ios应用的升级更新提醒和评分提醒

直接上代码：

AppVersionManage.h

//
//  AppVersionManage.h
//  textNav
//
//  Created by wxxu on 14/12/18.
//  Copyright (c) 2014年 wxxu. All rights reserved.
//  app版本管理

#import 

@interface AppVersionManage : NSObject

+ (AppVersionManage *)sharedAppVersionManage;
- (void)appUpdate:(NSString *)appId;    //更新
- (void)appScore:(NSString *)appid;     //评分
@end

AppVersionManage.m

//
//  AppVersionManage.m
//  textNav
//
//  Created by wxxu on 14/12/18.
//  Copyright (c) 2014年 wxxu. All rights reserved.
//

#import 
#import "AppVersionManage.h"

@implementation AppVersionManage
{
    NSString *_appId;            //app的id
    NSString *_trackViewUrl;     //app的地址
}

static AppVersionManage *appVersionManage;
+ (AppVersionManage *)sharedAppVersionManage
{
    @synchronized(self)
    {
        if (appVersionManage == nil) {
            appVersionManage = [[self alloc] init];
        }
        
        return appVersionManage;
    }
}

#pragma mark 升级
- (void)appUpdate:(NSString *)appId
{
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        _appId = appId;
        //http://itunes.apple.com/lookup?id=xx
        
        //根据appid从苹果服务器上得到json数据,再从json数据中得到版本信息
        NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
        // 设置URL
        [request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://itunes.apple.com/lookup?id=%@",_appId]]];
        // 设置HTTP方法
        [request setHTTPMethod:@"GET"];
        // 发送同步請求, 這裡得returnData就是返回得數據楽
        NSData *returnData = [NSURLConnection sendSynchronousRequest:request    returningResponse:nil error:nil];
        
        NSDictionary *jsonData = [NSJSONSerialization JSONObjectWithData:returnData options:0 error:nil];
        //    NSLog(@"%@",jsonData);
        
        NSArray *infoArray = [jsonData objectForKey:@"results"];
        if (infoArray.count != 0) {
            NSDictionary *releaseInfo = [infoArray objectAtIndex:0];
            NSString *latestVersion = [releaseInfo objectForKey:@"version"];
            NSString *trackViewUrl = [releaseInfo objectForKey:@"trackViewUrl"];//地址trackViewUrl
            _trackViewUrl = trackViewUrl; //地址
            double doubleUpdateVersion = [latestVersion doubleValue];
            
            //获取当前version版本信息
            //当前运行程序的版本信息，可以在 mainBundle 里面获取：
            NSDictionary *infoDict = [[NSBundle mainBundle] infoDictionary];
            NSString *currentVersion = [infoDict objectForKey:@"CFBundleVersion"];
            double doubleCurrentVersion = [currentVersion doubleValue];
            NSLog(@"doubleCurrentVersion:%f,%f",doubleCurrentVersion,doubleUpdateVersion);
            
            if (doubleCurrentVersion < doubleUpdateVersion) {
                
                dispatch_async(dispatch_get_main_queue(), ^{
                    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"app应用名称"
                                                                    message:@"有新版本，是否升级！"
                                                                   delegate: self
                                                          cancelButtonTitle:@"取消"
                                                          otherButtonTitles: @"升级", nil];
                    alert.tag = 20141;
                    [alert show];
                });
            }
            
        }else{
            //无此应用
        }
    });
}

#pragma mark 评分
- (void)appScore:(NSString *)appid
{
    _appId = appid;
    BOOL neverGrade = [[[NSUserDefaults standardUserDefaults] objectForKey:@"neverGrade"] boolValue];
    if(neverGrade != YES) {
        //提醒评分
        UIAlertView *alert;
        alert = [[UIAlertView alloc] initWithTitle:@"app应用名称"
                                           message:@"请去appstore给我们评分"
                                          delegate: self
                                 cancelButtonTitle:@"取消"
                                 otherButtonTitles: @"现在去",@"不再提醒 ", nil];
        alert.tag = 20142;
        [alert show];
    }
}

#pragma mark 升级 评分点击
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex == alertView.cancelButtonIndex) return;
    
    switch (alertView.tag) {
        case 20142:
        {
            //评分
            // Never Review Button
            if (buttonIndex == 2)
            {
                NSString *number = [NSString stringWithFormat:@"%d", YES];
                [[NSUserDefaults standardUserDefaults] setObject:number forKey:@"neverGrade"];
                [[NSUserDefaults standardUserDefaults] synchronize];
            }
            // Review Button
            else if (buttonIndex == 1)
            {
                NSString *number = [NSString stringWithFormat:@"%d", YES];
                [[NSUserDefaults standardUserDefaults] setObject:number forKey:@"neverGrade"];
                [[NSUserDefaults standardUserDefaults] synchronize];
                
                //"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=
                NSString *str = [NSString stringWithFormat:
                                 @"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=%@",
                                 _appId ];
                
                [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];
            }
        }
            break;
        case 20141:
        {
            //升级
            if (buttonIndex == 1) {
                [[UIApplication sharedApplication] openURL:[NSURL URLWithString:_trackViewUrl]];
                
            }
        }
            break;
        default:
            break;
    }
    
}
@end

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