万能的适配器(RecyclerView)

用RecyclerView要导入依赖:

compile 'com.android.support:recyclerview-v7:21.0.0'

CommonAdapter:

public abstract class CommonAdapter extends RecyclerView.Adapter {

    private LayoutInflater mLayoutInflater;
    private Context mContext;
    private List mData;
    private int mLayoutId;

    public CommonAdapter(Context context,int layoutId,List mData){
        this.mContext=context;
        this.mLayoutInflater=LayoutInflater.from(context);
        this.mData=mData;
        this.mLayoutId=layoutId;
    }

    @Override
    public int getItemViewType(int position) {
        if (position==13){
            return 1;
        }else {
            return 0;
        }

    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        if (viewType==1){
            ViewHolder viewHolder=ViewHolder.get(mContext,R.layout.layout2,parent);
            return viewHolder;
        }else {
            ViewHolder viewHolder=ViewHolder.get(mContext,R.layout.item_layout,parent);
            return viewHolder;
        }

    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {

        convert(holder,mData.get(position));
    }

    public abstract void convert(ViewHolder viewHolder,T item);

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

ViewHolder:

public class ViewHolder extends RecyclerView.ViewHolder{
    private SparseArray mView;
    private View mConvertView;
    private Context mContext;

    public ViewHolder(Context context, View itemView, ViewGroup parent) {
        super(itemView);
        this.mContext=context;
        mConvertView=itemView;
        mView=new SparseArray<>();
    }

    public static ViewHolder get(Context context,int layLout,ViewGroup parent){
        View itemView= LayoutInflater.from(context).inflate(layLout,parent,false);
        ViewHolder viewHolder=new ViewHolder(context,itemView,parent);
        return viewHolder;
    }

    public T getView(int viewId){
        View view=mView.get(viewId);
        if (view==null){
            view=mConvertView.findViewById(viewId);
            mView.put(viewId,view);
        }
        return (T)view;
    }

    public ViewHolder setText(int viewId, String text)
    {
        TextView tv = getView(viewId);
        tv.setText(text);
        return this;
    }

    public ViewHolder setImageResource(int viewId, int resId)
    {
        ImageView view = getView(viewId);
        view.setImageResource(resId);
        return this;
    }

    public ViewHolder setOnClickListener(int viewId,
                                         View.OnClickListener listener)
    {
        View view = getView(viewId);
        view.setOnClickListener(listener);
        return this;
    }
}

MainActivity:

public class MainActivity extends AppCompatActivity {
    private RecyclerView recyclerView;
    private List mData=new ArrayList<>();
    private CommonAdapter adapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_layout);
        for (int i=0;i<30;i++){
            mData.add(i+"");
        }
        recyclerView= (RecyclerView) findViewById(R.id.rv1);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        adapter=new CommonAdapter(this,R.layout.item_layout,mData) {
            @Override
            public void convert(ViewHolder viewHolder, String item) {
                TextView tv = viewHolder.getView(R.id.tv);
                tv.setText(item);
            }

        };
        recyclerView.setAdapter(adapter);
    }
}

main_layout:







item_layout:



   

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