添加初始化 扫描监听

添加扫描工具设置接口

README.md

@@ -1,15 +1,21 @@
 # dj_scaner
 
-A new flutter plugin project.
+东集PDA手持扫描设备flutter端插件
 
-## Getting Started
+## 初始化
-
+```dart
-This project is a starting point for a Flutter
+DjScaner.init();
-[plug-in package](https://flutter.dev/developing-packages/),
+```
-a specialized package that includes platform-specific implementation code for
+初始化内容：声音关闭，震动关闭，开机自启动，扫描头关闭
-Android and/or iOS.
-
-For help getting started with Flutter, view our
-[online documentation](https://flutter.dev/docs), which offers tutorials,
-samples, guidance on mobile development, and a full API reference.
 
+##监听扫描内容
+```dart
+await DjScaner.addListener((data) {
+                    _code = data;
+                    setState(() {});
+                  });
+```
+##结束监听
+```dart
+    DjScaner.cancel();
+```

android/src/main/java/com/dj/pda/scaner/dj_scaner/DjScanerPlugin.java

@@ -1,38 +1,136 @@
 package com.dj.pda.scaner.dj_scaner;
 
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+
 import androidx.annotation.NonNull;
 
 import io.flutter.embedding.engine.plugins.FlutterPlugin;
+import io.flutter.plugin.common.EventChannel;
 import io.flutter.plugin.common.MethodCall;
 import io.flutter.plugin.common.MethodChannel;
 import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
 import io.flutter.plugin.common.MethodChannel.Result;
 
-/** DjScanerPlugin */
+/**
+ * DjScanerPlugin
+ */
 public class DjScanerPlugin implements FlutterPlugin, MethodCallHandler {
-  /// The MethodChannel that will the communication between Flutter and native Android
+    /// The MethodChannel that will the communication between Flutter and native Android
-  ///
+    ///
-  /// This local reference serves to register the plugin with the Flutter Engine and unregister it
+    /// This local reference serves to register the plugin with the Flutter Engine and unregister it
-  /// when the Flutter Engine is detached from the Activity
+    /// when the Flutter Engine is detached from the Activity
-  private MethodChannel channel;
+    private MethodChannel channel;
-
+    private EventChannel eventChannel;
-  @Override
+    private Context context;
-  public void onAttachedToEngine(@NonNull FlutterPluginBinding flutterPluginBinding) {
+    private static final String SCANACTION = "com.android.server.scannerservice.asscaner";
-    channel = new MethodChannel(flutterPluginBinding.getBinaryMessenger(), "dj_scaner");
+    private static final String SCANCHANNEL = "com.dj.pda.scaner/scandata";
-    channel.setMethodCallHandler(this);
+
-  }
+    @Override
-
+    public void onAttachedToEngine(@NonNull FlutterPluginBinding flutterPluginBinding) {
-  @Override
+        channel = new MethodChannel(flutterPluginBinding.getBinaryMessenger(), "dj_scaner");
-  public void onMethodCall(@NonNull MethodCall call, @NonNull Result result) {
+        channel.setMethodCallHandler(this);
-    if (call.method.equals("getPlatformVersion")) {
+        context = flutterPluginBinding.getApplicationContext();
-      result.success("Android " + android.os.Build.VERSION.RELEASE);
+        eventChannel = new EventChannel(flutterPluginBinding.getBinaryMessenger(), SCANCHANNEL);
-    } else {
+        eventChannel.setStreamHandler(new EventChannel.StreamHandler() {
-      result.notImplemented();
+            private BroadcastReceiver createScanReceiver(final EventChannel.EventSink events) {
+                return new BroadcastReceiver() {
+                    @Override
+                    public void onReceive(Context context, Intent intent) {
+                        if (intent.getAction().equals(SCANACTION)) {
+                            String code = intent.getStringExtra("scannerdata");
+                            System.out.println(code);
+                            events.success(code);
+                        }
+                    }
+                };
+            }
+
+            ;
+            private BroadcastReceiver scanReceiver;
+
+            @Override
+            public void onListen(Object arguments, EventChannel.EventSink events) {
+                System.out.println("注册广播");
+                scanReceiver = createScanReceiver(events);
+                IntentFilter intentFilter = new IntentFilter();
+                intentFilter.addAction(SCANACTION);
+                intentFilter.setPriority(Integer.MAX_VALUE);
+                context.registerReceiver(scanReceiver, intentFilter);
+            }
+
+            @Override
+            public void onCancel(Object arguments) {
+                System.out.println("注销广播");
+                context.unregisterReceiver(scanReceiver);
+            }
+        });
+    }
+
+    @Override
+    public void onMethodCall(@NonNull MethodCall call, @NonNull Result result) {
+        if (call.method.equals("soundPlay")) {
+            boolean arg=(boolean) call.argument("onOpen");
+            System.out.println("声音 "+(arg?"开启":"关闭"));
+            Intent intent = new Intent("com.android.scanner.service_settings");
+            intent.putExtra("sound_play",arg );
+            context.sendBroadcast(intent);
+            result.success(true);
+        } else if (
+                call.method.equals("viberate")
+        ) {
+            boolean arg=(boolean) call.argument("onOpen");
+            System.out.println("震动"+(arg?"开启":"关闭"));
+            Intent intent = new Intent("com.android.scanner.service_settings");
+            intent.putExtra("viberate", arg);
+            context.sendBroadcast(intent);
+            result.success(true);
+        } else if (
+                call.method.equals("scanContinue")
+        ) {
+            boolean arg=(boolean) call.argument("onOpen");
+            System.out.println("连续扫描"+(arg?"开启":"关闭"));
+            Intent intent = new Intent("com.android.scanner.service_settings");
+            intent.putExtra("scan_continue", arg);
+            context.sendBroadcast(intent);
+            result.success(true);
+        } else if (
+                call.method.equals("bootStart")
+        ) {
+            boolean arg=(boolean) call.argument("onOpen");
+            System.out.println("开机自启动"+(arg?"开启":"关闭"));
+            Intent intent = new Intent("com.android.scanner.service_settings");
+            intent.putExtra("boot_start", arg);
+            context.sendBroadcast(intent);
+            result.success(true);
+        } else if (
+                call.method.equals("scanEnabled")
+        ) {
+            boolean arg=(boolean) call.argument("onOpen");
+            System.out.println("扫描开关：");
+            System.out.println(arg);
+            Intent intent = new Intent("com.android.scanner.ENABLED");
+            intent.putExtra("enabled",arg);
+            context.sendBroadcast(intent);
+            result.success(true);
+        } else if (
+                call.method.equals("broadcastName")
+        ) {
+            System.out.println("设置广播名称：");
+            System.out.println((String) call.argument("name"));
+            Intent intent = new Intent("com.android.scanner.service_settings");
+            intent.putExtra("action_barcode_broadcast", (String) call.argument("name"));
+            context.sendBroadcast(intent);
+            result.success(true);
+        } else {
+            result.notImplemented();
+        }
     }
-  }
 
-  @Override
+    @Override
-  public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
+    public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
-    channel.setMethodCallHandler(null);
+        channel.setMethodCallHandler(null);
-  }
+    }
 }

example/lib/main.dart

@@ -1,8 +1,8 @@
-import 'package:flutter/material.dart';
 import 'dart:async';
 
-import 'package:flutter/services.dart';
 import 'package:dj_scaner/dj_scaner.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 
 void main() {
   runApp(const MyApp());
@@ -16,34 +16,29 @@ class MyApp extends StatefulWidget {
 }
 
 class _MyAppState extends State<MyApp> {
-  String _platformVersion = 'Unknown';
+  String _code = '';
+  bool _init = false;
 
   @override
   void initState() {
     super.initState();
-    initPlatformState();
   }
 
-  // Platform messages are asynchronous, so we initialize in an async method.
   Future<void> initPlatformState() async {
-    String platformVersion;
-    // Platform messages may fail, so we use a try/catch PlatformException.
-    // We also handle the message potentially returning null.
     try {
-      platformVersion =
+      await DjScaner.init();
-          await DjScaner.platformVersion ?? 'Unknown platform version';
+      _init = true;
     } on PlatformException {
-      platformVersion = 'Failed to get platform version.';
+      print('init  false');
     }
-
-    // If the widget was removed from the tree while the asynchronous platform
-    // message was in flight, we want to discard the reply rather than calling
-    // setState to update our non-existent appearance.
     if (!mounted) return;
+    setState(() {});
+  }
 
-    setState(() {
+  @override
-      _platformVersion = platformVersion;
+  void dispose() {
-    });
+    DjScaner.cancel();
+    super.dispose();
   }
 
   @override
@@ -54,7 +49,42 @@ class _MyAppState extends State<MyApp> {
           title: const Text('Plugin example app'),
         ),
         body: Center(
-          child: Text('Running on: $_platformVersion\n'),
+          child: Column(
+            children: [
+              TextButton(
+                onPressed: () async {
+                  await initPlatformState();
+                },
+                child: const Text('初始化'),
+              ),
+              const SizedBox(
+                height: 10,
+              ),
+              TextButton(
+                onPressed: () async {
+                  await DjScaner.addListener((data) {
+                    _code = data;
+                    setState(() {});
+                  });
+                },
+                child: const Text('开始扫描'),
+              ),
+              const SizedBox(
+                height: 10,
+              ),
+              TextButton(
+                onPressed: () async {
+                  DjScaner.cancel();
+                },
+                child: const Text('结束扫描'),
+              ),
+              Text(_code),
+              const SizedBox(
+                height: 10,
+              ),
+              Text(_init.toString()),
+            ],
+          ),
         ),
       ),
     );

lib/dj_scaner.dart

@@ -1,13 +1,92 @@
-
 import 'dart:async';
 
 import 'package:flutter/services.dart';
 
 class DjScaner {
+  static const String scanActionName =
+      "com.android.server.scannerservice.asscaner";
   static const MethodChannel _channel = MethodChannel('dj_scaner');
+  static const EventChannel _eventChannel =
+      EventChannel('com.dj.pda.scaner/scandata');
+  static StreamSubscription? _streamSubscription;
+
+  static Future<StreamSubscription> addListener(
+      void Function(dynamic data)? onData) async {
+    await scanEnabled(true);
+    if (_streamSubscription == null) {
+      return _eventChannel.receiveBroadcastStream().listen(onData);
+    } else {
+      return _streamSubscription!;
+    }
+  }
+
+  static void cancel() {
+    if (_streamSubscription != null) {
+      _streamSubscription!.cancel();
+      _streamSubscription = null;
+    }
+    scanEnabled(false);
+  }
+
+  static Future init() async {
+    print('初始化');
+
+    ///默认关闭声音
+    await soundPlay(false);
+
+    ///默认关闭震动
+    await viberate(false);
+
+    ///默认开机自启动
+    await bootStart(true);
+
+    ///设置广播名称
+    await broadcastName(scanActionName);
+
+    ///默认关闭扫描
+    await scanEnabled(false);
+    print('初始化完成');
+  }
+
+  ///声音开关
+  static Future soundPlay(bool onOpen) async {
+    await _channel.invokeMethod('soundPlay', {
+      'onOpen': onOpen,
+    });
+  }
+
+  ///震动开关
+  static Future viberate(bool onOpen) async {
+    await _channel.invokeMethod('viberate', {
+      'onOpen': onOpen,
+    });
+  }
+
+  ///连续扫描开关
+  static Future scanContinue(bool onOpen) async {
+    await _channel.invokeMethod('scanContinue', {
+      'onOpen': onOpen,
+    });
+  }
+
+  ///开机自启动
+  static Future bootStart(bool onOpen) async {
+    await _channel.invokeMethod('bootStart', {
+      'onOpen': onOpen,
+    });
+  }
+
+  ///启动/禁用扫描头
+  static Future scanEnabled(bool onOpen) async {
+    await _channel.invokeMethod('scanEnabled', {
+      'onOpen': onOpen,
+    });
+  }
 
-  static Future<String?> get platformVersion async {
+  ///设置广播名称
-    final String? version = await _channel.invokeMethod('getPlatformVersion');
+  static Future broadcastName(String name) async {
-    return version;
+    await _channel.invokeMethod('broadcastName', {
+      'name': name,
+    });
   }
 }

test/dj_scaner_test.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:dj_scaner/dj_scaner.dart';
 
 void main() {
   const MethodChannel channel = MethodChannel('dj_scaner');
@@ -17,7 +16,5 @@ void main() {
     channel.setMockMethodCallHandler(null);
   });
 
-  test('getPlatformVersion', () async {
+  test('getPlatformVersion', () async {});
-    expect(await DjScaner.platformVersion, '42');
-  });
 }