如何迁移iPhone 5屏幕分辨率的应用程序？

Question

我在iphone中有一个应用程序，我在后台使用大部分静态图像作为背景图像中的图像。它是一个单一的背景图像，包​​括所有的staic things.now我也想迁移到iphone 5。现在我正在使用640 * 960的图像作为背景图像。如果我将其更改为640 * 1136，那么当它在iphone的4个系列中使用时，我认为图像会缩小。让我通过检查屏幕修复框架尺寸。任何人都可以帮我解决这个问题吗？

Answer 1

To know, what kind of image You should use (for iPad 768x1024, for iPhone 320x480, etc..) You can detect device, and then set corresponding image.

You can distinguish between iPad/Retina/iPhone using this SO article:

Detect retina screen/iPhone 4 in iPhone SDK

You can detect iPhone 5 using example in this SO article:

How to detect iPhone 5 (widescreen devices)?

If you have only portrait supported, You can check using this simple method:

if([[UIScreen mainScreen] bounds].size.height == 480)
{
    //iPhone, iPhone retina
}
else if([[UIScreen mainScreen] bounds].size.height == 1024)
{
    //iPad, iPad retina
}
else //568 height
{
    //iPhone 5
}

And of course - as Valeriy Van mentioned, You need Default-568h@2x.png image added to your bundle.

Answer 2

There is no connection between image resolution and size of UIImageView. Image will be rescaled or positioned inside view bounds depending on contentMode property.

What you need first - add Default-568h@2x.png image of 640x1136 as Launch Image for Retina 4 inch. If springs and struts of your views are set right, everything will work as granted.