自己整理的IOS网络检测和版本检测代码

要导入的头文件

#import "Reachability.h"

网络检测代码段 

    BOOL isExistenceNetwork;

Reachability *r = [ReachabilityreachabilityWithHostName:@"www.apple.com"];

    switch ([rcurrentReachabilityStatus]) {

        caseNotReachable:

isExistenceNetwork=FALSE;

           break;

        caseReachableViaWWAN:

isExistenceNetwork=TRUE;

           break;

        caseReachableViaWiFi:

isExistenceNetwork=TRUE;

           break;

    }

if (!isExistenceNetwork) {

UIAlertView *myalert = [[UIAlertViewalloc] initWithTitle:@"网络连接不佳" message:@"请检查网络连接，并重启程序" delegate:self cancelButtonTitle:@"确认"otherButtonTitles:nil,nil];

        myalert.delegate =self;

        myalert.tag =2;

[myalertshow];

[myalertrelease];

       return YES;

        

}

版本检测代码段

if(AppVersion < version){

           NSString *prompt = [NSStringstringWithFormat:@"IBMUnixWorld已更新到%1.1f版本",version];

            UIAlertView *av=[[[UIAlertViewalloc] initWithTitle:@"版本更新" message:prompt delegate:selfcancelButtonTitle:@"否"otherButtonTitles:@"是",nil] autorelease];

            av.tag =1;

            [avshow];

        }

//alertViewDelegate

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

    //NSLog(@"clickedButtonAtIndex %d",buttonIndex);

   if(alertView.tag ==1){

       if(buttonIndex == 1){

            NSLog(@"appStoreLinkURL %@",appStoreLinkURL);

           NSString *appURL = appStoreLinkURL;

            [[UIApplicationsharedApplication] openURL:[NSURLURLWithString:appURL]];

        }

    }elseif(alertView.tag ==2){

       exit(1);

    }

}