Updated Example to null safety

example/.flutter-plugins-dependencies

@@ -1 +1 @@
-{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"flutter_share_me","path":"/Users/jigafumakiya/Documents/Jigar/plugin/flutter_share_me/","dependencies":[]},{"name":"image_picker","path":"/Users/jigafumakiya/Documents/FlutterSDK/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.8.3+1/","dependencies":[]}],"android":[{"name":"flutter_plugin_android_lifecycle","path":"/Users/jigafumakiya/Documents/FlutterSDK/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_plugin_android_lifecycle-2.0.2/","dependencies":[]},{"name":"flutter_share_me","path":"/Users/jigafumakiya/Documents/Jigar/plugin/flutter_share_me/","dependencies":[]},{"name":"image_picker","path":"/Users/jigafumakiya/Documents/FlutterSDK/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.8.3+1/","dependencies":["flutter_plugin_android_lifecycle"]}],"macos":[],"linux":[],"windows":[],"web":[{"name":"image_picker_for_web","path":"/Users/jigafumakiya/Documents/FlutterSDK/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker_for_web-2.1.2/","dependencies":[]}]},"dependencyGraph":[{"name":"flutter_plugin_android_lifecycle","dependencies":[]},{"name":"flutter_share_me","dependencies":[]},{"name":"image_picker","dependencies":["flutter_plugin_android_lifecycle","image_picker_for_web"]},{"name":"image_picker_for_web","dependencies":[]}],"date_created":"2021-08-09 21:40:53.331373","version":"2.2.3"}
+{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"flutter_share_me","path":"/Users/jigafumakiya/Documents/Jigar/plugin/flutter_share_me/","dependencies":[]}],"android":[{"name":"flutter_share_me","path":"/Users/jigafumakiya/Documents/Jigar/plugin/flutter_share_me/","dependencies":[]}],"macos":[],"linux":[],"windows":[],"web":[]},"dependencyGraph":[{"name":"flutter_share_me","dependencies":[]}],"date_created":"2021-08-09 23:04:56.041201","version":"2.2.3"}

example/lib/main.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_share_me/flutter_share_me.dart';
-import 'package:image_picker/image_picker.dart';
+
+enum Share { facebook, twitter, whatsapp, whatsapp_business, share_system }
 
 void main() => runApp(MyApp());
 
@@ -10,12 +11,6 @@ class MyApp extends StatefulWidget {
 }
 
 class _MyAppState extends State<MyApp> {
-  String msg = 'Flutter share is great!!';
-  FlutterShareMe shareMe = FlutterShareMe();
-  String base;
-  XFile image;
-  ImagePicker _picker = ImagePicker();
-
   @override
   void initState() {
     // TODO: implement initState
@@ -35,65 +30,59 @@ class _MyAppState extends State<MyApp> {
             crossAxisAlignment: CrossAxisAlignment.center,
             children: <Widget>[
               SizedBox(height: 30),
-              RaisedButton(
-                child: Text('Pick image'),
-                onPressed: () async {
-                  image = await _picker.pickImage(source: ImageSource.gallery);
-                  setState(() {});
-                },
-              ),
-              SizedBox(height: 30),
-              RaisedButton(
-                child: Text('share to twitter'),
-                onPressed: () async {
-                  var response = await FlutterShareMe().shareToTwitter(
-                      url: 'https://github.com/lizhuoyuan', msg: msg);
-                  if (response == 'success') {
-                    print('navigate success');
-                  }
-                },
-              ),
-              RaisedButton(
+              ElevatedButton(
+                  onPressed: () => onButtonTap(Share.twitter),
+                  child: Text('share to twitter')),
+              ElevatedButton(
+                onPressed: () => onButtonTap(Share.whatsapp),
                 child: Text('share to WhatsApp'),
-                onPressed: () {
-
-                  FlutterShareMe().shareToWhatsApp(msg: msg);
-
-
-                },
               ),
-              RaisedButton(
-                child: Text('share to WhatsApp Business'),
-                onPressed: () async {
-                  String response;
-
-                    response =await FlutterShareMe().shareToWhatsApp(msg: msg);
-
-                  print(response);
-                },
+              ElevatedButton(
+                onPressed: () => onButtonTap(Share.whatsapp_business),
+                child: Text('share to WhatsApp  Business'),
               ),
-              RaisedButton(
-                child: Text('share to shareFacebook'),
-                onPressed: () {
-                  FlutterShareMe().shareToFacebook(
-                      url: 'https://pub.dev/packages/flutter_share_me',
-                      msg: msg);
-                },
+              ElevatedButton(
+                onPressed: () => onButtonTap(Share.facebook),
+                child: Text('share to  FaceBook'),
               ),
-              RaisedButton(
+              ElevatedButton(
+                onPressed: () => onButtonTap(Share.share_system),
                 child: Text('share to System'),
-                onPressed: () async {
-                  var response = await FlutterShareMe()
-                      .shareToSystem(msg: 'Here is the share value');
-                  if (response == 'success') {
-                    print('navigate success');
-                  }
-                },
               ),
             ],
           ),
         ),
       ),
     );
   }
+
+  Future<void> onButtonTap(Share share) async {
+    String msg =
+        'Flutter share is great!!\n Check out full example at https://pub.dev/packages/flutter_share_me';
+    String url = 'https://pub.dev/packages/flutter_share_me';
+
+    String? response;
+    FlutterShareMe flutterShareMe = FlutterShareMe();
+    switch (share) {
+      case Share.facebook:
+        response = await flutterShareMe.shareToFacebook(url: url, msg: msg);
+        break;
+      case Share.twitter:
+        response = await flutterShareMe.shareToTwitter(url: url, msg: msg);
+        break;
+      case Share.whatsapp:
+        response = await flutterShareMe.shareToWhatsApp(msg: msg);
+        break;
+      case Share.whatsapp_business:
+        response = await flutterShareMe.shareToWhatsApp(msg: msg);
+
+        break;
+      case Share.share_system:
+        response = await flutterShareMe.shareToSystem(msg: msg);
+
+        break;
+    }
+
+    print(response);
+  }
 }

example/pubspec.yaml

@@ -3,7 +3,7 @@ description: Demonstrates how to use the flutter_share_me plugin.
 publish_to: 'none'
 
 environment:
-  sdk: ">=2.0.0-dev.68.0 <3.0.0"
+  sdk: '>=2.12.0 <3.0.0'
 
 dependencies:
   flutter:
@@ -12,7 +12,6 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^0.1.2
-  image_picker: ^0.8.3+1
 
 dev_dependencies:
   flutter_test:

ios/Classes/SwiftFlutterShareMePlugin.swift

@@ -153,14 +153,20 @@ public class SwiftFlutterShareMePlugin: NSObject, FlutterPlugin, SharingDelegate
         // cast to an url
         let urlschme = URL(string: escapedShareString)
         // open in safari
-        if UIApplication.shared.canOpenURL(urlschme! as URL){
-            UIApplication.shared.openURL(urlschme!)
-            result("Sucess")
-        }else{
+       do {
+            if UIApplication.shared.canOpenURL(urlschme! as URL){
+                UIApplication.shared.openURL(urlschme!)
+                result("Sucess")
+            }else{
+                result(FlutterError(code: "Not found", message: "Twitter is not found", details: "Twitter not intalled or Check url scheme."));
+
+            }
+        } catch  {
             result(FlutterError(code: "Not found", message: "Twitter is not found", details: "Twitter not intalled or Check url scheme."));
         }
 
 
+
     }
 
 

lib/flutter_share_me.dart

@@ -32,6 +32,7 @@ class FlutterShareMe {
   }
 
   ///share to WhatsApp
+  /// @parm imageUrl is local image
   Future<String?> shareToWhatsApp({String msg = '', String imageUrl = ''}) async {
     final Map<String, dynamic> arguments = Map<String, dynamic>();
     arguments.putIfAbsent('msg', () => msg);
@@ -47,6 +48,7 @@ class FlutterShareMe {
   }
 
   ///share to WhatsApp4Biz
+  /// @parm imageUrl is local image
   Future<String?> shareToWhatsApp4Biz({String msg = '', String imageUrl = ''}) async {
     final Map<String, dynamic> arguments = Map<String, dynamic>();
     arguments.putIfAbsent('msg', () => msg);