@Override
public void computeScroll() {
if (mScroller.computeScrollOffset()) {
if (mScrollBack == SCROLL_BACK_HEADER) {
mHeader.setVisibleHeight(mScroller.getCurrY());
} else {
mFooterView.setBottomMargin(mScroller.getCurrY());
}
postInvalidate();
invokeOnScrolling();
}
super.computeScroll();
}
private void updateHeaderHeight(float delta) {
mHeader.setVisibleHeight((int) delta + mHeader.getVisibleHeight());
if (mEnablePullRefresh && !mPullRefreshing) {
// update the arrow image unrefreshing
if (mHeader.getVisibleHeight() > mHeaderHeight) {
mHeader.setState(XHeaderView.STATE_READY);
} else {
mHeader.setState(XHeaderView.STATE_NORMAL);
}
}
// scroll to top each time
setSelection(0);
}
/** Auto call back refresh. */
public void autoRefresh() {
mHeader.setVisibleHeight(mHeaderHeight);
if (mEnablePullRefresh && !mPullRefreshing) {
// update the arrow image not refreshing
if (mHeader.getVisibleHeight() > mHeaderHeight) {
mHeader.setState(XHeaderView.STATE_READY);
} else {
mHeader.setState(XHeaderView.STATE_NORMAL);
}
}
mPullRefreshing = true;
mHeader.setState(XHeaderView.STATE_REFRESHING);
refresh();
}
private void updateHeaderHeight(float delta) {
mHeader.setVisibleHeight((int) delta + mHeader.getVisibleHeight());
if (mEnablePullRefresh && !mPullRefreshing) {
// update the arrow image unrefreshing
if (mHeader.getVisibleHeight() > mHeaderHeight) {
mHeader.setState(XHeaderView.STATE_READY);
} else {
mHeader.setState(XHeaderView.STATE_NORMAL);
}
}
// scroll to top each time
post(
new Runnable() {
@Override
public void run() {
XScrollView.this.fullScroll(ScrollView.FOCUS_UP);
}
});
}