what is image size(resolution) for iPad 3 application development?

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.

Solution

With the iPad 3, you also simply need to name your retina images foo@2x.png. It needs to be exactly two times the resolution of the corresponding foo.png. So, say foo.png is 10x10, then your foo@2x.png needs to be 20x20.

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
foo@2x.png 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 foo@2x.png.