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POWhy can't I do any CABasicAnimation or Keyframe animation stuff?
 

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  1. POWhy can't I do any CABasicAnimation or Keyframe animation stuff?
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    <p>For some reason Xcode tells me that it doesn't find symbols as soon as I use something like kCAFillModeForwards. There must be a library or class that I have to include...but which one? The normal Core Animation stuff works fine like [myView beginAnimations...]. What's the trick to get the more sophisticated animation stuff to work?</p> <p>I've included in the .h file:</p> <pre><code>#import &lt;UIKit/UIKit.h&gt; #import &lt;QuartzCore/QuartzCore.h&gt; @interface TestClass : UIView { } // ... </code></pre> <p>I run this code:</p> <pre><code>- (void)testAnimation { CABasicAnimation *fadeInAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"]; [fadeInAnimation setToValue:[NSNumber numberWithFloat:1.0]]; fadeInAnimation.fillMode = kCAFillModeForwards; fadeInAnimation.removedOnCompletion = NO; // other stuff deleted to limit error possibilities...should at least compile } </code></pre> <p>This happens when I build (did clean up lots of times), 2 Errors:</p> <pre><code> cd "/Users/thanks/Desktop/Thanks/iPhone Development/TestApp" setenv MACOSX_DEPLOYMENT_TARGET 10.5 setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.0 -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator2.2.1.sdk "-L/Users/thanks/Desktop/Thanks/iPhone Development/TestApp/build/Debug-iphonesimulator" "-F/Users/thanks/Desktop/Thanks/iPhone Development/TestApp/build/Debug-iphonesimulator" -filelist "/Users/thanks/Desktop/Thanks/iPhone Development/TestApp/build/TestApp.build/Debug-iphonesimulator/TestApp.build/Objects-normal/i386/TestApp.LinkFileList" -mmacosx-version-min=10.5 -framework Foundation -framework UIKit -framework CoreGraphics -o "/Users/thanks/Desktop/Thanks/iPhone Development/TestApp/build/Debug-iphonesimulator/TestApp.app/TestApp" Undefined symbols: ".objc_class_name_CABasicAnimation", referenced from: literal-pointer@__OBJC@__cls_refs@CABasicAnimation in TestClassTestClass.o "_kCAFillModeForwards", referenced from: _kCAFillModeForwards$non_lazy_ptr in TestClass.o ld: symbol(s) not found collect2: ld returned 1 exit status ".objc_class_name_CABasicAnimation", referenced from: literal-pointer@__OBJC@__cls_refs@CABasicAnimation in TestClass.o "_kCAFillModeForwards", referenced from: _kCAFillModeForwards$non_lazy_ptr in TestClass.o ld: symbol(s) not found collect2: ld returned 1 exit status </code></pre> <p>It says <strong>Undefined symbols:</strong></p> <p>Must I include some framework?</p> <p>I have already included:</p> <p>CoreGraphics.framework Foundation.framework UIKit.framework</p> <p>When I remove all the code, but import QuartzCore/QuartzCore.h, then I don't get any error. So I bet that import works, but not sure.</p> <p><strong>SOLVED</strong></p> <p>I missed to include the QuartzCore framework!!</p>
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    1. COPerhaps instead of asking this question, you could have kept to the responses in the comments here: http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path/1143095#1143095
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      1. USBrad Larson
    2. COIf you wrote this to have a clear question with a clear answer, let me tell you: Your plan failed!
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      1. POWhy can't I do any CABasicAnimation or Keyframe animation stuff?
      1. USNikolai Ruhe
    3. COYou should award the answer to Jules.
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      1. USMark Ingram
 

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