摘要: //在视图中运行操作中进行周期操作 - (void)applicationDidEnterBackground:(UIApplication *)application { [self beingBackgroundUpdateTask]; [self endBackgroundUpdateTask 阅读全文
posted @ 2018-01-02 18:31 tryFighting 阅读(262) 评论(0) 推荐(0) 编辑
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
posted @ 2018-01-02 18:00 tryFighting 阅读(801) 评论(0) 推荐(0) 编辑
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
posted @ 2018-01-02 17:48 tryFighting 阅读(185) 评论(0) 推荐(0) 编辑