iOS子线程操作检测版本更新，有新版本通知用户更新, CheckVersion

iOS子线程操作检测版本更新，有新版本通知用户更新 CheckVersion

一：如何使用：

#import "CheckVersion.h"

    //输入你的app在appStore的 id
    [CheckVersion check_APP_UPDATE_WITH_APPID:@""];

上述代码写完就可以了，当用户打开app检测到新版本时，为通知用户，更新，并显示最新版本的更新内容；

二：CheckVersion 类

//
//  CheckVersion.h
//  TopProgressView
//
//  Created by cocoajin on 14-1-20.
//  Copyright (c) 2014年 www.zhgu.net. All rights reserved.
//

#import <Foundation/Foundation.h>

extern NSString const *iTnuesApi;

@interface CheckVersion : NSObject

//+ (instancetype)check;

+ (NSString *)check_LocalApp_Version;

+ (void )check_APP_UPDATE_WITH_APPID:(NSString *)appid;

@end

//
//  CheckVersion.m
//  TopProgressView
//
//  Created by cocoajin on 14-1-20.
//  Copyright (c) 2014年 www.zhgu.net. All rights reserved.
//

#import "CheckVersion.h"

NSString const *iTnuesApi = @"http://itunes.apple.com/lookup";

#define kTestApp @"http://itunes.apple.com/lookup?id=350962117"  //新浪微博 app测试

@implementation CheckVersion

+ (instancetype)check
{
    static CheckVersion *check = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        check = [[CheckVersion alloc]init];
    });

    return check;
}

+ (NSString *)check_LocalApp_Version;
{
    NSString *localVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"];

    return localVersion;
}

+ (void )check_APP_UPDATE_WITH_APPID:(NSString *)appid
{
    __block id JSON = nil;
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, ), ^{
        NSError *dataError = nil;
        NSString *appURLAPI = [NSString stringWithFormat:@"%@?id=%@",iTnuesApi,appid];
        NSData *appData = [NSData dataWithContentsOfURL:[NSURL URLWithString:appURLAPI] options: error:&dataError];
        if (dataError) {
            //NSLog(@"appStore app版本信息请求错误！请重新尝试");
            [self showAlertWithMessage:@"appStore app版本信息请求错误！请重新尝试"];
            return ;
        }
        JSON = [NSJSONSerialization JSONObjectWithData:appData options: error:nil];
        //NSLog(@"ddd : %@",JSON);

        if ([[JSON objectForKey:@"resultCount"] intValue] > ) {
            NSString *remoteVersion = [[[JSON objectForKey:@"results"] objectAtIndex:] objectForKey:@"version"];
            NSString *releaseNotes = [[[JSON objectForKey:@"results"] objectAtIndex:] objectForKey:@"releaseNotes"];
            NSString *trackURL = [[[JSON objectForKey:@"results"] objectAtIndex:] objectForKey:@"trackViewUrl"];
            [[NSUserDefaults standardUserDefaults] setObject:trackURL forKey:@"KK_THE_APP_UPDATE_URL"];
            //NSLog(@"%@ %@ %@",remoteVersion,releaseNotes,trackURL);

            NSString *localVersion = [self check_LocalApp_Version];

            if ([remoteVersion floatValue] > [localVersion floatValue]) {
                [[CheckVersion check] newVersionUpdate:remoteVersion notes:releaseNotes];
            }
            else
            {
                return;
            }

        }
        else
        {
            //NSLog(@"appStore 无app信息，请检查您的 app id");
            [self showAlertWithMessage:@"appStore 无此app信息，请检查您的 app id"];
            return ;
        }

    });

}

+ (void)showAlertWithMessage:(NSString *)messages
{
    dispatch_async(dispatch_get_main_queue(), ^{
        UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"版本更新提示" message:messages delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];
        [alert show];

#if !__has_feature(objc_arc)
        [alert release];
#endif
    });

}

- (void)newVersionUpdate:(NSString *)version notes:(NSString *)releaseNotes
{
    dispatch_async(dispatch_get_main_queue(), ^{
        UIAlertView *alert = [[UIAlertView alloc]initWithTitle:[NSString stringWithFormat:@"新版本 %@",version] message:releaseNotes delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"更新", nil];
        [alert show];

#if !__has_feature(objc_arc)
        [alert release];
#endif
    });
}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex==) {
        //NSString *apiUrl = @"https://itunes.apple.com/us/app/wei-bo/id350962117?mt=8&uo=4";
        //apiUrl = @"itms-apps://itunes.apple.com/cn/app/wei-bo/id350962117?mt=8";
        NSString *theAppURL = [[NSUserDefaults standardUserDefaults] objectForKey:@"KK_THE_APP_UPDATE_URL"];
        NSURL *appStoreURL = [NSURL URLWithString:theAppURL];
        [[UIApplication sharedApplication] openURL:appStoreURL];
    }
}
@end