Android AlertDialog with CheckBox

For my old project YahrtzeitZmanim I needed to add start-up alert box, which will announce new version of Yahrtzeit2 app.

For these purposes, I added the following code to onCreate function:

AlertDialog.Builder adb=new AlertDialog.Builder(TabView.this);
	    LayoutInflater adbInflater = LayoutInflater.from(TabView.this);
	    View eulaLayout = adbInflater.inflate(R.layout.checkbox, null);
	    dontShowAgain = (CheckBox)eulaLayout.findViewById(R.id.skip);
	    adb.setView(eulaLayout);
	    adb.setTitle("Attention");
	    adb.setMessage(Html.fromHtml("This version is going to be depricated soon. 
" +
				"Get Yahrtzeit2 in case you want to store your own Yahrtzeit dates
" +
				"Do you want to get Yahrtzeit2?"));
    	adb.setPositiveButton("Ok", new DialogInterface.OnClickListener() {  
    	      public void onClick(DialogInterface dialog, int which) {
    	    	  String checkBoxResult = "NOT checked";
    	    	  if (dontShowAgain.isChecked())  checkBoxResult = "checked";
    	    	  	SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
    	  	    	SharedPreferences.Editor editor = settings.edit();
    	  			editor.putString("skipMessage", checkBoxResult);	
    	  			// Commit the edits!
    	  			editor.commit();
    	  		  startActivity(new Intent(Intent.ACTION_VIEW,Uri.parse("market://details?id=com.mb.yartzeit2")));
    	    	  return;  
    	      } });
    	
    	adb.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {  
  	      public void onClick(DialogInterface dialog, int which) {
	    	  String checkBoxResult = "NOT checked";
	    	  if (dontShowAgain.isChecked())  checkBoxResult = "checked";
	    	  SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
	  	    	SharedPreferences.Editor editor = settings.edit();
	  			editor.putString("skipMessage", checkBoxResult);	
	  			// Commit the edits!
	  			editor.commit();
	    		  return;  
	      } });
    	SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
	    String skipMessage = settings.getString("skipMessage", "NOT checked");
		if (!skipMessage.equalsIgnoreCase("checked") ) adb.show();

and before onCreate function some pre-requisites:

public static final String PREFS_NAME = "MyPrefsFile1";
	public CheckBox dontShowAgain;

Additionally, I needed to create layout for checkbox.xml

As a result, I got the following alert box: