NativeScript版本4.1.2不支持直接将本地Android Java代码放入src平台文件夹

Question

我已将项目更新为最新的NativeScript version 4.1.2。我一直在将Native-android代码直接用于NativeScript应用程序中。

4.0以下的旧版本可以正常工作。但是已更新为最新版本4.0或更高版本，不支持nativescript中的本地类。

app.component.ts文件：

import { Component } from "@angular/core";
declare var org: any;

@Component({
    selector: "ns-app",
    template: `

    <StackLayout orientation="vertical">
            <Label [text]="message" (tap)="onTap()"></Label>
    </StackLayout>
  `
})

export class AppComponent {

    public onTap() {

       console.log(org.nativescript.Toast.postData());
    }
 }

平台/ android / app / src / main / java / org / nativescript：

Toast.java：

public class Toast {

 public static String postData(){
     return "ToastValue";
 }
}

最后，我在控制台中收到以下错误：

JS: ERROR TypeError: Cannot read property 'postData' of undefined
JS: ERROR CONTEXT {
JS:   "view": {
JS:     "def": {
JS:       "nodeFlags": 1,
JS:       "rootNodeFlags": 1,
JS:       "nodeMatchedQueries": 0,
JS:       "flags": 0,
JS:       "nodes": [
JS:         {
JS:           "nodeIndex": 0,
JS:           "parent": null,

JS:           "renderParent": null,
JS:           "bindingIndex": 0,
JS:           "outputIndex": 0,
JS:           "checkIndex": 0,
JS:           "flags": 1,
JS:           "childFlags": 1,
JS:           "directChildFlags": 1,
JS:           "childMatchedQueries": 0,
JS:           "matchedQueries": {},
JS:           "matchedQueryIds": 0,
JS:           "references": {},
JS:           "ngContentIndex": null,
JS:           "childCount": 1,
JS:           "bindings": [],
JS:           "bindingFlags": 0,
JS:           "outputs": [],
JS:           "element": {
JS:             "ns": "",
JS:             "name": "StackLayout",
JS:             "attrs": [
JS:               [
JS:                 "",
JS:                 "orientation",
JS:                 "vertical"
JS:               ]
JS:             ],
JS:             "template": null,
JS:             "componentProvider": null,
JS:             "componentView": null,
JS:         ...

因此，我无法在控制台中打印ToastValue。