- (void)onReq:(BaseReq*)req { //获取开放标签传递的extinfo数据逻辑 if ([req isKindOfClass:[LaunchFromWXReq class]]) { WXMediaMessage *msg = req.message; NSString *openID = req.openID; NSString *extinfo = req.msg.messageExt; // handle... } }io iOS微信打开第三方应用，opensdk自检通过，热启动可以获取到extinfo打开相应界面。但是冷启动不调用inReq函数，无法获取到extInfo

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