旧iPhone的ui设计可以在iphone4上使用吗？

Question

我正在开发软件，所有ui都是基于480x320尺寸的屏幕绘制的，我的软件可以在iphone4上运行而无需进行任何修改吗？

Answer 1

Yes it can run with no modification.

If you'd like to create "retina" assets you can create all of your images at the double resolution and include copies with '@2x' appended to the filename in your Application bundle. The iPhone will automatically load the correct images.

Example: existing image - myImage.png new up-sampled image - myImage@2x.png

Answer 2

是的，但是与自定义设计的iPhone 4图像相比，适用于早期iPhone型号的任何尺寸的图像看起来都显得矮胖。

Answer 3

Both the iPhone 4 and older devices are 320x480 points in size, which is the coordinate system that Core Graphics and UIKit uses. So your software will run the same.

Only the automatic scaling between your bitmaps and the display will be different. If you have bitmapped content or images, you can optionally provide @2x sized versions that will look somewhat smoother without the 2X scaling on iPhone 4 devices. This is nice, but optional.