protected void onScrollChanged(int i, int j, int k, int l) {
super.onScrollChanged(i, j, k, l);
if (mTrackedChild == null) {
if (getChildCount() > 0) {
mTrackedChild = getChildInTheMiddle();
mTrackedChildPrevTop = mTrackedChild.getTop();
mTrackedChildPrevPosition = getPositionForView(mTrackedChild);
}
return;
}
if (mTrackedChild.getParent() == this
&& getPositionForView(mTrackedChild) == mTrackedChildPrevPosition) {
i = 1;
} else {
i = 0;
}
if (i != 0) {
i = mTrackedChild.getTop();
if (mScrollDeltaListener != null) {
j = mTrackedChildPrevTop;
mScrollDeltaListener.onScroll(i - j);
}
mTrackedChildPrevTop = i;
return;
} else {
mTrackedChild = null;
return;
}
}
public void dispatchDraw(Canvas canvas) {
super.dispatchDraw(canvas);
if (mPinnedHeaderIsVisible
&& mPinnedHeaderView != null
&& !isMode(2)
&& mPinnedHeaderOffset > -mPinnedHeaderHeight) {
canvas.save();
canvas.clipRect(
0,
mPinnedHeaderOffset + mNavBottom,
getWidth(),
mPinnedHeaderHeight + mPinnedHeaderOffset + mNavBottom);
canvas.translate(0.0F, mPinnedHeaderOffset + mNavBottom);
mPinnedHeaderView.draw(canvas);
canvas.restore();
}
}
public void setAdapter(ListAdapter listadapter) {
super.setAdapter(listadapter);
if (listadapter instanceof PinnedHeaderAdapter) {
setPinnedHeaderAdapter((PinnedHeaderAdapter) listadapter);
}
}
public void onMeasure(int i, int j) {
super.onMeasure(i, j);
measureHeader(mPinnedHeaderView);
}
private void init() {
super.setOnScrollListener(this);
}