Update AnimatedGradient example app to react-native 0.39.2

Examples/AnimatedGradient/android/app/src/main/java/com/animatedgradient/MainActivity.java

@@ -1,13 +1,6 @@
 package com.animatedgradient;
 
-import com.BV.LinearGradient.LinearGradientPackage;
-
 import com.facebook.react.ReactActivity;
-import com.facebook.react.ReactPackage;
-import com.facebook.react.shell.MainReactPackage;
-
-import java.util.Arrays;
-import java.util.List;
 
 public class MainActivity extends ReactActivity {
 
@@ -19,25 +12,4 @@ public class MainActivity extends ReactActivity {
     protected String getMainComponentName() {
         return "AnimatedGradient";
     }
-
-    /**
-     * Returns whether dev mode should be enabled.
-     * This enables e.g. the dev menu.
-     */
-    @Override
-    protected boolean getUseDeveloperSupport() {
-        return BuildConfig.DEBUG;
-    }
-
-    /**
-     * A list of packages used by the app. If the app uses additional views
-     * or modules besides the default ones, add more packages here.
-     */
-    @Override
-    protected List<ReactPackage> getPackages() {
-        return Arrays.<ReactPackage>asList(
-            new MainReactPackage(),
-            new LinearGradientPackage()
-        );
-    }
 }

Examples/AnimatedGradient/android/app/src/main/java/com/animatedgradient/MainApplication.java

@@ -0,0 +1,44 @@
+package com.animatedgradient;
+
+import android.app.Application;
+import android.util.Log;
+
+import com.facebook.react.ReactApplication;
+import com.BV.LinearGradient.LinearGradientPackage;
+import com.facebook.react.ReactInstanceManager;
+import com.facebook.react.ReactNativeHost;
+import com.facebook.react.ReactPackage;
+import com.facebook.react.shell.MainReactPackage;
+import com.facebook.soloader.SoLoader;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class MainApplication extends Application implements ReactApplication {
+
+  private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) {
+    @Override
+    protected boolean getUseDeveloperSupport() {
+      return BuildConfig.DEBUG;
+    }
+
+    @Override
+    protected List<ReactPackage> getPackages() {
+      return Arrays.<ReactPackage>asList(
+          new MainReactPackage(),
+            new LinearGradientPackage()
+      );
+    }
+  };
+
+  @Override
+  public ReactNativeHost getReactNativeHost() {
+    return mReactNativeHost;
+  }
+
+  @Override
+  public void onCreate() {
+    super.onCreate();
+    SoLoader.init(this, /* native exopackage */ false);
+  }
+}