The following code shows how to display the Progress of an Operation.
Java code
package com.java2s.app; //from w w w . j av a 2s . co m import android.app.Activity; import android.app.ProgressDialog; import android.content.DialogInterface; import android.os.Bundle; import android.widget.Toast; public class MainActivity extends Activity { ProgressDialog progressDialog; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); progressDialog = new ProgressDialog(this); progressDialog.setIcon(R.drawable.ic_launcher); progressDialog.setTitle("Downloading files..."); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "OK", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { Toast.makeText(getBaseContext(), "OK clicked!", Toast.LENGTH_SHORT).show(); } } ); progressDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { Toast.makeText(getBaseContext(), "Cancel clicked!", Toast.LENGTH_SHORT).show(); } } ); progressDialog.show(); progressDialog.setProgress(0); new Thread(new Runnable() { public void run() { for (int i = 1; i <= 15; i++) { try { //---simulate doing something lengthy--- Thread.sleep(1000); //---update the dialog--- progressDialog.incrementProgressBy((int) (100 / 15)); } catch (InterruptedException e) { e.printStackTrace(); } } progressDialog.dismiss(); } }).start(); } }