使应用程序与iPhone4和iPhone5兼容，而无需设置不同的帧大小

Question

Today i am going to create an iphone application which is compatible with iphone4 and iphone5. Earlier i have changed iphone4 application views programetically by using below code to adjust controllers for iphone5.

 CGRect screenBounds = [[UIScreen mainScreen] bounds];
 if (screenBounds.size.height == 568) {
 // code for iphone5
 }
 else {
 // code for iphone4
 }

am thinking this is difficult to track all the frames and sizes of controllers each and every time. I have created one sample app and also tried with Auto-resizing option(i have put check mark) at the starting of view and selected size Retina 4 full screen in inspector. And also selected simulator hardware-device is iphone Retina-4 inch

if i change simulator hardware-device is iphone Retina-3.5 inch then the screen is looking like

My question is without setting frames how can i achieve this problem. Please help me. Thanks in advance.

Answer 1

You can use this link for autosizing

http://blog.mugunthkumar.com/coding/supporting-the-iphone-5/

Answer 2

Instead of giving static numbers give frames dynamically . means instead of giving 320 give self.view.frame.size.width so you no need to check the device, just you need to add default splash screen.

Answer 3

You problem could be resolved easily using Autolayout feature provided in the XCode Version 4.x . Go through the following link :-

http://www.raywenderlich.com/20881/beginning-auto-layout-part-1-of-2

By applying few contraints using Autolayout your problem could easily be resolved. Happy Coding :)