Add new parameters in buildTypes release config

app/build.gradle

@@ -36,8 +36,11 @@ android {
 
     buildTypes {
         release {
-            minifyEnabled false
+            shrinkResources true
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.release
+            debuggable false
         }
     }