images will downsize in iPhone app

Dear all,

We build an iPhone app that uses a lot of images.  If I crop images 1136 x 640 for the retina of the iPhone 5 screen size screen, the images will be automatically downsize for iPhone 4 and 4 s phones?  We have a lot of pictures and I rather would include ONLY high res images and automatically to reduce the images for the older phones - not enough space to include three sizes.  We'll probably build a separate application for the iPad.  I use Dreamweaver CS6.  Thank you.

Small town Gal

In your scenario, you can just use a regular image 2 x and using UIImageView to enter into action and images of scale reduced by 50% during execution. It will work at the end of the API and your applications won't have any trouble getting approved. People for this.

But, the downside:

  • Ideally, you should determine the DPI of the device at the launch and scale down accordingly to avoid the mess or pixelated images
  • A few small graphics will suffer - as buttons, icons, etc... - as Apple double pixel in each direction. Considering this, using just a 2 x approach of images may not be the best way to ensure 'crisp' images

On the other hand, you can simply use 1 x and 2 x photos and let the camera choose the image that is optimal, according to its resolution. While this will certainly result in a larger application, it will not be a lack of memory on the device since the API captures the relevant image and loads only when running. It will not load another image which is not optimal for the device, according to which it is run.

On a sidenote, there is a nice article here that I think you should read: http://bjango.com/articles/designingforretina/

I want to include as many excellent images in our applications that we can include in the 50 meg size limit

Yes, Apple has increased a customized for 3 G downloading 50 MB of the older 20 MB size app because they knew that most existing applications would at least double in size because of the "retina" optimized images that are twice the original resolution.

However, note that this limit of 50 MB only for download via your operator cellular 3 g / LTE. Users can still download the application from the App Store via Wi - Fi if your application is more than 50 MB. One last thing to consider is that with the price of data going skywards around the world, users will be still careful with large download applications and most of them will use Wi - Fi (I do and I know that many of my friends do) when they want to get an app that is significantly higher than the size of the file.

Trust that this assistance.

Tags: Dreamweaver

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