How to Remove Dull Background on Active Android Application

While running progress dialog the screen becomes dull. In order to avoid that blur the following code will helpful.

Here i am applying properties to our progress dialog. In this example "lp.dimAmount:" is the attribute to set the dim amount .

pdlg = ProgressDialog.show(getParent(), "", "Loading..");
//Setting the properties
WindowManager.LayoutParams lp = pdlg.getWindow().getAttributes();
lp.dimAmount=0.0f;
//Applying to the screen
pdlg.getWindow().setAttributes(lp);