made CUnityAndroidActivity opaque and fixed about layout.setBackgroundColor().

Author: KojiNakamaru

plugins/Android/webview-nofragment/src/main/java/net/gree/unitywebview/CUnityPlayerActivity.java

@@ -1,5 +1,6 @@
 package net.gree.unitywebview;
 
+import android.graphics.Color;
 import android.graphics.Rect;
 import android.os.Bundle;
 import android.util.Log;
@@ -15,6 +16,13 @@ public class CUnityPlayerActivity
     private List<WebView> _webViews = new ArrayList<WebView>();
     private List<Rect> _masks = new ArrayList<Rect>();
 
+    @Override
+    protected void onCreate(Bundle savedInstanceState)
+    {
+        super.onCreate(savedInstanceState);
+        getWindow().getDecorView().setBackgroundColor(Color.BLACK);
+    }
+
     @Override
     public boolean dispatchTouchEvent(MotionEvent event) {
         boolean ret = super.dispatchTouchEvent(event);

plugins/Android/webview-nofragment/src/main/java/net/gree/unitywebview/CWebViewPlugin.java

@@ -619,7 +619,7 @@ public void Destroy() {
             webView.stopLoading();
             if (mVideoView != null) {
                 layout.removeView(mVideoView);
-                layout.setBackgroundColor(0x00000000);
+                layout.setBackgroundColor(0xff000000);
                 mVideoView = null;
             }
             layout.removeView(webView);

plugins/Android/webview/src/main/java/net/gree/unitywebview/CUnityPlayerActivity.java

@@ -1,5 +1,6 @@
 package net.gree.unitywebview;
 
+import android.graphics.Color;
 import android.graphics.Rect;
 import android.os.Bundle;
 import android.util.Log;
@@ -15,6 +16,13 @@ public class CUnityPlayerActivity
     private List<WebView> _webViews = new ArrayList<WebView>();
     private List<Rect> _masks = new ArrayList<Rect>();
 
+    @Override
+    protected void onCreate(Bundle savedInstanceState)
+    {
+        super.onCreate(savedInstanceState);
+        getWindow().getDecorView().setBackgroundColor(Color.BLACK);
+    }
+
     @Override
     public boolean dispatchTouchEvent(MotionEvent event) {
         boolean ret = super.dispatchTouchEvent(event);

plugins/Android/webview/src/main/java/net/gree/unitywebview/CWebViewPlugin.java

@@ -937,7 +937,7 @@ public void Destroy() {
             webView.stopLoading();
             if (mVideoView != null) {
                 layout.removeView(mVideoView);
-                layout.setBackgroundColor(0x00000000);
+                layout.setBackgroundColor(0xff000000);
                 mVideoView = null;
             }
             layout.removeView(webView);