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Android ScrollView 和ListView 一起使用的问题汇总
1.ScrollView 嵌套 ListView ，touch事件的截获问题。
参考 http://www.cnblogs.com/lqminn/archive/2013/03/02/2940194.html
http://blog.csdn.net/chaihuasong/article/details/17499799
_scrollView.requestDisallowInterceptTouchEvent(true);这句话的意思是告诉scrollView,滚动的事件交给我处理。用完以后记得还回去
_scrollView.requestDisallowInterceptTouchEvent(false);如果不设置回去，ScrollView将无法滚动了。
2.ScrollView 滚动时，ListView的第一个条目是否处于显示状态？
参考 http://stackoverflow.com/questions/4628800/android-how-to-check-if-a-view-inside-of-scrollview-is-visible
boolean checkNeedRefresh() { Rect scrollBounds = new Rect(); View firstChild = listView.getChildAt(0); _scrollView.getHitRect(scrollBounds); if (firstChild.getLocalVisibleRect(scrollBounds)) { // Any portion of the firstChild, even a single pixel, is within the // visible window return true; } else { // NONE of the firstChild is within the visible window return false; } }
3. listView不能显示完整
参考 http://blog.csdn.net/hahashui123/article/details/39177057
http://blog.csdn.net/solomonxiang/article/details/26507145
public static void setListViewHeight(ListView listView) { try { int totalHeight = 0; ListAdapter adapter = listView.getAdapter(); for (int i = 0, len = adapter.getCount(); i < len; i++) { // listAdapter.getCount() View listItem = adapter.getView(i, null, listView); listItem.setLayoutParams(new LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); listItem.measure(0, 0); totalHeight += listItem.getMeasuredHeight(); } ViewGroup.LayoutParams params = listView.getLayoutParams(); params.height = totalHeight + (listView.getDividerHeight() * (listView.getCount() - 1)); listView.setLayoutParams(params); } catch (Exception ex) { ex.printStackTrace(); } }
顺带GridView
public static void setGridViewHeight(GridView gridView, int numColumns) { try { ListAdapter adapter = gridView.getAdapter(); int row = 3; View listItem = adapter.getView(0, null, gridView); if (listItem == null) return; listItem.setLayoutParams(new LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); listItem.measure(0, 0); int totalHeight = listItem.getMeasuredHeight() * row + (gridView.getVerticalSpacing() * (row - 1)); ViewGroup.LayoutParams params = gridView.getLayoutParams(); params.height = totalHeight; gridView.setLayoutParams(params); } catch (Exception ex) { ex.printStackTrace(); } }
如果ListView 带有BottomView
public static void setListViewHeight(ListView listView) { try { int totalHeight = 0; int bottomHeight = 0; ListAdapter dataAdapter = null; int totalItems = 0; ListAdapter adapter = listView.getAdapter(); if (adapter instanceof HeaderViewListAdapter) { HeaderViewListAdapter headerViewListAdapter = ((HeaderViewListAdapter) adapter); dataAdapter = headerViewListAdapter.getWrappedAdapter(); totalItems = dataAdapter.getCount(); int allItems = headerViewListAdapter.getCount(); View bottomItem = headerViewListAdapter.getView(allItems - 1, null, listView); bottomItem.measure(0, 0); bottomHeight = bottomItem.getMeasuredHeight(); } else { dataAdapter = adapter; } for (int i = 0, len = totalItems; i < len; i++) { View listItem = dataAdapter.getView(i, null, listView); listItem.setLayoutParams(new LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); listItem.measure(0, 0); totalHeight += listItem.getMeasuredHeight(); } int listviewCount = listView.getCount(); int height = totalHeight + (listView.getDividerHeight() * listviewCount + 1) + bottomHeight; ViewGroup.LayoutParams params = listView.getLayoutParams(); params.height = height; listView.setLayoutParams(params); listView.requestLayout(); } catch (Exception ex) { ex.printStackTrace(); } }
4. 其他，自定义控件实现ListView
http://www.cnblogs.com/lesliefang/p/3587154.html
Android ScrollView 和ListView 一起使用的问题汇总
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