shrink apk

https://developer.android.com/topic/performance/app-optimization/enable-app-optimization

Apk is too big (blocks v22.1.0RC1 release)

• Analyze which files made it so big (262 MB). Everything needed?

• shrink apk with

  isMinifyEnabled = true
  isShrinkResources = true
  

  • related https://github.com/nextcloud/android/issues/15993

From a first try with isMinifyEnabled and isShrinkResources for Android Talk:

Missing classes detected while running R8. Please add the missing classes or apply additional keep rules that are generated in /..../talk-android/app/build/intermediates/mapping/gplayRelease/minifyGplayReleaseWithR8/missing_rules.txt.

Missing class com.google.common.base.Objects$ToStringHelper (referenced from: java.lang.String com.github.filosganga.geogson.model.AbstractGeometry.toString() and 3 other contexts)
Missing class com.google.firebase.analytics.connector.AnalyticsConnector (referenced from: boolean com.google.firebase.messaging.FirebaseMessaging.shouldRetainProxyNotifications() and 2 other contexts)
Missing class org.slf4j.impl.StaticLoggerBinder (referenced from: void org.slf4j.LoggerFactory.bind() and 3 other contexts)