How to center progress indicator in ProgressDialog easily (when no title/text passed along)

Question

When calling progressDialog = ProgressDialog.show(this, null, null, true); usually the developers wants to only show the progress indication image, and usually

Answer 1

//create Dialog by using below method

@Override
protected Dialog onCreateDialog(int id) {

    switch (id) {

    case DIALOG1_KEY: {
        Dialog dialog = new Dialog(this,R.style.NewDialog);
        dialog.setContentView(R.layout.progress);
        dialog.setCancelable(true);
        return dialog;
    }
    }
    return null;
}

//then in your onCreate () you can call like below

@Override

public void onCreate(Bundle savedInstatncestate)

{

final Handler mHandler = new Handler();
showDialog(DIALOG1_KEY);
new Thread() {
public void run() {
try {
    sleep(3000);
    Runnable r = new Runnable() 
    {
    public void run() 
    {
               //do your background process

             dismissDialog(DIALOG1_KEY);
    }

        };
mHandler.post(r);
     } catch (Exception e) {
     }
   }
}.start();
}

Answer 2

I use the following, it requires no layout file, and puts a centered, borderless blocking progress bar in the middle of the screen.

private ProgressDialog progressDialog;


setUIToWait(true);

...long process...

setUIToWait(false);


private void setUIToWait(boolean wait) {

    if (wait) {
        progressDialog=ProgressDialog.show(this,null,null);
        progressDialog.setContentView(new ProgressBar(this));
    } else {
        progressDialog.dismiss();
    }

}