listview多个不同的item布局

转载 向前冲org

主类关键代码如下：

//添加数据
	public List<ViewItem> getData() {
		list = new ArrayList<ViewItem>();
		for (int i = 0; i < 20; i++) {
			ViewItem item = new ViewItem();//这个必须在这里new 不然 数据都是一样的

			if (i % 3 == 0) {
				item.type = 0;
			} else {
				item.type = 1;
			}

			item.address = "tianjin" + i;
			item.name = "wang" + i;
			list.add(item);
			
		}

		return list;
	}

适配器代码如下：

public class PlayAdapter extends BaseAdapter {
	/**
	 * 标题的item
	 */
	public static final int ITEM_TITLE = 0;
	/**
	 * 二级菜单的item
	 */
	public static final int ITEM_INTRODUCE = 1;
	private List<ViewItem> mList;
	private Context context;

	private LayoutInflater inflater;

	// 两个样式 两个holder。100就写100holder。。当然你何以把他抽离出来这里先只为了说明问题
	class Holder1 {
		TextView play_title;

		Holder1(View view) {
			play_title = (TextView) view.findViewById(R.id.play_title);
		}

	}

	class Holder2 {
		TextView play_introduce_title;
		ImageView play_iv;

		Holder2(View view) {
			play_introduce_title = (TextView) view
					.findViewById(R.id.play_introduce_title);
			play_iv = (ImageView) view.findViewById(R.id.play_iv);
		}
	}

	public PlayAdapter(Context context, List<ViewItem> mList) {
		this.context = context;
		this.mList = mList;
		inflater = LayoutInflater.from(context);
	}

	@Override
	public int getCount() {
		// TODO Auto-generated method stub
		System.out.println("mList.size()" + mList.size());
		return mList.size();
	}

	@Override
	public Object getItem(int arg0) {
		// TODO Auto-generated method stub
		return mList.get(arg0);
	}
	//返回 代表某一个样式 的 数值  
	@Override
	public int getItemViewType(int position) {
		// TODO Auto-generated method stub
		return mList.get(position).type;
	}

	//两个样式 返回2
	@Override
	public int getViewTypeCount() {
		// TODO Auto-generated method stub
		return 2;
	}

	@Override
	public long getItemId(int arg0) {
		// TODO Auto-generated method stub
		return arg0;
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		int type = getItemViewType(position);

		Holder1 holder1 = null;
		Holder2 holder2 = null;
		System.out.println("getView " + position + " " + convertView
				+ " type = " + type);
		if (convertView == null) {
			//选择某一个样式。。
			switch (type) {
			case ITEM_TITLE:
				convertView = inflater.inflate(R.layout.play_item_title, null);
				holder1 = new Holder1(convertView);

				holder1.play_title.setText(mList.get(position).name);

				convertView.setTag(holder1);
				break;
			case ITEM_INTRODUCE:
				convertView = inflater.inflate(R.layout.paly_item_introduce,
						null);
				holder2 = new Holder2(convertView);

				holder2.play_introduce_title
						.setText(mList.get(position).address);
				convertView.setTag(holder2);
				break;
			default:
				break;
			}
		} else {
			switch (type) {
			case ITEM_TITLE:
				holder1 = (Holder1) convertView.getTag();
				holder1.play_title.setText(mList.get(position).name);
				break;
			case ITEM_INTRODUCE:
				holder2 = (Holder2) convertView.getTag();
				holder2.play_introduce_title
						.setText(mList.get(position).address);
				break;

			default:
				break;
			}

		}

		return convertView;
	}

}

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