Add fade out animation in marker detail view

MyTracks/res/anim/fadeout.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2013 Google Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+<alpha xmlns:android="http://schemas.android.com/apk/res/android"
+  android:duration="2000"
+  android:fromAlpha="1.0"
+  android:interpolator="@android:anim/linear_interpolator"
+  android:toAlpha="0.0" />

MyTracks/src/com/google/android/apps/mytracks/fragments/MarkerDetailFragment.java

@@ -43,6 +43,9 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.animation.Animation;
+import android.view.animation.Animation.AnimationListener;
+import android.view.animation.AnimationUtils;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
@@ -77,8 +80,23 @@ public class MarkerDetailFragment extends Fragment {
   private Runnable hideText = new Runnable() {
       @Override
     public void run() {
-      textGradient.setVisibility(View.GONE);
-      waypointInfo.setVisibility(View.GONE);
+      Animation animation = AnimationUtils.loadAnimation(getActivity(), R.anim.fadeout);
+      animation.setAnimationListener(new AnimationListener() {
+
+          @Override
+        public void onAnimationStart(Animation anim) {}
+
+          @Override
+        public void onAnimationRepeat(Animation anim) {}
+
+          @Override
+        public void onAnimationEnd(Animation anim) {
+          textGradient.setVisibility(View.GONE);
+          waypointInfo.setVisibility(View.GONE);
+        }
+      });
+      textGradient.startAnimation(animation);
+      waypointInfo.startAnimation(animation);
     }
   };
 
@@ -222,6 +240,7 @@ public class MarkerDetailFragment extends Fragment {
         textGradient.setVisibility(View.GONE);
         waypointInfo.setVisibility(View.VISIBLE);
       } else {
+        handler.removeCallbacks(hideText);
         photo.setVisibility(View.VISIBLE);
         textGradient.setVisibility(View.VISIBLE);
         waypointInfo.setVisibility(View.VISIBLE);