fix something

Author: CarGuo

lib/bloc/base/base_bloc.dart

@@ -90,8 +90,10 @@ abstract class BlocListBase extends BlocBase {
   doNext(res) async {
     if (res.next != null) {
       var resNext = await res.next;
-      changeLoadMoreStatus(getLoadMoreStatus(resNext));
-      refreshData(resNext);
+      if(resNext != null && resNext.result) {
+        changeLoadMoreStatus(getLoadMoreStatus(resNext));
+        refreshData(resNext);
+      }
     }
   }
 

lib/main.dart

@@ -18,8 +18,13 @@ import 'package:redux/redux.dart';
 import 'package:gsy_github_app_flutter/common/net/code.dart';
 
 void main() {
-  runApp(new FlutterReduxApp());
-  PaintingBinding.instance.imageCache.maximumSize = 100;
+  runZoned(() {
+    runApp(FlutterReduxApp());
+    PaintingBinding.instance.imageCache.maximumSize = 100;
+  }, onError: (Object obj, StackTrace stack) {
+    print(obj);
+    print(stack);
+  });
 }
 
 class FlutterReduxApp extends StatelessWidget {

lib/widget/gsy_pull_new_load_widget.dart

@@ -192,13 +192,17 @@ class GSYPullLoadWidgetControl extends ChangeNotifier {
 
   set dataList(List value) {
     _dataList.clear();
-    _dataList.addAll(value);
-    notifyListeners();
+    if(value != null) {
+      _dataList.addAll(value);
+      notifyListeners();
+    }
   }
 
   addList(List value) {
-    _dataList.addAll(value);
-    notifyListeners();
+    if(value != null) {
+      _dataList.addAll(value);
+      notifyListeners();
+    }
   }
 
   ///是否需要加载更多

lib/widget/gsy_user_icon_widget.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:gsy_github_app_flutter/common/style/gsy_style.dart';
+import 'package:gsy_github_app_flutter/widget/network_cache_image.dart';
 
 /**
  * 头像Icon
@@ -23,11 +24,10 @@ class GSYUserIconWidget extends StatelessWidget {
         padding: padding ?? const EdgeInsets.only(top: 4.0, right: 5.0, left: 5.0),
         constraints: const BoxConstraints(minWidth: 0.0, minHeight: 0.0),
         child: new ClipOval(
-          child: new FadeInImage.assetNetwork(
-            placeholder: GSYICons.DEFAULT_USER_ICON,
+          child: Image(
+            image: NetworkCacheImage(image),
             //预览图
             fit: BoxFit.fitWidth,
-            image: image,
             width: width,
             height: height,
           ),

lib/widget/network_cache_image.dart

@@ -0,0 +1,98 @@
+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'dart:ui' as ui show Codec;
+
+import 'package:flutter_cache_manager/flutter_cache_manager.dart';
+
+/**
+ * Created by guoshuyu
+ * on 2019/4/13.
+ */
+class NetworkCacheImage extends ImageProvider<NetworkCacheImage> {
+  /// Creates an object that fetches the image at the given URL.
+  ///
+  /// The arguments must not be null.
+  const NetworkCacheImage(this.url, { this.scale = 1.0, this.headers })
+      : assert(url != null),
+        assert(scale != null);
+
+  /// The URL from which the image will be fetched.
+  final String url;
+
+  /// The scale to place in the [ImageInfo] object of the image.
+  final double scale;
+
+  /// The HTTP headers that will be used with [HttpClient.get] to fetch image from network.
+  final Map<String, String> headers;
+
+  @override
+  Future<NetworkCacheImage> obtainKey(ImageConfiguration configuration) {
+    return SynchronousFuture<NetworkCacheImage>(this);
+  }
+
+  @override
+  ImageStreamCompleter load(NetworkCacheImage key) {
+    return MultiFrameImageStreamCompleter(
+      codec: _loadAsync(key),
+      scale: key.scale,
+      informationCollector: (StringBuffer information) {
+        information.writeln('Image provider: $this');
+        information.write('Image key: $key');
+      },
+    );
+  }
+
+  static final HttpClient _httpClient = HttpClient();
+
+  Future<ui.Codec> _loadAsync(NetworkCacheImage key) async {
+    assert(key == this);
+
+    /// add this start
+    /// flutter_cache_manager DefaultCacheManager
+    final fileInfo = await DefaultCacheManager().getFileFromCache(key.url);
+    if(fileInfo != null && fileInfo.file != null) {
+      final Uint8List cacheBytes = await fileInfo.file.readAsBytes();
+      if (cacheBytes != null) {
+        return PaintingBinding.instance.instantiateImageCodec(cacheBytes);
+      }
+    }
+    /// add this end
+
+    final Uri resolved = Uri.base.resolve(key.url);
+    final HttpClientRequest request = await _httpClient.getUrl(resolved);
+    headers?.forEach((String name, String value) {
+      request.headers.add(name, value);
+    });
+    final HttpClientResponse response = await request.close();
+    if (response.statusCode != HttpStatus.ok)
+      throw Exception('HTTP request failed, statusCode: ${response?.statusCode}, $resolved');
+
+    final Uint8List bytes = await consolidateHttpClientResponseBytes(response);
+    if (bytes.lengthInBytes == 0)
+      throw Exception('NetworkCacheImage is an empty file: $resolved');
+
+    /// add this start
+    await DefaultCacheManager().putFile(key.url, bytes);
+    /// add this edn
+
+    return PaintingBinding.instance.instantiateImageCodec(bytes);
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    if (other.runtimeType != runtimeType)
+      return false;
+    final NetworkCacheImage typedOther = other;
+    return url == typedOther.url
+        && scale == typedOther.scale;
+  }
+
+  @override
+  int get hashCode => hashValues(url, scale);
+
+  @override
+  String toString() => '$runtimeType("$url", scale: $scale)';
+}

pubspec.lock

@@ -318,7 +318,7 @@ packages:
       name: intl
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.15.7"
+    version: "0.15.8"
   io:
     dependency: transitive
     description: