ScrollView嵌套ListVIew两者之间滑动问题

package demo.com.listviewinscrollview; import android.content.Context; import android.util.AttributeSet; import android.util.Log; import android.view.MotionEvent; import android.widget.AbsListView; import android.widget.ListView; /** * Created by Alv_chi on 2016/12/6. */ public class MyListView extends ListView implements AbsListView.OnScrollListener { private static final String TAG = "MyListView"; private MyScrollView myScrollView; private boolean isPullup; private int svCurrentYPosition; private boolean isLastItem = false; private boolean isEndOfListView = false; private boolean isFirstItem = false; private float downY; private float moveY; private boolean isStartOfListView = false; public MyListView(Context context) { this(context, null); } public MyListView(Context context, AttributeSet attrs) { this(context, attrs, 0); } public MyListView(Context context, AttributeSet attrs, int defStyleAttr) { this(context, attrs, defStyleAttr, 0); } public MyListView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); setOnScrollListener(this); } @Override public boolean onTouchEvent(MotionEvent ev) { switch (ev.getAction()) { case MotionEvent.ACTION_DOWN: downY = ev.getY(); break; case MotionEvent.ACTION_MOVE: moveY = ev.getY(); break; } // 用于判断手指是向上滑动还是向下滑动； isPullup = downY > moveY ? true : false; return super.onTouchEvent(ev); } @Override public boolean dispatchTouchEvent(MotionEvent ev) { int lvTop = getTop(); int height = getHeight(); height += lvTop; lvTop -= 10; // 此处获取ScrollView对象，也可以用Setter方法set进来； myScrollView = (MyScrollView) (getParent().getParent()); if (myScrollView != null) { svCurrentYPosition = myScrollView.getcurrentYPosition(); Log.e(TAG, "onTouchEvent: svCurrentYPosition=" + svCurrentYPosition); } // 当LIstView到达屏幕顶部时（一定范围内），不让其父ScrollView拦截， // 也就是让ListView去滚动（消费），超出范围就拦截ScrollView滚动（消费）； if (svCurrentYPosition < height && svCurrentYPosition > lvTop) { // 判断是否listVIew划到两端的尽头，如果是就让ScrollView截断事件，让ScrollVIew滚动，而不是ListVIew滚动； if ((isEndOfListView && isPullup) || (isStartOfListView && !isPullup)) { myScrollView.requestDisallowInterceptTouchEvent(false); } else { myScrollView.requestDisallowInterceptTouchEvent(true); } } else { myScrollView.requestDisallowInterceptTouchEvent(false); } return super.dispatchTouchEvent(ev); } @Override public void onScrollStateChanged(AbsListView view, int scrollState) { if (scrollState == SCROLL_STATE_IDLE && isLastItem) { isEndOfListView = true; } else { isEndOfListView = false; } if (scrollState == SCROLL_STATE_IDLE && isFirstItem) { isStartOfListView = true; } else { isStartOfListView = false; } } @Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { isLastItem = (firstVisibleItem + visibleItemCount == totalItemCount); isFirstItem = firstVisibleItem == 0 ? true : false; } }