Android 5.0 v7扩展包之RecyclerView的使用以及通用适配器的封装实现

compile ‘com.android.support:appcompat-v7:23.2.1‘
compile ‘com.android.support:recyclerview-v7:23.2.1‘

/**
 * Created by Administrator on 2016/6/14.
 * 通用Recycler.ViewHolder
 */
public class UnityRecyclerAdapterViewHolder extends RecyclerView.ViewHolder {
    private static final UtilsLog lg = UtilsLog.getLogger(UnityRecyclerAdapterViewHolder.class);
    private SparseArray<View> mViews;
    private View mConvertView;

    public UnityRecyclerAdapterViewHolder(View itemView, ViewGroup parent) {
        super(itemView);
        this.mConvertView = itemView;
        this.mViews = new SparseArray<>();
}

    public View getConvertItemView() {
        return mConvertView;
}

    /**
     * 通过viewId获取控件
     *
     * @param viewId
* @return
*/
public <T extends View> T generateView(int viewId) {
        View view = mViews.get(viewId);
        if (view == null) {
            view = mConvertView.findViewById(viewId);
mViews.put(viewId, view);
}
        return (T) view;
}

    public <T extends View> T generateView(int viewId, Class<T> clz) {
        return (T) generateView(viewId);
}
}

/**
 * Created by Administrator on 2016/6/15.
 * Recycler.Adapter基类
 * 1.getItemLayoutId与getItemLayoutView二者选择其一进行复写：此处为支持布局以及代码方式
 * 2.该类还可以继续扩展，对仅有单个布局的情况，可以通过构造方法直接注入itemLayoutId
 */
public abstract class AbsUnityBaseRecyclerAdapter<T> extends RecyclerView.Adapter<UnityRecyclerAdapterViewHolder> implements INotifyAdapterDataSetChange {

    private static final UtilsLog lg = UtilsLog.getLogger(AbsUnityBaseRecyclerAdapter.class);
    private IAdapterDataModifyHelper<T> IAdapterataModifyHelper;//操作数据的Helper类
private LayoutInflater layoutInflater;

    public AbsUnityBaseRecyclerAdapter() {
        this.IAdapterataModifyHelper = new DataModifyHelper<>();
}

    public IAdapterDataModifyHelper<T> getDataModifyHelper() {
        this.IAdapterataModifyHelper.setNotifyAdapterDataSetChange(this);
        return IAdapterataModifyHelper;
}

    /*系统重写函数*/
@Override
public UnityRecyclerAdapterViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        lg.e("onCreateViewHolder");
        if (this.layoutInflater == null) {
            this.layoutInflater = LayoutInflater.from(parent.getContext());
}
        return new UnityRecyclerAdapterViewHolder(getItemLayoutView(viewType), parent);
}

    @Override
public void onBindViewHolder(UnityRecyclerAdapterViewHolder holder, int position) {
        lg.e("onBindViewHolder with postion[" + position + "]:" + holder.toString());
convert(IAdapterataModifyHelper.getDataResources().get(position), holder, position);
}

    @Override
public int getItemCount() {
        return IAdapterataModifyHelper.getDataResources().size();
}

    /**
     * 填充数据
     *
     * @param viewHolder
* @param position
*/
public abstract void convert(T itemEntity, UnityRecyclerAdapterViewHolder viewHolder, int position);

/**
     * 通过ItemViewType返回布局id
     *
     * @param viewType
* @return
*/
public int getItemLayoutId(int viewType) {
        return 0;
}

    /**
     * 通过viewType返回指定Item布局
     *
     * @param viewType
* @return
*/
public View getItemLayoutView(int viewType) {
        return layoutInflater.inflate(getItemLayoutId(viewType), null);
}

    @Override
public void notifyAdapter() {
        notifyDataSetChanged();
}
}

adapter = new SingleItemRecyclerAdapter<CorePageEntity>(R.layout.simple_item_horizontal) {
    @Override
public void convert(CorePageEntity itemEntity, UnityRecyclerAdapterViewHolder viewHolder, int position) {
        if (position != 0) {
            lg.e("convert with position " + position + ":" + viewHolder.toString());
}
        viewHolder.generateView(R.id.imgItemCommon, ImageView.class).setVisibility(View.GONE);
viewHolder.generateView(R.id.tvItemCommon, TextView.class).setText(itemEntity.getCorePageTitle());
}
};

gridActMain.setAdapter(adapter);
gridActMain.setLayoutManager(new GridLayoutManager(getCurActivity(), 1));

adapter.getDataModifyHelper().setDataResource(//添加数据集);