Add proguard

swipeback/build.gradle

@@ -8,8 +8,8 @@ android {
     defaultConfig {
         minSdkVersion 9
         targetSdkVersion 22
-        versionCode 1
-        versionName "1.0"
+
+        consumerProguardFiles 'proguard-rules.pro'
     }
 }
 

swipeback/proguard-rules.pro

@@ -1,17 +1,3 @@
-# Add project specific ProGuard rules here.
-# By default, the flags in this file are appended to flags specified
-# in /Users/YoKeyword/Documents/android-sdk-macosx/tools/proguard/proguard-android.txt
-# You can edit the include path and order by changing the proguardFiles
-# directive in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# Add any project specific keep options here:
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
+-keepclassmembers class android.support.v4.widget.ViewDragHelper {
+    private <fields>;
+}