对话框

 对话框

new AlertDialog.Builder(EX03_12.this)
        .setTitle(R.string.app_about)
        .setMessage(R.string.app_about_msg)
        .setPositiveButton(R.string.str_ok,new DialogInterface.OnClickListener()
            {
           public void onClick(DialogInterface dialoginterface, int i)
             {
             }
             }
            )
        .show();