关于IOS屏幕的旋转问题
处理IPhone屏幕的旋转是我们经常遇到的,当你做一个应用既然满足竖屏又要满足横屏,这就要求我们会处理屏幕旋转的问题!
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方法一:自动布局
1.将项目中界面的四种手持方式都点上;
2.取消Use Autolayout;
3.选择界面中某个控件然后到属性工具栏中去找到AutoSizing功能,勾选对应的绝对定位的线条
4.重写可以旋转的方法
-(BOOL)shouldAutorotate { return YES; } -(NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationMaskAll; }
方法二:手动布局一(通过代码改view种控件的坐标)
1.重写可以旋转的方法
-(BOOL)shouldAutorotate { return YES; } -(NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationMaskAll; }2.勾选上项目中支持的四种手持类型
3.取消Use Autolayout
4.代码实现:
//每当屏幕旋转的时候都会触发一个 -(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration { //如果是是横屏状态 if(toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft ) { self.l1.frame = CGRectMake(20, 25, 110, 110); self.l2.frame = CGRectMake(162, 25, 110, 110); self.l3.frame = CGRectMake(304, 25, 110, 110); self.r1.frame = CGRectMake(20, 178, 110, 110); self.r2.frame = CGRectMake(162, 178, 110, 110); self.r3.frame = CGRectMake(304, 178, 110, 110);} }
方法三:手动布局二(在xib中新建一个支持横屏的view通过双view切换实现)
1.在xib文件中拖一个view控件,选择Orientation属性为横屏
2.布局好界面
3.将横纵view分别在controller.h文件中创建对应的属性,命名为
@property (retain, nonatomic)IBOutletUIView *landspaceView;
@property (retain, nonatomic)IBOutletUIView *portatiorView;
4.代码实现宏定义实现角度转弧度
#define degreesToRadia(x) (M_PI * (x) / 180)//参数要加括号 ,尤其是参数附近特别要加括号
-(BOOL)shouldAutorotate { return YES; } -(NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationMaskAll; } //每当屏幕旋转的时候都会触发一个 -(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration { //如果是是横屏状态 if(toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft ) { // self.l1.frame = CGRectMake(20, 25, 110, 110); // self.l2.frame = CGRectMake(162, 25, 110, 110); // self.l3.frame = CGRectMake(304, 25, 110, 110); // self.r1.frame = CGRectMake(20, 178, 110, 110); // self.r2.frame = CGRectMake(162, 178, 110, 110); // self.r3.frame = CGRectMake(304, 178, 110, 110); self.view = self.landspaceView; //self.view.transform = CGAffineTransformIdentity; self.view.transform = CGAffineTransformMakeRotation(degreesToRadia(270)); self.view.bounds = CGRectMake(0, 0, 480, 300); } else if(toInterfaceOrientation == UIInterfaceOrientationLandscapeRight) { // self.l1.frame = CGRectMake(37, 20, 110, 110); // self.l2.frame = CGRectMake(37, 162, 110, 110); // self.l3.frame = CGRectMake(37, 304, 110, 110); // self.r1.frame = CGRectMake(190, 20, 110, 110); // self.r2.frame = CGRectMake(190, 162, 110, 110); // self.r3.frame = CGRectMake(190, 304, 110, 110); self.view = self.landspaceView; //self.view.transform = CGAffineTransformIdentity; self.view.transform = CGAffineTransformMakeRotation(degreesToRadia(90)); self.view.bounds = CGRectMake(0, 0, 480, 300); } else if (toInterfaceOrientation == UIInterfaceOrientationPortrait) { self.view = self.portatiorView; self.view.transform = CGAffineTransformIdentity; self.view.bounds = CGRectMake(0, 0, 320, 460); } else if(toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) { self.view = self.portatiorView; //self.view = self.landspaceView; //self.view.transform = CGAffineTransformIdentity; self.view.transform = CGAffineTransformMakeRotation(degreesToRadia(180)); self.view.bounds = CGRectMake(0, 0, 320, 460); } }
模拟屏幕旋转
commond + 方向键
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