!7335 modify onScrollBegin to onScrollFrameBegin

Merge pull request !7335 from yeyinglong/scroll

arkui/ace_ets_component_apilack/entry/src/main/ets/MainAbility/pages/list.ets

@@ -98,13 +98,13 @@ struct ListLanes {
           .alignListItem(ListItemAlign.Start)
           .border({ width: 3, color: Color.Red })
           .lanes({ minLength: 40, maxLength: 60 })
-          .onScrollBegin((dx: number, dy: number) => {
-            if ((this.listPosition == 0 && dy >= 0) || (this.listPosition == 2 && dy <= 0)) {
-              this.scroller.scrollBy(0, -dy)
-              return { dxRemain: dx, dyRemain: 0 }
+          .onScrollFrameBegin((offset: number, state: ScrollState) => {
+            if ((this.listPosition == 0 && offset >= 0) || (this.listPosition == 2 && offset <= 0)) {
+              this.scroller.scrollBy(0, -offset)
+              return { offsetRemain: 0 }
             }
             this.listPosition = 1;
-            return { dxRemain: dx, dyRemain: dy }
+            return { offsetRemain: offset }
 
             try {
               var backData = {

arkui/ace_ets_component_apilack/entry/src/main/ets/MainAbility/pages/scroll.ets

@@ -61,9 +61,9 @@ struct ScrollOnScrollBegin {
         }.width('100%')
       }
       .scrollable(ScrollDirection.Vertical)
-      .onScrollBegin((dx: number, dy: number) => {
-        console.info('dx=' + dx + ",dy=" + dy)
-        return { dxRemain: dx, dyRemain: dy }
+      .onScrollFrameBegin((offset: number, state: ScrollState) => {
+        console.info('offset=' + offset)
+        return { offsetRemain: offset }
       })
       .scrollBar(BarState.On)
       .scrollBarColor(Color.Gray)