Support for zipped icon packs

- Added support for zipped icon pack files (iconpack*.zip)
- Added support for multiple appnames*.txt files

Assets/Plugins/Android/AppInfo.java

@@ -7,11 +7,18 @@ import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.PackageInfo;
 import android.content.pm.FeatureInfo;
 import android.content.pm.ApplicationInfo;
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
 import android.os.Bundle;
 import android.util.Log;
 import android.graphics.Bitmap;
 import android.graphics.drawable.BitmapDrawable;
-import java.io.ByteArrayOutputStream;
 import java.util.List;
 import java.util.LinkedList;
 
@@ -88,4 +95,46 @@ public class AppInfo extends UnityPlayerActivity {
         byte[] byteArray = stream.toByteArray();
         return byteArray;
     }
+
+    public static void unzip(String zipFileName, String targetPath) {
+
+        File outDir = new File(targetPath);
+
+        // Create target path if not exist
+        createDirIfNotExist(outDir);
+
+        byte[] buffer = new byte[8192];
+        try (FileInputStream fis = new FileInputStream(zipFileName);
+                BufferedInputStream bis = new BufferedInputStream(fis);
+                ZipInputStream stream = new ZipInputStream(bis)) {
+
+            ZipEntry entry = null;
+            while ((entry = stream.getNextEntry()) != null) {
+
+                File filePath = new File(outDir, entry.getName());
+                Log.v(TAG, "Unzipping " + filePath);
+
+                if (entry.isDirectory()) {
+                    // Create dir if required while unzipping
+                    createDirIfNotExist(filePath);
+                } else {
+                    try (FileOutputStream fos = new FileOutputStream(filePath);
+                            BufferedOutputStream bos = new BufferedOutputStream(fos, buffer.length)) {
+                        int len;
+                        while ((len = stream.read(buffer)) > 0) {
+                            bos.write(buffer, 0, len);
+                        }
+                    }
+                }
+            }
+        } catch (Exception e) {
+            System.out.println(e);
+        }
+    }
+
+    private static void createDirIfNotExist(File path) {
+        if (!path.exists()) {
+            path.mkdirs();
+        }
+    }
 }