Question

As we know iPad 3 have 2048×1536 resolution.
for iPhone 4 with retina display we put big image with name @2X and one normal image in our bundle.

so for iPad 3 application development we also need to put two images one is normal size and other with big size with @2X name..?

Any one know please reply.

Answer 1

With the iPad 3, you also simply need to name your retina images [e-mail]. It needs to be exactly two times the resolution of the corresponding foo.png. So, say foo.png is 10×10, then your [e-mail] needs to be 20×20.

You can also make version specifically for iPhone/iPod or iPad and iOS will automatically chose the correct version. For this, you can use the ~iphone and ~ipad modifiers:

• foo.png for all devices with non-retina display
• foo~iphone.png specifically for iPhone/iPod non-retina
• foo~ipad.png specifically for iPad non-retina
• [e-mail] for all devices with retina display
• foo@2x~iphone.png specifically for iPhone/iPad retina
• foo@2x~ipad.png specifically for iPad retina

You can mix them in any combination, as long as there’s always a version for all your supported devices (if you’re doing an iPad-only app there’s no need to provide images for iPhone, of course). So it’s OK to provide for example foo~iphone.png, foo~ipad.png and then [e-mail].