Android Studio [RecyclerView/瀑布流显示]

PuRecyclerViewActivity.java

package com.xdw.a122.recyclerview;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.support.v7.widget.RecyclerView;

import android.support.v7.widget.StaggeredGridLayoutManager;

import android.widget.Toast;

import com.xdw.a122.R;

public class PuRecyclerViewActivity extends AppCompatActivity {

    private RecyclerView mRvPu;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_pu_recycler_view);

        mRvPu=findViewById(R.id.rv_pu);

        mRvPu.setLayoutManager(new StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL)); //水平每行两列

        mRvPu.setAdapter(new StaggeredGridAdapter(PuRecyclerViewActivity.this, new StaggeredGridAdapter.OnItemClickListener() { //接口

            @Override

            public void onClick(int pos) {  //监听器

                Toast.makeText(PuRecyclerViewActivity.this,"Click"+pos,Toast.LENGTH_SHORT).show();

            }

        }));

    }

}

StaggeredGridAdapter.java

package com.xdw.a122.recyclerview;

import android.content.Context;

import android.support.annotation.NonNull;

import android.support.v7.widget.RecyclerView;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.ImageView;

import android.widget.TextView;

import com.xdw.a122.R;

public class StaggeredGridAdapter extends RecyclerView.Adapter<StaggeredGridAdapter.LinearViewHolder> {

    private Context mContext;

    private OnItemClickListener mlistener;  //分配空间

    //private List<String> list;

    public StaggeredGridAdapter(Context context, OnItemClickListener listener){

        this.mContext=context;             //内容

        this.mlistener=listener;          //传输位置

    }

    @NonNull

    @Override

    public StaggeredGridAdapter.LinearViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {

        return new LinearViewHolder(LayoutInflater.from(mContext).inflate(R.layout.layout_staggered_grid_recyclerview_item,viewGroup,false));

    }

    @Override

    public void onBindViewHolder(@NonNull StaggeredGridAdapter.LinearViewHolder viewHolder, final int i) {

        if(i % 2 !=0){

            viewHolder.imageView.setImageResource(R.drawable.back_2);  //位置为奇数

        }

        else{

            viewHolder.imageView.setImageResource(R.drawable.back_3); //内容

        }

        viewHolder.itemView.setOnClickListener(new View.OnClickListener() {  //监听器按键

            @Override

            public void onClick(View v) {

                mlistener.onClick(i);       //监听器

            }

        });

    }

    @Override

    public int getItemCount() {

        return 80;

    }

    class LinearViewHolder extends RecyclerView.ViewHolder{

        public ImageView imageView;

        public LinearViewHolder(@NonNull View itemView) {

            super(itemView);

            imageView=itemView.findViewById(R.id.iv);

        }

    }

    public interface OnItemClickListener{  //字节型监听器

        void onClick(int pos);

    }

}

activity_pu_recycler_view.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".recyclerview.PuRecyclerViewActivity">

<android.support.v7.widget.RecyclerView

    android:id="@+id/rv_pu"

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    android:background="@color/black"></android.support.v7.widget.RecyclerView>

</LinearLayout>

activity_staggered_grid_recyclerview_item.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:background="@color/white"

    >

    <ImageView

        android:id="@+id/iv"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:scaleType="centerCrop"/>

</LinearLayout>

结果：

Android Studio [RecyclerView/瀑布流显示]的相关教程结束。