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protocol_handler
This plugin allows Flutter apps to register and handle custom protocols (i.e. deep linking).
English | 简体中文
Platform Support
| Android |
iOS |
Linux |
macOS |
Windows |
| ✔️ |
✔️ |
➖ |
✔️ |
✔️ |
Screenshots
https://user-images.githubusercontent.com/3889523/167283452-aff2535b-c322-45c7-949f-d1c80c2e4a60.mp4
Quick Start
Installation
Add this to your package's pubspec.yaml file:
dependencies:
protocol_handler: ^0.2.0
Or
dependencies:
protocol_handler:
git:
url: https://github.com/leanflutter/protocol_handler.git
ref: main
Usage
Android
Change the file android/app/src/main/AndroidManifest.xml as follows:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="dev.leanflutter.plugins.protocol_handler_example">
<application
android:name="${applicationName}"
android:icon="@mipmap/ic_launcher"
android:label="protocol_handler_example">
<activity
android:name=".MainActivity"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:exported="true"
android:hardwareAccelerated="true"
android:launchMode="singleTop"
android:theme="@style/LaunchTheme"
android:windowSoftInputMode="adjustResize">
<!-- Specifies an Android theme to apply to this Activity as soon as
the Android process has started. This theme is visible to the user
while the Flutter UI initializes. After that, this theme continues
to determine the Window background behind the Flutter UI. -->
<meta-data
android:name="io.flutter.embedding.android.NormalTheme"
android:resource="@style/NormalTheme" />
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
+ <intent-filter>
+ <action android:name="android.intent.action.VIEW" />
+
+ <category android:name="android.intent.category.DEFAULT" />
+ <category android:name="android.intent.category.BROWSABLE" />
+ <!-- Accepts URIs that begin with YOUR_SCHEME://YOUR_HOST -->
+ <data android:scheme="myprotocol" />
+ </intent-filter>
</activity>
<!-- Don't delete the meta-data below.
This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
<meta-data
android:name="flutterEmbedding"
android:value="2" />
</application>
</manifest>
iOS
Change the file ios/Runner/Info.plist as follows:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>$(DEVELOPMENT_LANGUAGE)</string>
<key>CFBundleDisplayName</key>
<string>Protocol Handler</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>protocol_handler_example</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>$(FLUTTER_BUILD_NAME)</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>$(FLUTTER_BUILD_NUMBER)</string>
<key>LSRequiresIPhoneOS</key>
<true/>
<key>UILaunchStoryboardName</key>
<string>LaunchScreen</string>
<key>UIMainStoryboardFile</key>
<string>Main</string>
+ <key>CFBundleURLTypes</key>
+ <array>
+ <dict>
+ <key>CFBundleTypeRole</key>
+ <string>Editor</string>
+ <key>CFBundleURLName</key>
+ <string></string>
+ <key>CFBundleURLSchemes</key>
+ <array>
+ <string>myprotocol</string>
+ </array>
+ </dict>
+ </array>
<key>UISupportedInterfaceOrientations</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
<key>UISupportedInterfaceOrientations~ipad</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationPortraitUpsideDown</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
<key>UIViewControllerBasedStatusBarAppearance</key>
<false/>
</dict>
</plist>
macOS
Change the file macos/Runner/Info.plist as follows:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>$(DEVELOPMENT_LANGUAGE)</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIconFile</key>
<string></string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>$(FLUTTER_BUILD_NAME)</string>
<key>CFBundleVersion</key>
<string>$(FLUTTER_BUILD_NUMBER)</string>
<key>LSMinimumSystemVersion</key>
<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
<key>NSHumanReadableCopyright</key>
<string>$(PRODUCT_COPYRIGHT)</string>
<key>NSMainNibFile</key>
<string>MainMenu</string>
+ <key>CFBundleURLTypes</key>
+ <array>
+ <dict>
+ <key>CFBundleTypeRole</key>
+ <string>Editor</string>
+ <key>CFBundleURLName</key>
+ <string></string>
+ <key>CFBundleURLSchemes</key>
+ <array>
+ <string>myprotocol</string>
+ </array>
+ </dict>
+ </array>
<key>NSPrincipalClass</key>
<string>NSApplication</string>
</dict>
</plist>
Windows
Change the file windows/runner/main.cpp as follows:
#include <flutter/dart_project.h>
#include <flutter/flutter_view_controller.h>
#include <windows.h>
#include "flutter_window.h"
#include "utils.h"
+#include <protocol_handler_windows/protocol_handler_windows_plugin_c_api.h>
int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
_In_ wchar_t *command_line, _In_ int show_command) {
+ // Replace protocol_handler_example with your_window_title.
+ HWND hwnd = ::FindWindow(L"FLUTTER_RUNNER_WIN32_WINDOW", L"protocol_handler_example");
+ if (hwnd != NULL) {
+ DispatchToProtocolHandler(hwnd);
+
+ ::ShowWindow(hwnd, SW_NORMAL);
+ ::SetForegroundWindow(hwnd);
+ return EXIT_FAILURE;
+ }
// Attach to console when present (e.g., 'flutter run') or create a
// new console when running with a debugger.
if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
CreateAndAttachConsole();
}
// Initialize COM, so that it is available for use in the library and/or
// plugins.
::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
flutter::DartProject project(L"data");
std::vector<std::string> command_line_arguments =
GetCommandLineArguments();
project.set_dart_entrypoint_arguments(std::move(command_line_arguments));
FlutterWindow window(project);
Win32Window::Point origin(10, 10);
Win32Window::Size size(1280, 720);
if (!window.CreateAndShow(L"protocol_handler_example", origin, size)) {
return EXIT_FAILURE;
}
window.SetQuitOnClose(true);
::MSG msg;
while (::GetMessage(&msg, nullptr, 0, 0)) {
::TranslateMessage(&msg);
::DispatchMessage(&msg);
}
::CoUninitialize();
return EXIT_SUCCESS;
}
If you use MSIX to package your application, you need to add protocol_activation configuration in msix_config:
msix_config:
protocol_activation: myprotocol
See this issue for details: YehudaKremer/msix#187
import 'package:protocol_handler/protocol_handler.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await protocolHandler.register('myprotocol');
runApp(MyApp());
}
Listening events
class HomePage extends StatefulWidget {
const HomePage({Key? key}) : super(key: key);
@override
State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> with ProtocolListener {
@override
void initState() {
protocolHandler.addListener(this);
super.initState();
}
@override
void dispose() {
protocolHandler.removeListener(this);
super.dispose();
}
@override
Widget build(BuildContext context) {
}
@override
void onProtocolUrlReceived(String url) {
String log = 'Url received: $url)';
print(log);
}
}
Please see the example app of this plugin for a full example.
Who's using it?
- Biyi - A convenient translation and dictionary app.
License
MIT
