Android事件分发源码分析viewgroup事件传递机制的相关内容

文章 2022-02-03 来自：开发者社区

【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制七 )(五）

五、View 事件分发相关源码public class View implements Drawable.Callback, KeyEvent.Callback, AccessibilityEventSource { /** * Pass the touch screen motion event down to the target view, or this...

文章 2022-02-03 来自：开发者社区

【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制七 )(三）

四、ViewGroup 事件分发相关源码@UiThread public abstract class ViewGroup extends View implements ViewParent, ViewManager { // First touch target in the linked list of touch targets. private TouchTarget ...

文章 2022-02-03 来自：开发者社区

【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制七 )(二）

二、ViewGroup | dispatchTransformedTouchEvent 完整流程分析如果事件被拦截 , 或者没有被消费掉 , 则不会对 mFirstTouchTarget 进行初始化 , mFirstTouchTarget 为空 ;ViewGroup | dispatchTransformedTouchEvent 方法中 ,传入的子组件为空 , 表示事件被拦截了 , 或消费不成功....

文章 2022-02-03 来自：开发者社区

【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制七 )(一）

文章目录Android 事件分发系列文章目录总结一、ViewGroup | dispatchTouchEvent 完整流程分析二、ViewGroup | dispatchTransformedTouchEvent 完整流程分析三、View | dispatchTouchEvent 完整流程分析四、ViewGroup 事件分发相关源码五、View 事件分发相关源码总结事件分发主要是解决事件冲....

文章 2022-02-03 来自：开发者社区

【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制六 )（四）

文章 2022-02-03 来自：开发者社区

【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制六 )（三）

三、ViewGroup | dispatchTouchEvent 方法返回在【Android 事件分发】事件分发源码分析 ( Activity 中各层级的事件传递 | Activity -＞ PhoneWindow -＞ DecorView -＞ ViewGroup ) 博客中分析了从 Activity -＞ PhoneWindow -＞ DecorView -＞ ViewGroup 的调用链....

文章 2022-02-03 来自：开发者社区

【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制六 )（二）

二、完整的触摸事件处理机制完整触摸事件 :一个完整的触摸动作 , 由 1 11 次按下触摸事件 , 若干次移动触摸事件 , 1 11 次抬起触摸事件组成 ,1 11 个触摸动作只有 1 11 次按下操作 , 并且是整个触摸动作的起始触摸事件 ;一个完整的动作 , 只有第一次按下 , 才执行子组件的排序 , 遍历 , 事件分发等操作 ; 第一次按下后 , 手指按着移动 , 属于第2....

文章 2022-02-03 来自：开发者社区

【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制六 )（一）

文章目录Android 事件分发系列文章目录一、按下触摸事件记录二、完整的触摸事件处理机制三、ViewGroup | dispatchTouchEvent 方法返回四、ViewGroup 事件分发相关源码五、View 事件分发相关源码一、按下触摸事件记录在上一篇博客【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制五 ) 中 , 着重分析了 ViewGrou....

文章 2022-02-03 来自：开发者社区

【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制五 )（四）

六、View 事件分发相关源码public class View implements Drawable.Callback, KeyEvent.Callback, AccessibilityEventSource { /** * Pass the touch screen motion event down to the target view, or this...

文章 2022-02-03 来自：开发者社区

【Android 事件分发】事件分发源码分析 ( ViewGroup 事件传递机制五 )（二）

四、触摸事件被拦截的调用链分析如果上述事件分发方法 dispatchTransformedTouchEvent 返回 true , 就会创建 newTouchTarget 值 , 该值不会为空 , 同时 mFirstTouchTarget 不为空 ;如果上述事件分发方法 dispatchTransformedTouchEvent 返回 false , 此时 newTouchTarget 值 , ....

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