optimize desugaring to remove all unused classes

app/build.gradle

@@ -76,6 +76,28 @@ android {
     }
 }
 
+afterEvaluate {
+    // Update configuration of the R8 tasks to optimize desugaring shrinker
+    def originalSetting = "\"support_all_callbacks_from_library\": true"
+    def replacementSetting = "\"support_all_callbacks_from_library\": false"
+    tasks.findAll { task -> task.getClass().getSimpleName().startsWith("R8Task") }.each { task ->
+        task.configure {
+            def patchedDesugarConfig = coreLibDesugarConfig.getProvider().map {
+                it.replace(originalSetting, replacementSetting)
+            }
+            coreLibDesugarConfig.set(patchedDesugarConfig)
+        }
+    }
+    tasks.findAll { task -> task.getClass().getSimpleName().startsWith("L8DexDesugarLibTask") }.each { task ->
+        task.configure {
+            def patchedDesugarConfig = libConfiguration.getProvider().map {
+                it.replace(originalSetting, replacementSetting)
+            }
+            libConfiguration.set(patchedDesugarConfig)
+        }
+    }
+}
+
 dependencies {
     def lifecycle_version = "2.4.0"
     def room_version = "2.4.0"