Android Studio 2 - 6 RecyclerView多布局的实现

布局

主布局

<?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=".MainActivity">

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyclerView_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></androidx.recyclerview.widget.RecyclerView>

</LinearLayout>

小布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <!--android:scaleType="fitXY"-->
    <ImageView
        android:id="@+id/iv_item_image"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/tv_item_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

主类

package com.example.day07recyclerview;

import android.content.Intent;
import android.media.audiofx.DynamicsProcessing;
import android.os.Bundle;
import android.util.Log;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.StaggeredGridLayoutManager;

import com.example.day07recyclerview.adapter.AdapterRV;
import com.example.day07recyclerview.entity.Bean;
import com.example.day07recyclerview.inter.MyItemOnClickListener;
import com.google.gson.Gson;
import com.lzy.okgo.OkGo;
import com.lzy.okgo.callback.StringCallback;
import com.lzy.okgo.model.Response;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "MainActivity";
    private String urlStr = "https://www.apiopen.top/satinApi?type=1&page=2";

    private RecyclerView recyclerView_main;
    private List<Bean.DataBean> beanList = new ArrayList<>();
    private AdapterRV adapterRV;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
        initData();
    }

    private void initData() {
        OkGo.<String>get(urlStr).execute(new StringCallback() {
            @Override
            public void onSuccess(Response<String> response) {
                String json = response.body();
                Log.i(TAG, "onSuccess: " + json);
                List<Bean.DataBean> data = new Gson().fromJson(json, Bean.class).getData();
                beanList.addAll(data);
                adapterRV.notifyDataSetChanged();
            }
        });
    }

    private void initView() {
        recyclerView_main = (RecyclerView) findViewById(R.id.recyclerView_main);
        adapterRV = new AdapterRV(this, beanList);
        recyclerView_main.setAdapter(adapterRV);
        //记得设置一种样式 不然为空白
//        recyclerView_main.setLayoutManager(new LinearLayoutManager(this));//线性布局
        recyclerView_main.setLayoutManager(new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));//瀑布流

        adapterRV.setMyItemOnClickListener(new MyItemOnClickListener() {
            @Override
            public void ItemOnClick(int i) {
                Intent intent = new Intent(MainActivity.this, Main2Activity.class);
                intent.putExtra("video",beanList.get(i).getVideouri());
                startActivity(intent);
            }
        });

    }
}

第二页

package com.example.day07recyclerview;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.widget.Toast;
import android.widget.VideoView;

public class Main2Activity extends AppCompatActivity {

    private VideoView vvMain2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        Intent intent = getIntent();
        String video = intent.getStringExtra("video");
        Toast.makeText(this, ""+video, Toast.LENGTH_SHORT).show();

        vvMain2 = (VideoView) findViewById(R.id.vv_main2);

        //设置资源
        vvMain2.setVideoPath(video); //网络或者本地职员
        //准备
        vvMain2.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mediaPlayer) {
                //播放
                vvMain2.start();
            }
        });

    }
}

接口

package com.example.day07recyclerview.inter;

public interface MyItemOnClickListener {
    void ItemOnClick(int i);
}

适配器

package com.example.day07recyclerview.adapter;

import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.bumptech.glide.Glide;
import com.example.day07recyclerview.Main2Activity;
import com.example.day07recyclerview.R;
import com.example.day07recyclerview.entity.Bean;
import com.example.day07recyclerview.inter.MyItemOnClickListener;

import java.util.List;

//TODO 泛型加入自己的ViewHoder

public class AdapterRV extends RecyclerView.Adapter<AdapterRV.ViewHoderRV> {

    private Context context;
    private List<Bean.DataBean> beanList;
    private MyItemOnClickListener myItemOnClickListener;

    public void setMyItemOnClickListener(MyItemOnClickListener myItemOnClickListener) {
        this.myItemOnClickListener = myItemOnClickListener;
    }

    public AdapterRV(Context context, List<Bean.DataBean> beanList) {
        this.context = context;
        this.beanList = beanList;
    }

    //创建Viewhoder

    @NonNull
    @Override
    public ViewHoderRV onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(context).inflate(R.layout.layout_item, parent, false);
        return new ViewHoderRV(view);
    }

    //绑定数据

    @Override
    public void onBindViewHolder(@NonNull ViewHoderRV holder, final int position) {
        holder.textView.setText(beanList.get(position).getText());
        Glide.with(context).load(beanList.get(position).getImage1()).into(holder.imageView);
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
//                Intent intent = new Intent(context, Main2Activity.class);
//                context.startActivity(intent);
                myItemOnClickListener.ItemOnClick(position);
            }
        });
    }

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


    //TODO 创建视图持有者
    class ViewHoderRV extends RecyclerView.ViewHolder{

        TextView textView;
        ImageView imageView;

        public ViewHoderRV(@NonNull View itemView) {
            super(itemView);
            textView = itemView.findViewById(R.id.tv_item_title);
            imageView = itemView.findViewById(R.id.iv_item_image);
        }
    }

}