Android - dialog sample

btnLogout.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {



        AlertDialog.Builder alertDialog = new AlertDialog.Builder(HomeActivity.this);
        alertDialog.setTitle("Logout");
        alertDialog.setMessage("Are you sure you want to Logout ?");


/* When positive (yes/ok) is clicked */
        alertDialog.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog,int which) {
                Intent i = new Intent(HomeActivity.this, MyActivity.class);
                i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
                        Intent.FLAG_ACTIVITY_CLEAR_TASK |
                        Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivity(i);
                finish();
                Toast.makeText(HomeActivity.this,"Successfully Logged Out", Toast.LENGTH_LONG).show();
            }
        });

/* When negative (No/cancel) button is clicked*/
        alertDialog.setNegativeButton("No", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                dialog.cancel();
            }
        });
        alertDialog.show();
    }
});