How to use

VerticalWebView

in

com.lzy.widget.vertical

@Override
public boolean isBottom() {
  return getHeight() + getScrollY() >= getContentHeight() * getScale();
}

  @Override
  public void goTop() {
    webview.goTop();
  }
}

  @Override
  public void goTop() {
    scrollTo(0, 0);
  }
}

@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
  switch (ev.getAction()) {
    case MotionEvent.ACTION_DOWN:
      downX = ev.getX();
      downY = ev.getY();
      //如果滑动到了最底部，就允许继续向上滑动加载下一页，否者不允许
      getParent().requestDisallowInterceptTouchEvent(true);
      break;
    case MotionEvent.ACTION_MOVE:
      float dx = ev.getX() - downX;
      float dy = ev.getY() - downY;
      boolean allowParentTouchEvent;
      if (Math.abs(dy) > Math.abs(dx)) {
        if (dy > 0) {
          //位于顶部时下拉，让父View消费事件
          allowParentTouchEvent = isTop();
        } else {
          //位于底部时上拉，让父View消费事件
          allowParentTouchEvent = isBottom();
        }
      } else {
        //水平方向滑动
        allowParentTouchEvent = true;
      }
      getParent().requestDisallowInterceptTouchEvent(!allowParentTouchEvent);
  }
  return super.dispatchTouchEvent(ev);
}

@Override
public boolean isTop() {
  return getScrollY() <= 0;
}

public void initView() {
  if (null != webview) {
    hasInited = true;
    progressBar.setVisibility(View.GONE);
    webview.loadUrl("https://github.com/jeasonlzy0216");
  }
}