Add a splash screen to the webruntime.

Bug: 2766920
Change-Id: Ie40627aa50e849b49177f79aa129242eb1d2f2a8

core/java/android/webruntime/WebRuntimeActivity.java

@@ -16,22 +16,25 @@
 
 package android.webruntime;
 
+import android.Manifest;
 import android.app.Activity;
 import android.content.Intent;
 import android.content.ComponentName;
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
-import android.Manifest;
+import android.content.res.Resources;
 import android.net.Uri;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.KeyEvent;
 import android.view.Menu;
+import android.view.View;
 import android.view.Window;
 import android.webkit.GeolocationPermissions;
 import android.webkit.WebChromeClient;
 import android.webkit.WebView;
 import android.webkit.WebViewClient;
+import android.widget.ImageView;
 import android.widget.Toast;
 
 import com.android.internal.R;
@@ -49,6 +52,7 @@ public class WebRuntimeActivity extends Activity
 
     private WebView mWebView;
     private URL mBaseUrl;
+    private ImageView mSplashScreen;
 
     /** Called when the activity is first created. */
     @Override
@@ -92,6 +96,9 @@ public class WebRuntimeActivity extends Activity
         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
         setContentView(R.layout.web_runtime);
         mWebView = (WebView) findViewById(R.id.webview);
+        mSplashScreen = (ImageView) findViewById(R.id.splashscreen);
+        mSplashScreen.setImageResource(
+                getResources().getIdentifier("splash_screen", "drawable", getPackageName()));
         mWebView.getSettings().setJavaScriptEnabled(true);
         mWebView.setWebViewClient(new WebViewClient() {
             @Override
@@ -113,6 +120,14 @@ public class WebRuntimeActivity extends Activity
                 startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
                 return true;
             }
+
+            @Override
+            public void onPageFinished(WebView view, String url) {
+                if (mSplashScreen.getVisibility() == View.VISIBLE) {
+                    mSplashScreen.setVisibility(View.GONE);
+                    mSplashScreen = null;
+                }
+            }
         });
 
         // Use a custom WebChromeClient with geolocation permissions handling to always

core/res/res/layout/web_runtime.xml

@@ -14,16 +14,23 @@
      limitations under the License.
 -->
 
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     >
-
     <WebView
         android:id="@+id/webview"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
     />
-</LinearLayout>
+
+    <ImageView
+        android:id="@+id/splashscreen"
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+        android:scaleType="fitStart"
+    />
+
+</FrameLayout>