andriod学习 RecyclerView （瀑布流 waterfall）
教程：
简书 Tyhoo_Wu RecyclerView 总结教程
andriod RecyclerView 官方教程
需要item.xml、对象类、对象适配器Adapter类、以及此项目用到的展示类Fragement. 
2.对象适配器Adapter类
package com.example.example1.mywechat;
import android.content.Context;
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 java.util.List;
public class gameAdapter extends RecyclerView.Adapter {
private List list;
private Context context;
private View inflater;
public gameAdapter(List gameList) {
list = gameList;
}
@NonNull
@Override
public gameAdapter.myViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
inflater = LayoutInflater.from(parent.getContext()).inflate(R.layout.item,parent,false);
myViewHolder myViewHolder = new myViewHolder(inflater);
return myViewHolder;
}
@Override
public void onBindViewHolder(@NonNull gameAdapter.myViewHolder holder, int position) {
Game game = list.get(position);
holder.playerImage.setImageResource(game.getImageid());
holder.playerName.setText(game.getName());
}
@Override
public int getItemCount() {
return list.size();
}
class myViewHolder extends RecyclerView.ViewHolder{
View playerView;
ImageView playerImage;
TextView playerName;
public myViewHolder(@NonNull View itemView) {
super(itemView);
playerView = itemView;
playerImage = itemView.findViewById(R.id.imageView);
playerName = itemView.findViewById(R.id.textViewPlayerName);
}
}
}
3. 展示类Fragement
package com.example.example1.mywechat;
import android.os.Bundle;
import android.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.StaggeredGridLayoutManager;
import java.util.ArrayList;
import java.util.List;
/**
* A simple {@link Fragment} subclass.
*/
public class gameFragment extends Fragment {
private List gameList = new ArrayList();
public gameFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.tab01, container, false);
RecyclerView recyclerView = view.findViewById(R.id.recycler_view);
initPayers();
StaggeredGridLayoutManager manager = new StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL);
recyclerView.setLayoutManager(manager);
gameAdapter adapter = new gameAdapter(gameList);
recyclerView.setAdapter(adapter);
return view;
}
private void initPayers() {
for (int i = 0; i < 10; i++) {
Game player_bi = new Game(i,R.drawable.game_1,"risk of rain 2");
gameList.add(player_bi);
Game player_kb = new Game(i,R.drawable.game_2,"prison");
gameList.add(player_kb);
Game player_lbj = new Game(i,R.drawable.game_3,"饥荒");
gameList.add(player_lbj);
Game player_sc = new Game(i,R.drawable.game_4,"植物僵尸");
gameList.add(player_sc);
Game player_kd = new Game(i,R.drawable.game_5,"消消乐");
gameList.add(player_kd);
Game player_dr = new Game(i,R.drawable.game_6,"建岛");
gameList.add(player_dr);
Game player_ga = new Game(i,R.drawable.game_7,"分手厨房");
gameList.add(player_ga);
Game player_jh = new Game(i,R.drawable.game_8,"谁是卧底");
gameList.add(player_jh);
Game player_ad = new Game(i,R.drawable.game_9,"大型魔幻");
gameList.add(player_ad);
}
}
}
4.项目结果
5.项目源码
github 源码
作者：Not-Df
