二维滚动......需要反馈的建议 [英] Two dimensional scrolling... a suggestion that needs feedback
问题描述
虽然花费的时间量丰富google搜索一个相对简单的解决我的问题,我发现这个作为二维滚动的解决方案。我有AA horizontalscrollview嵌套在一个滚动视图。我在几个方面拨弄着这一点,是不成功的在做任何事情的功能。有没有人对如何使这样的工作理念什么想法?
While spending a copious amount of time googling for a relatively simple solution to my problem I found this as a solution for two-dimensional scrolling. I have a a horizontalscrollview nested in a scrollview. I fiddled with this in a few ways and was unsuccessful in making anything functional. Does anyone have any ideas on how to make a concept like this work?
Scrollview scrollY = (ScrollView)findViewById(R.id.scrollY);
LinearLayout scrollYChild = (LinearLayout)findViewById(R.id.scrollYChild);
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
scrollYChild.dispatchTouchEvent(event);
scrollY.onTouchEvent(event);
return true;
}
我还发现这一点: HTTP://blog.gorges .US / 2010/06 / Android的二维,滚动型/ 但我不明白的一切是如何实现这样的长片code正确的。
I have also found this: http://blog.gorges.us/2010/06/android-two-dimensional-scrollview/ but I'm don't understand at all how to implement such a long piece of code properly.
这是没有多大意义,我认为二维滚动是一个web视图固有的,但在其他地方根本不存在......任何及所有的帮助是AP preciated。
It doesn't make much sense to me that two-dimensional scrolling is inherent in a webview but nonexistent elsewhere... Any and all help is appreciated.
编辑:为什么说当在画廊的图像放大了这项工作。当然必须有办法在这里实现了同样的功能。
How exactly does this work when zoomed in on an image in the gallery. Surely there has to be a way to implement that same functionality here.
推荐答案
林不知道你已经发布了博客,这是我的解决方案:
Im not sure about the blog you have posted, this was my solution:
/**
* This class disables Y-motion on touch event.
* It should only be used as parent class of HorizontalScrollView
*/
public class ParentScrollView extends ScrollView {
private GestureDetector mGestureDetector;
View.OnTouchListener mGestureListener;
@SuppressWarnings("deprecation")
public ParentScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
mGestureDetector = new GestureDetector(new YScrollDetector());
setFadingEdgeLength(0);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if( mGestureDetector.onTouchEvent(ev)&super.onInterceptTouchEvent(ev)){
return true;
}else{
return false;
}
}
// Return false if we're scrolling in the x direction
class YScrollDetector extends SimpleOnGestureListener {
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
if(Math.abs(distanceY) > Math.abs(distanceX)) {
return true;
}
return false;
}
}
}
XML:
<com.example.Views.ParentScrollView
android:layout_width="match_parent"
android:layout_height="match_parent" >
<HorizontalScrollView
android:id="@+id/tlDBtable"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</HorizontalScrollView>
</com.example.Views.ParentScrollView>
基本上只有卷轴veritcal将被禁用,因为您将使用一个新的自定义类的父滚动视图。然后你把HScrollview滚动视图中。该Parentscroll认为会通过触摸,即使它不是垂直于horiszontalscroll视图,这使得它的2D滚动效果。
Basically the parent scrollview which only scrolls veritcal will be disabled because you will use a new custom class. Then you put a HScrollview within the scroll view. The Parentscroll view will pass the touch even if its not vertical to the horiszontalscroll view which makes it 2D scrolling effect.
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