ListView 与GridView 的Adapter

class Adapter1 extends BaseAdapter {

    private String[] str;

    private Context context;

    public Adapter1(Context context) {
        this.context = context;
    }

    public Adapter1() {
    }

    @Override
    public int getCount() {
        return 12;
    }

    @Override
    public Object getItem(int position) {
        return str[position];
    }

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


    /**
     * convertView ---------->缓存
     *
     * @param position
     * @param convertView
     * @param parent
     * @return
     */


    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder viewHolder = null;

        View view = null;
        if (convertView == null) {
            convertView = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item, parent, false);
            viewHolder = new ViewHolder();

            //载入数据 findViewById()
            viewHolder.imageView = (ImageView) convertView.findViewById(R.id.imageView);
            viewHolder.textView = (TextView) convertView.findViewById(R.id.textView3);
            viewHolder.textView1 = (TextView) convertView.findViewById(R.id.textView4);

            convertView.setTag(viewHolder);

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

        String str2 = "https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=1046628557,1370971270&fm=26&gp=0.jpg";

        String str = "http://pic25.nipic.com/20121112/9252150_150552938000_2.jpg";

        Glide.with(parent.getContext()).load(str2).into(viewHolder.imageView);
        viewHolder.textView.setText("jello");

        System.out.println(parent.getContext());
        System.out.println(context);

        System.out.println("=================================================");
        viewHolder.textView1.setText("world");


        return convertView;
    }


    class ViewHolder {

        TextView textView;
        TextView textView1;
        ImageView imageView;
    }


}