Method ngAfterContentInit

src/material/sidenav/drawer.ts:844–881

()

  }

  ngAfterContentInit() {
    this._allDrawers.changes
      .pipe(startWith(this._allDrawers), takeUntil(this._destroyed))
      .subscribe((drawer: QueryList<MatDrawer>) => {
        this._drawers.reset(drawer.filter(item => !item._container || item._container === this));
        this._drawers.notifyOnChanges();
      });

    this._drawers.changes.pipe(startWith(null)).subscribe(() => {
      this._validateDrawers();

      this._drawers.forEach((drawer: MatDrawer) => {
        this._watchDrawerToggle(drawer);
        this._watchDrawerPosition(drawer);
        this._watchDrawerMode(drawer);
      });

      if (
        !this._drawers.length ||
        this._isDrawerOpen(this._start) ||
        this._isDrawerOpen(this._end)
      ) {
        this.updateContentMargins();
      }

      this._changeDetectorRef.markForCheck();
    });

    // Avoid hitting the NgZone through the debounce timeout.
    this._ngZone.runOutsideAngular(() => {
      this._doCheckSubject
        .pipe(
          debounceTime(10), // Arbitrary debounce time, less than a frame at 60fps
          takeUntil(this._destroyed),
        )
        .subscribe(() => this.updateContentMargins());
    });
  }

  ngOnDestroy() {
    this._contentMarginChanges.complete();