IOS8 AlertView和ActionSheet不兼容问题解决方案
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IOS8 AlertView和ActionSheet不兼容问题解决方案
泊竹 发表于3年前
IOS8 AlertView和ActionSheet不兼容问题解决方案
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摘要: IOS8 后,AlertView和ActionSheet被合并了,替代者是AlertController。将原来的delegate方式更换为block方法。这样,需要多版本适配的项目就悲剧了。我封装了一个通用类,用于解决这个问题。

具体代码附文末。先演示一下怎么使用。

AlertView的情况

- (void)creatAlertView
{
    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"title" message:@"message" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
    [alertView show];
}

#pragma mark UIAlertViewDelegate
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    switch (buttonIndex) {
        case 0:
            
            break;
        case 1:
            
            break;
            
        default:
            break;
    }
}

#pragma mark Use NewObject(AlertView)
- (void)creatAlertView
{
    BOAlertController *alertView = [[BOAlertController alloc] initWithTitle:@"title" message:@"message" viewController:self];
    
    RIButtonItem *cancelItem = [RIButtonItem itemWithLabel:@"取消" action:^{
        
    }];
    [alertView addButton:cancelItem type:RIButtonItemType_Cancel];
    
    RIButtonItem *okItem = [RIButtonItem itemWithLabel:@"确定" action:^{
        
    }];
    [alertView addButton:okItem type:RIButtonItemType_Destructive];
    [alertView show];
}

ActionSheet的情况

- (void)creatActionSheet
{
    UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"title" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"确定" otherButtonTitles:@"其它功能", nil];
    [actionSheet showInView:self.view];
}

#pragma mark UIActionSheetDelegate
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    switch (buttonIndex) {
        case 0:
            
            break;
        case 1:
            
            break;
            
        default:
            break;
    }
}

#pragma mark Use NewObject(ActionSheet)
- (void)creatActionSheet
{
    BOAlertController *actionSheet = [[BOAlertController alloc] initWithTitle:@"title" message:nil viewController:self];
    
    RIButtonItem *cancelItem = [RIButtonItem itemWithLabel:@"取消" action:^{
        
    }];
    [actionSheet addButton:cancelItem type:RIButtonItemType_Cancel];
    
    RIButtonItem *okItem = [RIButtonItem itemWithLabel:@"确定" action:^{
        
    }];
    [actionSheet addButton:okItem type:RIButtonItemType_Destructive];
    
    [actionSheet showInView:self.view];
}


使用这个封装类需要扩展类UIAlertView-Blocks的支持。下载地址https://github.com/jivadevoe/UIAlertView-Blocks


封装类代码

//  Created by 孙俊 on 14-9-25.
//  Copyright (c) 2014年 yipinapp.ibrand. All rights reserved.
//

typedef enum {
    RIButtonItemType_Cancel         = 1,
    RIButtonItemType_Destructive       ,
    RIButtonItemType_Other
}RIButtonItemType;

typedef enum {
    BOAlertControllerType_AlertView    = 1,
    BOAlertControllerType_ActionSheet
}BOAlertControllerType;

#define isIOS8  ([[[UIDevice currentDevice]systemVersion]floatValue]>=8)

#import <Foundation/Foundation.h>
#import "RIButtonItem.h"

@interface BOAlertController : NSObject

- (id)initWithTitle:(NSString *)title message:(NSString *)message viewController:(UIViewController *)inViewController;
- (void)addButton:(RIButtonItem *)button type:(RIButtonItemType)itemType;

//Show ActionSheet in all versions
- (void)showInView:(UIView *)view;

//Show AlertView in all versions
- (void)show;

@end

#import "BOAlertController.h"
#import "UIActionSheet+Blocks.h"
#import "UIAlertView+Blocks.h"

@interface BOAlertController()

@property (nonatomic, strong) NSString              *title;
@property (nonatomic, strong) NSString              *message;
@property (nonatomic, weak) UIViewController        *inViewController;
@property (nonatomic, strong) NSMutableDictionary   *buttonInfoDict;

@end

@implementation BOAlertController

- (id)initWithTitle:(NSString *)title message:(NSString *)message viewController:(UIViewController *)inViewController
{
    if (self = [super init]) {
        self.title = title;
        self.message = message;
        self.inViewController = inViewController;
    }
    return self;
}

- (NSMutableDictionary *)buttonInfoDict
{
    if (_buttonInfoDict == nil) {
        _buttonInfoDict = [NSMutableDictionary dictionary];
    }
    return _buttonInfoDict;
}

- (void)addButton:(RIButtonItem *)button type:(RIButtonItemType)itemType
{
    if (button == nil || ![button isKindOfClass:[RIButtonItem class]]) {
        return;
    }
    switch (itemType) {
        case RIButtonItemType_Cancel:
        {
            [self.buttonInfoDict setObject:button forKey:@"RIButtonItemType_Cancel"];
        }
            break;
        case RIButtonItemType_Destructive:
        {
            [self.buttonInfoDict setObject:button forKey:@"RIButtonItemType_Destructive"];
        }
            break;
        case RIButtonItemType_Other:
        {
            NSMutableArray *otherArray = self.buttonInfoDict[@"RIButtonItemType_Other"];
            if (otherArray == nil) {
                otherArray = [NSMutableArray array];
            }
            [otherArray addObject:button];
            [self.buttonInfoDict setObject:otherArray forKey:@"RIButtonItemType_Other"];
        }
            break;
            
        default:
            break;
    }
}

- (void)showInView:(UIView *)view
{
    if (isIOS8) {
        [self showIOS8ViewWithType:BOAlertControllerType_ActionSheet];
        
    } else {
        [self ios7showInView:view];
    }
}

- (void)show
{
    if (isIOS8) {
        [self showIOS8ViewWithType:BOAlertControllerType_AlertView];
        
    } else {
        [self ios7Show];
    }
}

- (void)showIOS8ViewWithType:(BOAlertControllerType)viewType
{
    if (self.inViewController == nil) {
        return;
    }
    
    UIAlertController *alertController = nil;
    switch (viewType) {
        case BOAlertControllerType_AlertView:
        {
            alertController = [UIAlertController alertControllerWithTitle:self.title message:self.message preferredStyle:UIAlertControllerStyleAlert];
        }
            break;
        case BOAlertControllerType_ActionSheet:
        {
            alertController = [UIAlertController alertControllerWithTitle:self.title message:self.message preferredStyle:UIAlertControllerStyleActionSheet];
        }
            break;
            
        default:
            break;
    }
    
    RIButtonItem *cancelItem = self.buttonInfoDict[@"RIButtonItemType_Cancel"];
    if (cancelItem != nil) {
        UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:cancelItem.label style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
            cancelItem.action();
        }];
        [alertController addAction:cancelAction];
    }
    
    RIButtonItem *destructiveItem = self.buttonInfoDict[@"RIButtonItemType_Destructive"];
    if (destructiveItem != nil) {
        UIAlertAction *destructiveAction = [UIAlertAction actionWithTitle:destructiveItem.label style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
            destructiveItem.action();
        }];
        [alertController addAction:destructiveAction];
    }
    
    NSArray *otherItems = self.buttonInfoDict[@"RIButtonItemType_Other"];
    if (otherItems != nil && otherItems.count > 0) {
        for (RIButtonItem *buttonItem in otherItems) {
            UIAlertAction *otherAction = [UIAlertAction actionWithTitle:buttonItem.label style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
                buttonItem.action();
            }];
            [alertController addAction:otherAction];
        }
    }
    
    [self.inViewController presentViewController:alertController animated:YES completion:nil];
}

- (void)ios7showInView:(UIView *)view
{
    
    UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:self.title cancelButtonItem:self.buttonInfoDict[@"RIButtonItemType_Cancel"] destructiveButtonItem:self.buttonInfoDict[@"RIButtonItemType_Destructive"] otherButtonItems: nil];
    
    NSArray *otherItems = self.buttonInfoDict[@"RIButtonItemType_Other"];
    if (otherItems != nil && otherItems.count > 0) {
        for (RIButtonItem *buttonItem in otherItems) {
            [actionSheet addButtonItem:buttonItem];
        }
    }
    [actionSheet showInView:view];
}

- (void)ios7Show
{
    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:self.title message:self.message cancelButtonItem:self.buttonInfoDict[@"RIButtonItemType_Cancel"] otherButtonItems:nil];
    
    RIButtonItem *destructiveItem = self.buttonInfoDict[@"RIButtonItemType_Destructive"];
    if (destructiveItem != nil) {
        [alertView addButtonItem:destructiveItem];
    }
    
    NSArray *otherItems = self.buttonInfoDict[@"RIButtonItemType_Other"];
    if (otherItems != nil && otherItems.count > 0) {
        for (RIButtonItem *buttonItem in otherItems) {
            [alertView addButtonItem:buttonItem];
        }
    }
    
    [alertView show];
}

@end


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