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 = [Reachability
reachabilityWithHostName:@"www.apple.com"];

switch ([r
currentReachabilityStatus]) {

case
NotReachable:
isExistenceNetwork=FALSE;

break;

case
ReachableViaWWAN:
isExistenceNetwork=TRUE;

break;

case
ReachableViaWiFi:
isExistenceNetwork=TRUE;

break;
}
if (!isExistenceNetwork) {
UIAlertView *myalert = [[UIAlertView
alloc] 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;
[myalert
show];
[myalert
release];

return YES;

}

版本检测代码段

if(AppVersion < version){

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

UIAlertView *av=[[[UIAlertView
alloc] initWithTitle:@"版本更新"
message:prompt delegate:self
cancelButtonTitle:@"否"
otherButtonTitles:@"是",
nil]
autorelease];
av.tag =
1;
[av
show];
}

//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;

[[UIApplication
sharedApplication] openURL:[NSURL
URLWithString:appURL]];
}
}else
if(alertView.tag ==
2){

exit(1);
}
}