Android ClassNotFoundException: AccelerateInterpolator looked for in wrong package

I´m stuck with the following error while trying to integrate ZXing for scanning DataMatrix-Codes in my Android App:

06-16 13:25:54.004: E/AndroidRuntime(32515): FATAL EXCEPTION: main
06-16 13:25:54.004: E/AndroidRuntime(32515): Process: com.myApp, PID: 32515
06-16 13:25:54.004: E/AndroidRuntime(32515): java.lang.RuntimeException: Unable to start activity   ComponentInfo{com.myApp/com.google.zxing.client.android.CaptureActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class accelerateInterpolator
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2505)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2565)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.app.ActivityThread.access$900(ActivityThread.java:150)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1395)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.os.Handler.dispatchMessage(Handler.java:102)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.os.Looper.loop(Looper.java:168)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.app.ActivityThread.main(ActivityThread.java:5821)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at java.lang.reflect.Method.invoke(Native Method)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:687)
06-16 13:25:54.004: E/AndroidRuntime(32515): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class accelerateInterpolator
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.preference.GenericInflater.createItemFromTag(GenericInflater.java:443)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.preference.GenericInflater.inflate(GenericInflater.java:318)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.preference.GenericInflater.inflate(GenericInflater.java:264)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.preference.PreferenceManager.inflateFromResource(PreferenceManager.java:273)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.preference.PreferenceManager.setDefaultValues(PreferenceManager.java:486)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.preference.PreferenceManager.setDefaultValues(PreferenceManager.java:445)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at com.google.zxing.client.android.CaptureActivity.onCreate(CaptureActivity.java:143)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.app.Activity.performCreate(Activity.java:6262)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1125)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2458)
06-16 13:25:54.004: E/AndroidRuntime(32515):    ... 9 more
06-16 13:25:54.004: E/AndroidRuntime(32515): Caused by: java.lang.ClassNotFoundException: Didn't find class "android.preference.accelerateInterpolator" on path: DexPathList[[zip file "/data/app/com.myApp-1/base.apk"],nativeLibraryDirectories=[/data/app/com.myApp-1/lib/arm, /data/app/com.myApp-1/base.apk!/lib/armeabi, /vendor/lib, /system/lib]]
06-16 13:25:54.004: E/AndroidRuntime(32515):    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.preference.GenericInflater.createItem(GenericInflater.java:376)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.preference.GenericInflater.onCreateItem(GenericInflater.java:419)
06-16 13:25:54.004: E/AndroidRuntime(32515):    at android.preference.GenericInflater.createItemFromTag(GenericInflater.java:430)
06-16 13:25:54.004: E/AndroidRuntime(32515):    ... 18 more
06-16 13:25:54.004: E/AndroidRuntime(32515):    Suppressed: java.lang.ClassNotFoundException: android.preference.accelerateInterpolator
06-16 13:25:54.004: E/AndroidRuntime(32515):        at java.lang.Class.classForName(Native Method)
06-16 13:25:54.004: E/AndroidRuntime(32515):        at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
06-16 13:25:54.004: E/AndroidRuntime(32515):        at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
06-16 13:25:54.004: E/AndroidRuntime(32515):        at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
06-16 13:25:54.004: E/AndroidRuntime(32515):        ... 22 more
06-16 13:25:54.004: E/AndroidRuntime(32515):    Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

To add Barcode scanning capability i followed this tutorial because the app is intended for use in an enterprise environment and therefor an additionally installed scanning app is not applicable.

Obviously, the package for the missing class accelerateInterpolator is wrong and should be android.view.animation.accelerateInterpolator (and not android.preferences.accelerateInterpolator). As this class is not called by my own code I have no clue where this incorrect path comes from and how to correct it.