diff --git a/README.md b/README.md
index 6472b7a..a001608 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [Smooth Bézier Spline Through Prescribed Points](https://www.particleincell.com/2012/bezier-splines/) for Android Platform.
 
-Helps to simulate curves such as `Sine Curve`, `Wave` etc...
+Helps to simulate curves such as `Sine Curve`, `Wave` etc... [Here](https://github.com/xujiaao/bezier-spline/releases/latest) is a Sample Application.
 
 ![Wave](docs/wave.gif)
 
@@ -15,7 +15,6 @@ Copy [BezierSpline.java](bezier-spline/src/main/java/com/xujiaao/android/bezier/
 private final Path mPath = new Path();
 private final Paint mPaint = new Paint();
 private final BezierSpline mBezierSpline = new BezierSpline(20);
-...
 
 @Override
 protected void onDraw(Canvas canvas) {
diff --git a/bezier-spline-sample/build.gradle b/bezier-spline-sample/build.gradle
index 10ab756..16a79f7 100644
--- a/bezier-spline-sample/build.gradle
+++ b/bezier-spline-sample/build.gradle
@@ -17,10 +17,20 @@ android {
         targetSdkVersion androidTargetSdkVersion
     }
 
+    signingConfigs {
+        sample configureKeystore('sample')
+    }
+
     buildTypes {
+        debug {
+            signingConfig signingConfigs.sample
+        }
+
         release {
-            minifyEnabled true
+            minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+
+            signingConfig signingConfigs.sample
         }
     }
 }
@@ -34,4 +44,17 @@ dependencies {
     implementation dep.libRecyclerView
 
     implementation project(':bezier-spline')
+}
+
+def configureKeystore(name) {
+    def dir = rootProject.file('keystore')
+    def properties = new Properties()
+    properties.load(new FileInputStream(new File(dir, "${name}.properties")))
+
+    return {
+        storeFile = new File(dir, "${name}.keystore")
+        storePassword = properties['KEYSTORE_PASSWORD']
+        keyAlias = properties['KEY_ALIAS']
+        keyPassword = properties['KEY_PASSWORD']
+    }
 }
\ No newline at end of file
diff --git a/keystore/sample.keystore b/keystore/sample.keystore
new file mode 100644
index 0000000..15dd09c
Binary files /dev/null and b/keystore/sample.keystore differ
diff --git a/keystore/sample.properties b/keystore/sample.properties
new file mode 100644
index 0000000..e942050
--- /dev/null
+++ b/keystore/sample.properties
@@ -0,0 +1,3 @@
+KEYSTORE_PASSWORD=sample
+KEY_ALIAS=sample
+KEY_PASSWORD=sample
\ No newline at end of file