防止ImageView在滚动时接收触摸事件 [英] Prevent ImageView from receiving touch events when scrolling

问题描述

我正在制作一个很多 ImageView 的应用程序，我需要在其中一些附加一个触摸监听器。在这样做的时候，我遇到了一个问题。如果指针被按住在附有触摸监听器的 ImageView 的位置，并且即将产生滚动事件，则查看 s和w $ c中的 ScrollView ，其中事件实际发生，事件应该属于w / c。 屏幕以快速的速度滚动，然后返回第一个指针被触摸的地方，因此这意味着它是一种不必要的行为。

I'm making an app with lots of ImageViews and I needed to attach a touch listener in some of them. While doing this, I encountered a problem. If the pointer was held down at the location where the ImageView with touch listeners attached to it and was about to produce a scrolling event, there seems a fighting scene between the Views and the ScrollView in w/c where the event was actually occured and in w/c the event is supposed to belong. The screen scrolls in a fast rate then return where the first pointer was touched down, so it means it is an unwanted behavior.

设置 onTouchListener 在 ImageView 中使滚动不安和不需要，如何防止 ImageView 在滚动时接收到触摸事件？

Setting an onTouchListener in the ImageView makes the scrolling uneasy and unwanted, how do I prevent ImageView from receiving touch events when scrolling?

布局： act_map_view.xml

<?xml version="1.0" encoding="utf-8"?>

<com.nkraft.mobiletomblocator.CustomVScroll
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/vScroll"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scrollbars="none" >

    <com.nkraft.mobiletomblocator.CustomHScroll 
        android:id="@+id/hScroll"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:scrollbars="none" >

            <com.nkraft.mobiletomblocator.CustomGridLayout
                android:id="@+id/map_grid"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" >

            </com.nkraft.mobiletomblocator.CustomGridLayout>

    </com.nkraft.mobiletomblocator.CustomHScroll>

</com.nkraft.mobiletomblocator.CustomVScroll>

注意：

• 在运行时， GridLayout 填入 ImageView 。


• 我定制了我的水平和垂直 ScrollView ，以便我可以同时在两个方向滚动，即对齐滚动

• The GridLayout is populated with ImageViews at runtime.
• I customized my horizontal and vertical ScrollView so that I can scroll in both directions concurrently i.e diagonal scrolling

推荐答案

从我提到的笔记中，我想到了我目前面临的问题的线索。我认为这个问题在标准android的滚动条被实现之前就已经被考虑过了。我发生的主要原因是我扩展了滚动条的类，并完全替代了它的默认行为。所以为了实现我想要的（带滚动条的滚动条）我遵循这个 post ，并用这个 TwoDScrollView 替换我的垂直和水平scrollview，同样感谢发布指示我。

From the notes I've mention, I figured a clue from the problem I'm currently facing. I think this issue had been thought before the standard android's scrollbar was implemented. The main reason this occurs to me is that I extended the class of the scrollbars and totally replacing the default behavior of it. So for me to achieve what I want (the scrollbar with diagonal scrolling) I follow this post and replace both my vertical and horizontal scrollview with this TwoDScrollView, also thanks for this post directing me to it.

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