#import "ViewController.h"

//1一定要先配置自己项目在商店的APPID,配置完最好在真机上运行才能看到完全效果哦

#define STOREAPPID @"1080182980"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    //一句代码实现检测更新

    [self hsUpdateApp];

}

/**

 *  天朝专用检测app更新

 */

-(void)hsUpdateApp

{

    //2先获取当前工程项目版本号

    NSDictionary *infoDic=[[NSBundle mainBundle] infoDictionary];

    NSString *currentVersion=infoDic[@"CFBundleShortVersionString"];

    //3从网络获取appStore版本号

    NSError *error;

    NSData *response = [NSURLConnection sendSynchronousRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://itunes.apple.com/cn/lookup?id=%@",STOREAPPID]]] returningResponse:nil error:nil];

    if (response == nil) {

        NSLog(@"你没有连接网络哦");

        return;

    }

    NSDictionary *appInfoDic = [NSJSONSerialization JSONObjectWithData:response options:NSJSONReadingMutableLeaves error:&error];

    if (error) {

        NSLog(@"hsUpdateAppError:%@",error);

        return;

    }

    NSArray *array = appInfoDic[@"results"];

    NSDictionary *dic = array[];

    NSString *appStoreVersion = dic[@"version"];

    //打印版本号

    NSLog(@"当前版本号:%@\n商店版本号:%@",currentVersion,appStoreVersion);

    //4当前版本号小于商店版本号,就更新

    if([currentVersion floatValue] < [appStoreVersion floatValue])

    {

        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"版本有更新" message:[NSString stringWithFormat:@"检测到新版本(%@),是否更新?",appStoreVersion] delegate:self cancelButtonTitle:@"取消"otherButtonTitles:@"更新",nil];

        [alert show];

    }else{

        NSLog(@"版本号好像比商店大噢!检测到不需要更新");

    }

}

- (void)alertView:(UIAlertView*)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

{

    //5实现跳转到应用商店进行更新

    if(buttonIndex==)

    {

        //6此处加入应用在app store的地址，方便用户去更新，一种实现方式如下：

        NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"https://itunes.apple.com/us/app/id%@?ls=1&mt=8", STOREAPPID]];

        [[UIApplication sharedApplication] openURL:url];

    }

}

@end