let window:UIWindow = keyWindow() let rect = window.convert(view.frame,f...
注意点,防止动作完成后返回原始点 animationGroup.fillMode = .forwards //要配合使用 forward...
1.打开终端,执行cd Desktop/,cd进入到我们刚才保存的p12文件的保存位置(桌面) 2.openssl pkcs12 -clcert...
//document文件夹路径 #definePATH_AT_Document(name) [[NSSearchPathForDirectori...
//左滑右滑禁用 - (void)viewDidAppear:(BOOL)animated { [superviewDidAppear:an...
1.performSelector 2.NSTimer 3.NSThread线程的sleep 4.GCD 1.performSelector [...
一、NSLock 加锁lock 解锁unlock NSLock *lock = [[NSLock alloc]init]; dispatch...
信号量 dispatch_semaphore_t sem = dispatch_semaphore_create(0); dispatch_se...
方法(1) //左滑事件 - (nullable UISwipeActionsConfiguration *)tableView:(UITabl...