在NSScrollView中使用NSClipView NSLayoutConstraints

Question

我正在尝试创建一个包含scrollView + clipView + actualView的窗口，该窗口在所有方向上延伸到窗口的大小，但是我无法快速，我是新约束，这是我的代码滚动我在窗口调整大小的实际视图...这是不期望的......

- (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)flag
{
    self = [super initWithContentRect:contentRect styleMask:aStyle backing:bufferingType defer:flag];
if (self)
{
    //Create subviews
    _scrollView = [[DocumentScrollView alloc] initWithFrame:CGRectMake(0, 0, 300, 300)];
    [_scrollView setTranslatesAutoresizingMaskIntoConstraints:NO];

    _clipView = [[NSClipView alloc] initWithFrame:CGRectMake(0, 0, 200, 200)];
    [_clipView setTranslatesAutoresizingMaskIntoConstraints:NO];

    _documentView = [[DocumentView alloc] initWithFrame:CGRectMake(0, 0, 500, 500)];
    [_documentView setTranslatesAutoresizingMaskIntoConstraints:NO];

    //Add views
    [_clipView setDocumentView:_documentView];
    [_clipView addSubview:_documentView];
    [_scrollView addSubview:_clipView];
    [self.contentView addSubview:_scrollView];

    //Configure constraints
    NSDictionary *views = NSDictionaryOfVariableBindings(_documentView, _scrollView, _clipView);

    [_clipView addConstraints:
     [NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_documentView]|"
                                             options:0
                                             metrics:nil
                                               views:views]];

    [_clipView addConstraints:
     [NSLayoutConstraint constraintsWithVisualFormat:@"V:|[_documentView]|"
                                             options:0
                                             metrics:nil
                                               views:views]];


    [_scrollView addConstraints:
     [NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_clipView]|"
                                             options:0
                                             metrics:nil
                                               views:views]];

    [_scrollView addConstraints:
     [NSLayoutConstraint constraintsWithVisualFormat:@"V:|[_clipView]|"
                                             options:0
                                             metrics:nil
                                               views:views]];


    [self.contentView addConstraints:
     [NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_scrollView]|"
                                             options:0
                                             metrics:nil
                                               views:views]];

    [self.contentView addConstraints:
     [NSLayoutConstraint constraintsWithVisualFormat:@"V:|[_scrollView]|"
                                             options:0
                                             metrics:nil
                                               views:views]];

    //[self visualizeConstraints:[_scrollView constraints]];

}
return self;
}

任何人都知道如何使这个工作？

亲切的问候

克里斯