first add sdk

tools/wigadget/Android/WiGadget/app/build.gradle

@@ -0,0 +1,34 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 21
+    buildToolsVersion "21.1.2"
+
+    defaultConfig {
+        applicationId "com.realtek.amebazeroconf"
+        minSdkVersion 16
+        targetSdkVersion 21
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    packagingOptions {
+        exclude 'META-INF/LICENSE.txt'
+        exclude 'META-INF/NOTICE.txt'
+    }
+}
+
+dependencies {
+    compile fileTree(include: ['*.jar'], dir: 'libs')
+    compile 'com.android.support:appcompat-v7:21.0.3'
+    compile files('libs/commons-codec-1.6-repack.jar')
+    compile files('libs/jmdns-3.4.1.jar')
+    compile files('libs/jmdns.jar')
+    compile files('libs/firebase-client-android-2.2.4.jar')
+    compile files('libs/androidplot-core-0.6.1.jar')
+}