init

example/lib/test.dart

@@ -0,0 +1,102 @@
+/*
+ * @Description: 
+ * @Author: ekibun
+ * @Date: 2020-07-18 23:28:55
+ * @LastEditors: ekibun
+ * @LastEditTime: 2020-08-08 17:38:48
+ */ 
+import 'package:dio/dio.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_qjs/flutter_qjs.dart';
+
+import 'code/editor.dart';
+
+class TestPage extends StatefulWidget {
+  @override
+  State<StatefulWidget> createState() => _TestPageState();
+}
+
+class _TestPageState extends State<TestPage> {
+
+  String code, resp;
+  int engine;
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text("JS 引擎功能测试"),
+      ),
+      body: SingleChildScrollView(
+        padding: const EdgeInsets.all(16),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            SingleChildScrollView(
+              scrollDirection: Axis.horizontal,
+              child: Row(
+                children: [
+                  FlatButton(child: Text("初始化引擎"), onPressed: () async {
+                    if ((engine?? 0) != 0) return;
+                    engine = await FlutterJs.initEngine();
+                    // dart 函数回调
+                    FlutterJs.methodHandler = (String method, List arg) async {
+                      switch (method) {
+                        case "delay":
+                          await Future.delayed(Duration(milliseconds: arg[0]));
+                          return;
+                        case "http":
+                          Response response = await Dio().get(arg[0]);
+                          return response.data;
+                        default:
+                      }
+                    };
+                  }),
+                  FlatButton(child: Text("运行"), onPressed: () async {
+                    if ((engine?? 0) == 0) {
+                      print("请先初始化引擎");
+                      return;
+                    }
+                    try {
+                      resp = await FlutterJs.evaluate(code ?? '', "<eval>");
+                    } catch(e) {
+                      resp = e.toString();
+                    }
+                    setState(() {
+                      code = code;
+                    });
+                  }),
+                  FlatButton(child: Text("释放引擎"), onPressed: () async {
+                    if ((engine?? 0) == 0) return;
+                    await FlutterJs.close();
+                    engine = 0;
+                  }),
+                ],
+              ),
+            ),
+            Container(
+              padding: const EdgeInsets.all(12),
+              color: Colors.grey.withOpacity(0.1),
+              constraints: BoxConstraints(minHeight: 200),
+              child: CodeEditor(
+                onChanged: (v) {
+                  code = v;
+                },
+              ),
+            ),
+            SizedBox(height: 16),
+            Text("运行结果："),
+            SizedBox(height: 16),
+            Container(
+              width: double.infinity,
+              padding: const EdgeInsets.all(12),
+              color: Colors.green.withOpacity(0.05),
+              constraints: BoxConstraints(minHeight: 100),
+              child: Text(resp ?? ''),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}