progress dialog nugget

progressDialog.java

uploadButton.setOnClickListener(new Button.OnClickListener() {  
        public void onClick(View v)
            {
        		final ProgressDialog progressDialog = new ProgressDialog(getActivity());
                //perform upload action
	        	Thread thread = new Thread()
	        	{
	        	    @Override
	        	    public void run() {
	        	    	getActivity().runOnUiThread(new Runnable() {

	                        @Override
	                        public void run() {
	                        	progressDialog.setTitle("File Upload");
	                        	progressDialog.setMessage("Please Wait...");
	                        	progressDialog.isIndeterminate();
	                        	progressDialog.show();
	                        }
	                    });
	        	    	
	        	        uploadFile();
	        	        
	        	        getActivity().runOnUiThread(new Runnable() {

	                        @Override
	                        public void run() {
	                        	progressDialog.dismiss();
	                        }
	                    });
	        	        
	        	    }
	        	};
	
	        	thread.start();
        		
            }
         });