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PONeed help downloading a file using java in my app, it tries but quickly disappears
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copied!<p>I am trying to download a zip file and save it to the sdcard.</p> <p>I have a button with the id "download"</p> <p>When I click the button, the dialog shows up and quickly disapears.</p> <p>Here's what the code section looks like.</p> <pre><code>public static final int DIALOG_DOWNLOAD_PROGRESS = 0; private ProgressDialog mProgressDialog; public void download(View view) { switch (view.getId()) { case R.id.download: startDownload(); } } private void startDownload() { String url = "https://mydownloadurl"; new DownloadFileAsync().execute(url); } @Override protected Dialog onCreateDialog(int id) { switch (id) { case DIALOG_DOWNLOAD_PROGRESS: mProgressDialog = new ProgressDialog(this); mProgressDialog.setMessage("Downloading file.."); mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); mProgressDialog.setCancelable(false); mProgressDialog.show(); return mProgressDialog; default: return null; } } class DownloadFileAsync extends AsyncTask<String, String, String> { @Override protected void onPreExecute() { super.onPreExecute(); showDialog(DIALOG_DOWNLOAD_PROGRESS); } @Override protected String doInBackground(String... aurl) { int count; try { URL url = new URL(aurl[0]); URLConnection conexion = url.openConnection(); conexion.connect(); int lenghtOfFile = conexion.getContentLength(); Log.d("ANDRO_ASYNC", "Lenght of file: " + lenghtOfFile); InputStream input = new BufferedInputStream(url.openStream()); OutputStream output = new FileOutputStream("/sdcard/mydownload.zip"); byte data[] = new byte[1024]; long total = 0; while ((count = input.read(data)) != -1) { total += count; publishProgress("" + (int)((total * 100) / lenghtOfFile)); output.write(data, 0, count); } output.flush(); output.close(); input.close(); } catch (Exception e) { } return null; } protected void onProgressUpdate(String... progress) { Log.d("ANDRO_ASYNC",progress[0]); mProgressDialog.setProgress(Integer.parseInt(progress[0])); } @Override protected void onPostExecute(String unused) { dismissDialog(DIALOG_DOWNLOAD_PROGRESS); } </code></pre> <p>And the only thing that shows in the logcat is</p> <blockquote> <p>17586-17586/com.tyler.myapp D/qdmemalloc: ion: Mapped buffer base:0x6da9b000 size:1892352 offset:0 fd:47 17586-17586/com.tyler.myapp D/qdmemalloc: ion: Mapped buffer base:0x4002a000 size:4096 offset:0 fd:52 17586-17586/com.tyler.myapp D/OpenGLRenderer: Flushing caches (mode 0) 17586-17586/com.tyler.myapp D/qdmemalloc: ion: Unmapping buffer base:0x6da9b000 size:1892352 17586-17586/com.tyler.myapp D/qdmemalloc: ion: Unmapping buffer base:0x4002a000 size:4096 596-5470/system_process W/InputMethodManagerService: Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@42942fe8 attribute=null, token = android.os.BinderProxy@41dab9b0, pid=17586, inputType=0x(null)</p> </blockquote>

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