java.lang.IllegalAccessException RenderingProblems

[nextkaki]

Xml File Set Inner
<com.woxthebox.draglistview.DragListView
android:id="@+id/lv_academy"
android:layout_width="match_parent"
android:layout_height="match_parent" />

Error Content

Rendering Problems
java.lang.IllegalAccessException: Class com.android.layoutlib.bridge.util.ReflectionUtils can not access a member of class com.woxthebox.draglistview.DragItemRecyclerView with modifiers "public"   at java.lang.reflect.AccessibleObject.slowCheckMemberAccess(AccessibleObject.java:296)   at java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:288)   at java.lang.reflect.Method.invoke(Method.java:490)   at com.android.layoutlib.bridge.util.ReflectionUtils.invoke(ReflectionUtils.java:45)   at com.android.layoutlib.bridge.android.support.RecyclerViewUtil.setProperty(RecyclerViewUtil.java:126)   at com.android.layoutlib.bridge.android.support.RecyclerViewUtil.setProperty(RecyclerViewUtil.java:120)   at com.android.layoutlib.bridge.android.support.RecyclerViewUtil.setLayoutManager(RecyclerViewUtil.java:78)   at com.android.layoutlib.bridge.android.support.RecyclerViewUtil.setAdapter(RecyclerViewUtil.java:59)   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)   at android.view.LayoutInflater.inflate(LayoutInflater.java:492)   at android.view.LayoutInflater.inflate(LayoutInflater.java:423)   at com.woxthebox.draglistview.DragListView.createRecyclerView   ... (DragListView.java:131)   at com.woxthebox.draglistview.DragListView.onFinishInflate(DragListView.java:94)

Maybe private or Protectd -> public change?

[abe-shek]

This is something similar to what I am facing. Would really appreciate some or any help regarding the same.

[woxblom]

Hm this feels like a proguard problem. Have you added a rule like it it written in the readme?

I'm on vacation now so I can be at bit slow to answer.

[abe-shek]

Hey, sorry to bug you over on your vacation, but as it seems I did add the proguard rules earlier only.

[woxblom]

Hm ok. Could you please make a small test app where the crash is reproducible and mail it to me and I will investigate it.

woxthebox@gmail.com

[abe-shek]

No, it's not like the app is crashing but more like the dragList is not updating with any values, none whatsoever.
I have the dragListView as a child to a FrameLayout, which itself is a child in a hierarchy of Layouts.
But, even is I use the DragList widget to define a seldom list under a single parent Layout, it gives the same "rendering error", displaying nothing but the default(/custom) background set for the app theme.

[woxblom]

Ok, it is hard for me to figure put what the problem is without a test app to debug. So please make a test app with the same layout structure and same problem and mail me and I will check it out.

[abe-shek]

Ok, I got it to work. I omitted a key method while creating the itemAdapter and it wasn't linking to the current(or any) item.
Thanks for your time though, and apologies for causing trouble whilst on your vacation. :)

[nghiavkht]

I got same problem, Android studio could not render xml file in the preview area, code is still built and run as well.
This also happens in Demo project.
Wish you have great vacation!

[woxblom]

Ok, so it is only in the preview area you have a problem now? Building and running the app works fine?

[nextkaki]

I am English for beginners.
Yes. it is only in the preview area Rendering Problems. Ok?

1. Building Ok. Redering Problems It is still.
2. Building and running app Ok. Rendering Problems It is still.
3. It is possible to run normally. then. Preview Rendering Problems +
   Preview API 23, Automatically No Check,

Now do you simply need to send an application?(Google Translate)

[abe-shek]

Yeah, the preview area is the problem and honestly it doesn't matter. The app works just fine!

[woxblom]

Ok, I will look into the preview area when I get home from vacation.

[woxblom]

I looked into the problem and even if I change the DragItemRecyclerView to public I run into other reflection problems with the preview area.

java.lang.reflect.InvocationTargetException   at java.lang.reflect.Method.invoke(Method.java:497)   at com.android.layoutlib.bridge.util.ReflectionUtils.invoke(ReflectionUtils.java:45)   at com.android.layoutlib.bridge.android.support.RecyclerViewUtil.setProperty(RecyclerViewUtil.java:126)   at com.android.layoutlib.bridge.android.support.RecyclerViewUtil.setProperty(RecyclerViewUtil.java:120)   at com.android.layoutlib.bridge.android.support.RecyclerViewUtil.setAdapter(RecyclerViewUtil.java:62)   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:727)   at android.view.LayoutInflater.inflate(LayoutInflater.java:495)   at android.view.LayoutInflater.inflate(LayoutInflater.java:426)   at com.woxthebox.draglistview.DragListView.createRecyclerView   ... (DragListView.java:131)   at com.woxthebox.draglistview.DragListView.onFinishInflate(DragListView.java:94)

It is when they try to setup the adapter "setProperty(recyclerView, CN_ADAPTER, adapter, "setAdapter");" which the problem arises. I guess it is because I subclass the RecyclerView. I don't really know how to fix this problem.
Also since this is just a preview area problem I don't see it as a critical bug. I will be closing this bug now and if anyone wants to help to dig into the problem please do! :)

[nextkaki]

Who do you finding a bug?

[woxblom]

Hum I don't understand you question.