dist/famous-flex.js
function _setListeners() {
        this.tabBar.on('tabchange', function(event) {
            _updateView.call(this, event);
            this._eventOutput.emit('tabchange', {
                target: this,
                index: event.index,
                oldIndex: event.oldIndex,
                item: this._items[event.index],
                oldItem: ((event.oldIndex >= 0) && (event.oldIndex < this._items.length)) ? this._items[event.oldIndex] : undefined
            });
        }.bind(this));
    }
function _setListeners() {
        this.tabBar.on('tabchange', function(event) {
            _updateView.call(this, event);
            this._eventOutput.emit('tabchange', {
                target: this,
                index: event.index,
                oldIndex: event.oldIndex,
                item: this._items[event.index],
                oldItem: ((event.oldIndex >= 0) && (event.oldIndex < this._items.length)) ? this._items[event.oldIndex] : undefined
            });
        }.bind(this));
    }
Sets the listeners.