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LessonThumbnailImageView causes a "Render Problem" in Android studio

See original GitHub issue

Describe the bug The custom view LessonThumbnailImageView is causing a rendering problem in android studio when it is used in a layout file.
If it is used in some layout file, you will not be able to see the layout preview.

To Reproduce Steps to reproduce the behavior:

Open Android Studio
Go to any xml file that contains LessonThumbnailImageView (e.g. ongoing_story_card.xml)
You will not be able to see the preview of the layout

Error Log

java.lang.IllegalStateException: View org.oppia.app.customview.LessonThumbnailImageView{79d58923 V.ED..... ......I. 0,0-0,0 #7f09016e app:id/lesson_thumbnail} does not have a Fragment set
	at androidx.fragment.app.FragmentManager.findFragment(FragmentManager.java:799)
	at org.oppia.app.customview.LessonThumbnailImageView.onAttachedToWindow(LessonThumbnailImageView.kt:101)
	at android.view.View.dispatchAttachedToWindow(View.java:19575)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3437)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3437)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3437)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3437)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3437)
	at android.view.AttachInfo_Accessor.setAttachInfo(AttachInfo_Accessor.java:42)
	at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:335)
	at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:396)
	at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:209)
	at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:608)
	at com.android.tools.idea.rendering.RenderTask.lambda$inflate$6(RenderTask.java:734)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

Expected behavior The preview should work correctly

Screenshots Screenshot from 2020-08-15 14-59-21

Issue Analytics

State:
Created 3 years ago
Comments:14 (14 by maintainers)

Top GitHub Comments

1reaction

rt4914commented, Oct 7, 2020

@ARJUPTA Thanks for mentioning this.

1reaction

Arjuptacommented, Oct 6, 2020

@MohamedMedhat1998 I just wanted to add one thing that, while trying to find a solution for this issue, I tried to re-type the whole LessonThumbnailImageView block of XML after removing it (removed it to check whether the other views are rendering correctly). While retyping this block of XML I saw all the views being rendered normally, but if the layout file is opened again then this issue arises.

I just mentioned this because it might be helpful to you.