crash on re-creating activity

[kibotu]

activity.recreate() and i get this error

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'float android.text.Layout.getLineLeft(int)' on a null object reference
       at com.hanks.htextview.base.HText$1.onGlobalLayout(HText.java:56)
       at android.view.ViewTreeObserver.dispatchOnGlobalLayout(ViewTreeObserver.java:945)
       at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2250)
       at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1392)
       at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6752)
       at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
       at android.view.Choreographer.doCallbacks(Choreographer.java:723)
       at android.view.Choreographer.doFrame(Choreographer.java:658)
       at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
       at android.os.Handler.handleCallback(Handler.java:790)
       at android.os.Handler.dispatchMessage(Handler.java:99)
       at android.os.Looper.loop(Looper.java:164)
       at android.app.ActivityThread.main(ActivityThread.java:6494)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:440)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)