Thanks. I'll work with the layer and see if I notice any performance impact between individual images. I think my (read: the client that asked me to redo the app ) main concern is app download size.
This is a conversion from a phone gap app. There was no use of sprites previously; instead background-size:100% 100% was used everywhere and there are an excessive amount of large png files with very similar color palettes and a common background box that’s a part of every image. I've converted the background box (which is the only part of the image with transparency) to a ResizableImage. All of the rest of the images can be combined into a jpeg to drastically reduce their size. This will knock close to 10MB out of the app just looking at the first few views. I of course realize that sprite packing dates much further than the current web pattern and realize that on the web, you have the big benefit of fewer http request, but there's a lot that can be done to optimize the size of an app through good image compression/combination. Thanks for the input! -----Original Message----- From: Nic Wise [mailto:n...@fastchicken.co.nz] Sent: Thursday, August 02, 2012 3:48 PM To: Drew Greenwell Cc: monotouch@lists.ximian.com Subject: Re: [MonoTouch] combine multiple images into a sprite most views are layer-backed anyway, so it should be fairly efficient. Why not just have a load of small images? UIImage.FromFile or .FromBundle is pretty efficient. Sprites on the web were really only done because the time to do 50 HTTP requests is a LOT compared to 1 - 50 loads off disk isn't a big deal on an iphone. On Thu, Aug 2, 2012 at 12:42 PM, Drew Greenwell <dgreenw...@leapfroginteractive.com> wrote: > Hey all, I’ve got a question about using the sprite pattern that is > commonly used on the web to reduce payload for a monotouch app. What’s > the most appropriate/efficient way to render only the section of the > source image that I want inside of a UIImageView? (example If I have > 5 50 pixel icons stacked in one image, how would I get icon 3 to be > the visible region of my UIImageView). > > > > This post about animating a sprite seems to create a layer with the > image then adds that as a sublayer to a UIImageView, this doesn’t feel > like the right way to do this but, if this is the only solution.. then > so be it I reckon. > > http://stackoverflow.com/questions/9187820/how-do-i-animate-a-sprite-s > heet-using-monotouch-and-core-animation > > > > Thanks > > Drew > > > > > > __________ Information from ESET NOD32 Antivirus, version of virus > signature database 7349 (20120802) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > _______________________________________________ > MonoTouch mailing list > MonoTouch@lists.ximian.com > http://lists.ximian.com/mailman/listinfo/monotouch > -- Nic Wise t. +44 7788 592 806 | @fastchicken | http://www.linkedin.com/in/nicwise b. http://www.fastchicken.co.nz/ mobileAgent (for FreeAgent): get your accounts in your pocket. http://goo.gl/IuBU Trip Wallet: Keep track of your budget on the go: http://goo.gl/ePhKa Earnest: Self-employed? Track your business expenses and income. http://earnestapp.com Nearest Bus: find when the next bus is coming to your stop. http://goo.gl/Vcz1p London Bike App: Find the nearest Boris Bike, and get riding! http://goo.gl/Icp2 __________ Information from ESET NOD32 Antivirus, version of virus signature database 7351 (20120803) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 7352 (20120803) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com _______________________________________________ MonoTouch mailing list MonoTouch@lists.ximian.com http://lists.ximian.com/mailman/listinfo/monotouch
