macos - NSView 自动调整大小以适应内容视图

Question

CustomView *customView = [[CustomView alloc] init];
[self.window.contentView addSubview:customView];

我怎样才能使窗口调整大小时customView.frame.size.height总是等于contentView.frame.size.height，同时customView.frame.size.width = 20;？

Answer 1

Swift 版本，应用 autoresizingMask：

let customView = CustomView()
customView.autoresizingMask = [.width, .height]
self.window.contentView.addSubview(customView)

参考选项

Answer 2

设置自定义视图的autoresizingMask：

CustomView *customView = [[CustomView alloc] init];
customView.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable;
[self.window.contentView addSubview:customView];