ViewHolderList

一种基于ViewHolder编码的框架

1、让开发者只关注布局和数据绑定，省去其他的环节(封装List和Adapter的创建过程，省去网络处理和上拉下拉处理)，简化开发过程，提高工作效率。 2、已有ViewHolder可以在项目的任务布局中使用，提高复用性，省去重复编码工作。 3、代码更简洁，逻辑更清楚，增加项目的可维护性。

具体实现如下：

1、Bean对象：

public class TestBean {

String name;
String sex;

public TestBean(String name, String sex) {
    this.name = name;
    this.sex = sex;
}

public String getName() {
    return name;
}

public String getSex() {
    return sex;
}

}

2、LineData对象

public class SingleTestLineData extends AbstractLineData { @Override public BaseViewHolder getViewHolder() { return new SingleTestViewHolder(); } }

省去多列的LineData实现具体看代码内部

3、ViewHolder 对象

public class SingleTestViewHolder extends BaseViewHolder {

TextView nameTv, sexTv;

@Override
protected int layoutResId() {
    return R.layout.test_item;
}

@Override
protected void findViews(View rootView) {
    nameTv = (TextView) rootView.findViewById(R.id.name);
    sexTv = (TextView) rootView.findViewById(R.id.sex);
}

@Override
protected void bindDataToView(ILineData lineData) {
    SingleTestLineData singleTestLineData = ((SingleTestLineData) lineData);
    TestBean bean = (TestBean) singleTestLineData.getMembers().get(0);
    nameTv.setText(bean.getName());
    sexTv.setText(bean.getSex());
}

}

4、Activity对象

public class MainActivity extends Activity {

DefaultLineDataContainerView containerView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.simple_list_layout);
    containerView = (DefaultLineDataContainerView) findViewById(R.id.container_view);
    containerView.setScrollLoadingEnable(true);
    containerView.setRefLoadingEnable(true);
    containerView.setPageSize(15);
    containerView.setLoadDataListener(new DefaultLineDataContainerView.LoadDataListener() {

        @Override
        public void loadMoreData(int pageNow, int pageSize) {

            AbstractLineData lineData = null;
            ArrayList<TestBean> list = new ArrayList<TestBean>();
            String name ="";
            if (pageNow % 3 == 0) {
                lineData = new ThreeTestLineData();
                name = "3列同学";
            } else if ((pageNow % 3 == 1)) {
                lineData = new SingleTestLineData();
                name = "单列同学";
            } else {
                lineData = new DoubleTestLineData();
                name = "双列同学";
            }

            for (int i = 0; i < pageSize; i++) {
                list.add(new TestBean(name + (pageNow * pageSize + i), "女"));
            }
            containerView.addData(lineData.list2LineData(list), false);
        }

        @Override
        public void refreshData(int pageSize) {
            SingleTestLineData lineData = new SingleTestLineData();
            ArrayList<TestBean> list = new ArrayList<TestBean>();
            for (int i = 0; i < pageSize; i++) {
                list.add(new TestBean(("单列同学" + i), "男"));
            }
            containerView.setData(lineData.list2LineData(list), false);
        }

    });
    containerView.initData();
}

}

通过上面四步，一个支持多列以及上拉下面的ListView就完成了。