屏幕旋转的处理方法，实现视图位置的变化

Posted 2020-06-13

1.首先在自定义的视图中重写layoutSubviews方法

- (void)layoutSubviews{

　　UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation ;//获取屏幕的方向，和状态栏是相同的

if (orientation  == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight) {//横向时的位置

self.button.frame = CGRectMake (300,150,200,40);

} else {

　　self.button.frame = CGRectMake(150,150,100,40);

　　}

}

2.在viewController.m文件中

- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<

UIViewControllerTransitionCoordinator

>)coordinator{

　　[self.textField resignFirstResponder];//当屏幕尺寸改变时回收键盘

}

//设置屏幕当前方向

- (NSUInteger)supportedInterfaceOrientation{

　　return UIInterfaceOrientationMaskAll;

}