iOS 螢幕旋轉監聽
阿新 • • 發佈：2019-01-06
方法一：通知監聽
//UIApplicationWillChangeStatusBarFrameNotification 將要轉屏 //UIApplicationDidChangeStatusBarFrameNotification 已經轉屏 // 轉屏通知 [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(didChangeRotate:) name:UIApplicationDidChangeStatusBarFrameNotification object:nil]; - (void)didChangeRotate:(NSNotification*)notice { if ([[UIDevice currentDevice] orientation] == UIInterfaceOrientationPortrait || [[UIDevice currentDevice] orientation] == UIInterfaceOrientationPortraitUpsideDown) { //豎屏 } else { //橫屏 } }
2、重寫方法
// 橫豎屏將要切換會呼叫 - (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator { NSLog(@"橫豎屏進行了切換size:%@",NSStringFromCGSize(size)); // 延時一下 獲得的高度才正確，要不然是轉屏前的寬高 dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ }); }