具体支付代码：
//调起微信支付
PayReq* req = [[[PayReq alloc] init]autorelease];
req.openID = APPI_ID;
req.partnerId = PARTNER_ID;
req.prepayId = prePayid;
req.nonceStr = nonce_str;
req.timeStamp = now;
req.package = package;
req.sign = sign;
[WXApi safeSendReq:req];
不得不吐槽，微信支付的SDK，这里连个代理都没有，所以，你想获取支付后的结果的返回信息，需要去AppDelegate里，添加如下代码，添加微信的代理：
- (BOOL)application:(UIApplication )application openURL:(NSURL )url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{
return [WXApi handleOpenURL:url delegate:self];
}
然后，再实现这个方法：
-(void) onResp:(BaseResp*)resp
1
通过这个方法，你就可以获取微信支付后的信息了。但是如果这样，所有的支付代码都在AppDelegate里，不好，至少微信给的例子就是这样。我的方法是添加通知，代码如下：
-(void) onResp:(BaseResp*)resp
{
if ([resp isKindOfClass:[PayResp class]])
{
PayResp response = (PayResp )resp;
// NSString *strTitle = [NSString stringWithFormat:@”支付结果”];
// NSString *strMsg = [NSString stringWithFormat:@”errcode:%d”, response.errCode];
//
// UIAlertView *alert = [[UIAlertView alloc] initWithTitle:strTitle
// message:strMsg
// delegate:self
// cancelButtonTitle:@”OK”
// otherButtonTitles:nil, nil];
// [alert show];
switch (response.errCode) {
case WXSuccess: {
NSNotification *notification = [NSNotification notificationWithName:ORDER_PAY_NOTIFICATION object:@"success"];
[[NSNotificationCenter defaultCenter] postNotification:notification];
break;
}
default: {
NSNotification *notification = [NSNotification notificationWithName:ORDER_PAY_NOTIFICATION object:@"fail"];
[[NSNotificationCenter defaultCenter] postNotification:notification];
break;
}
}
}
}
然后，在支付那个VC，添加通知
pragma mark - tabBar隐藏
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
if([WXApi isWXAppInstalled]) // 判断 用户是否安装微信
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(getOrderPayResult:) name:ORDER_PAY_NOTIFICATION object:nil];//监听一个通知
}
}
pragma mark - tabbar还原
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
[[NSNotificationCenter defaultCenter
