scrollviewとカスタムコントロールの上下スライド衝突iphone時間コントロールwheelviewを模倣

/**
 *  ViewPager ScrollView
 * @Description:  ViewPager ScrollView 
 */
public class ScrollViewExtend extends ScrollView {
	//  
	private float xDistance, yDistance, xLast, yLast;

	public ScrollViewExtend(Context context, AttributeSet attrs) {
		super(context, attrs);
	}

	@Override
	public boolean onInterceptTouchEvent(MotionEvent ev) {
		switch (ev.getAction()) {
		case MotionEvent.ACTION_DOWN:
			xDistance = yDistance = 0f;
			xLast = ev.getX();
			yLast = ev.getY();
			break;
		case MotionEvent.ACTION_MOVE:
			final float curX = ev.getX();
			final float curY = ev.getY();

			xDistance += Math.abs(curX - xLast);
			yDistance += Math.abs(curY - yLast);
			xLast = curX;
			yLast = curY;
			// X Y 1.5   true scrollview  
			if(xDistance> yDistance*1.5){
				return true;
			}else{
				return false;
			}
		}

		return super.onInterceptTouchEvent(ev);
	}
}