Question

I’m trying to update the progress bar in a AsyncTask while downloading some stuff..
Here is the code:

    @Override
protected void onPreExecute() {
    Intent myIntent = new Intent(mContext, Explanation.class);
    mContext.startActivity(myIntent);

    View inflater = View.inflate(mContext, R.layout.explanation, null);
    mProgressDialog = (ProgressBar) inflater.findViewById(R.id.Explanation_ProgressBar);
    }

@Override
protected void onProgressUpdate(Integer... values) {
    mProgressDialog.setProgress(values[0]);

}

xml:

  <ProgressBar 
   android:max="100"       
style="?android:attr/progressBarStyleHorizontal"
    android:layout_alignParentBottom="true" android:layout_width="fill_parent" android:id="@+id/Explanation_ProgressBar" 
     android:layout_height="wrap_content"></ProgressBar>

A note: The progress bar is in the layout of the Activity I call in the onPreExecute(). and I want to update it through the AsyncTask. Is this possible? Why isnt it updated?

Answer 1

To update progress dialog you need to call publishProgress(...) from doInBackground.
Check Usage and publishProgress sections of AsyncTask doc