Method ngOnDestroy

src/material/dialog/dialog.ts:223–229

()

  }

  ngOnDestroy() {
    // Only close the dialogs at this level on destroy
    // since the parent service may still be active.
    this._closeDialogs(this._openDialogsAtThisLevel);
    this._afterAllClosedAtThisLevel.complete();
    this._afterOpenedAtThisLevel.complete();
  }

  private _closeDialogs(dialogs: MatDialogRef<any>[]) {
    let i = dialogs.length;