友盟上报了这个bug

[LiWeiQiangAndroid]

java.lang.ArrayIndexOutOfBoundsException: length=1; index=-1
at me.imid.swipebacklayout.lib.ViewDragHelper.processTouchEvent(ViewDragHelper.java:1228)
at me.imid.swipebacklayout.lib.SwipeBackLayout.onTouchEvent(SwipeBackLayout.java:378)
at android.view.View.dispatchTouchEvent(View.java:11916)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2982)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2656)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2988)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2670)
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:531)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1875)
at android.app.Activity.dispatchTouchEvent(Activity.java:3469)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:68)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:68)
at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:481)
at android.view.View.dispatchPointerEvent(View.java:12155)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:5361)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:5113)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4590)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4650)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4609)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4762)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4617)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4819)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4590)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4650)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4609)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4617)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4590)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:7280)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:7254)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:7215)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:7383)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:186)
at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method)
at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:177)
at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:7354)
at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:7406)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:915)
at android.view.Choreographer.doCallbacks(Choreographer.java:727)
at android.view.Choreographer.doFrame(Choreographer.java:656)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:901)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:197)
at android.app.ActivityThread.main(ActivityThread.java:7022)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:515)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:837)