No audio or video from Android 12.

[efraespada]

When the meet starts, the Android device never gets audio or video. When pressing the video camera switch button (not mic) this log appears:

ExternalAPI Sending event: VIDEO_MUTED_CHANGED with data: { NativeMap: {"muted":0} }

I've only seen it in Android 12.

[efraespada]

I notice this was due to the minified flag when compiling the release build. Not a bug in the plugin.

[saibotma]

Nice to hear, that you were able to resolve the issue. Can you share what minified flag you had set, then we can add it to the documentation to inform others about this potential issue?

[efraespada]

@saibotma, without this config, any meeting in Android ends with a black screen

buildTypes {
     release {
         signingConfig signingConfigs.release
         minifyEnabled true
         shrinkResources false
         proguardFiles "${project.projectDir}/proguard-rules.pro"
     }
 }

#=== 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.dexterous.** { *; }

#=== Jitsi ===#
# Source: https://github.com/jitsi/jitsi-meet/blob/master/android/app/proguard-rules.pro
# Check above link for changes if release builds are broken again

# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.

# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in /usr/local/Cellar/android-sdk/24.3.3/tools/proguard/proguard-android.txt
# You can edit the include path and order by changing the proguardFiles
# directive in build.gradle.
#
# For more details, see
#   http://developer.android.com/guide/developing/tools/proguard.html

# Add any project specific keep options here:

# React Native

# Keep our interfaces so they can be used by other ProGuard rules.
# See http://sourceforge.net/p/proguard/bugs/466/
-keep,allowobfuscation @interface com.facebook.proguard.annotations.DoNotStrip
-keep,allowobfuscation @interface com.facebook.proguard.annotations.KeepGettersAndSetters
-keep,allowobfuscation @interface com.facebook.common.internal.DoNotStrip

# Do not strip any method/class that is annotated with @DoNotStrip
-keep @com.facebook.proguard.annotations.DoNotStrip class *
-keep @com.facebook.common.internal.DoNotStrip class *
-keepclassmembers class * {
    @com.facebook.proguard.annotations.DoNotStrip *;
    @com.facebook.common.internal.DoNotStrip *;
}

-keepclassmembers @com.facebook.proguard.annotations.KeepGettersAndSetters class * {
  void set*(***);
  *** get*();
}

-keep class * extends com.facebook.react.bridge.JavaScriptModule { *; }
-keep class * extends com.facebook.react.bridge.NativeModule { *; }
-keepclassmembers,includedescriptorclasses class * { native <methods>; }
-keepclassmembers class *  { @com.facebook.react.uimanager.UIProp <fields>; }
-keepclassmembers class *  { @com.facebook.react.uimanager.annotations.ReactProp <methods>; }
-keepclassmembers class *  { @com.facebook.react.uimanager.annotations.ReactPropGroup <methods>; }

-dontwarn com.facebook.react.**
-keep,includedescriptorclasses class com.facebook.react.bridge.** { *; }

# okhttp

-keepattributes Signature
-keepattributes InnerClasses
-keepattributes *Annotation*
-keep class okhttp3.** { *; }
-keep interface okhttp3.** { *; }
-dontwarn okhttp3.**

# okio

-keep class sun.misc.Unsafe { *; }
-dontwarn java.nio.file.*
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
-keep class okio.** { *; }
-dontwarn okio.**

# WebRTC

-keep class org.webrtc.** { *; }
-dontwarn org.chromium.build.BuildHooksAndroid

# Jisti Meet SDK

-keep class org.jitsi.meet.** { *; }
-keep class org.jitsi.meet.sdk.** { *; }

# We added the following when we switched minifyEnabled on. Probably because we
# ran the app and hit problems...

-keep class com.facebook.react.bridge.CatalystInstanceImpl { *; }
-keep class com.facebook.react.bridge.ExecutorToken { *; }
-keep class com.facebook.react.bridge.JavaScriptExecutor { *; }
-keep class com.facebook.react.bridge.ModuleRegistryHolder { *; }
-keep class com.facebook.react.bridge.ReadableType { *; }
-keep class com.facebook.react.bridge.queue.NativeRunnable { *; }
-keep class com.facebook.react.devsupport.** { *; }
-keep class com.facebook.react.modules.blob.BlobCollector { *; }

-keep class com.squareup.** { *; }

-dontwarn com.facebook.react.devsupport.**
-dontwarn com.google.appengine.**
-dontwarn com.squareup.okhttp.**
-dontwarn javax.servlet.**

# ^^^ We added the above when we switched minifyEnabled on.

# Rule to avoid build errors related to SVGs.
-keep public class com.horcrux.svg.** {*;}

# Hermes
-keep class com.facebook.hermes.unicode.** { *; }