如何保持一个触摸事件继续把重点放在小部件它是在开始的？ [英] How do I keep a touch event keep its focus on the widget it was started in?

问题描述

让我们说我有一个ListView，并在它一排是我的自定义视图。自定义视图中的用户触摸 - >自定义视图得到处理此触摸事件。用户将继续是自定义视图这里面触摸序列 - >自定义视图获取到处理这些事件太

Let's say I have a ListView, and one row in it is a custom View of mine. The user touches inside the custom view -> custom View gets to handle this touch event. User continues this touch sequence inside the are of the custom View -> custom View gets to handle those events too.

问题：当用户拖动他/她的手指自定义视图（拖动启动内部），自定义视图losts触摸事件的区域之外。但我需要这些事件也一样，我怎么能做到这一点？

Problem: When the user drags his/her finger outside the area of the custom View (the drag started inside), the custom View losts the touch events. But I need those events too, how can I achieve this?

我知道，这是可以做到：如果你把包含LisView里面一堆图像的画廊，我开始拖动图库左右，并拖我的手指画廊的区域之外，而这样做（向上移动/向下太多了），我仍然控制着画廊滚动，而不是ListView控件。

I know that this can be done: if you put a Gallery containing a bunch of images inside a LisView, and I start to drag the Gallery left-right, and drag my finger outside the area of the Gallery while doing so (moving up/downwards too much), I still control the Gallery scrolling, not the ListView.

我希望，我很清楚，没有任何人有这个问题的一些建议吗？

I hope that I was clear enough, does anyone have some tips on this problem?

推荐答案

据的这个帖子由戴安娜Hackborn 的，如果你返回true在视图中的的onTouchEvent（），以下事件自动发送一个关闭事件这一观点。

According to this post by Dianne Hackborn, if you return true to a down event in a view's onTouchEvent(), following events are sent automatically to that view.

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