ios 使用ASIHTTPRequest来检查版本更新

 1 - (void) alertWithTitle: (NSString *)_title_  msg:(NSString *)msg delegate:(id)_delegate cancelButtonTitle:(NSString*)_cancelTitle otherButtonTitles:(NSString*)_otherTitles{

 2     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:_title_

 3                                                     message:msg

 4                                                    delegate:_delegate

 5                                           cancelButtonTitle:_cancelTitle

 6                                           otherButtonTitles:_otherTitles,nil];

 7     [alert show];

 8 }

 9 

10 #pragma mark - update

11 -(void)checkUpdate{

12     MBKAppDelegate *mbkApp = (MBKAppDelegate *)[[UIApplication sharedApplication] delegate];

13     if (![mbkApp networkIsReach]) {

14         return;

15     }

16     

17     NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://itunes.apple.com/lookup?id=%@",kAppId]];

18     ASIHTTPRequest *request =[ASIHTTPRequest requestWithURL:url];   

19     [request setDelegate:self];

20     [request setDidFinishSelector:@selector(requestDone:)];

21     [request setDidFailSelector:@selector(requestWentWrong:)];

22     [request startSynchronous];

23 }

24 

25 #pragma mark - asihttprequest 

26 - (void)requestDone:(ASIHTTPRequest *)request

27 {

28     NSError *err = nil;

29     NSDictionary *dictionary =

30     [[CJSONDeserializer deserializer] deserializeAsDictionary:[request responseData] error:&err];

31     if (err != nil) {

32         [self failure];

33         return;

34     }

35     NSArray *a = [dictionary objectForKey:@"results"];

36     if (a.count == 0) {

37         [self failure];

38         return;

39     }

40     NSDictionary *d = [a objectAtIndex:0];

41     NSString *newVersion = [d objectForKey:@"version"];

42     NSDictionary *infoDict = [[NSBundle mainBundle] infoDictionary];

43     NSString *nowVersion = [infoDict objectForKey:@"CFBundleVersion"];

44     NSString *msg = @"";

45     NSString *cancelTitle = @"";

46     NSString *otherTitles = @"";

47     if(![nowVersion isEqualToString:newVersion])

48     {

49         msg = @"版本有更新";

50         cancelTitle = @"取消";

51         otherTitles = @"更新";

52     }else{        

53         msg = @"已经是最新版本啦";

54         cancelTitle = @"好";

55         otherTitles = nil;

56     }

57     [self alertWithTitle:nil msg:msg delegate:self cancelButtonTitle:cancelTitle otherButtonTitles:otherTitles];

58 }

59 

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

61     if(buttonIndex==1){

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

63         [[UIApplication sharedApplication]openURL:url];

64     }

65 }

66 

67 - (void)requestWentWrong:(ASIHTTPRequest *)request

68 {

69     [self failure];

70 }

71 

72 - (void)failure{    

73     [self alertWithTitle:nil msg:@"检查失败了" delegate:self cancelButtonTitle:@"好" otherButtonTitles:nil];

74 }

转：http://my.oschina.net/brucezcq/blog/148905