Only keep Parcelables if used
Use `-keepclassmembers` instead of `-keep` for Parcelable types
and their CREATOR members. This allows shrinking of Parcelable types
that aren't referenced while still preserving the necessary CREATOR
member when the classes are kept. This saves ~3MB across various
platform targets.
Bug: 238670321
Test: m + presubmit
Change-Id: I13508073dbc07e28aa93bb6604c8f838bcf72646
diff --git a/core/proguard_basic_keeps.flags b/core/proguard_basic_keeps.flags
index 38feec3..f9d2d30 100644
--- a/core/proguard_basic_keeps.flags
+++ b/core/proguard_basic_keeps.flags
@@ -53,7 +53,7 @@
# -keep class * extends android.app.BackupAgent
# Parcelable CREATORs must be kept for Parcelable functionality
--keep class * implements android.os.Parcelable {
+-keepclassmembers class * implements android.os.Parcelable {
public static final ** CREATOR;
}