IOS基础知识记录七(iphone手机横屏、竖屏)

来源：互联网发布：mac打开文件夹很慢编辑：程序博客网时间：2024/04/30 18:35

iphone手机旋转屏幕时,对视图进行切换
如：iPhone手机 Music在纵向模式和横向模式显显示播放列表方式的差异

1.创建Simple View Application一个项目
然后在添加一个UIView 标签设置为 landscape view.而默认的view设置为portrait view
把新加的view 托放到和View Controller同一级

2.然后编辑portrait View 在里面设置布局和样式，设置后把portrait View 托到View Controller 同一级，把landscape View拖放到View Controller下。开始编辑landscape View

3.编辑成功后，可以设置该两个view里面公共的属性和方法

4.在ViewController里面设置两个视图进行切换。如：

//首先在ViewController.m里面加入常量定义#define CRotate  (3.1415926/180.0)//改方法在切换屏幕时, 进行调用-(void) willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {        [super willRotateToInterfaceOrientation:toInterfaceOrientation                                   duration:duration];        if (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight) {        self.view = landscapeView;        self.view.transform = CGAffineTransformMakeRotation(CRotate*90);        self.view.bounds = CGRectMake(0, 0, 480, 300);            }else if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft) {        self.view = landscapeView;        self.view.transform = CGAffineTransformMakeRotation(CRotate*(-90));        self.view.bounds = CGRectMake(0, 0, 480, 300);            }else if (toInterfaceOrientation == UIInterfaceOrientationPortrait) {        self.view = portraitView;        self.view.transform = CGAffineTransformMakeRotation(0);        self.view.bounds = CGRectMake(0, 0, 320, 460);      }}

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