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【Android 事件分发】ItemTouchHelper 简介 ( 拖动/滑动事件 | ItemTouchHelper.Callback 回调 )（三）

三、完整代码实现1、主界面package kim.hsl.recyclerview; import android.graphics.Color; import android.os.Bundle; import android.view.LayoutInflater; import android...

【Android 事件分发】ItemTouchHelper 简介 ( 拖动/滑动事件 | ItemTouchHelper.Callback 回调 )（二）

二、ItemTouchHelper.Callback 自定义实现其中的 ItemTouchHelper.Callback 一般都需要开发者自定义子类实现 ;1、设置移动标志 ( 拖动/滑动 )重写 ItemTouchHelper.Callback 的 getMovementFlags 方法 ;该方法...

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【Android 事件分发】ItemTouchHelper 简介 ( 拖动/滑动事件 | ItemTouchHelper.Callback 回调 )（一）

文章目录Android 事件分发系列文章目录一、ItemTouchHandler 简介二、ItemTouchHelper.Callback 自定义实现1、设置移动标志 ( 拖动/滑动 )三、完整代码实现1、主界面2、ItemTouchHelper.Callback 回调类一、ItemTouchHa...

Android进阶知识：事件分发与滑动冲突（二）

接着看代码块3，在这段很长的代码里，首先一个if中判断了该事件是否满足没有被拦截和被取消，之后第二个if判断了事件类型是否为DOWN，满足了没有被拦截和取消的DOWN事件，接下来ViewGroup才会循环其子View找到点击事件在其内部并且能够接受该事件的子View，再通过调用dispatchTra...

Android进阶知识：事件分发与滑动冲突（一）

1、前言 Android学习一段时间，需求做多了必然会遇到滑动冲突问题，比如在一个ScrollView中要嵌套一个地图View，这时候触摸移动地图或者放大缩小地图就会变得不太准确甚至没有反应，这就是遇到了滑动冲突，ScrollView中上下滑动与地图的触摸手势发生冲突。想要解决滑动冲突就不得不提到A...

Android自定义View探索(三)—事件分发机制与滑动冲突处理

View的事件分发机制，其实就是对MotionEvent事件的分发机制，即当一个MotionEvent产生了以后，系统需要把这个事件传递给一个具体的View，这个传递的过程就是分发过程。一.View的事件分发机制整体流程： dispatchTouchEvent()—>onTouch()—&...

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