title: ProGuard in Android Studio provide very weak obfuscation.
body: <p>After applying proguard to my code it's still pretty readable. Classes and packages are not renamed.  Class variables, that is all that was renamed. 
  Android Studio 2.2.3. 
  build:gradle:2.2.3</p>
  
  <p><strong>build.gradle</strong></p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
  compileSdkVersion 24
  buildToolsVersion "25.0.1"
  
  defaultConfig {
      applicationId "com.mypackagename"
      minSdkVersion 19
      targetSdkVersion 24
      versionCode 3
      versionName "1.0"
      vectorDrawables.useSupportLibrary = true
  }
  
   buildTypes {
      release {
          minifyEnabled true
          shrinkResources true
          proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
      }
  }
  
  dexOptions {
      dexInProcess = true
  }
  
     lintOptions {
      abortOnError true
      checkReleaseBuilds true
  }
  }
  
  ext {
  supportLibVersion = '25.0.1'
  playServisesVersion = '10.0.0'
  }
  
  repositories {
  maven { url "https://jitpack.io" }
  }
  
  dependencies {
  compile fileTree(dir: 'libs', include: ['*.jar'])
  compile 'com.github.PhilJay:MPAndroidChart:v2.2.5'
  compile 'org.greenrobot:eventbus:3.0.0'
  compile 'com.wdullaer:materialdatetimepicker:3.0.0'
  compile 'com.aurelhubert:ahbottomnavigation:2.0.1'
  compile "com.android.support:appcompat-v7:${supportLibVersion}"
  compile "com.android.support:cardview-v7:${supportLibVersion}"
  compile "com.android.support:design:${supportLibVersion}"
  compile "com.google.android.gms:play-services-analytics:${playServisesVersion}"
  compile "com.google.android.gms:play-services-drive:${playServisesVersion}"
  compile "com.google.firebase:firebase-ads:${playServisesVersion}"
  compile "com.google.firebase:firebase-core:${playServisesVersion}"
  compile 'com.anjlab.android.iab.v3:library:1.0.34'
  compile 'com.github.paolorotolo:appintro:4.1.0'
  compile 'net.danlew:android.joda:2.9.5.1'
  }
  apply plugin: 'com.google.gms.google-services'
  </code></pre>
  
  <p><strong>proguard-rules.pro</strong></p>
  
  <pre><code># Add project specific ProGuard rules here.
  # By default, the flags in this file are appended to flags specified
  # in C:.....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 *;
  #}
  -dontwarn com.github.mikephil.charting.**
  -keep class android.support.v7.** { *; }
  -keep class android.support.graphics.drawable.** { *; }
  </code></pre>
  
  <p><strong>Viewing my release apk</strong>
  <a href="https://i.stack.imgur.com/RUlBW.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RUlBW.jpg" alt="enter image description here"></a></p>