Android Confirmation dialog returning true or false

Question

It seems to be there is no easy way to get an Alert dialog to return a simple value.
This code does not work (the answer variable cannot be set

Answer 1

I was also struggling to use a blocking confirm dialog and I finally did it using a BlockingQueue :

public static class BlockingConfirmDialog{

    private Activity context;

    BlockingQueue blockingQueue;

    public BlockingConfirmDialog(Activity activity) {
        super();
        this.context = activity;
        blockingQueue = new ArrayBlockingQueue(1);
    }

    public boolean confirm(final String title, final String message){

        context.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                new AlertDialog.Builder(context)
                .setTitle(title)
                .setMessage(message)
                .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) { 
                        blockingQueue.add(true);
                    }
                 })
                 .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        blockingQueue.add(false);
                    }
                })
                 .show();
            }
        });

        try {
            return blockingQueue.take();
        } catch (InterruptedException e) {
            e.printStackTrace();
            return false;
        }

    }
}