public static boolean canChildScrollUp(View view) {
if (android.os.Build.VERSION.SDK_INT < 14) {
if (view instanceof AbsListView) {
final AbsListView absListView = (AbsListView) view;
return absListView.getChildCount() > 0
&& (absListView.getFirstVisiblePosition() > 0
|| absListView.getChildAt(0).getTop() < absListView.getPaddingTop());
} else {
return view.getScrollY() > 0;
}
} else {
return view.canScrollVertically(-1);
}
}
private boolean canScrollUp(View view, float x, float y) {
if (view instanceof ViewGroup) {
ViewGroup vg = (ViewGroup) view;
for (int i = 0; i < vg.getChildCount(); i++) {
View child = vg.getChildAt(i);
int childLeft = child.getLeft() - view.getScrollX();
int childTop = child.getTop() - view.getScrollY();
int childRight = child.getRight() - view.getScrollX();
int childBottom = child.getBottom() - view.getScrollY();
boolean intersects = x > childLeft && x < childRight && y > childTop && y < childBottom;
if (intersects && canScrollUp(child, x - childLeft, y - childTop)) {
return true;
}
}
}
return view.canScrollVertically(-1);
}
@Override
public boolean canChildScrollUp() {
return mScrollableChild.canScrollVertically(-1 /* up direction */);
}
public static boolean canScrollVertically(View paramView, int paramInt) {
return paramView.canScrollVertically(paramInt);
}
public static boolean canScrollVertically(View v, int direction) {
return v.canScrollVertically(direction);
}
