如何阻止 mainView 旋转？

Question

我有这段代码，设置为当手机旋转到横向时使时钟视图出现，然后当它返回到纵向时使其返回到主视图。但当它返回纵向时，纵向视图处于横向模式。我该如何解决这个问题？这是我的代码。

-(void)willAnimateRotationToInterfaceOrientation(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    UIInterfaceOrientation toOrientation = self.interfaceOrientation;

    if(toOrientation == UIInterfaceOrientationPortrait)
    {
        self.view = mainView;
    }

    else if(toOrientation == UIInterfaceOrientationLandscapeLeft)
    {
        self.view = clockView;
    }

    else if (toOrientation == UIInterfaceOrientationPortraitUpsideDown)
    {
        self.view = mainView;
    }

    else if(toOrientation == UIInterfaceOrientationLandscapeRight)
    {
        self.view = clockView;
    }
}

Answer 1

将 mainView 和 ClockView 作为视图控制器的子视图可能会更好：

// in viewDidLoad do [self.view addSubView:mainView]; [self.view addSubView:clockView]; clockView.hidden = YES;

-(void)willAnimateRotationToInterfaceOrientation: (UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
    if(UIInterfaceOrientationIsPortrait(toOrientation)) {
        mainView.hidden = NO;
        clockView.hidden = YES;
    }
    else {
        mainView.hidden = YES;
        clockView.hidden = NO;
    }
}

这样，两个视图都会以正确的方式自动旋转，并且您的问题应该消失。