fix error(flutter 1.7.8+hotfix.3)

DavidYang1121 · web-flow · commit b39c4e5c1026 · 2019-07-11T17:31:56.000+08:00
diff --git a/lib/real_rich_text.dart b/lib/real_rich_text.dart
@@ -193,8 +193,8 @@ class ImageResolver {
 
     this._listener = listener;
     if (_imageStream.key != oldImageStream?.key) {
-      oldImageStream?.removeListener(_handleImageChanged);
-      _imageStream.addListener(_handleImageChanged);
+      oldImageStream?.removeListener(ImageStreamListener(_handleImageChanged));
+      _imageStream.addListener(ImageStreamListener(_handleImageChanged));
     }
   }
 
@@ -205,12 +205,12 @@ class ImageResolver {
 
   void addListening() {
     if (this._listener != null) {
-      _imageStream?.addListener(_handleImageChanged);
+      _imageStream?.addListener(ImageStreamListener(_handleImageChanged));
     }
   }
 
   void stopListening() {
-    _imageStream?.removeListener(_handleImageChanged);
+    _imageStream?.removeListener(ImageStreamListener(_handleImageChanged));
   }
 }
 
@@ -219,7 +219,7 @@ class ImageResolver {
 ///
 /// No more special purpose.
 class _RichTextWrapper extends RichText {
-  const _RichTextWrapper({
+   _RichTextWrapper({
     Key key,
     @required TextSpan text,
     TextAlign textAlign = TextAlign.start,

Original file line number	Diff line number	Diff line change
`@@ -193,8 +193,8 @@ class ImageResolver {`
`193`	`193`
`194`	`194`	`this._listener = listener;`
`195`	`195`	`if (_imageStream.key != oldImageStream?.key) {`
`196`		`- oldImageStream?.removeListener(_handleImageChanged);`
`197`		`- _imageStream.addListener(_handleImageChanged);`
	`196`	`+ oldImageStream?.removeListener(ImageStreamListener(_handleImageChanged));`
	`197`	`+ _imageStream.addListener(ImageStreamListener(_handleImageChanged));`
`198`	`198`	`}`
`199`	`199`	`}`
`200`	`200`
`@@ -205,12 +205,12 @@ class ImageResolver {`
`205`	`205`
`206`	`206`	`void addListening() {`
`207`	`207`	`if (this._listener != null) {`
`208`		`- _imageStream?.addListener(_handleImageChanged);`
	`208`	`+ _imageStream?.addListener(ImageStreamListener(_handleImageChanged));`
`209`	`209`	`}`
`210`	`210`	`}`
`211`	`211`
`212`	`212`	`void stopListening() {`
`213`		`- _imageStream?.removeListener(_handleImageChanged);`
	`213`	`+ _imageStream?.removeListener(ImageStreamListener(_handleImageChanged));`
`214`	`214`	`}`
`215`	`215`	`}`
`216`	`216`
`@@ -219,7 +219,7 @@ class ImageResolver {`
`219`	`219`	`///`
`220`	`220`	`/// No more special purpose.`
`221`	`221`	`class _RichTextWrapper extends RichText {`
`222`		`- const _RichTextWrapper({`
	`222`	`+ _RichTextWrapper({`
`223`	`223`	`Key key,`
`224`	`224`	`@required TextSpan text,`
`225`	`225`	`TextAlign textAlign = TextAlign.start,`