android 自定义Adapter

android 自定义Adapter(自留)

public class GiftListItemAdapter extends BaseAdapter{
	
	private ArrayList<GiftItem> data;
	private Context context;
	private LayoutInflater myInflater;
	
	public GiftListItemAdapter(Context context,ArrayList<GiftItem> data){
		this.context=context;
		this.data=data;
		myInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
	}

	@Override
	public int getCount() {
		return data.size();
	}

	@Override
	public Object getItem(int position) {
		return data.get(position);
	}

	@Override
	public long getItemId(int position) {
		return position;
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		GiftViewHolder holder;
		if(null == convertView){
			holder = new GiftViewHolder();
			convertView = myInflater.inflate(R.layout.gift_list_item, null);
			holder.gift_list_item_layout=(RelativeLayout) convertView.findViewById(R.id.gift_list_item_layout);
			holder.gift_list_item_imgv = (ImageView) convertView.findViewById(R.id.gift_list_item_imgv);
			holder.gift_list_item_name=(TextView) convertView.findViewById(R.id.gift_list_item_name);
			holder.gift_list_item_price=(TextView) convertView.findViewById(R.id.gift_list_item_price);
			holder.gift_list_item_remain=(TextView) convertView.findViewById(R.id.gift_list_item_remain);
			convertView.setTag(holder);
		}else{
			holder = (GiftViewHolder) convertView.getTag();
		}
		holder.gift_list_item_imgv.setImageResource(data.get(position).getImg_id());
		holder.gift_list_item_name.setText(data.get(position).getName());
		holder.gift_list_item_price.setText(data.get(position).getPrice()==0?"免费":data.get(position).getPrice()+"元");
		holder.gift_list_item_remain.setText("剩余"+data.get(position).getRemain()+"件");
		
		final String text = data.get(position).getName();
		holder.gift_list_item_layout.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				Toast.makeText(context, text,
					     Toast.LENGTH_SHORT).show();
				
				Intent intent = new Intent();
				intent.setClass(context, AdapterListViewActivity.class);
				context.startActivity(intent);
				
			}
		});
		
		return convertView;
	}
	
	
}

class GiftViewHolder{
	RelativeLayout gift_list_item_layout;
	ImageView gift_list_item_imgv;
	TextView gift_list_item_name;
	TextView gift_list_item_price;
	TextView gift_list_item_remain;
}