factor:布局颜色重构

lib/pages/timeline_page.dart

@@ -28,7 +28,7 @@ class TimelinePageState extends State<TimelinePage> {
 
     return Timeline.tileBuilder(
       theme: TimelineThemeData(nodePosition: 0, indicatorPosition: 0),
-      padding: EdgeInsets.all(6),
+      padding: EdgeInsets.all(0),
       builder: TimelineTileBuilder.connected(
         itemCount: provider.blogList.length,
         connectorBuilder:
@@ -39,9 +39,12 @@ class TimelinePageState extends State<TimelinePage> {
         },
         contentsBuilder: (context, index) {
           final blog = provider.blogList[index];
-          return InkWell(
-            onTap: () => navigatorToBlogDetail(context, blog.id),
-            child: buildBlogListItem(context, blog, index + 1),
+          return Padding(
+            padding: const EdgeInsets.symmetric(vertical: 4.0),
+            child: InkWell(
+              onTap: () => navigatorToBlogDetail(context, blog.id),
+              child: buildBlogListItem(context, blog, index + 1),
+            ),
           );
         },
       ),