问题描述

I'm relatively new in iOS development.

I'm currently building an app using the cocos2d library that will be available for the iPad Retina, iPad, iPhone 5, and iPhone 4s/4.

I'm getting all of my images setup, and I'm trying to figure out the naming conventions.

Does anyone know of a guide out there that could help me?

Say I have a background.png.

From what I understand:

• background.png -> iPhone (non-retina/fallback)
• background-hd.png -> iPhone 4s/4 (retina)
• background-ipad.png -> iPad (non-retina)
• background-ipadhd.png -> iPad (retina)

And the same naming convention would be used for all other files? For example:

• arbitraryButton.png -> iPhone (non-retina/fallback)
• arbitraryButton-hd.png -> iPhone 4s/4 (retina)
• arbitraryButton-ipad.png -> iPad (non-retina)
• arbitraryButton-ipadhd.png -> iPad (retina)

What do I name the iPhone 5 files?

I've searched a bit and cant seem to find any tangible guides out there on this.

Thank you!

The OS has a naming convention that you can use (and enforces for you, meaning you only need to reference the file as @"fileName"). The documentation is available here.

• fileName.png -> iPhone (non-retina/fallback)
• fileName@2x.png -> iPhone 4s/4 (retina)
• fileName~ipad.png -> iPad (non-retina)
• fileName@2x~ipad.png -> iPad (retina)

Note: ~iphone also exists, and can be used with/instead of using ~ipad. Using both ~ipad and ~iphone would safeguard against a third idiom Apple may introduce. cough TV cough

As for the iPhone 5, the OS does not enforce a naming scheme. But, it'd probably be wise to use the same scheme as that for the launch image.

• fileName-568h@2x.png -> iPhone 5

To handle this easily throughout the app, you can create a category, and use it where you know you will have an iPhone 5 friendly image, as well as a regular sized image. A simple version can be made, like the one below.

UIImage+iPhone5Image.h

#import <UIKit/UIKit.h>

@interface UIImage (iPhone5Image)

+ (UIImage*)iPhone5ImageNamed:(NSString*)imageName;

@end

UIImage+iPhone5Image.m

#import "UIImage+iPhone5Image.h"

#define IsIPhone5() ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPhone && [UIScreen mainScreen].bounds.size.height == 568)

@implementation UIImage (iPhone5Image)

+ (UIImage*)iPhone5ImageNamed:(NSString*)imageName
{
    if (IsIPhone5()) {
        NSString* newImageName = [NSString stringWithFormat:@"%@-568h", imageName];
        return [UIImage imageNamed:newImageName];
    }
    else {
        return [UIImage imageNamed:imageName];
    }
}

@end

这篇关于iOS 图像命名约定的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！