I am still trying to make an application icon image look non-vibrant in the middle of a window with vibrant background colors surrounding the icon -- exactly like Apple's Command-Tab application switcher in Yosemite.
I have implemented this as a borderless window with two independent subview hierarchies in the window's contentView, following David Duncan's advice, but it still doesn't work. The first hierarchy, filling the window's contentView spatially, is an NSVisualEffectView with behind-window blending containing a vibrant subview that consists only of grayish background colors. The second subview hierarchy, placed in front of the first, is an NSImageView filling only the center area of the window and containing an application icon image. The icon imageView is not a subview of NSVisualEffectView. The icon image appears vibrant no matter what I do. When I drag the window from white to dark areas of the screen, both the window's background colors and the icon image itself alter their darkness to reveal the blurred boundary on screen behind the window. The icon imageView appears vibrant even though [effectiveAppearance allowsVibrancy] returns NO. I have tried putting the icon image behind the vibrant view, but then the icon is invisible because it is blocked by the background colors of the view in front (and by the material of the NSVisualEffectView in front). I have tried putting the icon image in its own NSVisualEffectView and setting its state to NSVisualEffectInactive, as recommended in the NSVisualEffectView reference document, but it has no effect. I have tried the various "opt-out" mechanisms suggested in the WWDC 2014 session 220, but none of them work (and the discussion was just a little inarticulate, if I may say so, so I'm not sure exactly what was being recommended). The discussion in the Yosemite AppKit Release Note also contains some suggestions that I couldn't make work. I have the impression that NSVisualEffectView changed quite a bit between WWDC and final release, and the documentation that exists is not very helpful. Can anyone outline a strategy for reproducing Apple's application switcher? -- Bill Cheeseman - b...@cheeseman.name _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
