scrollview

layout: post
title: “2019-05-20-ScrollView”
date: 2019-05-20 12:11:30 +0800

• 继承自FrameLayout,仅有一个子View

• ScrollView的滚动实现
  1) 点击的传递
  onInterceptTouchEvent
  onTouchEvent
  dispatchNestedScroll
  mVelocityTracker

2) 滚动内容的实现
onLayout
scrollTo(mScrollX, mScrollY);

示例:
https://github.com/shuhuaxie/nestScroll/blob/master/app/src/main/java/com/example/gs/testnestscroll/myview/CustomScrollView.java