_alignInkBarToSelectedTab() {
        const /** @type {?} */ selectedLabelWrapper = this._labelWrappers && this._labelWrappers.length ?
            this._labelWrappers.toArray()[this.selectedIndex].elementRef.nativeElement :
            null;
        this._inkBar.alignToElement(selectedLabelWrapper);
    }
/**
     * Tells the ink-bar to align itself to the current label wrapper
     * @return {?}
     */
Tells the ink-bar to align itself to the current label wrapper
@return {?}
Tells the ink - bar to align itself to the current label wrapper @return { ? }
_alignInkBarToSelectedTab() {
        const  selectedLabelWrapper = this._labelWrappers && this._labelWrappers.length ?
            this._labelWrappers.toArray()[this.selectedIndex].elementRef.nativeElement :
            null;
        this._inkBar.alignToElement(selectedLabelWrapper);
    }
_alignInkBarToSelectedTab ( ) { const selectedLabelWrapper = this . _labelWrappers && this . _labelWrappers . length ? this . _labelWrappers . toArray ( ) [ this . selectedIndex ] . elementRef . nativeElement : null ; this . _inkBar . alignToElement ( selectedLabelWrapper ) ; }
Tells the ink-bar to align itself to the current label wrapper
 @return {?}
Tells the ink - bar to align itself to the current label wrapper @return { ? }
/** @type {?} */