White screen in release APK in android 11 only

[vitulgoyani]

when i run release apk it is show white screen and in debug mode is work well

[binSaed]

if release APK not working in all android version look to this secation https://github.com/AbdOoSaed/flutter_cached_pdfview#for-production-usage

[vitulgoyani]

Not solved, the same issue even I add this progaurd and make release build according to your link

[binSaed]

please try to run the example app and let me know download the whole project not only dart files only

https://github.com/AbdOoSaed/flutter_cached_pdfview/tree/master/example

[RohithKilaparthi]

same issue

[binSaed]

same comment

please try to run the example app and let me know download the whole project not only dart files only

https://github.com/AbdOoSaed/flutter_cached_pdfview/tree/master/example

[vitulgoyani]

yes your code is working but at release mode, I can't test and I use another plugin there is also the same issue so maybe it is PDF related issue it is work in older version but in android 11 it is show white screen

[ghost]

same issue

[vitulgoyani]

Does anyone have a solution or alternative?

[binSaed]

I test it with android 11 and it worked perfectly please download this app and try view pdf and let me know

https://play.google.com/store/apps/details?id=com.Suhaib_Digital_Base

https://user-images.githubusercontent.com/33700292/125340588-ebee0480-e352-11eb-9559-dea47b13c69e.mp4

[vitulgoyani]

your app is working fine

[nhat108]

@vitulgoyani try this solution, it's working: https://github.com/arnaudelub/flutter_fullpdfview/issues/21#issuecomment-826481409

[vitulgoyani]

your link is not working @AbdOoSaed

[nhat108]

@vitulgoyani did you add this line yet? i was faced your problem and solved

[saelco]

Flutter Wrapper

-keep class io.flutter.app. { *; } -keep class io.flutter.plugin.* { ; } -keep class io.flutter.util. { *; } -keep class io.flutter.view. { *; } -keep class io.flutter.* { ; } -keep class io.flutter.plugins. { *; } -keep class com.shockwave.* { ; }

and in build.gradle:

buildTypes { release { // TODO: Add your own signing config for the release build. // Signing with the debug keys for now, so flutter run --release works. signingConfig signingConfigs.debug minifyEnabled true useProguard true proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } }

[mb-auh]

I've got the same problem in both debug and release build. I wasn't using ProGuard in the first place but @saelco sadly your suggestions did not help fix the problem even after enabling it. @AbdOoSaed I looked at the sample code of your app and I cannot find any significant differences regarding this behavior. @saelco @AbdOoSaed Which version of flutter are you using?

[EugenEistrach]

I have same issue, also not using proguard at all. Release apk does not work (white screen) but debug apk no issues.

[wladrbarbosa]

I have same issue, but in my case neither debug nor release doesn't work.

[vitulgoyani]

This is work for me

buildTypes {
        release {
            signingConfig signingConfigs.release
            minifyEnabled true
            shrinkResources true
            useProguard true
            proguardFiles getDefaultProguardFile(
                    'proguard-android-optimize.txt'),
                    'proguard-rules.pro'
        }
    }

and this is my proguard file, put this file in android/app/

proguard-rules.pro.zip

[binSaed]

Thanks @vitulgoyani

it is the same as Example project https://github.com/AbdOoSaed/flutter_cached_pdfview/blob/804ee6adbabecb6602391339c5c46f4abdcb3a58/example/android/app/build.gradle#L48

https://github.com/AbdOoSaed/flutter_cached_pdfview/blob/804ee6adbabecb6602391339c5c46f4abdcb3a58/example/android/app/proguard-rules.pro#L1

[vitulgoyani]

Thanks @vitulgoyani

it is the same as Example project

https://github.com/AbdOoSaed/flutter_cached_pdfview/blob/804ee6adbabecb6602391339c5c46f4abdcb3a58/example/android/app/build.gradle#L48

https://github.com/AbdOoSaed/flutter_cached_pdfview/blob/804ee6adbabecb6602391339c5c46f4abdcb3a58/example/android/app/proguard-rules.pro#L1

this is different -keep class com.shockwave.* { ; }

[lngvnsang]

-keep class com.shockwave.* { ; }

Thanks, This is work for me!

remove 'useProguard true' if got error