2 files changed, 5 insertions, 1 deletions
diff --git a/Android.mk b/Android.mk
index b11f5cf..cbd3249 100644
--- a/Android.mk
+++ b/Android.mk
@@ -8,7 +8,7 @@ LOCAL_SRC_FILES := $(call all-java-files-under, src)
 LOCAL_PACKAGE_NAME := Camera
 LOCAL_CERTIFICATE := media
 
-LOCAL_PROGUARD_ENABLED := disabled
+LOCAL_PROGUARD_FLAGS := -include $(LOCAL_PATH)/proguard.flags
 
 include $(BUILD_PACKAGE)
 
diff --git a/proguard.flags b/proguard.flags
new file mode 100644
index 0000000..d1b41b1
--- /dev/null
+++ b/proguard.flags
@@ -0,0 +1,4 @@
+# ctors of subclasses of CameraPreference are called with Java reflection.
+-keep class * extends com.android.camera.CameraPreference {
+  <init>(...);
+}