Question

下图描述了该场景。 http://i.stack.imgur.com/PPm4e.png

按下动画按钮时，蓝色屏幕（或容器视图）应远离视图，同样会在压制时返回初始位置。

代码正在运行。但是containerView不像其他视图的子视图那样。它不应该出自浅灰色的视图。这是它的超级视角。它应该在其限度内上下移动。

模拟器屏幕截图如下：

http://i.stack.imgur.com/SJjA5.png

http://i.stack.imgur.com/I98W8.png

非常感谢任何建议。

ViewController.m： -

@interface ViewController ()
{
    BOOL scrollUp;
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    [self.containerBackgroundView addSubview:self.containerview];

    scrollUp = NO;
    [self animate:self];

}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.

}


- (IBAction)animate:(id)sender {

    if (scrollUp) {
        [self rollUpMenuPage];
        scrollUp = NO;
    }
    else
    {
        scrollUp = YES;
        [self unRollTheMenuPage];
    }

}

-(void)unRollTheMenuPage
{

    NSLog(@"containerview frame before unRoll : %@",[self.containerview description]);

    CGRect rect = CGRectMake(self.containerview.frame.origin.x, 0.0f, self.containerview.frame.size.width, self.containerview.frame.size.height);


    [UIView animateWithDuration:1.0f
                     animations:^{

                         self.containerview.frame = rect;
                     }
                     completion:^(BOOL finished){
                         // do something here if you wish.

                         NSLog(@"containerview frame after unRoll : %@",[self.containerview description]);

                     }];

}

-(void)rollUpMenuPage
{

    NSLog(@"containerview frame before roll up : %@",[self.containerview description]);

    CGRect rect = CGRectMake(self.containerview.frame.origin.x, -self.containerBackgroundView.frame.size.height, self.containerview.frame.size.width, self.containerview.frame.size.height);


    [UIView animateWithDuration:1.0f
                     animations:^{
                         self.containerview.frame = rect;
                     }
                     completion:^(BOOL finished){

                         NSLog(@"containerview frame after roll up : %@",[self.containerview description]);

                     }];


}

ViewController.h

@property (weak, nonatomic) IBOutlet UIView *containerBackgroundView;
@property (weak, nonatomic) IBOutlet UIView *containerview;

当前输出： - http://screencast.com/t/bfLmJFYmym4

问题是，当向上移动时，它不应超过浅灰色视图。

由于

Answer 1

在我看来，你已经添加了一个UINavigationBar（或其他一些工具栏）作为UIViewController视图的子视图，而containerBackroundView（透明的bg颜色）位于该栏的顶部。建议你改变containerBackgroundView的frame.origin.y，这样它就不会覆盖那里的顶栏或者在状态栏下方。

Answer 2

好的，在重新创建项目并进行测试之后，你就可以在它的超级视图边界之外绘制视图了。

要撤消此操作，您可以单击后视图中的clip subviews属性，因此当containerView跳出backView边界时，它将被剪切并且不会被绘制

将superView中的containerView作为子视图移动

2 个答案: