怎么做一个无限的jscrollpane? [英] How do make an infinite jscrollpane?
问题描述
之前我已经实现了拖动滚动,但是创建无限滚动窗格的最佳方法是什么?当然不会有任何滚动条,我会实现拖动滚动。
I've implemented drag scroll before, but what's the best way to go about creating an infinite scroll pane? Of course there won't be any scrollbars and I will implement drag scroll.
我要做的是在无限的表面上实现动态加载。
What I am trying to do is implement dynamic loading on an infinite surface.
编辑
当然它实际上并不是无限的。我问的是如何伪造它。
Of course it wouldn't actually be infinite. I am asking how to fake it.
推荐答案
你可以做以下事情:
AdjustmentClass adj = new AdjustmentClass();
scrollPane.getHorizontalScrollBar().addAdjustmentListener(adj);
scrollPane.getVerticalScrollBar().addAdjustmentListener(adj);
在您的AdjustmentClass中执行以下操作:
And in your AdjustmentClass do the following:
public class AdjustmentClass implements AdjustmentListener {
public void adjustmentValueChanged(AdjustmentEvent adjustmentEvent) {
// Implement your custom code here
}
}
要获得活动的方向,请执行以下操作:
To get orientation of the event do:
adjustmentEvent.getAdjustable().getOrientation();
您可以在以下位置找到方向常量:
You find the orientation constants in:
AdjustmentEvent.UNIT_INCREMENT
AdjustmentEvent.BLOCK_INCREMENT
等。等等。
要检查用户是否正在拖动滚动条旋钮,请执行以下操作:
To check if user is dragging the scroll-bar knob do:
adjustmentEvent.getValueIsAdjusting()
我还有更多信息,请查看API获取更多信息如果你需要的话。
There are i few more, check the API for more info if you need.
快乐的编码!
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