Can't get View to be drawn in NSScrollView

2019-08-06 11:37发布

I am confused about how to implement a NSScrollView in the most basic way, so I will describe exactly what I do and hope that it is just to late for me to find my error:

  1. Create Xcode project.
  2. Adding a NSScrollView into MainMenu.xib.
  3. Creating new class inherited from NSView with the drawing method:

    (void)drawRect:(NSRect)dirtyRect
    {
    [super drawRect:dirtyRect];
    [[NSColor redColor] set];
    NSRectFill(dirtyRect);
    }
    
  4. Define the view of the NSScrollView to be that new class.

I expected to see a NSScrollView with a red background. Instead, I see the scroll view with no modification.

1条回答
仙女界的扛把子
2楼-- · 2019-08-06 11:51

The problem is auto layout. Turn it off and it will work fine.

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