ListViewAutoScrollHelper
public class ListViewAutoScrollHelper
extends AutoScrollHelper
的实现 AutoScrollHelper
,知道如何通过滚动 ListView
。
摘要(Summary)
Public constructors
ListViewAutoScrollHelper
ListViewAutoScrollHelper (ListView target)
参数(Parameters) |
target |
ListView
|
公共方法(Public methods)
canTargetScrollHorizontally
boolean canTargetScrollHorizontally (int direction)
重写此方法以返回目标视图是否可以在某个方向上水平滚动。
参数(Parameters) |
direction |
int : Negative to check scrolling left, positive to check scrolling right. |
返回(Returns) |
boolean |
true if the target view is able to horizontally scroll in the specified direction. |
canTargetScrollVertically
boolean canTargetScrollVertically (int direction)
重写此方法以返回目标视图是否可以在某个方向上垂直滚动。
参数(Parameters) |
direction |
int : Negative to check scrolling up, positive to check scrolling down. |
返回(Returns) |
boolean |
true if the target view is able to vertically scroll in the specified direction. |
scrollTargetBy
void scrollTargetBy (int deltaX,
int deltaY)
重写此方法以按指定数量的像素滚动目标视图。
参数(Parameters) |
deltaX |
int : The number of pixels to scroll by horizontally. |
deltaY |
int : The number of pixels to scroll by vertically. |