Error when screengrab is made in a Material Dialog

[digobaptista]

I am having an issue screen grabbing when a Material Dialog (https://github.com/afollestad/material-dialogs) is shown. Here is the detailed log:

[17:04:16]: ▸ com.xxx.xxx.Test:..
[17:04:16]: ▸ Error in shouldXXX(com.xxx.xxx.Test):
[17:04:16]: ▸ java.lang.ClassCastException: android.view.ContextThemeWrapper cannot be cast to android.app.Activity
[17:04:16]: ▸ at tools.fastlane.screengrab.Screengrab$1.perform(Screengrab.java:77)
[17:04:16]: ▸ at android.support.test.espresso.ViewInteraction$1.run(ViewInteraction.java:144)
[17:04:16]: ▸ at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
[17:04:16]: ▸ at java.util.concurrent.FutureTask.run(FutureTask.java:237)
[17:04:16]: ▸ at android.os.Handler.handleCallback(Handler.java:739)
[17:04:16]: ▸ at android.os.Handler.dispatchMessage(Handler.java:95)
[17:04:16]: ▸ at android.os.Looper.loop(Looper.java:135)
[17:04:16]: ▸ at android.app.ActivityThread.main(ActivityThread.java:5254)
[17:04:16]: ▸ at java.lang.reflect.Method.invoke(Native Method)
[17:04:16]: ▸ at java.lang.reflect.Method.invoke(Method.java:372)
[17:04:16]: ▸ at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
[17:04:16]: ▸ at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
[17:04:26]: ▸ .
[17:04:26]: ▸ Time: 39.824
[17:04:26]: ▸ There was 1 failure:
[17:04:26]: ▸ 1) shouldTakeScreenshotInputDestination(com.xxx.xxx.Test)
[17:04:26]: ▸ java.lang.ClassCastException: android.view.ContextThemeWrapper cannot be cast to android.app.Activity
[17:04:26]: ▸ at tools.fastlane.screengrab.Screengrab$1.perform(Screengrab.java:77)
[17:04:26]: ▸ at android.support.test.espresso.ViewInteraction$1.run(ViewInteraction.java:144)
[17:04:26]: ▸ at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
[17:04:26]: ▸ at java.util.concurrent.FutureTask.run(FutureTask.java:237)
[17:04:26]: ▸ at android.os.Handler.handleCallback(Handler.java:739)
[17:04:26]: ▸ at android.os.Handler.dispatchMessage(Handler.java:95)
[17:04:26]: ▸ at android.os.Looper.loop(Looper.java:135)
[17:04:26]: ▸ at android.app.ActivityThread.main(ActivityThread.java:5254)
[17:04:26]: ▸ at java.lang.reflect.Method.invoke(Native Method)
[17:04:26]: ▸ at java.lang.reflect.Method.invoke(Method.java:372)
[17:04:26]: ▸ at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
[17:04:26]: ▸ at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
[17:04:26]: ▸ FAILURES!!!
[17:04:26]: ▸ Tests run: 4,  Failures: 1

[mfurtak]

Hi @digobaptista - Thanks for the report 👍

We actually just did a screengrab release 📷✨ yesterday which might have a fix for your problem. If you aren't already on v0.2.1 of the gem and the Android library, can you update those and let me know what you see?

[digobaptista]

@mfurtak This issue was reproduced with screengrab version 0.2.1 . Any idea why this is happening?

[mfurtak]

@digobaptista Hm, can you post a new stack trace from Android? Is it the same as before?

In addition to updating the gem, did you also update the dependency in your build.gradle?

androidTestCompile 'tools.fastlane:screengrab:0.2.1'

[digobaptista]

@mfurtak After updating the dependency in my build.gradle the error is gone, but whenever I do a screengrab from a Material Dialog, it generates a png containing the view behind the Material Dialog.

[mfurtak]

OK, I suspect that this is a limitation of how we capture screenshots right now. #72 and #75 are other manifestations of this problem. Please keep an eye on those tickets for news about when we improve our capture method. 👍

[digobaptista]

@mfurtak Thank you for the quick feedback, I'll keep an eye on those issues also.

[fastlanebot]

This issue was migrated to fastlane/fastlane#2078. Please post all further comments there.

fastlane is now a mono repo, you can read more about the change in our blog post. All tools are now available in the fastlane main repo 🚀