Register a callback for receiving messages from the host application.
Source
static void addMessageHandler(String channel, Future<String> callback(String message)) {
PlatformMessages.setStringMessageHandler(channel, callback);
}
Register a callback for receiving messages from the host application.
static void addMessageHandler(String channel, Future<String> callback(String message)) {
PlatformMessages.setStringMessageHandler(channel, callback);
}