RecyclerView 实现瀑布流及点击事件，含点击回调的接口

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RecyclerView 实现瀑布流及点击事件

public class FruitAdapter extends RecyclerView.Adapter<FruitAdapter.ViewHolder> {    private List<Fruit> mFruitList;    /**     *自定义内部类，构造传入条目view     */    static class ViewHolder extends RecyclerView.ViewHolder{        ImageView fruitImage;        TextView fruitName;        View fruitView;        public ViewHolder(View itemView) {            super(itemView);            fruitView=itemView;            fruitImage= (ImageView) itemView.findViewById(R.id.fruit_image);            fruitName= (TextView) itemView.findViewById(R.id.fruit_name);        }    }    //Adapter的构造传入数组    public FruitAdapter(List<Fruit> mFruitList) {        this.mFruitList = mFruitList;    }    //传入布局，绑定布局    @Override    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view= LayoutInflater.from(parent.getContext()).inflate(R.layout.fruit_item,parent,false);        final ViewHolder holder=new ViewHolder(view);        holder.fruitView.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                int position=holder.getAdapterPosition();                Fruit fruit=mFruitList.get(position);                Toast.makeText(view.getContext(),"你想吃"+fruit.getName()+"的水果",Toast.LENGTH_SHORT).show();            }        });        holder.fruitImage.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                int position=holder.getAdapterPosition();                Fruit fruit=mFruitList.get(position);                Toast.makeText(view.getContext(),"你想吃图片的"+fruit.getName(),Toast.LENGTH_SHORT).show();            }        });        return holder;    }    //绑定数据    @Override    public void onBindViewHolder(ViewHolder holder, int position) {        Fruit fruit=mFruitList.get(position);        holder.fruitImage.setImageResource(fruit.getImageId());        holder.fruitName.setText(fruit.getName());    }    @Override    public int getItemCount() {        return mFruitList.size();    }}

MainActivity的内容

public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private Button button;    private ProgressBar pb_test;    private RecyclerView recycler_view;    private List<Fruit> fruitList=new ArrayList<>();    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initFruits();//初始化数组        initView();    }    private void initView() {        button = (Button) findViewById(R.id.button);        button.setOnClickListener(this);        pb_test = (ProgressBar) findViewById(R.id.pb_test);        recycler_view = (RecyclerView) findViewById(R.id.recycler_view);        //LinearLayoutManager layoutManager=new LinearLayoutManager(this);        //layoutManager.setOrientation(LinearLayoutManager.HORIZONTAL); //横向滚动  GridLayoutManager  StaggeredGridLayoutManager 瀑布流        StaggeredGridLayoutManager layoutManager=new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL);        recycler_view.setLayoutManager(layoutManager);        FruitAdapter adapter=new FruitAdapter(fruitList);        recycler_view.setAdapter(adapter);        //recycler_view.setOnClickListener(this);    }    @Override    public void onClick(View v) {        switch (v.getId()) {            case R.id.button:                break;        }    }    private void initFruits() {        for (int i = 0; i < 2; i++) {            Fruit apple = new Fruit(getRandomLengthName("Apple"), R.drawable.apple_pic);            fruitList.add(apple);            Fruit banana = new Fruit(getRandomLengthName("Banana"), R.drawable.banana_pic);            fruitList.add(banana);            Fruit orange = new Fruit(getRandomLengthName("Orange"), R.drawable.orange_pic);            fruitList.add(orange);            Fruit watermelon = new Fruit(getRandomLengthName("Watermelon"), R.drawable.watermelon_pic);            fruitList.add(watermelon);            Fruit pear = new Fruit(getRandomLengthName("Pear"), R.drawable.pear_pic);            fruitList.add(pear);            Fruit grape = new Fruit(getRandomLengthName("Grape"), R.drawable.grape_pic);            fruitList.add(grape);            Fruit pineapple = new Fruit(getRandomLengthName("Pineapple"), R.drawable.pineapple_pic);            fruitList.add(pineapple);            Fruit strawberry = new Fruit(getRandomLengthName("Strawberry"), R.drawable.strawberry_pic);            fruitList.add(strawberry);            Fruit cherry = new Fruit(getRandomLengthName("Cherry"), R.drawable.cherry_pic);            fruitList.add(cherry);            Fruit mango = new Fruit(getRandomLengthName("Mango"), R.drawable.mango_pic);            fruitList.add(mango);        }    }    private String getRandomLengthName(String name){        Random random=new Random();        int length=random.nextInt(20)+1;        StringBuilder builder=new StringBuilder();        for (int i=0;i<length;i++){            builder.append(name);        }        return builder.toString();    }}

水果类

public class Fruit {    private String name;    private int imageId;    public Fruit(String name, int imageId) {        this.name = name;        this.imageId = imageId;    }    public String getName() {        return name;    }    public int getImageId() {        return imageId;    }}

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