angular - 将服务传递给抽象类的构造函数(Passing a service into a constructor of an abstract class)

Question

I was trying to create a global helper class, which will easely access me methods(like this Global.OnShowSuccess(...,...) , but here comes the problem, when including a service.

(我正在尝试创建一个全局帮助器类，该类将轻松访问我的方法（例如Global.OnShowSuccess(...,...) ，但是在包含服务时会出现问题。)

This is what I tried:

(这是我尝试的：)

import { ToastrService } from "ngx-toastr";

export abstract class Global {


    private static _toastr: ToastrService;


    constructor(private toastr: ToastrService) {
        Global._toastr = this.toastr;
    }

    public static OnShowError(header: string, message: string) {
        Global._toastr.error(message, header);
    }

    public static OnShowSuccess(header: string, message: string) {
        Global._toastr.success(message, header);
    }
}

Global._toastr is undefined .

(Global._toastr是undefined 。)

How can I fix it ?

(我该如何解决？)

  ask by StartingAgain translate from so

Answer 1

等待大神答复