Question

我有两个视图命名它有纵向和横向，在旋转我想切换视图。但是在加载时它工作正常但旋转它不工作。请给我打电话来解决这个问题

 -(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    if (toInterfaceOrientation == UIInterfaceOrientationPortrait || toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) 
    {
        self.view = self.portrait;    
    }
    else
    {
        self.view = self.landscape;
    }
}

Answer 1

您必须实施

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

在MainViewController类中运行，以使自动旋转工作。在参考文献中查找：Reference Documentation on ViewControllers

你可以简单地说（支持所有方向）：

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    return YES;
}

Answer 2

假设您在项目设置中设置了支持的方向，则可以执行以下操作：

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    return YES;
}

添加此项将为视图控制器提供实际影响willRotateToInterfaceOrientation中所做更改的权限。

另外，尝试使用此代码在视图之间切换：

-(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation 
    duration:(NSTimeInterval)duration {
    if (toInterfaceOrientation == UIInterfaceOrientationPortrait || 
        toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) {
        [UIView transitionFromView:self.view
                        toView:self.portrait
                      duration:0.7 
                       options:UIViewAnimationOptionTransitionFlipFromLeft   
                    completion:^(BOOL finished){
                        //do something when done with animation
                      }]; 
    } else {
        [UIView transitionFromView:self.view
                        toView:self.landscape
                      duration:0.7 
                       options:UIViewAnimationOptionTransitionFlipFromLeft   
                    completion:^(BOOL finished){
                        //do something when done with animation
                      }];
    }
}

在视图之间切换

2 个答案: