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POonPostExecute called before doInBackground completes - Async task
 

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  1. POonPostExecute called before doInBackground completes - Async task
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    <p>i have method like this :</p> <pre><code>public void extractFiles() { AsyncTask&lt;Void, Void, Boolean&gt; extractionTask = new AsyncTask&lt;Void, Void, Boolean&gt;() { @Override protected void onPreExecute() { progressDialog = new ProgressDialog(Activity.this); progressDialog.setCancelable(false); progressDialog.setMessage("Extracting Files Please wait..."); progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); progressDialog.setProgress(0); progressDialog.show(); super.onPreExecute(); } @Override protected Boolean doInBackground(Void... params) { // TODO Auto-generated method stub String xapkFilePath = XAPKFilePath(Activity.this); String exportDirectory = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/" + Activity.this.getPackageName() + "/files/"; File exportDirectoryFilepath = new File(exportDirectory); exportDirectoryFilepath.mkdirs(); ZipHelper zhelper = new ZipHelper(); System.out.println("In background called"); zhelper.unzip(xapkFilePath, exportDirectoryFilepath); return true; } @Override protected void onPostExecute(Boolean result) { super.onPostExecute(result); if (progressDialog != null &amp;&amp; progressDialog.isShowing()) { progressDialog.dismiss(); System.out.println("progress dialog dismissed"); } if (result) { //start intent. } } }; extractionTask.execute(); } public class ZipHelper { boolean zipError = false; public boolean isZipError() { return zipError; } public void setZipError(boolean zipError) { this.zipError = zipError; } public void unzip(String archive, File outputDir) { try { Log.d("control", "ZipHelper.unzip() - File: " + archive); ZipFile zipfile = new ZipFile(archive); for (Enumeration e = zipfile.entries(); e.hasMoreElements();) { ZipEntry entry = (ZipEntry) e.nextElement(); System.out.println("OUTPUT DIR 1*" + outputDir); System.out.println("ENTRY IS " + entry); unzipEntry(zipfile, entry, outputDir); } } catch (Exception e) { Log.d("control", "ZipHelper.unzip() - Error extracting file " + archive + ": " + e); setZipError(true); } } private void unzipEntry(ZipFile zipfile, ZipEntry entry, File outputDir) throws IOException { if (entry.isDirectory()) { createDirectory(new File(outputDir, entry.getName())); return; } File outputFile = new File(outputDir, entry.getName()); if (!outputFile.getParentFile().exists()) { createDirectory(outputFile.getParentFile()); System.out.println("OUTPUT FILE IS " + outputFile.getParentFile()); } Log.d("control", "ZipHelper.unzipEntry() - Extracting: " + entry); BufferedInputStream inputStream = new BufferedInputStream(zipfile.getInputStream(entry)); BufferedOutputStream outputStream = new BufferedOutputStream(new FileOutputStream(outputFile)); try { IOUtils.copy(inputStream, outputStream); } catch (Exception e) { Log.d("control", "ZipHelper.unzipEntry() - Error: " + e); setZipError(true); } finally { outputStream.close(); inputStream.close(); } } private void createDirectory(File dir) { Log.d("control", "ZipHelper.createDir() - Creating directory: " + dir.getName()); if (!dir.exists()) { if (!dir.mkdirs()) { throw new RuntimeException("Can't create directory " + dir); } } else { Log.d("control", "ZipHelper.createDir() - Exists directory: " + dir.getName()); } } } </code></pre> <p>Here i call the method like this <code>extractFiles()</code> but what is happening is even before the doInBackground is completed that is extracting the files for which i am showing a spinner , the onPostExecute is called and moves to next screen.</p> <p>What is wrong here?</p>
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