How to create a custom preference with a neutral button?

I use the code below to create a custom preference. The xml layout file has a Button开发者_JS百科, EditText and TextView. This custom layout appears inside an Alert with "OK" and "Cancel" buttons. This all works well.

I would like to add a third button (a neutral button) beside the "OK and "Cancel" buttons. I've experimented with the AlertBuilder class but can't figure out how to incorporate both my custom xml layout and a neutral button.

How can this be done?

Currently have...

public class MelsMessage extends DialogPreference {

    Button bMessage;
    EditText eMessage;
    TextView tMessage;

    public MelsMessage(Context context, AttributeSet attrs) {
        super(context, attrs);
        // TODO Auto-generated constructor stub
    }



    protected View onCreateDialogView() {

        LayoutInflater layoutInflater = LayoutInflater.from(getContext());
        View view = layoutInflater.inflate(R.layout.dialog_pref_mess, null);

        //UI elements

        bMessage = (Button) view.findViewById(R.id.buttonMessage);
        eMessage = (EditText) view.findViewById(R.id.edittextMessage);
        tMessage = (TextView) view.findViewById(R.id.textviewMessage);


        return view;        
    }

}

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I see your question is a bit old and maybe you already have the answer to your question but here is a solution for your class that extends DialogPreference.

First you have to Override the onPrepareDialogBuilder method in your MelsMessage class:

@Override
protected void onPrepareDialogBuilder(AlertDialog.Builder builder)
{
    super.onPrepareDialogBuilder(builder);
    builder.setNeutralButton("hello", this);
}

this in the setNeutralButton method is DialogInterface.OnClickListener interface that the DialogPreference class implement.

The last thing you have to do is to Override the onClick method in your MelsMessage class:

@Override
public void onClick(DialogInterface dialog, int which)
{
    super.onClick(dialog, which);

    switch (which)
    {
        case DialogInterface.BUTTON_POSITIVE:
            // do things for the right button
            break;

        case DialogInterface.BUTTON_NEGATIVE:
            // do things for the left button
            break;

        default:
            // do things for the center button
            break;
    }
}

If you want to handle the click in another class all you have to do is to implement DialogInterface.OnClickListener in this class.

Hope this will help you. Cheers.

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When you are overriding onCreateDialogView and you don't set the setPositiveButton and setNegativeButton the ok and cancel button should disappear, don't they? Because in that method you are overriding the default layout and setting a custom one.

If that is the case then you should create you own custom bottom layout with 3 buttons and add it in the inflated one. Try searching and implementing the "bottom ButtonBar" which has all the necessary implementation, because I don't see in the docs any method or a way to implement the neutral button like on a regular Dialog.

---

you can create custom Dialog with 3 buttons or write code like

Dialog.setButton(AlertDialog.BUTTON_POSITIVE, "OK", new DialogInterface.OnClickListener() {

      public void onClick(DialogInterface dialog, int id) {



    } }); 

 Dialog.setButton(AlertDialog.BUTTON_NEGATIVE, "Cancle", new DialogInterface.OnClickListener() {

      public void onClick(DialogInterface dialog, int id) {



    }}); 

 Dialog.setButton(AlertDialog.BUTTON_NEUTRAL, "Do Nothing" new DialogInterface.OnClickListener() {

      public void onClick(DialogInterface dialog, int id) {


    }});