Hi,

i tried your library but i got this error
java.lang.ArrayIndexOutOfBoundsException: length=0; index=0 at com.andrognito.patternlockview.PatternLockView$Dot.of(PatternLockView.java:1195) at com.andrognito.patternlockview.PatternLockView.checkForNewHit(PatternLockView.java:925) at com.andrognito.patternlockview.PatternLockView.detectAndAddHit(PatternLockView.java:784) at com.andrognito.patternlockview.PatternLockView.handleActionDown(PatternLockView.java:1080) at com.andrognito.patternlockview.PatternLockView.onTouchEvent(PatternLockView.java:442) at android.view.View.dispatchTouchEvent(View.java:11721) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2961) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2593) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2961) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2593) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2961) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2593) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2961) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2593) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2961) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2593) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2961) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2593) at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:445) at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1828) at android.app.Activity.dispatchTouchEvent(Activity.java:3292) at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:68) at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:407) at android.view.View.dispatchPointerEvent(View.java:11960) at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4776) at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4590) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4128) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4181) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4147) at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4274) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4155) at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4331) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4128) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4181) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4147) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4155) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4128) at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6642) at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6616) at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6577) at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6745) at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185) at android.os.MessageQueue.nativePollOnce(Native Method) at android.os.MessageQueue.next(MessageQueue.java:325) at android.os.Looper.loop(Looper.java:142) at android.app.ActivityThread.main(ActivityThread.java:6541) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

this is my xml code
<com.andrognito.patternlockview.PatternLockView app:dotCount="3" app:aspectRatio="square" android:layout_gravity="center_horizontal" android:id="@+id/pattern_lock_view" android:layout_width="250dp" android:layout_height="250dp"/>