RecyclerView多條目

1.adapter

public class RecyclerAdapter extends RecyclerView.Adapter {
private Context context;
private List<JsonBean.ResultBean.DataBean> list;

public RecyclerAdapter(Context context, List<JsonBean.ResultBean.DataBean> list) {
    this.context = context;
    this.list = list;
}

@NonNull
@Override
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int viewtype) {
    View view=null;
    RecyclerView.ViewHolder viewHolder =null;
    switch (viewtype){
        case 0:
            view = View.inflate(context,R.layout.rec1,null);
            viewHolder = new MyViewHolder(view);
            break;
        case 1:
            view = View.inflate(context,R.layout.rec2,null);
            viewHolder = new MyViewHolder2(view);
            break;
        case 2:
            view = View.inflate(context,R.layout.rec3,null);
            viewHolder = new MyViewHolder3(view);
            break;
    }
    return viewHolder;
}

@Override
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder viewHolder, final int i) {
    if (viewHolder instanceof MyViewHolder){
        ((MyViewHolder)viewHolder).textView1.setText(list.get(i).getTitle());
        ((MyViewHolder)viewHolder).textView2.setText(list.get(i).getAuthor_name());
        ((MyViewHolder)viewHolder).textView3.setText(list.get(i).getDate());
    }else if (viewHolder instanceof MyViewHolder2){
        ((MyViewHolder2)viewHolder).textView21.setText(list.get(i).getTitle());
        ((MyViewHolder2)viewHolder).textView22.setText(list.get(i).getAuthor_name());
        ((MyViewHolder2)viewHolder).textView23.setText(list.get(i).getDate());
        Glide.with(context).load(list.get(i).getThumbnail_pic_s()).into(((MyViewHolder2) viewHolder).imageView21);
        ((MyViewHolder2)viewHolder).imageView21.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onItemClickListener.onItemClick(v,i);
            }
        });
    }else {
        ((MyViewHolder3)viewHolder).textView31.setText(list.get(i).getTitle());
        Glide.with(context).load(list.get(i).getThumbnail_pic_s03()).into(((MyViewHolder3) viewHolder).imageView31);
      Glide.with(context).load(list.get(i).getThumbnail_pic_s02()).into(((MyViewHolder3) viewHolder).imageView32);
        Glide.with(context).load(list.get(i).getThumbnail_pic_s()).into(((MyViewHolder3) viewHolder).imageView33);

        ((MyViewHolder3)viewHolder).imageView31.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onItemClickListener.onItemClick(v,i);
            }
        });
    }
}

public void removedata(int position){
    list.remove(position);
    notifyItemRemoved(position);
}

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

public interface OnItemClickListener{
    void onItemClick(View view,int position);
}
private OnItemClickListener onItemClickListener;

public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
    this.onItemClickListener = onItemClickListener;
}

@Override
public int getItemViewType(int position) {
    if (list.get(position).getThumbnail_pic_s03()!=null){
        return 2;
    }else if (list.get(position).getThumbnail_pic_s()!=null){
        return 1;
    }else {
        return 0;
    }
}

private class MyViewHolder extends RecyclerView.ViewHolder{


    private final TextView textView1,textView2,textView3;

    public MyViewHolder(@NonNull View itemView) {
        super(itemView);
        textView1 = itemView.findViewById(R.id.text1);
        textView2 = itemView.findViewById(R.id.text2);
        textView3 = itemView.findViewById(R.id.text3);
        itemView.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                removedata(getAdapterPosition());
                return false;
            }
        });
    }
}
private class MyViewHolder2 extends RecyclerView.ViewHolder{


    private final TextView textView21,textView22,textView23;
    private final ImageView imageView21;

    public MyViewHolder2(@NonNull View itemView) {
        super(itemView);
        textView21 = itemView.findViewById(R.id.text21);
        textView22 = itemView.findViewById(R.id.text22);
        textView23 = itemView.findViewById(R.id.text23);
        imageView21 = itemView.findViewById(R.id.image21);
        ViewGroup.LayoutParams params = imageView21.getLayoutParams();
        //設置控件的寬高
        params.width=(1000)/3;
        params.height =(int)(200+Math.random()*400);
        imageView21.setLayoutParams(params);

        itemView.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                removedata(getAdapterPosition());
                return false;
            }
        });
    }
}
private class MyViewHolder3 extends RecyclerView.ViewHolder{


    private final TextView textView31;
    private ImageView imageView31,imageView32,imageView33;

    public MyViewHolder3(@NonNull View itemView) {
        super(itemView);
        textView31 = itemView.findViewById(R.id.text31);
        imageView31 = itemView.findViewById(R.id.iamge31);
        imageView32 = itemView.findViewById(R.id.iamge32);
        imageView33 = itemView.findViewById(R.id.iamge33);
        imageView31 = itemView.findViewById(R.id.iamge31);
        ViewGroup.LayoutParams params = imageView31.getLayoutParams();
        //設置控件的寬高
        params.width=(1000)/3;
        params.height =(int)(200+Math.random()*400);
        imageView31.setLayoutParams(params);
        itemView.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                removedata(getAdapterPosition());
                return false;
            }
        });
    }
}

}

2.Activity
public class MainActivity extends AppCompatActivity implements OverView {

private String[] imageurl=new String[]{

“http://www.eoeandroid.com/data/attachment/forum/201107/18/142935bbi8d3zpf3d0dd7z.jpg”,
“http://www.eoeandroid.com/data/attachment/forum/201107/18/142935bbi8d3zpf3d0dd7z.jpg”,
“http://www.eoeandroid.com/data/attachment/forum/201107/18/142935bbi8d3zpf3d0dd7z.jpg”

};

private Toolbar toolbar;
private RecyclerView recyclerView;
private LjPresenter ljPresenter;
private List<JsonBean.ResultBean.DataBean> list;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    initView();
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayShowTitleEnabled(false);
    initdata();
    ljPresenter = new LjPresenter(this);
    ljPresenter.show();
}



private void initView() {
    toolbar = findViewById(R.id.toolbar);
    recyclerView = findViewById(R.id.recyclerview);
}
private void initdata() {
    toolbar.setLogo(R.mipmap.ic_launcher);
    toolbar.setTitle("機器人");
    Banner banner =findViewById(R.id.banner);
    banner.setDelayTime(2000);
    banner.setImageLoader(new App());
    banner.setImages(Arrays.asList(imageurl));
    banner.start();

}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()){
        case android.R.id.home:
            finish();
            break;
    }
    return super.onOptionsItemSelected(item);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu,menu);
    return super.onCreateOptionsMenu(menu);
}

@Override
public void OnSuccess(List<JsonBean.ResultBean.DataBean> list) {
    StaggeredGridLayoutManager staggeredGridLayoutManager = new StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL);
    // LinearLayoutManager layoutManager =new LinearLayoutManager(MainActivity.this,LinearLayoutManager.VERTICAL,false);
    recyclerView.setLayoutManager(staggeredGridLayoutManager);
    RecyclerAdapter adapter = new RecyclerAdapter(MainActivity.this,list);
    recyclerView.setAdapter(adapter);
    adapter.setOnItemClickListener(new RecyclerAdapter.OnItemClickListener() {
        @Override
        public void onItemClick(View view, int position) {
            ObjectAnimator alpha = ObjectAnimator.ofFloat(view,"alpha",2,0,2);
            alpha.setDuration(3000);
            alpha.start();
        }
    });
}

@Override
public void OnFailer(String error) {
    Toast.makeText(this, "失敗", Toast.LENGTH_SHORT).show();
}

}