WheelViewLib/src/main/java/com/lukedeighton/wheelview/WheelView.java
public void setWheelItemCount(int count) {
        mItemCount = count;
        mItemAngle = calculateItemAngle(count);

        if (mWheelBounds != null) {
            invalidate();
            //TODO ?
        }
    }
public void setWheelItemCount(int count) {
        mItemCount = count;
        mItemAngle = calculateItemAngle(count);

        if (mWheelBounds != null) {
            invalidate();
            //TODO ?
        }
    }
Sets the number of items to be displayed on the wheel.