角度材质检查对话框是否打开

如果它在单个组件中,只需存储对操作它有用的引用。

private _openDialog() {
  if (!this.dialogRef) return;
  this.dialogRef = this.dialog.open(WarningComponent, {
    width: '450px',
    height: '380px',
  });

  this.dialogRef.afterClosed().pipe(
    finalize(() => this.dialogRef = undefined)
  );
}

如果是跨组件的,请检查打开的对话框列表:

private _openDialog() {
  if (!this.dialog.openDialogs || !this.dialog.openDialogs.length) return;
  this.dialog.open(WarningComponent, {
    width: '450px',
    height: '380px',
  });
}

你能看一下这个链接吗 check existing of open dialog

private _openDialog() {
  // Only show if not already open
  if ($('.mat-dialog-container').length > 0) return;
  this.dialog.open(WarningComponent, {
     width: '450px',
     height: '380px',
  });
}