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！
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) IBOutlet UIView *landspaceView;
@property (retain, nonatomic) IBOutlet UIView *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