disabled R8 full mode

android/app/proguard-rules.pro

@@ -4,3 +4,6 @@
 # referenced from: com.google.crypto.tink
 -dontwarn com.google.errorprone.annotations.**
 -dontwarn javax.annotation.**
+
+# report all the code that R8 removed (<output-dir> is `/build/app/outputs/mapping/[build]/`)
+-printusage <output-dir>/usage.txt

android/gradle.properties

@@ -19,6 +19,10 @@ android.defaults.buildfeatures.buildconfig=true
 android.nonTransitiveRClass=false
 android.nonFinalResIds=false
 
+# full mode is too aggressive and removes essential code
+# of `metadata-extractor` even when adding `-keep class com.drew.**{ *; }`
+android.enableR8.fullMode=false
+
 # fix for AppGallery Connect plugin which does not support yet Gradle 8
 # cf https://developer.huawei.com/consumer/en/doc/development/AppGallery-connect-Guides/agc-common-faq-0000001063210244#section17273113244910
 apmsInstrumentationEnabled=false