Migrate to Null Safety Flutter V2 (#205)

* platform interface upgrade

* pre-pigeon

* convert pigeon

* Fix snapshot issue

* Pr prep

* PR comments

* Pr comments

* Update flutter_vlc_player/lib/src/vlc_player_controller.dart

Co-authored-by: Yuri Prykhodko <[email protected]>

Co-authored-by: Yuri Prykhodko <[email protected]>

Author: mitchross

flutter_vlc_player/CHANGELOG.md

@@ -1,3 +1,6 @@
+## 5.0.6
+* Support Flutter V2 Null Safety
+Credits to Mitch Ross (https://github.com/mitchross)
 ## 5.0.5
 * Added Vlc Subtitle Styling. 
 * Split ios swift code into multiple files for better readability.

flutter_vlc_player/android/build.gradle

@@ -39,7 +39,7 @@ android {
 
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
-    implementation 'org.videolan.android:libvlc-all:3.3.2'
+    implementation 'org.videolan.android:libvlc-all:3.3.14'
     implementation 'androidx.appcompat:appcompat:1.2.0'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'androidx.annotation:annotation:1.1.0'

flutter_vlc_player/android/src/main/java/software/solid/fluttervlcplayer/FlutterVlcPlayer.java

@@ -624,7 +624,7 @@ String getSnapshot() {
         Bitmap bitmap = textureView.getBitmap();
         ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
         bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
-        return Base64.encodeToString(outputStream.toByteArray(), Base64.DEFAULT);
+        return Base64.encodeToString(outputStream.toByteArray(), Base64.NO_WRAP);
     }
 
     private void log(String message) {

flutter_vlc_player/android/src/main/java/software/solid/fluttervlcplayer/Messages.java

@@ -8,12 +8,12 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  path_provider: ^1.6.27
+  path_provider: ^2.0.1
 
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^0.1.3
+  cupertino_icons: ^1.0.2
 
 dev_dependencies:
   flutter_test:

flutter_vlc_player/example/pubspec.yaml

@@ -1,4 +1,4 @@
-// Autogenerated from Pigeon (v0.1.17), do not edit directly.
+// Autogenerated from Pigeon (v0.2.0-nullsafety.0), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 #import <Foundation/Foundation.h>
 @protocol FlutterBinaryMessenger;

flutter_vlc_player/ios/Classes/messages.h

@@ -6,19 +6,19 @@ import 'vlc_player_platform.dart';
 class VlcPlayer extends StatefulWidget {
   final VlcPlayerController controller;
   final double aspectRatio;
-  final Widget placeholder;
+  final Widget? placeholder;
 
   VlcPlayer({
-    Key key,
+    Key? key,
 
     /// The [VlcPlayerController] responsible for the video being rendered in
     /// this widget.
-    @required this.controller,
+    required this.controller,
 
     /// The aspect ratio used to display the video.
     /// This MUST be provided, however it could simply be (parentWidth / parentHeight) - where parentWidth and
     /// parentHeight are the width and height of the parent perhaps as defined by a LayoutBuilder.
-    @required this.aspectRatio,
+    required this.aspectRatio,
 
     /// Before the platform view has initialized, this placeholder will be rendered instead of the video player.
     /// This can simply be a [CircularProgressIndicator] (see the example.)
@@ -47,9 +47,9 @@ class _VlcPlayerState extends State<VlcPlayer>
     };
   }
 
-  VoidCallback _listener;
+  late VoidCallback _listener;
 
-  bool _isInitialized;
+  bool _isInitialized = false;
 
   @override
   void initState() {
@@ -88,7 +88,7 @@ class _VlcPlayerState extends State<VlcPlayer>
             child: widget.placeholder ?? Container(),
           ),
           Offstage(
-            offstage: !_isInitialized,
+            offstage: _isInitialized,
             child: vlcPlayerPlatform
                 .buildView(widget.controller.onPlatformViewCreated),
           ),

flutter_vlc_player/ios/Classes/messages.m

@@ -9,7 +9,7 @@ class VlcAppLifeCycleObserver extends Object with WidgetsBindingObserver {
   final VlcPlayerController _controller;
 
   void initialize() {
-    WidgetsBinding.instance.addObserver(this);
+    WidgetsBinding.instance!.addObserver(this);
   }
 
   @override
@@ -29,6 +29,6 @@ class VlcAppLifeCycleObserver extends Object with WidgetsBindingObserver {
   }
 
   void dispose() {
-    WidgetsBinding.instance.removeObserver(this);
+    WidgetsBinding.instance!.removeObserver(this);
   }
 }