Improved permonace on android < 4.4 with gradle script.

plugin.xml

@@ -2,7 +2,7 @@
 <plugin xmlns="http://apache.org/cordova/ns/plugins/1.0"
         xmlns:android="http://schemas.android.com/apk/res/android"
         id="com.likesmagia.cordova.updater"
-        version="0.1.0">
+        version="0.9.1">
 
     <engines>
         <engine name="cordova" version=">=2.4.0" />
@@ -25,6 +25,10 @@
     <asset src="www/updater.html" target="updater.html" />
     <asset src="www/config.json" target="config.json" />
 
+    <platform name="android">
+        <framework src="updater.gradle" custom="true" type="gradleReference" />
+    </platform>
+
     <js-module src="www/updater.js" name="AppUpdater">
         <clobbers target="AppUpdater"/>
     </js-module>

updater.gradle

@@ -0,0 +1,57 @@
+/*
+       Licensed to the Apache Software Foundation (ASF) under one
+       or more contributor license agreements.  See the NOTICE file
+       distributed with this work for additional information
+       regarding copyright ownership.  The ASF licenses this file
+       to you 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.
+ */
+ext.postBuildExtras = {
+    def inAssetsDir = file("assets")
+    def outAssetsDir = inAssetsDir
+    def outFile = new File(outAssetsDir, "cdvasset.manifest")
+
+    def newTask = task("cdvCreateAssetManifest") << {
+        def contents = new HashMap()
+        def sizes = new HashMap()
+        contents[""] = inAssetsDir.list(new FilenameFilter() {
+            @Override
+            public boolean accept(File dir, String name) {
+                return !name.equals(".DS_Store");
+            }
+        })
+        def tree = fileTree(dir: inAssetsDir)
+        tree.visit { fileDetails ->
+            if (fileDetails.isDirectory()) {
+                contents[fileDetails.relativePath.toString()] = fileDetails.file.list(new FilenameFilter() {
+                    @Override
+                    public boolean accept(File dir, String name) {
+                        return !name.equals(".DS_Store");
+                    }
+                })
+            } else if (fileDetails.name) {
+                sizes[fileDetails.relativePath.toString()] = fileDetails.file.length()
+            }
+        }
+
+        outAssetsDir.mkdirs()
+        outFile.withObjectOutputStream { oos ->
+            oos.writeObject(contents)
+            oos.writeObject(sizes)
+        }
+    }
+    newTask.inputs.dir inAssetsDir
+    newTask.outputs.file outFile
+    def preBuildTask = tasks["preBuild"]
+    preBuildTask.dependsOn(newTask)
+}