public void onDragMove(ScrollUpdateNotification notification)
{
if (this.widget._isRefreshing || this.widget._isComplete)
{
return;
}
if (this.widget.autoLoad)
{
if (this.widget.up &&
notification.metrics.extentBefore() <= this.widget.triggerDistance)
{
this.widget.mode = RefreshStatus.refreshing;
}
if (!this.widget.up &&
notification.metrics.extentAfter() <= this.widget.triggerDistance)
{
this.widget.mode = RefreshStatus.refreshing;
}
}
}
bool _handleScrollMoving(ScrollUpdateNotification notification)
{
if (this._measure(notification) != -1.0)
{
this.offsetLis.value = this._measure(notification);
}
GestureProcessor topWrap = this._headerKey.currentState as GestureProcessor;
GestureProcessor bottomWrap = this._footerKey.currentState as GestureProcessor;
if (this.widget.enablePullUp)
{
bottomWrap.onDragMove(notification);
}
if (this.widget.enablePullDown)
{
topWrap.onDragMove(notification);
}
return(false);
}
public void onDragMove(ScrollUpdateNotification notification)
{
if (!this.widget._isScrollToOutSide(notification))
{
return;
}
if (this.widget._isComplete || this.widget._isRefreshing)
{
return;
}
var offset = this._measure(notification);
if (offset >= 1.0)
{
this.widget.mode = RefreshStatus.canRefresh;
}
else
{
this.widget.mode = RefreshStatus.idle;
}
}
