CODEWITHSUNDEEP
androidandroid-activityandroid-asynctaskprogressdialog
Azeem
Azeem

Reputation: 2924

Progress Dialog in asyncTask OnPreExecute method Android

I have MainActivity.java Activity class which loads when application launches. I am using asyncTask methods in sperate file named ServerOperation.java . I need to show the progress bar in onPreExecute method of asyncTask. I am using following code but its not working and application crashes:

public class ServerOperation extends AsyncTask<Void, Void, ArrayList<Job>> {
ProgressDialog progressDialog;

@Override
protected void onPreExecute() {
    super.onPreExecute();
    MainActivity myActivity = new MainActivity();
    progressDialog = ProgressDialog.show(myActivity.getApplicationContext(),"PLEASE WAIT","LOADING JOBS...", true);
}
}

How should I make progressDialog work on main activity?

Thanks.

Upvotes: 1

Views: 2120

Answers (1)

Raghunandan
Raghunandan

Reputation: 133560

You should never create an instance of Acitvity class. Its not a normal java class.

You can pass the Activity Context to the constructor of Asynctask

Invoke Aysnctask as

 new ServerOperation(MainActivity.this).execute(params);

in MainActivity

Then

 Context mContext;
 public ServerOperation (Context context)
 {
       mContext =context;

 }

Then

  progressDialog = ProgressDialog.show(mContext,"PLEASE WAIT","LOADING JOBS...", true);

Upvotes: 3

Related Questions