v0.5.2

CHANGELOG.md

+## 0.5.2
+
+- fixed some missing `result.success()` on Android and iOS
+- added `postUrl()` method for `InAppWebView` and `InAppBrowser`
+- added `loadData()` method for `InAppWebView` and `InAppBrowser`
+
 ## 0.5.1
 
 - updated README.md

README.md

@@ -295,7 +295,6 @@ InAppWebView(
 }
 ```
 
-
 #### Future\<void\> InAppWebViewController.loadUrl
 
 Loads the given `url` with optional `headers` specified as a map from name to value.
@@ -304,6 +303,24 @@ Loads the given `url` with optional `headers` specified as a map from name to va
 inAppWebViewController.loadUrl(String url, {Map<String, String> headers = const {}});
 ```
 
+#### Future\<void\> InAppWebViewController.postUrl
+
+Loads the given `url` with `postData` using `POST` method into this WebView.
+
+```dart
+inAppWebViewController.postUrl(String url, Uint8List postData);
+```
+
+#### Future\<void\> InAppWebViewController.loadData
+
+Loads the given `data` into this WebView, using `baseUrl` as the base URL for the content.
+The `mimeType` parameter specifies the format of the data.
+The `encoding` parameter specifies the encoding of the data.
+
+```dart
+inAppWebViewController.loadData(String data, {String mimeType = "text/html", String encoding = "utf8", String baseUrl = "about:blank"});
+```
+
 #### Future\<void\> InAppWebViewController.loadFile
 
 Loads the given `assetFilePath` with optional `headers` specified as a map from name to value.

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/FlutterWebView.java

@@ -83,6 +83,25 @@ public class FlutterWebView implements PlatformView, MethodCallHandler  {
         else
           result.success(false);
         break;
+      case "postUrl":
+        if (webView != null)
+          webView.postUrl(call.argument("url").toString(), (byte[]) call.argument("postData"), result);
+        else
+          result.success(false);
+        break;
+      case "loadData":
+        {
+          String data = call.argument("data").toString();
+          String mimeType = call.argument("mimeType").toString();
+          String encoding = call.argument("encoding").toString();
+          String baseUrl = call.argument("baseUrl").toString();
+
+          if (webView != null)
+            webView.loadData(data, mimeType, encoding, baseUrl, result);
+          else
+            result.success(false);
+        }
+        break;
       case "loadFile":
         if (webView != null)
           webView.loadFile(call.argument("url").toString(), (Map<String, String>) call.argument("headers"), result);

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppBrowserActivity.java

@@ -180,6 +180,22 @@ public class InAppBrowserActivity extends AppCompatActivity {
     }
   }
 
+  public void postUrl(String url, byte[] postData, MethodChannel.Result result) {
+    if (webView != null) {
+      webView.postUrl(url, postData, result);
+    } else {
+      result.error(LOG_TAG, "Cannot load url " + url, null);
+    }
+  }
+
+  public void loadData(String data, String mimeType, String encoding, String baseUrl, MethodChannel.Result result) {
+    if (webView != null) {
+      webView.loadData(data, mimeType, encoding, baseUrl, result);
+    } else {
+      result.error(LOG_TAG, "Cannot load data", null);
+    }
+  }
+
   public void loadFile(String url, MethodChannel.Result result) {
     if (webView != null) {
       webView.loadFile(url, result);

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppBrowserFlutterPlugin.java

@@ -137,8 +137,7 @@ public class InAppBrowserFlutterPlugin implements MethodCallHandler {
               if (openWithSystemBrowser) {
                 Log.d(LOG_TAG, "in system");
                 openExternal(url, result);
-              }
-              else {
+              } else {
                 //Load the dialer
                 if (url.startsWith(WebView.SCHEME_TEL)) {
                   try {
@@ -163,6 +162,18 @@ public class InAppBrowserFlutterPlugin implements MethodCallHandler {
       case "loadUrl":
         loadUrl(uuid, call.argument("url").toString(), (Map<String, String>) call.argument("headers"), result);
         break;
+      case "postUrl":
+        postUrl(uuid, call.argument("url").toString(), (byte[]) call.argument("postData"), result);
+        break;
+      case "loadData":
+        {
+          String data = call.argument("data").toString();
+          String mimeType = call.argument("mimeType").toString();
+          String encoding = call.argument("encoding").toString();
+          String baseUrl = call.argument("baseUrl").toString();
+          loadData(uuid, data, mimeType, encoding, baseUrl, result);
+        }
+        break;
       case "loadFile":
         loadFile(uuid, call.argument("url").toString(), (Map<String, String>) call.argument("headers"), result);
         break;
@@ -393,6 +404,18 @@ public class InAppBrowserFlutterPlugin implements MethodCallHandler {
     }
   }
 
+  public void postUrl(String uuid, String url, byte[] postData, Result result) {
+    InAppBrowserActivity inAppBrowserActivity = webViewActivities.get(uuid);
+    if (inAppBrowserActivity != null)
+      inAppBrowserActivity.postUrl(url, postData, result);
+  }
+
+  public void loadData(String uuid, String data, String mimeType, String encoding, String baseUrl, Result result) {
+    InAppBrowserActivity inAppBrowserActivity = webViewActivities.get(uuid);
+    if (inAppBrowserActivity != null)
+      inAppBrowserActivity.loadData(data, mimeType, encoding, baseUrl, result);
+  }
+
   public void loadFile(String uuid, String url, Map<String, String> headers, Result result) {
     InAppBrowserActivity inAppBrowserActivity = webViewActivities.get(uuid);
     if (inAppBrowserActivity != null) {

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppWebView/InAppWebView.java

@@ -183,7 +183,9 @@ public class InAppWebView extends WebView {
       loadUrl(url);
     } else {
       result.error(LOG_TAG, "url is empty", null);
+      return;
     }
+    result.success(true);
   }
 
   public void loadUrl(String url, Map<String, String> headers, MethodChannel.Result result) {
@@ -191,7 +193,24 @@ public class InAppWebView extends WebView {
       loadUrl(url, headers);
     } else {
       result.error(LOG_TAG, "url is empty", null);
+      return;
     }
+    result.success(true);
+  }
+
+  public void postUrl(String url, byte[] postData, MethodChannel.Result result) {
+    if (!url.isEmpty()) {
+      postUrl(url, postData);
+    } else {
+      result.error(LOG_TAG, "url is empty", null);
+      return;
+    }
+    result.success(true);
+  }
+
+  public void loadData(String data, String mimeType, String encoding, String baseUrl, MethodChannel.Result result) {
+    loadDataWithBaseURL(baseUrl, data, mimeType, encoding, null);
+    result.success(true);
   }
 
   public void loadFile(String url, MethodChannel.Result result) {
@@ -206,7 +225,9 @@ public class InAppWebView extends WebView {
       loadUrl(url);
     } else {
       result.error(LOG_TAG, "url is empty", null);
+      return;
     }
+    result.success(true);
   }
 
   public void loadFile(String url, Map<String, String> headers, MethodChannel.Result result) {
@@ -221,7 +242,9 @@ public class InAppWebView extends WebView {
       loadUrl(url, headers);
     } else {
       result.error(LOG_TAG, "url is empty", null);
+      return;
     }
+    result.success(true);
   }
 
   public boolean isLoading() {

example/lib/main.dart

 import 'dart:async';
-import 'dart:convert' show base64;
+import 'dart:convert';
 import 'package:flutter/material.dart';
 import 'package:flutter_inappbrowser/flutter_inappbrowser.dart';
 
@@ -7,9 +7,9 @@ class MyInAppBrowser extends InAppBrowser {
   @override
   Future onLoadStart(String url) async {
     print("\n\nStarted $url\n\n");
-    print("\n\n ${await this.isHidden()} \n\n");
-    print(await this.webViewController.canGoBack());
-    print(await this.webViewController.canGoForward());
+//    print("\n\n ${await this.isHidden()} \n\n");
+//    print(await this.webViewController.canGoBack());
+//    print(await this.webViewController.canGoForward());
   }
 
   @override
@@ -105,7 +105,7 @@ class MyInAppBrowser extends InAppBrowser {
 
   @override
   void onProgressChanged(int progress) {
-    print("Progress: $progress");
+//    print("Progress: $progress");
   }
 
   @override
@@ -117,6 +117,47 @@ class MyInAppBrowser extends InAppBrowser {
   void shouldOverrideUrlLoading(String url) {
     print("\n\n override $url\n\n");
     this.webViewController.loadUrl(url);
+    
+//    var postData = "username=my_username&password=my_password";
+//    inAppBrowserFallback.webViewController.postUrl("http://localhost:8080", utf8.encode(postData));
+    
+//    var htmlData = """
+//<!doctype html>
+//<html lang="en">
+//<head>
+//    <meta charset="UTF-8">
+//    <meta name="viewport"
+//          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+//    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+//    <title>Document</title>
+//    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
+//    <link rel="stylesheet" href="http://localhost:8080/assets/css/style.css">
+//    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
+//</head>
+//<body>
+//<div class="container">
+//    <div class="container">
+//        <img src="http://localhost:8080/assets/images/dart.svg" alt="dart logo">
+//        <div class="row">
+//            <div class="col-sm">
+//                One of three columns
+//            </div>
+//            <div class="col-sm">
+//                One of three columns
+//            </div>
+//            <div class="col-sm">
+//                One of three columns
+//            </div>
+//        </div>
+//    </div>
+//    <script>
+//        console.log("hello");
+//    </script>
+//</div>
+//</body>
+//</html>
+//    """;
+//    inAppBrowserFallback.webViewController.loadData(htmlData);
   }
 
   @override
@@ -231,10 +272,10 @@ class _MyAppState extends State<MyApp> {
 //              });
 //
               await inAppBrowserFallback.open(url: "https://flutter.io/", options: {
-                "useOnLoadResource": true,
+                //"useOnLoadResource": true,
                 //"hidden": true,
                 //"toolbarTopFixedTitle": "Fixed title",
-                //"useShouldOverrideUrlLoading": true
+                "useShouldOverrideUrlLoading": true
                 //"hideUrlBar": true,
                 //"toolbarTop": false,
                 //"toolbarBottom": false

ios/Classes/InAppBrowserWebViewController.swift

@@ -378,6 +378,34 @@ class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigatio
         webView.load(request)
     }
     
+    func loadData(data: String, mimeType: String, encoding: String, baseUrl: String) {
+        let url = URL(string: baseUrl)!
+        currentURL = url
+        if #available(iOS 9.0, *) {
+            webView.load(data.data(using: .utf8)!, mimeType: mimeType, characterEncodingName: encoding, baseURL: url)
+        } else {
+            webView.loadHTMLString(data, baseURL: url)
+        }
+    }
+    
+    func postUrl(url: URL, postData: Data, result: @escaping FlutterResult) {
+        var request = URLRequest(url: url)
+        request.httpMethod = "POST"
+        request.httpBody = postData
+        
+        let task = URLSession.shared.dataTask(with: request) { (data : Data?, response : URLResponse?, error : Error?) in
+            var returnString = ""
+            if data != nil {
+                returnString = String(data: data!, encoding: .utf8) ?? ""
+            }
+            DispatchQueue.main.async(execute: {() -> Void in
+                self.webView.loadHTMLString(returnString, baseURL: url)
+                result(true)
+            })
+        }
+        task.resume()
+    }
+    
     // Load user requested url
     func textFieldShouldReturn(_ textField: UITextField) -> Bool {
         textField.resignFirstResponder()

ios/Classes/SwiftFlutterPlugin.swift

@@ -68,6 +68,12 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
             case "loadUrl":
                 self.loadUrl(uuid: uuid, arguments: arguments!, result: result)
                 break
+            case "loadData":
+                self.loadData(uuid: uuid, arguments: arguments!, result: result)
+                break
+            case "postUrl":
+                self.postUrl(uuid: uuid, arguments: arguments!, result: result)
+                break
             case "loadFile":
                 self.loadFile(uuid: uuid, arguments: arguments!, result: result)
                 break
@@ -384,10 +390,34 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
         }
         else {
             result(FlutterError(code: "InAppBrowserFlutterPlugin", message: "url is empty", details: nil))
+            return
+        }
+        result(true)
     }
+    
+    public func loadData(uuid: String, arguments: NSDictionary, result: @escaping FlutterResult) {
+        let webViewController: InAppBrowserWebViewController = self.webViewControllers[uuid] as! InAppBrowserWebViewController
+        let data = (arguments["data"] as? String)!
+        let mimeType = (arguments["mimeType"] as? String)!
+        let encoding = (arguments["encoding"] as? String)!
+        let baseUrl = (arguments["baseUrl"] as? String)!
+        webViewController.loadData(data: data, mimeType: mimeType, encoding: encoding, baseUrl: baseUrl)
         result(true)
     }
     
+    public func postUrl(uuid: String, arguments: NSDictionary, result: @escaping FlutterResult) {
+        let webViewController: InAppBrowserWebViewController = self.webViewControllers[uuid] as! InAppBrowserWebViewController
+        if let url = arguments["url"] as? String {
+            let postData = (arguments["postData"] as? FlutterStandardTypedData)!
+            let absoluteUrl = URL(string: url)!.absoluteURL
+            webViewController.postUrl(url: absoluteUrl, postData: postData.data, result: result)
+        }
+        else {
+            result(FlutterError(code: "InAppBrowserFlutterPlugin", message: "url is empty", details: nil))
+            return
+        }
+    }
+    
     public func loadFile(uuid: String, arguments: NSDictionary, result: @escaping FlutterResult) {
         let webViewController: InAppBrowserWebViewController = self.webViewControllers[uuid] as! InAppBrowserWebViewController
         if let url = arguments["url"] as? String {
@@ -404,6 +434,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
         }
         else {
             result(FlutterError(code: "InAppBrowserFlutterPlugin", message: "url is empty", details: nil))
+            return
         }
         result(true)
     }
@@ -458,6 +489,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
     func open(inSystem url: URL, result: @escaping FlutterResult) {
         if !UIApplication.shared.canOpenURL(url) {
             result(FlutterError(code: "InAppBrowserFlutterPlugin", message: url.absoluteString + " cannot be opened!", details: nil))
+            return
         }
         else {
             if #available(iOS 10.0, *) {

lib/flutter_inappbrowser.dart

@@ -189,7 +189,7 @@ class InAppBrowser {
   ///    - __allowsPictureInPictureMediaPlayback__: Set to `true` to allow HTML5 videos play picture-in-picture. The default value is `true`.
   ///    - __spinner__: Set to `false` to hide the spinner when the WebView is loading a page. The default value is `true`.
   Future<void> open({String url = "about:blank", Map<String, String> headers = const {}, Map<String, dynamic> options = const {}}) async {
-    assert(url != null);
+    assert(url != null && url.isNotEmpty);
     this._throwIsAlreadyOpened(message: 'Cannot open $url!');
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('uuid', () => uuid);
@@ -233,7 +233,7 @@ class InAppBrowser {
   ///...
   ///```
   Future<void> openFile(String assetFilePath, {Map<String, String> headers = const {}, Map<String, dynamic> options = const {}}) async {
-    assert(assetFilePath != null);
+    assert(assetFilePath != null && assetFilePath.isNotEmpty);
     this._throwIsAlreadyOpened(message: 'Cannot open $assetFilePath!');
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('uuid', () => uuid);
@@ -249,7 +249,7 @@ class InAppBrowser {
 
   ///This is a static method that opens an [url] in the system browser. You wont be able to use the [InAppBrowser] methods here!
   static Future<void> openWithSystemBrowser(String url) async {
-    assert(url != null);
+    assert(url != null && url.isNotEmpty);
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('uuid', () => "");
     args.putIfAbsent('url', () => url);
@@ -441,7 +441,7 @@ class ChromeSafariBrowser {
   ///- __presentationStyle__: Set the custom modal presentation style when presenting the WebView. The default value is `0 //fullscreen`. See [UIModalPresentationStyle](https://developer.apple.com/documentation/uikit/uimodalpresentationstyle) for all the available styles.
   ///- __transitionStyle__: Set to the custom transition style when presenting the WebView. The default value is `0 //crossDissolve`. See [UIModalTransitionStyle](https://developer.apple.com/documentation/uikit/uimodaltransitionStyle) for all the available styles.
   Future<void> open(String url, {Map<String, dynamic> options = const {}, Map<String, String> headersFallback = const {}, Map<String, dynamic> optionsFallback = const {}}) async {
-    assert(url != null);
+    assert(url != null && url.isNotEmpty);
     this._throwIsAlreadyOpened(message: 'Cannot open $url!');
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('uuid', () => uuid);
@@ -768,7 +768,7 @@ class InAppWebViewController {
 
   ///Loads the given [url] with optional [headers] specified as a map from name to value.
   Future<void> loadUrl(String url, {Map<String, String> headers = const {}}) async {
-    assert(url != null);
+    assert(url != null && url.isNotEmpty);
     Map<String, dynamic> args = <String, dynamic>{};
     if (_inAppBrowserUuid != null) {
       _inAppBrowser._throwIsNotOpened(message: 'Cannot laod $url!');
@@ -779,6 +779,37 @@ class InAppWebViewController {
     await _channel.invokeMethod('loadUrl', args);
   }
 
+  ///Loads the given [url] with [postData] using `POST` method into this WebView.
+  Future<void> postUrl(String url, Uint8List postData) async {
+    assert(url != null && url.isNotEmpty);
+    assert(postData != null);
+    Map<String, dynamic> args = <String, dynamic>{};
+    if (_inAppBrowserUuid != null) {
+      _inAppBrowser._throwIsNotOpened(message: 'Cannot laod $url!');
+      args.putIfAbsent('uuid', () => _inAppBrowserUuid);
+    }
+    args.putIfAbsent('url', () => url);
+    args.putIfAbsent('postData', () => postData);
+    await _channel.invokeMethod('postUrl', args);
+  }
+
+  ///Loads the given [data] into this WebView, using [baseUrl] as the base URL for the content.
+  ///The [mimeType] parameter specifies the format of the data.
+  ///The [encoding] parameter specifies the encoding of the data.
+  Future<void> loadData(String data, {String mimeType = "text/html", String encoding = "utf8", String baseUrl = "about:blank"}) async {
+    assert(data != null);
+    Map<String, dynamic> args = <String, dynamic>{};
+    if (_inAppBrowserUuid != null) {
+      _inAppBrowser._throwIsNotOpened();
+      args.putIfAbsent('uuid', () => _inAppBrowserUuid);
+    }
+    args.putIfAbsent('data', () => data);
+    args.putIfAbsent('mimeType', () => mimeType);
+    args.putIfAbsent('encoding', () => encoding);
+    args.putIfAbsent('baseUrl', () => baseUrl);
+    await _channel.invokeMethod('loadData', args);
+  }
+
   ///Loads the given [assetFilePath] with optional [headers] specified as a map from name to value.
   ///
   ///To be able to load your local files (assets, js, css, etc.), you need to add them in the `assets` section of the `pubspec.yaml` file, otherwise they cannot be found!
@@ -809,7 +840,7 @@ class InAppWebViewController {
   ///...
   ///```
   Future<void> loadFile(String assetFilePath, {Map<String, String> headers = const {}}) async {
-    assert(assetFilePath != null);
+    assert(assetFilePath != null && assetFilePath.isNotEmpty);
     Map<String, dynamic> args = <String, dynamic>{};
     if (_inAppBrowserUuid != null) {
       _inAppBrowser._throwIsNotOpened(message: 'Cannot laod $assetFilePath!');
@@ -1064,8 +1095,6 @@ class InAppLocalhostServer {
             }
           }
 
-          print(contentType);
-
           request.response.headers.contentType = new ContentType(contentType[0], contentType[1], charset: 'utf-8');
           request.response.add(body);
           request.response.close();

pubspec.yaml

 name: flutter_inappbrowser
 description: A Flutter plugin that allows you to add an inline webview or open an in-app browser window. (inspired by the popular cordova-plugin-inappbrowser).
-version: 0.5.1
+version: 0.5.2
 author: Lorenzo Pichilli <pichillilorenzo@gmail.com>
 homepage: https://github.com/pichillilorenzo/flutter_inappbrowser