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POCannot unzip file in android programmatically
 

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    <p>I'm trying to create a mobile dictionary app in android. As a part of the app I'm trying to copy the zipped database file from the assets folder to /data/data/package_name/app_database/file__0/. I'm using the below code to do this. The below code fails to unzip and copy the database to the desired location, but works fine on second time of app launch.</p> <pre><code>public class MainActivity extends DroidGap { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); try { String pName = this.getClass().getPackage().getName(); this.copy("0000000000000001.zip","/data/data/"+pName+"/app_database/file__0/"); } catch (IOException e) { e.printStackTrace(); } super.setIntegerProperty("splashscreen", R.drawable.splash); super.loadUrl("file:///android_asset/www/index.html", 10000); } void copy(String file, String folder) throws IOException { File CheckDirectory; CheckDirectory = new File(folder); if (!CheckDirectory.exists()) { CheckDirectory.mkdir(); } InputStream in = getApplicationContext().getAssets().open(file); ZipInputStream zis = new ZipInputStream(new BufferedInputStream(in)); try { ZipEntry ze; while ((ze = zis.getNextEntry()) != null) { String outputfilename = ze.getName(); OutputStream out = new FileOutputStream(folder+outputfilename); ByteArrayOutputStream baos = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int count; while ((count = zis.read(buffer)) != -1) { baos.write(buffer, 0, count); byte[] bytes = baos.toByteArray(); out.write(bytes); baos.reset(); } out.flush(); out.close(); } } finally { zis.close(); in.close(); } } </code></pre> <p>}</p> <p>Thanks in advance.</p>
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