Tutorial: cocos2d Xcode Project: Upgrade Targets to iPad
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In this lesson we'll upgrade our existing targets to iPad Targets. We'll upgrade both the LITE and regular Targets.
Select desired Target
Simply select the target you want to convert to an iPad Target.
Upgrade Target for iPad
In the Project menu choose "Upgrade Current Target for iPad".
Select two device-specific applications
Since it doesn't make much sense for games to create a universal application, choose the "Two device-specific applications" setting and click OK.
Why not a universal application? The reason is simple: for the iPad version you want to have higher resolution graphics. But you don't want to include those high resolution graphics with your iPhone version because of the increase in size of the app bundle. So it is better to have two seperate targets each with their own set of device-specific resources.
Get Info on the iPad Target
Select and right or control click the new iPad Target and "Get Info".
Copy & Rename the Info.plist
Go into the project folder using Finder and copy the Info.plist file from the Resources folder to the newly created Resources-iPad folder. Rename the Info.plist to Info-iPad.plist and then change the path for the "Info.plist File" setting in all Build configurations to "Resources-iPad/Info-iPad.plist".
This is not strictly necessary but allows you to name your iPad version differently. Typically developers like to add an "HD" to their App's name.
Enable Thumb
With All Configurations selected, enable "Compile for Thumb" and also check the box below for "Any SDK" and "ARMv6" and "ARMv7". We want to use Thumb code on the iPad because Thumb is generally faster on the iPad, contrary to the iPhone.
Add iPad Preprocessor Macro
We want to be able to identify when building iPad code. While we can check for #if TARGET_OS_IPHONE and #if TARGET_IPHONE_SIMULATOR we have no way to conditionally compile code for the iPad, so we need to add a TARGET_IPAD macro.
Switch to the Debug Configuration and add a Preprocessor Macro TARGET_IPAD. Repeat this step for all Build Configurations (Debug, Release, Ad Hoc Distribution and App Store Distribution) seperately so that you don't overwrite configuration-specific settings.
Create an iPad LITE Target
It seems you can only upgrade one Target in a project. If you need an iPad LITE version target, refer to the Adding a LITE version Build Target lesson to create a LITE version from the iPad Target.
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I get “cocos2d.h:No such file or directory” when trying to #import “cocos2d.h”
what am I missing?
ups, the path to the source code was wrong.
This tutorial is toooo long.
Is there a short version ? I spent two hours on this and as I expected nothing works.
For begininers its not going to work
Great info! Thanks! However, the script is building the .ipa file before it does the codesign step. Have things changed in Xcode? How do I get the script to run after the codesign step?
I tried twice to follow your tutorial step by step using cocos2d 0.99.5-rc1, Xcode 3.2.5 and iOS 4.2.1, but I keep having problems when building and running on device.
The weird thing is I have no problem at all running the template on simulator!
To be more clear:
I’m trying to build and run following the final step of “Getting our Project Template to build minimal cocos2d code” section.
Running on simulator works perfectly, running on device (iphone4) crashes after splash screen with this message on console:
“Program received signal: “EXC_BAD_ACCESS”.
warning: Unable to read symbols for /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.2.1 (8C148)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (file not found).
Previous frame inner to this frame (gdb could not unwind past this frame)”
By stepping with debugger I found the app crashes on line 98 of AppDelegate.m:
“// make the View Controller a child of the main window
[window addSubview: viewController.view];”
I see there are little differences from your (great) tutorial and Xcode/cocos2d new templates, mainly for the use of RootViewController, may this crash be related? (I already added RootViewController.* to my template)
Has anyone found a fix to this problem?
Please please please help me, this thing is driving me crazy =/
Thanks
It might be related. Have you tried the version on github? https://github.com/GamingHorror/cocos2d-project
That version is tested with 0.99.5
But I recently started getting those “could not unwind” errors … I was able to fix them by changing the compiler in all referenced projects back to GCC.
Bingo!
Thanks a lot, you point me to a fix.
I had already tried with your latest github version, without luck.
I followed your suggestion, changing the compiler to GCC 4.2 on all projects (both cocos2d-project and cocos2d-ios) and it worked!
I suppose the problem was in compiler setting for cocos2d-ios, it was set to LLVM compiler 1.6.
If I set compiler to different version for the two projects, I always get that crash, when using same gcc version, everything is ok.
I tried also with LLVM GCC4.2 on both projects and it works too.
Probably I never met this problem since using cocos2d built-in templates everything get compiled using gcc without further setting.
Thanks a lot for your tutorials… and for fast replying too
Hi Steffen
To upgrade a project created with your template from e.g. 0.99.5 rc1 to the final 0.99.5 I just need to copy over the cocos2d-IPhone folder?
I would assume yes but thought of asking since it does not clearly covered in the main points/links at the top of this tutorial
Correct, although you should keep a copy of the old folder just in case.
I receive a lot of EAGLView may not respond to …xxx warnings, and I believe these are the undeclared selectors you are mentioning in your comment. How can I fix it? Only with turning off the treat warning as error option or also by changing the code?
I didn’t understand where to implement the code from your comment on this tutorial.
BTW, the entire tutorial is really great!!
If you get these errors then it’s because the EAGLView has changed in the latest cocos2d version. It should work with the cocos2d-project that you can get from github: https://github.com/GamingHorror/cocos2d-project
Hi
1st: GREAT job on this PDF. Realllly appreciated.
I just did the first part up to Helloworld with the 99.5 version. (up to page 43 of pdf)
You might want to update a bit, the part where we get the AppDelegate from Helloworld sample : since in 99.5 Cocos changed the samples so that for exemple main.m does not exists main() is in the delegate.m file.
Continue the great work.