add proguard

Author: ChillingVan

build.gradle

@@ -25,7 +25,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.android.tools.build:gradle:2.3.1'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

canvasgl/build.gradle

@@ -28,16 +28,24 @@ android {
     defaultConfig {
         minSdkVersion 14
         targetSdkVersion 25
-        versionCode 102002
-        versionName "1.2.1.0"
+        versionCode 102011
+        versionName "1.2.1.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+
+    lintOptions {
+        checkReleaseBuilds false
+        // Or, if you prefer, you can continue to check for errors in release builds,
+        // but continue the build even when errors are found:
+        abortOnError false
+    }
+
 }
 
 dependencies {

canvasgl/proguard-rules.pro

@@ -15,3 +15,71 @@
 #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
 #   public *;
 #}
+
+
+-dontpreverify
+-repackageclasses ''
+-allowaccessmodification
+-optimizations !code/simplification/arithmetic
+-keepparameternames
+-renamesourcefileattribute SourceFile
+-keepattributes Exceptions,InnerClasses,Signature,Deprecated, SourceFile,LineNumberTable,*Annotation*,EnclosingMethod
+
+-keep public class * {
+      public protected *;
+}
+
+-keepclassmembernames class * {
+    java.lang.Class class$(java.lang.String);
+    java.lang.Class class$(java.lang.String, boolean);
+}
+
+-keepclasseswithmembernames,includedescriptorclasses class * {
+    native <methods>;
+}
+
+-keepclassmembers,allowoptimization enum * {
+    public static **[] values(); public static ** valueOf(java.lang.String);
+}
+
+-keepclassmembers class * implements java.io.Serializable {
+    static final long serialVersionUID;
+    private static final java.io.ObjectStreamField[] serialPersistentFields;
+    private void writeObject(java.io.ObjectOutputStream);
+    private void readObject(java.io.ObjectInputStream);
+    java.lang.Object writeReplace();
+    java.lang.Object readResolve();
+}
+
+-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);
+      public void set*(...);
+}
+
+
+-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.content.Context {
+    public void *(android.view.View);
+    public void *(android.view.MenuItem);
+}
+
+-keepclassmembers class * implements android.os.Parcelable {
+    static ** CREATOR;
+}
+
+-keepclassmembers class **.R$* {
+    public static <fields>;
+}
+
+-keepclassmembers class * {
+    @android.webkit.JavascriptInterface <methods>;
+}

canvasglsample/build.gradle

@@ -40,6 +40,13 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    lintOptions {
+        checkReleaseBuilds false
+        // Or, if you prefer, you can continue to check for errors in release builds,
+        // but continue the build even when errors are found:
+        abortOnError false
+    }
+
 }
 
 repositories {