MAC：NSWindow

目录
  1.1 隐藏标题栏
  1.2 窗口无边界
  1.3 窗口透明
  1.4 背景红色
  1.5 点击背景移动窗口
  1.6 关闭当前window
  1.7 创建新window
  1.8 实现圆角
  1.9 监听窗口大小
  1.10 设置window不可拉伸

1	`1.1 隐藏NSWindow的标题栏`

方法一：
 
(1)重写NSWindow子类，继承NSWindow。
 
- (id)initWithContentRect:(NSRect)contentRect styleMask:(unsignedint)styleMask backing:(NSBackingStoreType)backingType defer:(BOOL)flag{
     
    self = [super initWithContentRect:contentRect styleMask:NSBorderlessWindowMask backing:(NSBackingStoreType)backingType defer:YES];
     
    return self;
     
}
 
（2）xib ViewController 上Window 继承子类
 
方法二：
 
xib中直接取消title Bar 选中

1.2 设置窗口无边界

1	`[self setStyleMask:NSBorderlessWindowMask];`

1.3 设置窗口为透明

1	`[self setOpaque:YES];`

1.4 设置背景红色

1	`[self setBackgroundColor:[NSColor redColor]];`

1.5 设置为点击背景可以移动窗口

1	`[self setMovableByWindowBackground:YES];`


1.6 关闭当前window

1	`[self.view.window close];`

1.7 创建新的window

（1）创建子类WindowController，继承与NSindowController。
 
（2）创建新的Window
 
self.windowController = [[WindowController alloc]initWithWindowNibName:@"WindowController"];
 
[self.windowController showWindow:self];
 
一定要定义成全局的

1.8 NSWindow实现圆角

(1)子类化NSWindow,主要是重载了下面这个函数
 
- (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)flag {
     
    self = [super initWithContentRect:contentRect styleMask:NSBorderlessWindowMask backing: NSBackingStoreBuffered defer:NO];
     
    if (self != nil) {
         
        [self setOpaque:NO];
         
        [self setBackgroundColor:[NSColor clearColor]];
         
    }
     
    return self;
     
}
 
(2)子类化NSWindow的view,重载drawRect，其中的圆角半径和背景颜色 自己可以调整
 
- (void)drawRect:(NSRect)dirtyRect {
     
    [NSGraphicsContext saveGraphicsState];
     
    NSRect rect = [self bounds];
     
    NSBezierPath *path = [NSBezierPath bezierPathWithRoundedRect:rect xRadius:5 yRadius:5];
     
    [path addClip];
     
    [[NSColor controlColor] set];
     
    NSRectFill(dirtyRect);
     
    [NSGraphicsContext restoreGraphicsState];
     
    [super drawRect:dirtyRect];
     
}

1.9 监听window窗口大小

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowDidResize:) name:NSWindowDidResizeNotification object:nil];
 
- (void)windowDidResize:(NSNotification *)notification {
     
    //NSLog(@"notification %@",notification.object);
     
    NSWindow *window = notification.object;
     
    NSLog(@"window %@",NSStringFromRect(window.frame));
     
}