Flutter: Using path provider when app is in background
you need to register path provider in Application.java as well.
import io.flutter.plugins.pathprovider.PathProviderPlugin;
...
@Override
public void registerWith(PluginRegistry registry) {
PathProviderPlugin.registerWith(registry.registrarFor("io.flutter.plugins.pathprovider.PathProviderPlugin"));
}
Now that flutter uses Kotlin as the default language for android side, here is the Kotlin code:
override fun registerWith(registry: PluginRegistry) {
io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin.registerWith(registry?.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));
PathProviderPlugin.registerWith(registry.registrarFor("io.flutter.plugins.pathprovider.PathProviderPlugin"))
}
barbecu
Updated on December 22, 2022Comments
-
barbecu over 1 year
I am currently trying to implement FCM and local notifications into my Flutter app. I have successfully configured FCM and the Local notifications for normal notifications, But i also have a different type of notification that I would like to display with an Image, When my app is in the foreground the notification is displayed without error, However when I terminate the app / move it to background I get an exception when trying to save the image using path provider.
The exception:
MissingPluginException(No implementation found for method getApplicationDocumentsDirectory on channel plugins.flutter.io/path_provider)
I'm assuming this error is occurring because the path provider method channel is closed when the app is not in the foreground, Is there something I can do to fix this? Or if not the
flutter_local_notifications
plugin requires a filepath to a bitmap, Can I achieve saving the image and getting a path in a different way that will work in background (without path provider)? (What I actually would like to display is an image from a link like this one: https://is1-ssl.mzstatic.com/image/thumb/WNUBiv2P6YSklHn9eA5nlg/1000x1000bb.jpeg)Saving the image:
static Future<String> saveImage(Image image) { final completer = Completer<String>(); image.image.resolve(ImageConfiguration()).addListener(ImageStreamListener((imageInfo,_) async { final byteData = await imageInfo.image.toByteData(format: ImageByteFormat.png); final pngBytes = byteData.buffer.asUint8List(); final fileName = pngBytes.hashCode; final directory = await getApplicationDocumentsDirectory(); final filePath = '${directory.path}/$fileName'; final file = File(filePath); await file.writeAsBytes(pngBytes); completer.complete(filePath); })); return completer.future; }