iPhone + CGAffineTransFormRotate(pi/2)+ statusBarHidden:YES + presentModalViewController = 20像素的空白区域

Question

我认为标题非常具有描述性:

我在一个视图上执行所有这三个操作,结果是屏幕左侧有20个像素的空白区域(如果持有iPhone是landscapeLeft).

我尝试通过执行CGAffineTransFormTranslate来修复它(变换,-20,0)

这只是"滑动"空白下面的视图.

这开始感觉像一个bug,其他人都有这个问题？

澄清一点,我不是在转动任何观点.我正在感知设备的方向:

[[UIDevice currentDevice] orientation]

如果设备(不是界面)处于横向,那么:

[navigationController presentModalViewController:NewView animated:NO]

转换是在显示之前将我的视图(在IB中创建)旋转到横向.

我的转换代码:

    CGRect myFrame = CGRectMake(0, 0, 480, 320);
    CGAffineTransform transform = [[self.myPeriodicTableViewController view] transform];
    transform = CGAffineTransformRotate(transform, degreesToRadians(rotationDirection * 90));
    transform =  CGAffineTransformTranslate(transform, -20, 0);
    [[self.myPeriodicTableViewController view] setFrame: myFrame];
    CGPoint center = CGPointMake(myFrame.size.height/2.0, myFrame.size.width/2.0);
    [[self.myPeriodicTableViewController view] setTransform: transform];
    [[self.myPeriodicTableViewController view] setCenter: center];

Answer 1

我想你可能需要重新进入你的中心:

// Set the center point of the view to the center point of the window's content area.      
self.view.center = CGPointMake(160.0, 240.0);

这是我用于横向视图的整个init方法,并且没有问题.只需确保将笔尖设置为正确的尺寸.

// Implement viewDidLoad to do additional setup after loading the view.
- (void)viewDidLoad {
  [super viewDidLoad];

  // Rotate to landscape
  self.view.frame = CGRectMake(0, 0, 480.0, 320.0);
  if ([[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeRight) {
    CGAffineTransform transform = self.view.transform;

    // Set the center point of the view to the center point of the window's content area.      
    self.view.center = CGPointMake(160.0, 240.0);

    // Rotate the view 90 degrees around its new center point.
    transform = CGAffineTransformRotate(transform, (M_PI / 2.0));
    self.view.transform = transform;
  }
}