在使用dialog.close()函数后，可能需要等待一段时间来确保对话框已经完全关闭。可以使用Promise来解决此问题。

代码示例：

import { Component } from '@angular/core';
import { MatDialog, MatDialogRef } from '@angular/material/dialog';

@Component({
  selector: 'app-dialog-example',
  template: `
    Open dialog
  `
})
export class DialogExampleComponent {
  dialogRef: MatDialogRef;

  constructor(public dialog: MatDialog) { }

  openDialog(): void {
    this.dialogRef = this.dialog.open(DialogExampleDialogComponent);
    this.dialogRef.afterClosed().subscribe(result => {
      console.log('Dialog closed with result:', result);
    });
  }
}

@Component({
  selector: 'app-dialog-example-dialog',
  template: `
    
Dialog title
    Dialog content goes here.
    
      Close dialog
    
  `
})
export class DialogExampleDialogComponent {
  constructor(public dialogRef: MatDialogRef) { }

  onDialogClose(): void {
    this.dialogRef.close().then(() => {
      console.log('Dialog closed.');
    });
  }
}