DayPickerGroup.java line 58 com.wdullaer.materialdatetimepicker.date.DayPickerGroup.onLayout

[jrodiz]

java.lang.NullPointerException: Attempt to invoke virtual method 'int com.wdullaer.materialdatetimepicker.date.SimpleMonthView.getMonthHeight()' on a null object reference at com.wdullaer.materialdatetimepicker.date.DayPickerGroup.onLayout(DayPickerGroup.java:142) at android.view.View.layout(View.java:22398) at android.view.ViewGroup.layout(ViewGroup.java:6577) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:22398) at android.view.ViewGroup.layout(ViewGroup.java:6577) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:22398) at android.view.ViewGroup.layout(ViewGroup.java:6577) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1812) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1656) at android.widget.LinearLayout.onLayout(LinearLayout.java:1565) at android.view.View.layout(View.java:22398) at android.view.ViewGroup.layout(ViewGroup.java:6577) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1812) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1656) at android.widget.LinearLayout.onLayout(LinearLayout.java:1565) at android.view.View.layout(View.java:22398) at android.view.ViewGroup.layout(ViewGroup.java:6577) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:22398) at android.view.ViewGroup.layout(ViewGroup.java:6577) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:22398) at android.view.ViewGroup.layout(ViewGroup.java:6577) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:22398) at android.view.ViewGroup.layout(ViewGroup.java:6577) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1812) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1656) at android.widget.LinearLayout.onLayout(LinearLayout.java:1565) at android.view.View.layout(View.java:22398) at android.view.ViewGroup.layout(ViewGroup.java:6577) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at com.android.internal.policy.DecorView.onLayout(DecorView.java:1042) at android.view.View.layout(View.java:22398) at android.view.ViewGroup.layout(ViewGroup.java:6577) at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:3363) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2827) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1873) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:8478) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:949) at android.view.Choreographer.doCallbacks(Choreographer.java:761) at android.view.Choreographer.doFrame(Choreographer.java:696) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:935) at android.os.Handler.handleCallback(Handler.java:873) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:214) at android.app.ActivityThread.main(ActivityThread.java:6990) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1445)

[UnateD]

Same issue

[UnateD]

@jrodiz found a solution https://github.com/wdullaer/MaterialDateTimePicker/issues/591