- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    [[FJPayMgr sharedInstance] setWechatAppScheme:@"wxaXXXXXXXX"];
    [[FJPayMgr sharedInstance] setAppScheme:@"schemeXXXXXXXX"];
}

- (BOOL)commonapplication:(UIApplication *)app openURL:(NSURL*)url options:(NSDictionary<UIApplicationOpenURLOptionsKey, id> *)options sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
    return [WXApi handleOpenURL:url delegate:[FJPayMgr sharedInstance]];
}

NSString *orderString = @"body=......&_input_charset=\"utf-8\"&notify_url=......\"RSA\"";
[[FJPayMgr sharedInstance] setAppScheme:@"schemeXXXXXXXX"];
[[FJPayMgr sharedInstance] pay:FJPayType_Alipay weixinPayData:nil alipayOrderString:orderString completion:^(FJPayResult result) {
    NSLog(@"%ld", (long)result);
}];

WechatpayData *paydata = [[WechatpayData alloc] init];
paydata.appid = @"wxaschemeXXXXXXXX";
paydata.partnerid = @"schemeXXXXXXXX";
paydata.package = @"Sign=WXPay";
paydata.noncestr = @"XXXXXXXX";
paydata.sign = @"XXXXXXXX";
paydata.prepayid = @"XXXXXXXX";
paydata.timestamp = 1488851934;
[[FJPayMgr sharedInstance] pay:FJPayType_Wechat weixinPayData:paydata alipayOrderString:nil completion:^(FJPayResult result) {
    NSLog(@"%ld", (long)result);
}];