我的视图控制器仅支持横向。我在主视图中添加了一个白色视图(whiteView - xib 中的 IBOutlet),并在 whiteview 中添加了一个蓝色 CALayer(blueLayer - 类中的属性)。当我在此视图控制器上运行 hitTest 时,它在应用程序窗口右侧的触摸返回不正确的结果,左侧一切正常。即使当前方向是横向,应用程序也好像在纵向模式下运行。在纵向模式下一切正常。
下面是代码。在横向中,每次向右触摸都会返回“在主视图中触摸”。我需要做什么才能使其在横向中正常工作?
- (void)viewDidLoad
{
[super viewDidLoad];
self.blueLayer = [[CALayer alloc] init];
CGRect frame = self.whiteView.frame;
self.blueLayer.frame = CGRectMake(20.0, 20.0, frame.size.width-40.0, frame.size.height - 40.0f);
self.blueLayer.backgroundColor = [UIColor blueColor].CGColor;
[self.whiteView.layer addSublayer:self.blueLayer];
}
- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
CGPoint touchPoint = [[touches anyObject] locationInView:self.view];
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"" message:@"Touch in main view" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
CALayer *touchedLayer = [self.view.layer hitTest:touchPoint];
if(touchedLayer == self.blueLayer){
alertView.message = @"Touch in blue view";
}
else if (touchedLayer == self.whiteView.layer){
alertView.message = @"Touch in white view";
}
else
alertView.message = @"Touch in main view";
[alertView show];
}