Re: CALayer kCAGravityResizeAspectFill and kCAGravityTop
> > > Its still an option, especially if you are otherwise using UIViews – > UIView.maskView would do the trick. > Wow - I wasn't even aware that exists. Nice! Thanks! ___ 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
Re: CALayer kCAGravityResizeAspectFill and kCAGravityTop
> On Sep 21, 2016, at 11:44 AM, Torsten Curdt wrote: > > There isn’t an option to fill width and align top. The more general > recommendation in this space however would be to use a UIImageView, which has > all the same options but participates in higher level layout (including the > content of autoResizingMasks, and also auto layout). > > I am using the layer as a mask - so the UIImageView isn't really an option. Its still an option, especially if you are otherwise using UIViews – UIView.maskView would do the trick. > BUT I just found that adjusting the contentsRect to the right ratio does the > trick. If you are going to do that, you might as well just calculate the aspect ratio as well. Keep in mind that if the image you are using as a mask is not fully under your control, you will also have to adapt for the image orientation – if the image is not oriented up, then you need to rotate as well. > > cheers, > Torsten -- David Duncan ___ 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
Re: CALayer kCAGravityResizeAspectFill and kCAGravityTop
> > There isn’t an option to fill width and align top. The more general > recommendation in this space however would be to use a UIImageView, which > has all the same options but participates in higher level layout (including > the content of autoResizingMasks, and also auto layout). > I am using the layer as a mask - so the UIImageView isn't really an option. BUT I just found that adjusting the contentsRect to the right ratio does the trick. cheers, Torsten ___ 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
Re: CALayer kCAGravityResizeAspectFill and kCAGravityTop
> On Sep 21, 2016, at 11:18 AM, Torsten Curdt wrote: > > On iOS I want to fill a layer with an image. > The width should be filled and the image should retain its aspect ratio. > This > >layer.contents = image.cgImage >layer.contentsGravity = kCAGravityResizeAspectFill > > almost does the right thing - but it positions the image at the centers. > I would like to have it positioned at the top. There isn’t an option to fill width and align top. The more general recommendation in this space however would be to use a UIImageView, which has all the same options but participates in higher level layout (including the content of autoResizingMasks, and also auto layout). > > While looking at the docs for CALayer I found "autoresizingMask" but that > seems to be macOS only. > > Any pointers? > > cheers, > Torsten > ___ > > 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/david.duncan%40apple.com > > This email sent to david.dun...@apple.com -- David Duncan ___ 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
CALayer kCAGravityResizeAspectFill and kCAGravityTop
On iOS I want to fill a layer with an image. The width should be filled and the image should retain its aspect ratio. This layer.contents = image.cgImage layer.contentsGravity = kCAGravityResizeAspectFill almost does the right thing - but it positions the image at the centers. I would like to have it positioned at the top. While looking at the docs for CALayer I found "autoresizingMask" but that seems to be macOS only. Any pointers? cheers, Torsten ___ 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
