Android RecyclerView.Adapter的写法123

1、ListAdapter(listView格式)

public class ListAdapter extends RecyclerView.Adapter<ListAdapter.ListHolder> {    int icons[] = {R.drawable.vector_icon_cloud, R.drawable.vector_icon_movie, R.drawable.vector_icon_laptop, R.drawable.vector_icon_loop, R.drawable.vector_icon_menu, R.drawable.vector_icon_mood, R.drawable.vector_icon_palette, R.drawable.vector_icon_search, R.drawable.vector_icon_time, R.drawable.vector_icon_work};    String names[] = {"Cloud", "Movie", "Laptop", "Loop", "Menu", "Mood", "Palette", "Search", "Time", "Work"};    Context context;    boolean flag;    public ListAdapter(Context context, boolean flag) {        this.context = context;        this.flag = flag;    }    @Override    public ListHolder onCreateViewHolder(ViewGroup parent, int viewType) {       View view = LayoutInflater.from(context).inflate(flag ? R.layout.list_item : R.layout.list_item_h, parent, false);        return new ListHolder(view);    }    @Override    public void onBindViewHolder(ListHolder holder, int position) {        holder.setData(position);    }    @Override    public int getItemCount() {        return 1000;   }    class ListHolder extends RecyclerView.ViewHolder {        ImageView icon;        TextView name;        TextView subName;        public ListHolder(View itemView) {            super(itemView);            icon = (ImageView) itemView.findViewById(R.id.icon);            name = (TextView) itemView.findViewById(R.id.name);            subName = (TextView) itemView.findViewById(R.id.subname);        }        public void setData(int position) {            icon.setImageDrawable(context.getResources().getDrawable(icons[position % 10]));            name.setText(names[position % 10]);            subName.setText("This is position " + position);        }    }}

2、GridAdapter(gridViewg格式)

public class GridAdapter extends RecyclerView.Adapter<GridAdapter.ListHolder>{    int icons[] = {R.drawable.g1,R.drawable.g2,R.drawable.g3,R.drawable.g4,R.drawable.g5,R.drawable.g6,R.drawable.g7,R.drawable.g9,            R.drawable.g10,R.drawable.g11,R.drawable.g12,R.drawable.g13,R.drawable.g14,R.drawable.g15,R.drawable.g16,R.drawable.g17,R.drawable.g18,R.drawable.g19,            R.drawable.g20,R.drawable.g21,R.drawable.g22,R.drawable.g23,R.drawable.g24,R.drawable.g25,R.drawable.g26,R.drawable.g27,R.drawable.g28,R.drawable.g29,};    String names[] = {"浏览器","输入法","健康","效率","教育","理财","阅读","个性化","购物","资讯","生活","工具","出行","通讯","拍照","社交","影音","安全","休闲","棋牌","益智","射击","体育","儿童","网游","角色","策略","经营","竞速"};    Context context;    boolean flag;    public GridAdapter(Context context, boolean flag){        this.context = context;        this.flag = flag;    }    @Override    public ListHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view = LayoutInflater.from(context).inflate(R.layout.grid_item, parent, false);        return new ListHolder(view);    }    @Override    public void onBindViewHolder(ListHolder holder, int position) {        holder.setData(position);    }    @Override    public int getItemCount() {        return 1000;    }    class ListHolder extends RecyclerView.ViewHolder {        ImageView icon;        TextView name;        public ListHolder(View itemView) {            super(itemView);            icon = (ImageView) itemView.findViewById(R.id.pic);            name = (TextView) itemView.findViewById(R.id.name);        }        public void setData(int position){            icon.setImageDrawable(context.getResources().getDrawable(icons[position % icons.length]));            name.setText(names[position % names.length]);        }    }}

3、StaggeredGridAdapter(瀑布流)

public class StaggeredGridAdapter extends RecyclerView.Adapter<StaggeredGridAdapter.ListHolder>{    Context context;    boolean flag;    int iconsV[] = {R.drawable.p1,R.drawable.p2,R.drawable.p3,R.drawable.p4,R.drawable.p5,R.drawable.p6,R.drawable.p7,R.drawable.p9,            R.drawable.p10,R.drawable.p11,R.drawable.p12,R.drawable.p13,R.drawable.p14,R.drawable.p15,R.drawable.p16,R.drawable.p17,R.drawable.p18,R.drawable.p19,            R.drawable.p20,R.drawable.p21,R.drawable.p22,R.drawable.p23,R.drawable.p24,R.drawable.p25,R.drawable.p26,R.drawable.p27,R.drawable.p28,R.drawable.p29,            R.drawable.p30,R.drawable.p31,R.drawable.p32,R.drawable.p33,R.drawable.p34,R.drawable.p35,R.drawable.p36,R.drawable.p37,R.drawable.p38,R.drawable.p39,            R.drawable.p40,R.drawable.p41,R.drawable.p42,R.drawable.p43,R.drawable.p44};    int iconsH[] = {R.drawable.h1,R.drawable.h2,R.drawable.h3,R.drawable.h4,R.drawable.h5,R.drawable.h6,R.drawable.h7,R.drawable.h9,            R.drawable.h10,R.drawable.h11,R.drawable.h12,R.drawable.h13,R.drawable.h14,R.drawable.h15,R.drawable.h16,R.drawable.h17,R.drawable.h18,R.drawable.h19,            R.drawable.h20,R.drawable.h21,R.drawable.h22,R.drawable.h23,R.drawable.h24,R.drawable.h25,R.drawable.h26,R.drawable.h27,R.drawable.h28,R.drawable.h29,            R.drawable.h30,R.drawable.h31,R.drawable.h32,R.drawable.h33,R.drawable.h34,R.drawable.h35,R.drawable.h36,R.drawable.h37,R.drawable.h38,R.drawable.h39,            R.drawable.h40,R.drawable.h41,R.drawable.h42,R.drawable.h43,R.drawable.h44};    public StaggeredGridAdapter(Context context, boolean flag){        this.context = context;        this.flag = flag;    }    @Override    public ListHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view = LayoutInflater.from(context).inflate(flag ? R.layout.staggered_grid_item : R.layout.staggered_grid_item_h, parent, false);        return new ListHolder(view);    }    @Override    public void onBindViewHolder(ListHolder holder, int position) {        holder.setData(position);    }    @Override    public int getItemCount() {        return 1000;    }    class ListHolder extends RecyclerView.ViewHolder {        ImageView icon;        TextView name;        public ListHolder(View itemView) {            super(itemView);            icon = (ImageView) itemView.findViewById(R.id.pic);            name = (TextView) itemView.findViewById(R.id.name);        }        public void setData(int position){            if (flag) {                icon.setImageResource(iconsV[position % iconsV.length]);            } else {                icon.setImageResource(iconsH[position % iconsH.length]);            }            name.setText("This is position "+ position);        }    }}

四：用法

private View initListView(boolean isVer) {        toolbar.setSubtitle(isVer ?"LinearLayoutManager Vertical":"LinearLayoutManager Horizontal");        LinearLayoutManager layoutManager = new LinearLayoutManager(this);        layoutManager.setOrientation(isVer ? LinearLayoutManager.VERTICAL : LinearLayoutManager.HORIZONTAL);        recyclerView.setLayoutManager(layoutManager);        recyclerView.setAdapter(new ListAdapter(this,isVer));       // recyclerView.setHasFixedSize(true);        recyclerView.setBackgroundColor(Color.WHITE);        return recyclerView;    }    private View initGridView(boolean isVer) {        toolbar.setSubtitle(isVer ?"GridLayoutManager Vertical":"GridLayoutManager Horizontal");        GridLayoutManager layoutManager = new GridLayoutManager(this,isVer ?3:4);        layoutManager.setOrientation(isVer ? LinearLayoutManager.VERTICAL : LinearLayoutManager.HORIZONTAL);        recyclerView.setLayoutManager(layoutManager);        recyclerView.setHasFixedSize(true);        recyclerView.setAdapter(new GridAdapter(this,isVer));        return recyclerView;    }    private View initStaggeredGridView(boolean isVer) {        toolbar.setSubtitle(isVer ?"StaggeredGridLayoutManager Vertical":"StaggeredGridLayoutManager Horizontal");        StaggeredGridLayoutManager layoutManager = new StaggeredGridLayoutManager(2,isVer ? LinearLayoutManager.VERTICAL : LinearLayoutManager.HORIZONTAL);        recyclerView.setLayoutManager(layoutManager);        recyclerView.setAdapter(new StaggeredGridAdapter(this,isVer));        return recyclerView;    }