listview的简单用法

adapter代码


/**
 * Created by zhy on 2017/6/2.
 */

public class BranchActEndAdapter extends BaseAdapter {

    Context context;
    private LayoutInflater inflater;

    public BranchActEndAdapter(Context context) {
        this.context = context;
        inflater = LayoutInflater.from(context);
    }

    @Override
    public int getCount() {
        return 3;
    }

    @Override
    public Object getItem(int i) {
        return i;
    }

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

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        ViewHolder viewHolder;
        if (view == null) {
            viewHolder = new ViewHolder();
            view = inflater.inflate(R.layout.lv_branch_end, null);
            viewHolder.tv_title = (TextView) view.findViewById(R.id.branch_end_lv_title);
            viewHolder.tv_place = (TextView) view.findViewById(R.id.branch_end_lv_place);
            viewHolder.tv_ing = (TextView) view.findViewById(R.id.branch_end_lv_ing);
            viewHolder.im_activity= (ImageView) view.findViewById(R.id.branch_end_lv_img);
            view.setTag(viewHolder);
        }else {
            viewHolder = (ViewHolder) view.getTag();
        }
        viewHolder.tv_title.setText("华北电网风电出力超2700千瓦创新高(详见正文)");
        viewHolder.tv_place.setText("地点");
        viewHolder.tv_ing.setText("进行时");
        viewHolder.im_activity.setImageResource(R.drawable.stylebuild_01);
        return view;
    }

    private class ViewHolder {
        TextView tv_title;
        TextView tv_place;
        TextView tv_ing;
        ImageView im_activity;
    }
}


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