Java tutorial
//package com.java2s; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; public class Main { public static void alertActivityFinish(final Activity activity, String msg) { AlertDialog.Builder ad = new AlertDialog.Builder(activity); ad.setIcon(activity.getResources().getDrawable(android.R.drawable.ic_dialog_alert)); // Android Resource ad.setTitle("Sky Canvas").setMessage(msg).setPositiveButton("OK", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { // finish dialog dialog.dismiss(); activity.finish(); } }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { } }).show(); ad = null; } }