How To Make Android Spinner Options Popup in a Dialog

By , 28 May 2014

How To Make Android Spinner Options Popup in a Dialog

The earlier versions of Android always showed spinner options in a dialog. Then I think devices got bigger and the powers that be decided to use a dropdown list for spinner options instead of a dialog. It's a sensible choice because the dropdowns look and operate better than the dialog - sometimes.

It's the sometimes that is the problem. For lists with a lot of data it makes better sense to use a full screen dialog than a small dropdown. The screenshots below show how much better the usability of a dialog selection is for our app, The Game Of Your Life.

How To Make Android Spinner Options Popup in a Dialog

Unfortunately the Android API doesn't give us an option to select between the two behaviours, but there is a way to force the spinner to use a dialog by extending the default Spinner class. Here is the code.

    public class DialogSpinner extends Spinner {
        public DialogSpinner(Context context) {
            super(context);
        }

        @Override 
        public boolean performClick() {
            new AlertDialog.Builder(getContext()).setAdapter((ListAdapter) getAdapter(), 
                new DialogInterface.OnClickListener() {
                    @Override public void onClick(DialogInterface dialog, int which) {
                        setSelection(which);
                        dialog.dismiss();
                    }
                }).create().show();
            return true;
        }
    }

If you like, you could further enhance this class to conditionally use a dialog or dropdown based on whatever logic you need. Note, you'll have to be sure to use a ListAdapter with this class or you'll get a ClassCastException.

It took a while and a fair bit of digging through the source code to figure this problem out so I hope you find it useful. If you're interesting in downloading the motivation app in the screenshot, it's available for free from Google Play.

Happy coding.

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How To Make Android Spinner Options Popup in a Dialog

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Comment posted by: Umesh, last year

i had to use these constructors... otherwise it is giving error

public NoTitleSpinner(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
}

public NoTitleSpinner(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public NoTitleSpinner(Context context) {
    super(context);
}

 

thanks for the solution. worked for me.

Comment posted by: marc, last year

HI, this is what Im trying to do, something like an optgroup in html, but I cant find how to do this. Would you mind to share with me a bit more of code so I can look how you did this?

 

thanks