Pushing the ActionBar to the next level

NotifyingScrollView.java

private boolean mIsOverScrollEnabled = true;

public void setOverScrollEnabled(boolean enabled) {
    mIsOverScrollEnabled = enabled;
}

public boolean isOverScrollEnabled() {
    return mIsOverScrollEnabled;
}

@Override
protected boolean overScrollBy(int deltaX, int deltaY, int scrollX, int scrollY, int scrollRangeX, int scrollRangeY,
                               int maxOverScrollX, int maxOverScrollY, boolean isTouchEvent) {
    return super.overScrollBy(
            deltaX,
            deltaY,
            scrollX,
            scrollY,
            scrollRangeX,
            scrollRangeY,
            mIsOverScrollEnabled ? maxOverScrollX : 0,
            mIsOverScrollEnabled ? maxOverScrollY : 0,
            isTouchEvent);
}