ios中UIAlertView控件的使用，如何确定点击按钮的方式

- (void)initCheckVersionWithData:(NSData *)data

{

NSData *xmlData = data;

NSString *result = [[NSStringalloc] initWithData:xmlData encoding:NSUTF8StringEncoding];

NSLog(@"result:%@",result);

GetCheckVersion *parser = [[GetCheckVersionalloc] initWithXMLData:xmlData];

[parser parse];

NSString *status = parser.tempResult.status;

NSLog(@"status:%@",status);

if ([@"201" isEqualToString:status]) {

NSLog(@"版本不需要更新，OK");

}

else if ([@"200"isEqualToString:status]) {

UIAlertView * alertview = [[UIAlertViewalloc] initWithTitle:@"提示"message:@"是否更新版本" delegate:selfcancelButtonTitle:@"取消" otherButtonTitles:@"确定",nil];

[alertview show];

[alertview release];

alertview = nil;

}

}

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

{

NSString *msg = [[NSStringalloc] initWithFormat:@"您点击的是第%d个按钮!",buttonIndex];

NSLog(@"msg:%@",msg);

if (buttonIndex == 0) {

return;

}else if(buttonIndex ==1){

[httpClientgetUpdateVersion];

}

}