RecyclerView瀑布流的实现方式

public class StaggAdpter extends RecyclerView.Adapter<StaggAdpter.ViewHolder>{
    private Context context;
    private List<String> list;
    private List<Integer> hiehts = new ArrayList<>();

    public StaggAdpter(Context context, List<String> list) {
        this.context = context;
        this.list = list;
        for(int i = 0;i<list.size();i++){
            hiehts.add((int) (Math.random()*400+300));
        }
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
        ViewHolder holder = new ViewHolder(LinearLayout.inflate(context, R.layout.list1, null));
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder viewHolder, int i) {
        ViewGroup.LayoutParams params = viewHolder.textView.getLayoutParams();
        params.height  = hiehts.get(i);
        viewHolder.textView.setBackgroundColor(Color.rgb((int) (Math.random()*100+150),(int) (Math.random()*100+150),(int) (Math.random()*100+150)));
        viewHolder.textView.setText(list.get(i));
    }

    @Override
    public int getItemCount() {
        return list==null?0:list.size();
    }

    class ViewHolder extends RecyclerView.ViewHolder{
        public TextView textView;
        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            textView = itemView.findViewById(R.id.textView);
        }
    }
}

 

 

public class TwoActivity extends AppCompatActivity {
   RecyclerView recyclerView;
   StaggAdpter adpter;
   private List<String> list = new ArrayList<>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_two);
        recyclerView = findViewById(R.id.re);
        for (int i = 0;i<100;i++){
            list.add("失误");
        }
        recyclerView.setLayoutManager(new StaggeredGridLayoutManager(3, OrientationHelper.VERTICAL));
        adpter = new StaggAdpter(this,list);
        recyclerView.setAdapter(adpter);
    }
    public void add(View view){
        list.add(5,"呵呵");
        adpter.notifyItemInserted(5);
    }
    public void remove(View view){
        list.add(5,"呵呵");
        adpter.notifyItemRemoved(5);
    }
}

来源：CSDN

作者：qq_41880248

链接：https://blog.csdn.net/qq_41880248/article/details/81381492