Sparrow Forum

1. 

   evripidis
   Member

   I've read every thread on the forum but i can't say that it was clear enough (at least for rookies).

   I'm trying to convert my app in Universal app. I've used the barebones project to create my app and i want to load it without x2 option.

   This post

   http://forum.sparrow-framework.org/topic/ios-42-ipad-strange-behavior#post-2345

   describes a procedure. Here is where it's being complicated.

   For example i have to set this : [SPStage supportHighResolutions:YES]; and also this [SPStage setScaleFactor:2.0f];

   Where? In the source code (SPStage.m)? Here?

   // --- static members ------------------------------------------
   static BOOL supportHighResolutions = NO;
   static float contentScaleFactor = -1;
   static NSMutableArray *stages = NULL;

   Also what else?

   I am really confused about that, cause right now my app runs at 1/4 of my iPad's screen.

   Is anyone kind enough to explain a little bit more? I am sure many users would like to know about that.

   Posted 6 months ago #
2. 

   Dan
   Member

   It sounds like you've got it working - if your iPhone non-retina graphics are occupying roughly a quarter of the screen then that's correct, you just need to swap out all of your graphics for graphics aimed at 1024 x 768 and make sure all the numbers you use in the game still work at the new higher resolution.

   Posted 6 months ago #
3. 

   evripidis
   Member

   Maybe i've got it wrong, you are correct.

   Let me explain.

   backgroundimage 480x320
   backgroundimage@2x 960x640

   On iPhone emulator everything is fine..
   On iPad emulator the background goes at 1/4 (stay's like iPhone).

   I've even set the large image here :

   SPImage *backgroundImage = [SPImage imageWithContentsOfFile:@"backgroundimage@2x.png"];

   Nothing changes.

   Am i wrong, right?

   Posted 6 months ago #
4. 

   evripidis
   Member

   I've managed to load the big picture (i've created a new project and wrote the code again )

   Now i've only the large picture for my background. If i want to have 2 pictures (small iPhone, big iPad) how i have to insert them into the code? I have to name them somehow?

   Right now i have

   SPImage *backgroundImage = [SPImage imageWithContentsOfFile:@"backgroundimage.png"];

   and loads up my big picture. But unfortunatelly, in the iPhone version is not so correct.

   Posted 6 months ago #
5. 

   Dan
   Member

   I believe Sparrow won't load a @2x image when the contentScaleFactor is not set to 2 (i.e. your iPad has a contentScaleFactor of 1 and so it won't load the @2x images) in any case even if you did load the @2x it wouldn't fill the screen.

   If you were to try loading a third background image called backgroundImage_iPad that was 1024 x 768 it should work fine...

   If what you really need to do is show the @2x image on the iPad you'll have to make some changes to the Sparrow source.

   Posted 6 months ago #
6. 

   Dan
   Member

   Your post beat me by 10 seconds!

   "SPImage *backgroundImage = [SPImage imageWithContentsOfFile:@"backgroundimage.png"];

   and loads up my big picture. But unfortunatelly, in the iPhone version is not so correct. "

   You will have to do different things for iPhone and iPad unfortunately - as they both require different images.

   Posted 6 months ago #
7. 

   evripidis
   Member

   Those different things, is there any sample, so i can understand how can i do it ?

   Cause except that, when you have a univarsal app and don't have xib files, there are many things that you have to change (scale text etc)

   Posted 6 months ago #
8. 

   Dan
   Member

   At it's most basic form (and I wouldn't really recommend doing this for every graphic) you could do:

   NSRange range = [[[UIDevice currentDevice] model] rangeOfString:@"iPad"];
   if(range.location==NSNotFound)
   {
   	// load iPhone graphics
   	SPImage *backgroundImage = [SPImage imageWithContentsOfFile:@"backgroundimage.png"];
   }
   else
   {
   	// load iPad graphics
   	SPImage *backgroundImage = [SPImage imageWithContentsOfFile:@"backgroundimage_iPad.png"];
   }

   You'll need to come up with some easier way of loading the correct graphics for each version (we use an XML based system and different XML files are loaded depending on the platform the app is being run on).

   Posted 6 months ago #
9. 

   evripidis
   Member

   Got it Dan, thanks a lot for your help

   Posted 6 months ago #
10. 

    Dan
    Member

    No probs

    Posted 6 months ago #

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