diff --git a/proguard.config b/proguard.config
index 5a4eb3f5..3af62544 100644
--- a/proguard.config
+++ b/proguard.config
@@ -1,23 +1,53 @@
+-allowaccessmodification
+-printmapping map.txt
+-printseeds seeds.txt
+-printusage unused.txt
+-optimizationpasses 5
+-dontusemixedcaseclassnames
+-dontskipnonpubliclibraryclasses
+-dontpreverify
+-verbose
+
 -keep public class * extends android.app.Activity
 -keep public class * extends android.app.Application
--keep public class * extends android.view.View
--keep public class * extends android.app.Service 
--keep public class * extends android.content.BroadcastReceiver 
--keep public class * extends android.content.ContentProvider 
--keep public class * extends android.view.ViewGroup
--keep public class * extends android.preference.Preference {
-public <init>(android.content.Context, android.util.AttributeSet); 
+-keep public class * extends android.app.Service
+-keep public class * extends android.content.BroadcastReceiver
+-keep public class * extends android.content.ContentProvider
+-keep public class * extends android.app.backup.BackupAgentHelper
+-keep public class * extends android.preference.Preference
+
+-keepclasseswithmembernames class * {
+    native <methods>;
+}
+
+-keepclasseswithmembers class * {
+    public <init>(android.content.Context, android.util.AttributeSet);
+}
+
+-keepclasseswithmembers class * {
+    public <init>(android.content.Context, android.util.AttributeSet, int);
+}
+
+-keepclassmembers class * extends android.app.Activity {
+   public void *(android.view.View);
+}
+
+-keepclassmembers enum * {
+    public static **[] values();
+    public static ** valueOf(java.lang.String);
+}
+
+-keep class * implements android.os.Parcelable {
+    public static final android.os.Parcelable$Creator *;
+}
+
+-assumenosideeffects class android.util.Log {
+    public static *** d(...);
+    public static *** v(...);
+    public static *** i(...);
+    public static *** w(...);
+}
+
+-assumenosideeffects class java.lang.String {
+	public *** format(...);
 }
--keep public class * extends android.view.View { 
-public <init>(android.content.Context); 
-public <init>(android.content.Context, android.util.AttributeSet); 
-public <init>(android.content.Context, android.util.AttributeSet, int); 
-} 
--dontskipnonpubliclibraryclasses
--verbose
--dontpreverify
--optimizationpasses 5
--flattenpackagehierarchy
--printmapping map.txt
--printseeds seeds.txt 
--printusage unused.txt