ios 屏幕旋转，横屏竖屏

来源：互联网发布：手机淘宝取消不了退款编辑：程序博客网时间：2024/05/22 10:45

最近做了一点关于屏幕旋转的东西，第一次做，搞的焦头烂额，所幸在同事的帮助下完成了，现在记录一下，便于以后查看。

1.首先需要在General里，Deployment info 里根据自己的需求设置Device Orientation。

Portrait代表竖屏Landscape代表横屏

2.如果是想要自动根据手机的方向横竖屏的话设置下面两个方法

- (BOOL)shouldAutorotate
{
return YES;
}

- (NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskAll;
}

3如果想手动控制横竖屏，就用下面的方法

添加按钮的方法

[UIDevice currentDevice] orientation]可以取到当前屏幕的方向

if ([[UIDevice currentDevice] orientation] == UIInterfaceOrientationPortrait)
{

[self setfullScreen];

}

if ([[UIDevice currentDevice] orientation] == UIInterfaceOrientationLandscapeLeft)
{

[self setsmallScreen];

}

//横屏

- (void)setfullScreen
{
[[UIDevice currentDevice] setValue:[NSNumber numberWithInt:UIInterfaceOrientationLandscapeRight] forKey:@"orientation"];
}

//竖屏

- (void)setsmallScreen
{
[[UIDevice currentDevice] setValue:[NSNumber numberWithInt:UIInterfaceOrientationPortrait] forKey:@"orientation"];
}

然后旋转后的frame需要根据自己需要设置

还有一种横屏方法为强制横屏，在view上添加一个window，然后把window强制旋转，但是这样做键盘还是竖屏，可以根据需要选择

下面直接上方法

- (void)setLandScapeViewWithOrientation:(UIDeviceOrientation)orientnation
{
    if (UIDeviceOrientationIsLandscape(orientnation)) {
        if (_landScapeWindow == nil) {
            CGRect screenFrame = [UIScreen mainScreen].bounds;
            _landScapeWindow = [[UIWindow alloc] initWithFrame:CGRectMake(screenFrame.size.width/2 - screenFrame.size.height/2, screenFrame.size.height/2 - screenFrame.size.width/2, screenFrame.size.height, screenFrame.size.width)];
            _landScapeWindow.windowLevel = UIWindowLevelStatusBar + 1;
            _landScapeWindow.center = CGPointMake(screenFrame.size.width/2, screenFrame.size.height/2);
        CGFloat angle = M_PI_2;
        if (orientnation == UIDeviceOrientationLandscapeRight) {
            angle = M_PI_2 + M_PI;
        }
        _landScapeWindow.transform = CGAffineTransformIdentity;
        _landScapeWindow.transform = CGAffineTransformMakeRotation(angle);
        _landScapeWindow.hidden = NO;

    } else if (UIDeviceOrientationIsPortrait(orientnation)) {
        _landScapeWindow.hidden = YES;
    }
    }
}

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