Android事件分发机制-阿里云

[Android]View的事件分发机制（源码解析）

1.分发对象-MotionEvent事件类型有：1.ACTION_DOWN-----手指刚接触屏幕2.ACTION_MOVE------手指在屏幕上移动3.ACTION_UP------手指从屏幕上松开的一瞬间4.ACTION_CANCEL-----事件被上层拦截时触发MotionEvent主要的方...

Android View 事件分发机制，看这一篇就够了（二）

外部解决法从父View着手，重写onInterceptTouchEvent方法，在父View需要拦截的时候拦截，不要的时候返回false，为代码大概如下@Override public boolean onInterceptTouchEvent(MotionEvent ev) { final fl...

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Android View 事件分发机制，看这一篇就够了（一）

在 Android 开发当中，View 的事件分发机制是一块很重要的知识。不仅在开发当中经常需要用到，面试的时候也经常被问到。如果你在面试的时候，能把这块讲清楚，对于校招生或者实习生来说，算是一块不错的加分项。对于工作几年的我们来说，这是必须掌握的，讲不明白，那你回去等通知吧ÿ...

Android事件分发机制

在android开发中会经常遇到滑动冲突（比如ScrollView或是SliddingMenu与ListView的嵌套）的问题，需要我们深入的了解android事件响应机制才能解决，事件响应机制已经是android开发者必不可少的知识。面试找工作的时候也是面试官经常会问的一个问题。1....

“framework必会”系列：Android Input系统（二）事件分发机制

本文正在参加「金石计划 . 瓜分6万现金大奖」 Hi，我是小余。本文已收录到 GitHub · Androider-Planet 中。这里有 Android 进阶成长知识体系，关注公众号 [小余的自习室] ，在成功的路上不迷路！前言关于为什么会有这“framework必会系列”文章？对，卷王太多了...

Android 事件分发机制详解（下）

2.3 View事件分发机制从上面ViewGroup事件分发机制知道，View事件分发机制从dispatchTouchEvent()开始源码分析/** * 源码分析：View.dispatchTouchEvent（） */ public boolean dispatchTouchEvent(Moti...

Android 事件分发机制详解（上）

前言Android事件分发机制是Android开发者必须了解的基础。目录一. 基础认知1.1 事件分发的由来安卓的View是树形结构的，View可能会重叠在一起，当我们点击的地方有多个View都可以响应的时候，这个点击事件应该给谁呢？为了解决这一个问题，就有了事件分发机制。1.2 事件分发的 "事件...

牛逼！终于有人能把Android事件分发机制讲明白了

在Android开发中，事件分发机制是一块Android比较重要的知识体系，了解并熟悉整套的分发机制有助于更好的分析各种点击滑动失效问题，更好去扩展控件的事件功能和开发自定义控件，同时事件分发机制也是Android面试必问考点之一，如果你能把下面的一些事件分发图当场画出来肯定加分不少。废话不多说，总...

Android事件分发机制之ACTION_DOWN

前言Android的事件分发机制也是老生常谈了，这篇文章并不是笼统的介绍这个机制，而是针对ACTION_DOWN这个事件探讨相关的细节。dispatchTouchEvent说到Android事件分发，一定绕不开dispatchTouchEvent函数，View和ViewGroup的该函数有很大的不同...

事件分发四部曲之一《深度遍历讲解Android事件分发机制》

Android事件分发是一个老生常谈的知识点。日常开发和求职过程中，都会碰到Android事件分发的问题。Android的控件分为两类，ViewGoup和View。ViewGroup是控件的容器，可以包含多个子控件。View是控件的最小单位，它不能包裹其它的View。Android的ViewGrou...

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