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POAndroid Error: Notify user of what file is being downloaded
 

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  1. POAndroid Error: Notify user of what file is being downloaded
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    <p>I have a code that downloads videos from a URL. I am using AsyncTask. Now, what I want to do is notify the user via progress dialog of what video is being downloaded, or something like "Downloading Video 2 of 10". I am using the following code:</p> <pre><code>//DOWNLOAD VIDEOS private class downloadVideosAsync extends AsyncTask &lt;String, String, String&gt;{ protected void onPreExecute(){ super.onPreExecute(); MyActivity.this.mProgressDialog.setMessage("Downloading Videos..."); } @Override protected String doInBackground(String... strings){ try{ ArrayList&lt;String&gt; VideoNames = VideosM.getVideoNames(); ArrayList&lt;String&gt; VideoUrls = VideosM.getVideoUrls(); File vidFile = null; int videoNamesLenght = VideoNames.size(); int x; for(x = 0; x &lt; videoNamesLenght; x++) { //download video String[] videoName = VideoNames.get(x).split("/"); String currentFile = videoName[0] + "." + videoName[1]; String currentFileURL = VideoUrls.get(x) + VideoNames.get(x); vidFile = new File(Environment.getExternalStorageDirectory() + "/Engagia/Downloads/Videos/", currentFile); if( !vidFile.exists() ){ int curr_vid = x + 1; String ui_msg = "Downloading Videos " + curr_vid + " of " + videoNamesLenght + "..."; MyActivity.this.mProgressDialog.setMessage( ui_msg ); VideosC.downloadVideoFile(currentFile, currentFileURL, vidFile); } } }catch (NullPointerException e){ Log.e(LOG_TAG, e.toString()); }catch(Exception e){ Log.e(LOG_TAG, e.toString()); } return null; } @Override protected void onPostExecute(String lenghtOfFile) { new downloadSlideshowsAsync().execute(); } } </code></pre> <p>The code above give me an error: </p> <p><strong>android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.</strong></p> <p>EDIT:</p> <p>I also tried:</p> <pre><code>runOnUiThread(new Runnable() { public void run() { String ui_msg = "Downloading Videos " + curr_vid + " of " + videoNamesLenght + "..."; Engagia.this.mProgressDialog.setMessage( ui_msg ); Log.v("VideosController.java", ui_msg ); } }); </code></pre> <p>but gives me the same error...</p>
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