RecycleView多条目加载

RecyclerView适配器设计

最新推荐文章于 2021-08-21 16:48:38 发布

原创最新推荐文章于 2021-08-21 16:48:38 发布 · 366 阅读

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CC 4.0 BY-SA版权

本文介绍了一个使用Java编写的RecyclerView适配器实现案例，该适配器能够处理多种类型的视图，并展示了如何根据不同位置返回不同布局的ViewHolder。适用于Android开发者理解和实现复杂的列表布局。

适配器

public class Shouyi_adapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
    public final static int TYPE_1 = 0;
    public final static int TYPE_2 = 1;
    public final static int TYPE_3 = 2;
    public final static int TYPE_4 = 3;
    public final static int TYPE_5 = 4;
    private List<String> LBlist = new ArrayList<>();
    FragmentActivity activity;
    SyBean bean;
    private RecyclerView.ViewHolder hoder=null;
    public Shouyi_adapter(FragmentActivity activity, SyBean bean) {
        this.bean = bean;
        this.activity = activity;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = null;
        if (TYPE_1 == viewType) {
            view = View.inflate(activity, R.layout.layout_sylb, null);
            return new type1(view);
        }else if(viewType==TYPE_2){
            view = View.inflate(activity, R.layout.layout_grid, null);
            return new type2(view);
        }else if(viewType==TYPE_3){
            view = View.inflate(activity, R.layout.layout_sydonghua, null);
            return new type3(view);}
        else if(viewType==TYPE_4){
            view = View.inflate(activity, R.layout.layout_shang, null);
            return new type4(view);}
        else if(viewType==TYPE_5){
            view = View.inflate(activity, R.layout.layout_syxrecy, null);
            return new type5(view);} else {
            return null;
        }
    }

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

        if (holder instanceof type1) {

        } else if (holder instanceof type2) {

}

        else if(holder instanceof type3) {

        }

        else if(holder instanceof type4){

        }

        else if(holder instanceof type5){

        }

}

    @Override
    public int getItemViewType(int position) {
        if (position == 0) {
            return TYPE_1;
        } else if (position == 1) {
            return TYPE_2;
        } else if (position == 2) {
            return TYPE_3;
        } else if (position == 3) {
            return TYPE_4;
        } else {
            return TYPE_5;
        }

}

    @Override
    public int getItemCount() {
        return 5;
    }

public class type1 extends RecyclerView.ViewHolder {
Banner banner;

        public type1(View itemView) {
            super(itemView);

        }
    }

public class type2 extends RecyclerView.ViewHolder {

private final RecyclerView recyclerView;

public type2(View itemView) {
super(itemView);

        }
    }

public class type3 extends RecyclerView.ViewHolder {

private final SimpleDraweeView simpleDraweeView;

public type3(View itemView) {
super(itemView);

        }
    }