摘要:
方法一:发射信号量 OC —异步顺序加载 先调用A接口,再调用B接口,再调用C接口 dispatch_semaphore_t semaphore = dispatch_semaphore_create(0); 网络A请求 中间写block块的网络请求 dispatch_semaphore_wait( 阅读全文
摘要:
//获取到当前所在的视图 - (UIViewController *)presentingVC:(UIApplication *)application{ UIWindow * window = application.keyWindow; if (window.windowLevel != UIW 阅读全文