用block将UIAlertView与UIActionSheet统一起来

//
//  UIInfomationView.h
//  Alert
//
//  Created by YouXianMing on 15/6/23.
//  Copyright (c) 2015年 YouXianMing. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

typedef void (^ClickAtIndexBlock)(NSInteger buttonIndex);

@interface UIInfomationView : NSObject

/**
*  弹出AlertView对话框
*
*  @param title             标题
*  @param message           信息
*  @param cancelButtonTitle 取消按钮
*  @param otherButtons      其他按钮
*  @param clickAtIndex      获取点击信息的block(进入block中的对象请用weak修饰,否则会导致被block持有)
*
*  @return AlertView对象
*/
+ (UIAlertView *)showAlertViewWithTitle:(NSString *)title
message:(NSString *)message
cancelButtonTitle:(NSString *)cancelButtonTitle
otherButtonTitles:(NSArray *)otherButtons
clickAtIndex:(ClickAtIndexBlock)clickAtIndex;

/**
*  弹出ActionSheet对话框
*
*  @param view              要显示的view
*  @param title             标题
*  @param cancelButtonTitle 取消按钮
*  @param destructiveButton destructive按钮
*  @param otherButtons      其他按钮
*  @param clickAtIndex      获取点击信息的block(进入block中的对象请用weak修饰,否则会导致被block持有)
*
*  @return ActionSheet对象
*/
+ (UIActionSheet *)showActionSheetInView:(UIView *)view
WithTitle:(NSString *)title
cancelButtonTitle:(NSString *)cancelButtonTitle
destructiveButtonTitle:(NSString *)destructiveButton
otherButtonTitles:(NSArray *)otherButtons
clickAtIndex:(ClickAtIndexBlock)clickAtIndex;

@end

//
//  UIInfomationView.m
//  Alert
//
//  Created by YouXianMing on 15/6/23.
//  Copyright (c) 2015年 YouXianMing. All rights reserved.
//

#import "UIInfomationView.h"
#import <UIKit/UIKit.h>

/**
*  让类方法中的对象被持有
*/
static ClickAtIndexBlock _clickAtIndexBlock;

@interface UIInfomationView () <UIActionSheetDelegate, UIAlertViewDelegate>

@end

@implementation UIInfomationView

+ (UIAlertView *)showAlertViewWithTitle:(NSString *)title
message:(NSString *)message
cancelButtonTitle:(NSString *)cancelButtonTitle
otherButtonTitles:(NSArray *)otherButtons
clickAtIndex:(ClickAtIndexBlock)clickAtIndex {

_clickAtIndexBlock = [clickAtIndex copy];

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title
message:message
delegate:self
cancelButtonTitle:cancelButtonTitle
otherButtonTitles:nil];

for(NSString *buttonTitle in otherButtons) {
[alert addButtonWithTitle:buttonTitle];
}

[alert show];
return alert;
}

+ (UIActionSheet *)showActionSheetInView:(UIView *)view
WithTitle:(NSString *)title
cancelButtonTitle:(NSString *)cancelButtonTitle
destructiveButtonTitle:(NSString *)destructiveButton
otherButtonTitles:(NSArray *)otherButtons
clickAtIndex:(ClickAtIndexBlock)clickAtIndex {

_clickAtIndexBlock = [clickAtIndex copy];

UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:title
delegate:[self self]
cancelButtonTitle:cancelButtonTitle
destructiveButtonTitle:destructiveButton
otherButtonTitles:nil];

for(NSString *buttonTitle in otherButtons) {
[sheet addButtonWithTitle:buttonTitle];
}

[sheet showInView:view];
return sheet;
}

#pragma mark - alertView代理
+ (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {

_clickAtIndexBlock(buttonIndex);
}

+ (void)alertView:(UIAlertView*)alertView didDismissWithButtonIndex:(NSInteger) buttonIndex {

_clickAtIndexBlock = nil;
}

#pragma mark - actionSheetView代理
+ (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {

_clickAtIndexBlock(buttonIndex);
}

+ (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {

_clickAtIndexBlock = nil;
}

@end