if I changed app graphics for iphone 5 , is it going to work for iphone 4, 3GS properly or the users have to resize the app like when you download iphone app in iPad ?
If you mean you are using both normal sized images and 2x images for retina display, you won't have a problem on older devices.
They'll just pickup the regular sized images while the ones with retina display will load the #2x ones.
What you do have to take into account is that if you don't include regular sized images (if you only use #2x images), older devices won't load them.
#2X will still work. However I did download xcode 4.5 with iOS 6 Gold Master seeds and played with it last night. The splash screen will include the new slightly higher resolution image 11??x640 as well as the 960x640 and 480x360.
For fullscreen images, you will have to supply at least two versions, better three.
One being 640 × 1136, one being 640 x 960 and one being 320 x 480.
For the 3.5" retina version, you may use the automatic selection (aka #2x). For the former 4" retina version it appears as if you will have to include your own code to select the right one.
Related
I'm currently developing an application for iPhone with iOS7, only.
From what I read, for iPhone with iOS7, there is no support for older devices than iPhone4.
If that's the case, when it comes to images, all I need is retina images (#2x).
Can I submit to the App Store, an app with only retina images, since the app's minimal requirement is retina devices ?
Thank you.
Possible duplicate of Can I dump my non-Retina Images for a iOS7 only app?
Anyway, as long as I know you don't need #2x version of your images as long as you don't support old displays, but remember that your images as to be double width and height, then if you have a 100x100px UIImageView, you need to load a 200x200px image to meet retina resolution.
EDIT: To explain in deep.
Actually, iPad 2 and iPad mini 1st generation run iOS 7 and doesn't have retina display. Anyway using #2x images it is not mandatary. You can just use double size images and set your UIImageViews' contentMode to UIViewContentModeScaleToFill to fit your needs.
PROS -> smaller bundle
CONS -> worst performaces
I have some image files for iPhone 5 size 640x1136, i have previously implemented retina images for iPhone 4 & 4S using #2x suffix, so what will be the suffix for images in iPhone 5, we can user the same as is #2x or it has to be changed.
It’ll still use #2x images where they’re available. There’s a -568h suffix you can use for the launch image, as in Default-568h#2x.png, but that’s currently the only place it’s supported; see Leo’s answer for a way to get that working elsewhere.
See my answer here. Some useful macros to help you with dealing with images.
For the iPhone Retina 4-inch (iPhone 5) it's still the #2x suffix because the density is the same as the iPhone Retina (iPhone 4 and 4S). The screen is bigger but have the same density.
The -568h suffix will work only in for the default image because it's the only place you really need it (just to tell the system that your app have been optimized for this new screen size, and it can stretch your views).
The naming convention Default-xxx.png is just here to provide the right image while the app is launching but I think it's non sense to try to replicate the same to load other images in imageViews. It's like the Default-(landscape|portrait).png on iPad. You never need this convention to load images yourself.
The only rule is:
# is for density (2 density exist right now, normal and 2x)
~ is for device (2 different devices exist right now, iphone and ipad)
To adapt images/imageView on the 4-inch iPhone you should play with your imageView content mode and the autoresizing configurations.
My background and my icons are all huge, like it's zoomed in 2x. Any ideas why?
Check the images in the app- there should be two sets of images, with one set being at double resolution and suffixed with "#2x". If there's just one set and they seem large, odds are the developer never intended the app to be run on a device that's not running iOS4 (which seems odd, but there it is).
That's because the apps in iOS 4 are targeted for iPhone/iPod 4 which have a resolution of 960 x 640, whereas iOS 3 has a resolution of 480 x 320. Do read about Retina Display of iOS for further details.
For our iPhone app, we are using 50 x 50 user image (from facebook). It works fine for iPhone 3G and 3GS but not for iPhone 4 due to its high resolution display. For iPhone 4 we tried to send 100 x 100 (variable height) image but it is not working for obvious reasons. Any thought?
You don't need to do anything different for the Retina Display. Using exactly the same image as you have on the older iPhone will work exactly the same.
If you have a higher resolution image that you'd like to display instead, then if you save the file with a #2x suffix then, if the device has a Retina display, it will pick that instead. In most cases it should not require any extra code.
If I provide an image in both the standard size and now a new one with #2x for iPhone 4, which one with the iPad use? If the user chooses the 2X feature to run the iPhone app in full screen on the iPad, do they seem the lower quality images stretched or will they see the higher quality images?
The lower quality images, at least in OS 3.2, which is pre-iPhone 4.
When iPad is updated to 4.x this might change.