ListView进行不同布局的显示,就需要重写5种方法,本文以两种布局为例
。
利用假数据进行模拟:
添加适配器
class MyBaseAdapter extends BaseAdapter{ @Override public int getCount() { return mData.size()+mReshdata.size(); } @Override public Object getItem(int i) { return null; } @Override public long getItemId(int i) { return 0; } /** * * @return返回两种类型布局 */ @Override public int getViewTypeCount() { return 2; } /** * 不同布局绘制状况 // * @param position * @return */ @Override public int getItemViewType(int position) { Log.d("TAG","POSITO="+position+","+"getcount="+mData.size()); if (position<mData.size()){ return first; }else { return second; } } @Override public View getView(int i, View view, ViewGroup viewGroup) { Log.d("TAG","I="+i); int itemViewType = getItemViewType(i); Log.d("TAG","itemViewType="+itemViewType); ViewHolder holder = null; ViewHolderTwo holder_se = null; if (view == null){ switch (itemViewType){ case first: holder = new ViewHolder(); view = View.inflate(getApplicationContext(), R.layout.item_lv, null); holder.tv_data = (TextView) view.findViewById(R.id.tv_sj); view.setTag(holder); break; case second: holder_se = new ViewHolderTwo(); view = View.inflate(getApplicationContext(), R.layout.item_second, null); holder_se.tv_second = (TextView) view.findViewById(R.id.tv_second); view.setTag(holder_se); break; default: break; } }else { switch (itemViewType){ case first: holder = (ViewHolder) view.getTag(); break; case second: holder_se = (ViewHolderTwo) view.getTag(); break; default: break; } } switch (itemViewType){ case first: String s = mData.get(mData.size()-1);//mData.get(i) holder.tv_data.setText(s); break; case second: Log.d("TAG","i-mData.size()="+ (i-mData.size())); String second = mReshdata.get(i-mData.size()); holder_se.tv_second.setText(second); break; default: break; } return view; }}class ViewHolder{ TextView tv_data; }class ViewHolderTwo{ TextView tv_second;}进行不同布局的加载就实现了:
布局用的就是简单的TextView就不列出了。
同理实现多种类型,按照这样的逻辑都可以实现。
时间: 2024-10-11 01:52:06