[and] Germany missing icons fix.

android/gradle.properties

@@ -1,6 +1,6 @@
-GWMvc=122
-GWMvn=1.2.2
-GWMpn=com.guidewithme.hawaii
-GWMapk=Test GuideWithMe
-GWMappName=Test GuideWithMe
+GWMvc=123
+GWMvn=1.2.3
+GWMpn=com.guidewithme.germany
+GWMapk=GuideWithMe Germany
+GWMappName=GuideWithMe Germany
 GWMndkFlags=propNdkFlags=V=0 NDK_DEBUG=0

android/src/com/guidewithme/thumb/ZipThumbnailsProvider.java

@@ -2,12 +2,17 @@ package com.guidewithme.thumb;
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Enumeration;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
 import android.content.Context;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
+import android.util.Log;
+
+import com.guidewithme.util.CollectionUtils;
+import com.guidewithme.util.CollectionUtils.Predicate;
 
 public class ZipThumbnailsProvider implements ThumbnailsProvider
 {
@@ -27,12 +32,29 @@ public class ZipThumbnailsProvider implements ThumbnailsProvider
     }
   }
 
+  @SuppressWarnings("unchecked")
   @Override
   public Drawable getThumbnailByUrl(String url)
   {
     try
     {
-      final ZipEntry ze = mZFile.getEntry("data/thumb/" + url);
+      final String thumbsPrefix = "data/thumb/";
+      ZipEntry ze = mZFile.getEntry(thumbsPrefix + url);
+      if (ze == null)
+      {
+        Log.e("GWM " + mContext.getPackageName(), "null entry:" + url);
+
+        // Provide random icon in that case
+        final Predicate<ZipEntry> isThumbEntry = new Predicate<ZipEntry>()
+        {
+          @Override
+          public boolean apply(ZipEntry arg)
+          {
+            return arg.getName().startsWith(thumbsPrefix);
+          }
+        };
+        ze = CollectionUtils.any(CollectionUtils.filter((Enumeration<ZipEntry>)mZFile.entries(), isThumbEntry));
+      }
       final InputStream is = mZFile.getInputStream(ze);
       return new BitmapDrawable(mContext.getResources(), is);
     }

android/src/com/guidewithme/util/CollectionUtils.java

@@ -0,0 +1,40 @@
+package com.guidewithme.util;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.NoSuchElementException;
+
+public class CollectionUtils
+{
+  public interface Predicate<T>
+  {
+    boolean apply(T arg);
+  }
+
+  public static <T> List<T> filter(Collection<T> input, Predicate<T> condition)
+  {
+    final ArrayList<T> out = new ArrayList<T>(input.size());
+    for (final T val : input)
+    {
+      if (condition.apply(val))
+        out.add(val);
+    }
+    return out;
+  }
+
+  public static <T> List<T> filter(Enumeration<T> input, Predicate<T> condition)
+  {
+    return filter(Collections.list(input), condition);
+  }
+
+  public static <T> T any(List<T> input)
+  {
+    if (input.isEmpty())
+      throw new NoSuchElementException("Input collection is empty");
+
+    return input.get(Utils.random(input.size()));
+  }
+}

android/src/com/guidewithme/util/Utils.java

@@ -4,6 +4,7 @@ import java.io.File;
 import java.math.RoundingMode;
 import java.text.DecimalFormat;
 import java.text.NumberFormat;
+import java.util.Random;
 
 import android.app.Activity;
 import android.content.Context;
@@ -26,6 +27,11 @@ public class Utils
     return view;
   }
 
+  public static int random(int max)
+  {
+    return new Random().nextInt(max);
+  }
+
   public static View showView(View view)
   {
     view.setVisibility(View.VISIBLE);