Diseño de múltiples vistas en NSScrollView usando Visual AutoLayout

Question

Apr 08, 2015, 10:19 PM

objective-c macos autolayout nsscrollview nsview

Diseño de múltiples vistas en NSScrollView usando Visual AutoLayout

Necesito mostrar múltiples vistas alineadas verticalmente dentroNSScrollViewEmpecé agregandoNSTableView yNSButton. Los alineé verticalmente conNSTableView encima yNSButton en la parte inferior yo añadíNSTableview yNSButton a unaNSView llamadotempView. Y luego configure la vista de documento deNSScrollView atempView.

Pero el problema que tengo es que mi vista de tabla no se expande correctamente. Veo los botones correctamente, pero tablview no se expande correctamente y solo muestra las últimas entradas que caben en la tabla. Como puede ver en la siguiente imagen, muestra las últimas 4 filas de 20 filas.

-(void)setupView {
    _scrollView = [[NSScrollView alloc] init];
    [_scrollView setHasVerticalScroller:YES];
    [_scrollView setHasVerticalRuler:YES];
    [_scrollView setBorderType:NSBezelBorder];
    [_scrollView setBackgroundColor:[NSColor purpleColor]];
         _scrollView.autoresizingMask = NSViewHeightSizable;

    _tableView = [[NSTableView alloc] init];
    [_tableView setDataSource:self];
    [_tableView setHeaderView:nil];
    [_tableView addTableColumn:[[NSTableColumn alloc] initWithIdentifier:@"firstColumn"]];
    [_tableView setDelegate:self];
    [_tableView setColumnAutoresizingStyle:NSTableViewUniformColumnAutoresizingStyle];
    [_tableView setBackgroundColor:[NSColor greenColor]];

    NSButton* _button = [[NSButton alloc] initWithFrame:NSZeroRect];
    NSView* tempView = [[NSView alloc] initWithFrame:NSZeroRect];

    [tempView setTranslatesAutoresizingMaskIntoConstraints:NO];
    [_scrollView setTranslatesAutoresizingMaskIntoConstraints:NO];
    [_button setTranslatesAutoresizingMaskIntoConstraints:NO];
    [_tableView setTranslatesAutoresizingMaskIntoConstraints:NO];

    [tempView addSubview:_button];
    [tempView addSubview:_tableView];

    [_scrollView setDocumentView:tempView];
    [self addSubview:_scrollView];


    NSString *const kViewContainerVertical = @"V:|[tempView]|";
    NSString *const kViewContainerHorizontal = @"H:|[tempView]|";

    NSDictionary *viewDictionary = NSDictionaryOfVariableBindings(tempView);

    NSArray *contraintOneView = [NSLayoutConstraint constraintsWithVisualFormat:kViewContainerVertical
                                                                        options:NSLayoutFormatAlignAllLeft
                                                                        metrics:nil
                                                                          views:viewDictionary];

    NSArray *constraintTwoView = [NSLayoutConstraint constraintsWithVisualFormat:kViewContainerHorizontal
                                                                         options:NSLayoutFormatAlignAllLeft
                                                                         metrics:nil
                                                                           views:viewDictionary];


    NSString *const kViewVertical = @"V:|[_tableView]-2-[_button]|";
    NSString *const kTextViewHorizontal = @"H:|[_tableView(_button)]-0-|";
    NSString *const kButtonHorizontal = @"H:|-0-[_button]-0-|";

    NSDictionary *dictionary = NSDictionaryOfVariableBindings(_tableView, _button);

    NSArray *contraintOne = [NSLayoutConstraint constraintsWithVisualFormat:kViewVertical
                                                                    options:NSLayoutFormatAlignAllLeft
                                                                    metrics:nil
                                                                      views:dictionary];

    NSArray *constraintTwo = [NSLayoutConstraint constraintsWithVisualFormat:kTextViewHorizontal
                                                                     options:NSLayoutFormatAlignAllLeft
                                                                     metrics:nil
                                                                       views:dictionary];

    NSArray *constraintThree = [NSLayoutConstraint constraintsWithVisualFormat:kButtonHorizontal
                                                                       options:NSLayoutFormatAlignAllLeft
                                                                       metrics:nil
                                                                         views:dictionary];
    [tempView addConstraints:contraintOne];
    [tempView addConstraints:constraintTwo];
    [tempView addConstraints:constraintThree];

    [_scrollView.contentView addConstraints:contraintOneView];
    [_scrollView.contentView addConstraints:constraintTwoView];


    NSString *const kScrollVertical = @"V:|-0-[_scrollView]-0-|";
    NSString *const kScrollHorizontal = @"H:|-0-[_scrollView]-0-|";

        NSDictionary *scrollDictionary = NSDictionaryOfVariableBindings(_scrollView);

    NSArray *contraintOneScroll = [NSLayoutConstraint constraintsWithVisualFormat:kScrollVertical
                                                                    options:NSLayoutFormatAlignAllLeft
                                                                    metrics:nil
                                                                      views:scrollDictionary];

    NSArray *constraintTwoScroll = [NSLayoutConstraint constraintsWithVisualFormat:kScrollHorizontal
                                                                     options:NSLayoutFormatAlignAllLeft
                                                                     metrics:nil
                                                                       views:scrollDictionary];

    [self addConstraints:contraintOneScroll];
    [self addConstraints:constraintTwoScroll];
}

No entiendo la razón de tal comportamiento.

[_tableView constraintsAffectingLayoutForOrientation:NSLayoutConstraintOrientationVertical]

Devoluciones

<__NSArrayI 0x608000101050>(
<NSContentSizeLayoutConstraint:0x6080000a2520 V:[NSButton:0x608000140c60'Button'(21)] Hug:250 CompressionResistance:750>,
<NSLayoutConstraint:0x608000082620 V:[NSButton:0x608000140c60'Button']-(0)-|   (Names: '|':NSView:0x608000121180 )>,
<NSLayoutConstraint:0x6080000825d0 V:[NSTableView:0x1004032f0]-(2)-[NSButton:0x608000140c60'Button']>,
<NSLayoutConstraint:0x608000082da0 V:|-(0)-[JSFlippedView:0x608000160cc0]   (Names: '|':NSView:0x610000120140 )>,
<NSAutoresizingMaskLayoutConstraint:0x608000081770 h=-&- v=-&- V:|-(1)-[NSClipView:0x100408c20]   (Names: '|':NSScrollView:0x6080001c0000 )>,
<NSLayoutConstraint:0x608000082490 V:[NSView:0x608000121180]-(0)-|   (Names: '|':NSClipView:0x100408c20 )>,
<NSLayoutConstraint:0x6080000828a0 V:[NSScrollView:0x6080001c0000]-(0)-|   (Names: '|':JSFlippedView:0x608000160cc0 )>,
<NSAutoresizingMaskLayoutConstraint:0x608000082fd0 h=-&- v=-&- V:[NSView:0x610000120140]-(0)-|   (Names: '|':NSThemeFrame:0x100403e30'ScrollTest-expand' )>,
<NSLayoutConstraint:0x608000082df0 V:[JSFlippedView:0x608000160cc0]-(0)-|   (Names: '|':NSView:0x610000120140 )>,
<NSLayoutConstraint:0x608000082440 V:|-(0)-[NSView:0x608000121180]   (Names: '|':NSClipView:0x100408c20 )>,
<NSAutoresizingMaskLayoutConstraint:0x608000081540 h=-&- v=-&- V:[NSClipView:0x100408c20]-(1)-|   (Names: '|':NSScrollView:0x6080001c0000 )>,
<NSLayoutConstraint:0x608000082850 V:|-(0)-[NSScrollView:0x6080001c0000]   (Names: '|':JSFlippedView:0x608000160cc0 )>,
<NSAutoresizingMaskLayoutConstraint:0x608000083200 h=-&- v=-&- V:|-(22)-[NSView:0x610000120140]   (Names: '|':NSThemeFrame:0x100403e30'ScrollTest-expand' )>,
<NSLayoutConstraint:0x608000082580 V:|-(0)-[NSTableView:0x1004032f0]   (Names: '|':NSView:0x608000121180 )>,
<NSLayoutConstraint:0x6000000806e0 'NSWindow-current-height' V:[NSThemeFrame:0x100403e30'ScrollTest-expand'(727@500)] priority:500>
)

y_tableView intrinsicContentSize da{-1, -1}.

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