[flutter_image] Replace deprecated APIs (#6126)

Now that it's available on every supported version, switch to `loadImage` instead of the deprecated `loadBuffer`.

Fixes flutter/flutter#132856

Author: stuartmorgan-g

packages/flutter_image/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 4.1.11
+
+* Replaces deprecated loadBuffer API usage.
+
 ## 4.1.10
 
 * Fixes image asset link to use image within package.

packages/flutter_image/lib/network.dart

@@ -99,9 +99,9 @@ class NetworkImageWithRetry extends ImageProvider<NetworkImageWithRetry> {
   }
 
   @override
-  ImageStreamCompleter loadBuffer(
+  ImageStreamCompleter loadImage(
     NetworkImageWithRetry key,
-    DecoderBufferCallback decode,
+    ImageDecoderCallback decode,
   ) {
     return OneFrameImageStreamCompleter(_loadWithRetry(key, decode),
         informationCollector: () sync* {

packages/flutter_image/pubspec.yaml

@@ -3,7 +3,7 @@ description: >
   Image utilities for Flutter: improved network providers, effects, etc.
 repository: https://github.com/flutter/packages/tree/main/packages/flutter_image
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+flutter_image%22
-version: 4.1.10
+version: 4.1.11
 
 environment:
   sdk: ">=3.0.0 <4.0.0"

packages/flutter_image/test/network_test.dart

@@ -140,9 +140,9 @@ void assertThatImageLoadingFails(
   NetworkImageWithRetry subject,
   List<FlutterErrorDetails> errorLog,
 ) {
-  final ImageStreamCompleter completer = subject.loadBuffer(
+  final ImageStreamCompleter completer = subject.loadImage(
     subject,
-    PaintingBinding.instance.instantiateImageCodecFromBuffer,
+    PaintingBinding.instance.instantiateImageCodecWithSize,
   );
   completer.addListener(ImageStreamListener(
     (ImageInfo image, bool synchronousCall) {},
@@ -157,9 +157,9 @@ void assertThatImageLoadingFails(
 void assertThatImageLoadingSucceeds(
   NetworkImageWithRetry subject,
 ) {
-  final ImageStreamCompleter completer = subject.loadBuffer(
+  final ImageStreamCompleter completer = subject.loadImage(
     subject,
-    PaintingBinding.instance.instantiateImageCodecFromBuffer,
+    PaintingBinding.instance.instantiateImageCodecWithSize,
   );
   completer.addListener(ImageStreamListener(
     expectAsync2((ImageInfo image, bool synchronousCall) {