE message:message delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil]; [alert show]; _choiceCompletion = [completion copy];}- (void)showChoiceAlert:(NSString *)message completion:(choiceCompletionBlock)completion{ [self showChoiceAlert:message doneTitle:@"确定" completion:completion];}- (void)showChoiceAlert:(NSString *)message doneTitle:(NSString *)doneTitile completion:(choiceCompletionBlock)completion{ [self showChoiceAlert:message title:TIPTITLE doneTitle:doneTitile completion:completion];}- (void)showChoiceAlert:(NSString *)message title:(NSString *)title doneTitle:(NSString *)doneTitle completion:(choiceCompletionBlock)completion { if (_choiceCompletion) { return; } UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:@"取消" otherButtonTitles:doneTitle, nil]; [alert show]; _choiceCompletion = [completion copy];}- (void)showChoiceAlert:(NSString *)message button1Title:(NSString *)title1 button2Title:(NSString *)title2 completion:(choiceCompletionBlock)completion{ if (_choiceCompletion) { return; } UIAlertView *alert = [[UIAlertView alloc] initWithTitle:TIPTITLE message:message delegate:self cancelButtonTitle:nil otherButtonTitles:title1, title2, nil]; [alert show]; _choiceCompletion = [completion copy];}- (void)showChoiceAlert:(NSString *)message title:(NSString *)title button1Title:(NSString *)button1Title button2Title:(NSString *)button2Title completion:(choiceCompletionBlock)completion { if (_choiceCompletion) { return; } UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:nil otherButtonTitles:button1Title, button2Title, nil]; [alert show]; _choiceCompletion = [completion copy];}- (void)showChoiceAlert:(NSString *)message button1Title:(NSString *)title1 button2Title:(NSString *)title2 button3Title:(NSString *)title3 completion:(choiceCompletionBlock)completion{ if (_choiceCompletion) { return; } UIAlertView *alert = [[UIAlertView alloc] initWithTitle:TIPTITLE message:message delegate:self cancelButtonTitle:nil otherButtonTitles:title1, title2, title3, nil]; [alert show]; _choiceCompletion = [completion copy];} #pragma mark - UIAlertViewDelegate- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ if (_choiceCompletion) { _choiceCompletion(buttonIndex); _choiceCompletion = nil; }} 上面的代码会有个问题，就是假如代码多次调用alert的时候就只能显示一个了，解决的办法我想到了一个不错的。
#import#define EOCMyAlertViewKey @"EOCMyAlertViewKey"
- (void)showTipAlert:(NSString *)message{ UIAlertView *alert = [[UIAlertView alloc] initWithTitle:TIPTITLE message:message delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil]; [alert show];}- (void)showTipAlert:(NSString *)message completion:(choiceCompletionBlock)completion{ UIAlertView *alert = [[UIAlertView alloc] initWithTitle:TIPTITLE message:message delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil]; objc_setAssociatedObject(alert, EOCMyAlertViewKey, completion, OBJC_ASSOCIATION_COPY); [alert show]; }- (void)showChoiceAlert:(NSString *)message completion:(choiceCompletionBlock)completion{ [self showChoiceAlert:message doneTitle:@"确定" completion:completion];}- (void)showChoiceAlert:(NSString *)message doneTitle:(NSString *)doneTitile completion:(choiceCompletionBlock)completion{ [self showChoiceAlert:message title:TIPTITLE doneTitle:doneTitile completion:completion];}- (void)showChoiceAlert:(NSString *)message title:(NSString *)title doneTitle:(NSString *)doneTitle completion:(choiceCompletionBlock)completion { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:@"取消" otherButtonTitles:doneTitle, nil]; objc_setAssociatedObject(alert, EOCMyAlertViewKey, completion, OBJC_ASSOCIATION_COPY); [alert show];}- (void)showChoiceAlert:(NSString *)message button1Title:(NSString *)title1 button2Title:(NSString *)title2 completion:(choiceCompletionBlock)completion{ UIAlertView *alert = [[UIAlertView alloc] initWithTitle:TIPTITLE message:message delegate:self cancelButtonTitle:nil otherButtonTitles:title1, title2, nil]; objc_setAssociatedObject(alert, EOCMyAlertViewKey, completion, OBJC_ASSOCIATION_COPY); [alert show];}- (void)showChoiceAlert:(NSString *)message title:(NSString *)title button1Title:(NSString *)button1Title button2Title:(NSString *)button2Title completion:(choiceCompletionBlock)completion { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:nil otherButtonTitles:button1Title, button2Title, nil]; objc_setAssociatedObject(alert, EOCMyAlertViewKey, completion, OBJC_ASSOCIATION_COPY); [alert show];}- (void)showChoiceAlert:(NSString *)message button1Title:(NSString *)title1 button2Title:(NSString *)title2 button3Title:(NSString *)title3 completion:(choiceCompletionBlock)completion{ UIAlertView *alert = [[UIAlertView alloc] initWithTitle:TIPTITLE message:message delegate:self cancelButtonTitle:nil otherButtonTitles:title1, title2, title3, nil]; objc_setAssociatedObject(alert, EOCMyAlertViewKey, completion, OBJC_ASSOCIATION_COPY); [alert show];} #pragma mark - UIAlertViewDelegate- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ choiceCompletionBlock block = objc_getAssociatedObject(alertView, EOCMyAlertViewKey); if (block) { block(buttonIndex); }} 使用runtime中的关联就能很好的解决问题，也不用数组什么的！