mac悬浮窗_Mac OS 悬浮窗口，并且可以保持在全屏的其他应用上。

最简单的一个方法NSPanel项目下载地址

#import NS_ASSUME_NONNULL_BEGIN

@interface myWindow : NSPanel

@end

NS_ASSUME_NONNULL_END

#import “myWindow.h”

@implementation myWindow

– (instancetype)initWithContentRect:(NSRect)contentRect

styleMask:(NSWindowStyleMask)aStyle

backing:(NSBackingStoreType)bufferingType

defer:(BOOL)flag{

self = [super initWithContentRect:contentRect

styleMask:aStyle

backing:bufferingType

defer:flag];

if (self) {

[self setHasShadow:YES];

[self setOpaque:NO];

[self setBackgroundColor:[NSColor clearColor]];

[self setMovableByWindowBackground:NO];

//注意

[self setLevel:NSScreenSaverWindowLevel];

self.styleMask = NSWindowStyleMaskBorderless | NSWindowStyleMaskNonactivatingPanel;

self.animationBehavior = (CGWindowLevelForKey(NSMainMenuWindowLevel));

//能加入所以活动空间以及在全屏应用上边显示

self.collectionBehavior = NSWindowCollectionBehaviorCanJoinAllSpaces | NSWindowCollectionBehaviorFullScreenAuxiliary;

if (@available(macOS 10.14, *)) {

self.appearance = [NSAppearance appearanceNamed:NSAppearanceNameVibrantLight];

} else {

// Fallback on earlier versions

}

[self invalidateShadow];

}

return self;

}

– (void)setContentView:(__kindof NSView *)contentView{

contentView.wantsLayer = YES;

contentView.layer.frame = contentView.frame;

contentView.layer.cornerRadius = 5.0;

contentView.layer.masksToBounds = YES;

[super setContentView:contentView];

}

– (BOOL)canBecomeKeyWindow{

return YES;

}

– (BOOL)canBecomeMainWindow{

return YES;

}

@end

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来源：我肯定疯了