GridViewAdapter

最新推荐文章于 2023-08-02 01:58:05 发布

FansyMeng

最新推荐文章于 2023-08-02 01:58:05 发布

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CC 4.0 BY-SA版权

文章标签： GridView

本文链接：https://blog.youkuaiyun.com/qq_22230935/article/details/54927304

本文介绍了一个自定义的GridView适配器类GridViewAdapter，该类继承自BaseAdapter，用于填充GridView的数据。GridViewAdapter接收上下文和一个包含ChannelInfoBean对象的列表作为参数，并提供了获取数据项数量、指定位置的数据项及唯一ID的方法。此外，还实现了getView方法，通过ViewHolder模式优化视图复用，显示频道名称和图片。

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留着以后备用

/**
 * Created by pig on 2017/2/7.
 */
    public class GridViewAdapter extends BaseAdapter{
    private Context context;
    private List<ResultBeanData.ResultBean.ChannelInfoBean> channel_info;

    public GridViewAdapter(Context context, List<ResultBeanData.ResultBean.ChannelInfoBean> channel_info) {
        this.context = context;
        this.channel_info = channel_info;
        Log.e("+++++++++++++",channel_info.get(0).getChannel_name());
    }

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

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

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
         ViewHolder viewHolder;
        if (convertView == null){
            convertView = View.inflate(context, R.layout.item_channel,null);
            viewHolder = new ViewHolder(convertView);
            convertView.setTag(viewHolder);

        }
        else {
            viewHolder= (ViewHolder) convertView.getTag();
        }

        ResultBeanData.ResultBean.ChannelInfoBean channelInfoBean = channel_info.get(position);
        viewHolder.tvChannel.setText(channelInfoBean.getChannel_name());
        Glide.with(context)
                .load(Constants.BASE_URl_IMAGE +channelInfoBean.getImage())
                .into(viewHolder.ivChannel);
        return convertView;
    }
     class ViewHolder{
        protected ImageView ivChannel;
        protected TextView tvChannel;
        public ViewHolder(View convertView) {
            ivChannel = (ImageView) convertView.findViewById(R.id.iv_channel);
            tvChannel = (TextView) convertView.findViewById(R.id.tv_channel);
        }
    }
}