File upload works

instarip/lib/main.dart

@@ -3,6 +3,13 @@ import 'package:instarip/login_screen.dart';
 import 'package:instarip/authentication.dart';
 import 'package:instarip/homepage.dart';
 
+import 'package:path_provider/path_provider.dart';
+import 'package:path/path.dart' as p;
+import 'package:watcher/watcher.dart';
+import 'dart:io';
+import 'package:image/image.dart' as Img;
+import 'package:firebase_storage/firebase_storage.dart';
+
 void main() => runApp(MyApp());
 
 class MyApp extends StatelessWidget {
@@ -15,7 +22,52 @@ class MyApp extends StatelessWidget {
         ),
         home: StreamBuilder(
             stream: authService.user,
-            builder: (context, snapshot) =>
-                (snapshot.hasData) ? GridList(uid: snapshot.data.uid) : LoginSignUpPage()));
+            builder: (context, snapshot) => (snapshot.hasData)
+                ? MainPage(snapshot.data.uid)
+                : LoginSignUpPage()));
+  }
+}
+
+class MainPage extends StatelessWidget {
+  final String uid;
+
+  MainPage(this.uid) {
+    listener();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return GridList(uid: this.uid);
+  }
+
+  void uploadImage(String fileName, File uploadFile) {
+    var storageRef = FirebaseStorage.instance
+        .ref()
+        .child(uid)
+        .child("Uncategorized")
+        .child(fileName);
+    storageRef.getMetadata().then(print).catchError((data) {
+      storageRef.putFile(uploadFile);
+    });
+  }
+
+  void readImage(String filePath) {
+    File imageFile = new File(filePath);
+    Img.Image image = Img.decodeImage(imageFile.readAsBytesSync());
+    String fileName =
+        "${p.basenameWithoutExtension(filePath)}-${image.width.toString()}x${image.height.toString()}${p.extension(filePath)}";
+    uploadImage(fileName, imageFile);
+  }
+
+  void listener() async {
+    //"/storage/emulated/0/Pictures/Screenshots"
+    Directory externalDir = await getExternalStorageDirectory();
+    var watcher = DirectoryWatcher(
+        p.absolute(externalDir.path + "/Pictures/Screenshots"));
+    watcher.events.listen((event) {
+      if (event.type.toString() == "add") {
+        readImage(event.path.toString());
+      }
+    });
   }
 }

instarip/pubspec.yaml

@@ -15,17 +15,23 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  flutter_staggered_grid_view:
   photo_view: ^0.1.3
+
   firebase_core: ^0.3.0
   cloud_firestore: ^0.9.0
   google_sign_in: ^4.0.0
   firebase_auth: ^0.8.0+1
   firebase_storage: ^2.0.0
+
   rxdart: ^0.20.0
+
   cached_network_image: ^0.5.1
   share: ^0.6.0
 
+  path_provider: ^0.4.0
+  watcher: ^0.9.7+10
+  image: ^2.0.6
+
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^0.1.2