[network_info_plus] adapted from connectivity_plus

packages/network_info_plus/.gitattributes

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+# Auto detect text files and perform LF normalization
+*        text=auto
+
+# Always perform LF normalization on these files
+*.dart   text
+*.gradle text
+*.html   text
+*.java   text
+*.json   text
+*.md     text
+*.py     text
+*.sh     text
+*.txt    text
+*.xml    text
+*.yaml   text
+
+# Make sure that these Windows files always have CRLF line endings in checkout
+*.bat    text eol=crlf
+*.ps1    text eol=crlf
+
+# Never perform LF normalization on these files
+*.ico    binary
+*.jar    binary
+*.png    binary
+*.zip    binary

packages/network_info_plus/.gitignore

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+.DS_Store
+.atom/
+.idea/
+.vscode/
+
+.packages
+.pub/
+.dart_tool/
+pubspec.lock
+flutter_export_environment.sh
+
+examples/all_plugins/pubspec.yaml
+
+Podfile
+Podfile.lock
+Pods/
+.symlinks/
+**/Flutter/App.framework/
+**/Flutter/ephemeral/
+**/Flutter/Flutter.framework/
+**/Flutter/Generated.xcconfig
+**/Flutter/flutter_assets/
+
+ServiceDefinitions.json
+xcuserdata/
+**/DerivedData/
+
+local.properties
+keystore.properties
+.gradle/
+gradlew
+gradlew.bat
+gradle-wrapper.jar
+.flutter-plugins-dependencies
+*.iml
+
+generated_plugin_registrant.dart
+GeneratedPluginRegistrant.h
+GeneratedPluginRegistrant.m
+GeneratedPluginRegistrant.java
+GeneratedPluginRegistrant.swift
+build/
+.flutter-plugins
+
+.project
+.classpath
+.settings

packages/network_info_plus/CHANGELOG.md

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+## 0.1.0
+
+- Initial release

packages/network_info_plus/LICENSE

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+// Copyright 2017 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

packages/network_info_plus/README.md

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+# network_info_plus
+
+[![Flutter Community: network_info_plus](https://fluttercommunity.dev/_github/header/network_info_plus)](https://github.com/fluttercommunity/community)
+
+[![pub package](https://img.shields.io/pub/v/network_info_plus.svg)](https://pub.dev/packages/network_info_plus)
+
+This plugin allows Flutter apps to discover network info and configure
+themselves accordingly.
+
+## Usage
+
+You can get wi-fi related information using:
+
+```dart
+import 'package:network_info_plus/network_info_plus.dart';
+
+var wifiBSSID = await (NetworkInfo().getWifiBSSID());
+var wifiIP = await (NetworkInfo().getWifiIP());network
+var wifiName = await (NetworkInfo().getWifiName());wifi network
+```
+
+### iOS 12
+
+To use `.getWifiBSSID()` and `.getWifiName()` on iOS >= 12, the `Access WiFi information capability` in XCode must be enabled. Otherwise, both methods will return null.
+
+### iOS 13
+
+The methods `.getWifiBSSID()` and `.getWifiName()` utilize the [`CNCopyCurrentNetworkInfo`](https://developer.apple.com/documentation/systemconfiguration/1614126-cncopycurrentnetworkinfo) function on iOS.
+
+As of iOS 13, Apple announced that these APIs will no longer return valid information.
+An app linked against iOS 12 or earlier receives pseudo-values such as:
+
+ * SSID: "Wi-Fi" or "WLAN" ("WLAN" will be returned for the China SKU).
+
+ * BSSID: "00:00:00:00:00:00"
+
+An app linked against iOS 13 or later receives `null`.
+
+The `CNCopyCurrentNetworkInfo` will work for Apps that:
+
+  * The app uses Core Location, and has the user’s authorization to use location information.
+
+  * The app uses the NEHotspotConfiguration API to configure the current Wi-Fi network.
+
+  * The app has active VPN configurations installed.
+
+If your app falls into the last two categories, it will work as it is. If your app doesn't fall into the last two categories,
+and you still need to access the wifi information, you should request user's authorization to use location information.
+
+There is a helper method provided in this plugin to request the location authorization: `requestLocationServiceAuthorization`.
+To request location authorization, make sure to add the following keys to your _Info.plist_ file, located in `<project root>/ios/Runner/Info.plist`:
+
+* `NSLocationAlwaysAndWhenInUseUsageDescription` - describe why the app needs access to the user’s location information all the time (foreground and background). This is called _Privacy - Location Always and When In Use Usage Description_ in the visual editor.
+* `NSLocationWhenInUseUsageDescription` - describe why the app needs access to the user’s location information when the app is running in the foreground. This is called _Privacy - Location When In Use Usage Description_ in the visual editor.
+
+## Getting Started
+
+For help getting started with Flutter, view our online
+[documentation](https://flutter.dev/).
+
+For help on editing plugin code, view the [documentation](https://flutter.dev/platform-plugins/#edit-code).

packages/network_info_plus/android/build.gradle

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+group 'dev.fluttercommunity.plus.network_info'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.3.0'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 28
+
+    defaultConfig {
+        minSdkVersion 16
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+}

packages/network_info_plus/android/gradle.properties

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+org.gradle.jvmargs=-Xmx1536M

packages/network_info_plus/android/settings.gradle

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+rootProject.name = 'network_info'

packages/network_info_plus/android/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="dev.fluttercommunity.plus.network_info">
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+  <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+</manifest>

packages/network_info_plus/android/src/main/java/dev/fluttercommunity/plus/network_info/NetworkInfo.java

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+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package dev.fluttercommunity.plus.network_info;
+
+import android.net.wifi.WifiInfo;
+import android.net.wifi.WifiManager;
+
+/** Reports network info such as wifi name and address. */
+class NetworkInfo {
+  private WifiManager wifiManager;
+
+  NetworkInfo(WifiManager wifiManager) {
+    this.wifiManager = wifiManager;
+  }
+
+  String getWifiName() {
+    WifiInfo wifiInfo = getWifiInfo();
+    String ssid = null;
+    if (wifiInfo != null) ssid = wifiInfo.getSSID();
+    if (ssid != null) ssid = ssid.replaceAll("\"", ""); // Android returns "SSID"
+    return ssid;
+  }
+
+  String getWifiBSSID() {
+    WifiInfo wifiInfo = getWifiInfo();
+    String bssid = null;
+    if (wifiInfo != null) {
+      bssid = wifiInfo.getBSSID();
+    }
+    return bssid;
+  }
+
+  String getWifiIPAddress() {
+    WifiInfo wifiInfo = null;
+    if (wifiManager != null) wifiInfo = wifiManager.getConnectionInfo();
+
+    String ip = null;
+    int i_ip = 0;
+    if (wifiInfo != null) i_ip = wifiInfo.getIpAddress();
+
+    if (i_ip != 0)
+      ip =
+          String.format(
+              "%d.%d.%d.%d",
+              (i_ip & 0xff), (i_ip >> 8 & 0xff), (i_ip >> 16 & 0xff), (i_ip >> 24 & 0xff));
+
+    return ip;
+  }
+
+  private WifiInfo getWifiInfo() {
+    return wifiManager == null ? null : wifiManager.getConnectionInfo();
+  }
+}

packages/network_info_plus/android/src/main/java/dev/fluttercommunity/plus/network_info/NetworkInfoMethodChannelHandler.java

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+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package dev.fluttercommunity.plus.network_info;
+
+import io.flutter.plugin.common.MethodCall;
+import io.flutter.plugin.common.MethodChannel;
+
+/**
+ * The handler receives {@link MethodCall}s from the UIThread, gets the related information from
+ * a @{@link NetworkInfo}, and then send the result back to the UIThread through the {@link
+ * MethodChannel.Result}.
+ */
+class NetworkInfoMethodChannelHandler implements MethodChannel.MethodCallHandler {
+
+  private NetworkInfo networkInfo;
+
+  /**
+   * Construct the NetworkInfoMethodChannelHandler with a {@code networkInfo}. The {@code
+   * networkInfo} must not be null.
+   */
+  NetworkInfoMethodChannelHandler(NetworkInfo networkInfo) {
+    assert (networkInfo != null);
+    this.networkInfo = networkInfo;
+  }
+
+  @Override
+  public void onMethodCall(MethodCall call, MethodChannel.Result result) {
+    switch (call.method) {
+      case "wifiName":
+        result.success(networkInfo.getWifiName());
+        break;
+      case "wifiBSSID":
+        result.success(networkInfo.getWifiBSSID());
+        break;
+      case "wifiIPAddress":
+        result.success(networkInfo.getWifiIPAddress());
+        break;
+      default:
+        result.notImplemented();
+        break;
+    }
+  }
+}

packages/network_info_plus/android/src/main/java/dev/fluttercommunity/plus/network_info/NetworkInfoPlusPlugin.java

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+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package dev.fluttercommunity.plus.network_info;
+
+import android.content.Context;
+import android.net.wifi.WifiManager;
+import io.flutter.embedding.engine.plugins.FlutterPlugin;
+import io.flutter.plugin.common.BinaryMessenger;
+import io.flutter.plugin.common.MethodChannel;
+import io.flutter.plugin.common.PluginRegistry.Registrar;
+
+/** NetworkInfoPlusPlugin */
+public class NetworkInfoPlusPlugin implements FlutterPlugin {
+
+  private MethodChannel methodChannel;
+
+  /** Plugin registration. */
+  public static void registerWith(Registrar registrar) {
+
+    NetworkInfoPlusPlugin plugin = new NetworkInfoPlusPlugin();
+    plugin.setupChannels(registrar.messenger(), registrar.context());
+  }
+
+  @Override
+  public void onAttachedToEngine(FlutterPluginBinding binding) {
+    setupChannels(binding.getBinaryMessenger(), binding.getApplicationContext());
+  }
+
+  @Override
+  public void onDetachedFromEngine(FlutterPluginBinding binding) {
+    teardownChannels();
+  }
+
+  private void setupChannels(BinaryMessenger messenger, Context context) {
+    methodChannel = new MethodChannel(messenger, "dev.fluttercommunity.plus/network_info");
+    WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
+
+    NetworkInfo networkInfo = new NetworkInfo(wifiManager);
+
+    NetworkInfoMethodChannelHandler methodChannelHandler =
+        new NetworkInfoMethodChannelHandler(networkInfo);
+
+    methodChannel.setMethodCallHandler(methodChannelHandler);
+  }
+
+  private void teardownChannels() {
+    methodChannel.setMethodCallHandler(null);
+    methodChannel = null;
+  }
+}