demo:optimize demo code

doric-js/lib/src/widget/flowlayout.d.ts

@@ -16,6 +16,9 @@ export interface IFlowLayout extends IView {
     columnCount?: number;
     columnSpace?: number;
     rowSpace?: number;
+    loadMore?: boolean;
+    onLoadMore?: () => void;
+    loadMoreView?: FlowLayoutItem;
 }
 export declare class FlowLayout extends Superview implements IFlowLayout {
     private cachedViews;

doric-js/lib/src/widget/list.d.ts

@@ -13,6 +13,9 @@ export interface IList extends IView {
     renderItem: (index: number) => ListItem;
     itemCount: number;
     batchCount?: number;
+    onLoadMore?: () => void;
+    loadMore?: boolean;
+    loadMoreView?: ListItem;
 }
 export declare class List extends Superview implements IList {
     private cachedViews;

doric-js/lib/src/widget/scroller.d.ts

@@ -1,7 +1,7 @@
 import { Superview, View, IView, NativeViewModel } from '../ui/view';
-export declare function scroller(content: View): Scroller;
+export declare function scroller(content: View, config?: IScroller): Scroller;
 export interface IScroller extends IView {
-    content: View;
+    content?: View;
 }
 export declare class Scroller extends Superview implements IScroller {
     content: View;

doric-js/lib/src/widget/scroller.js

@@ -15,9 +15,14 @@
  */
 import { Superview } from '../ui/view';
 import { layoutConfig } from '../util/layoutconfig';
-export function scroller(content) {
+export function scroller(content, config) {
     return (new Scroller).also(v => {
         v.layoutConfig = layoutConfig().fit();
+        if (config) {
+            for (let key in config) {
+                Reflect.set(v, key, Reflect.get(config, key, config), v);
+            }
+        }
         v.content = content;
     });
 }