新空间RecycleView复习

最新推荐文章于 2024-04-22 11:47:18 发布

江南一舟110

最新推荐文章于 2024-04-22 11:47:18 发布

阅读量620

点赞数

CC 4.0 BY-SA版权

分类专栏： android 文章标签： Recycleview Listview

本文链接：https://blog.youkuaiyun.com/qq_30519365/article/details/52021570

android 专栏收录该内容

102 篇文章

订阅专栏

本文介绍了一个使用 Android RecyclerView 控件结合 GridLayoutManager 布局管理器的示例应用。该应用展示了如何通过自定义适配器实现图片加载及点击事件监听等功能。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

package com.example.gsc.xinkongjian;

import android.app.Activity;
import android.os.Bundle;
import android.support.v7.widget.GridLayoutManager;
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.Toast;

import com.squareup.picasso.Picasso;

/**
 * Created by Administrator on 2016/7/25.
 */
public class TestActivity extends Activity {
    private RecyclerView rv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_test);
        rv = (RecyclerView) findViewById(R.id.rv);
        // rv.setLayoutParams(new StaggeredGridLayoutManager.LayoutParams(3, RecyclerView.HORIZONTAL));
        //rv.setLayoutManager(new StaggeredGridLayoutManager(3,RecyclerView.HORIZONTAL));
        // rv.setLayoutManager(new LinearLayoutManager(this));
        rv.setLayoutManager(new GridLayoutManager(this, 2));
        MyAdapter myadapter = new MyAdapter();
        myadapter.setListeners(new MyRecycleItemListeners() {
            @Override
            public void onItemclilck(View v, int postation) {
                Toast.makeText(getApplication(), "你点击的是" + postation, 0).show();
            }

            @Override
            public void onLongClick(View v, int postation) {
                Toast.makeText(getApplication(), "你长点击的是" + postation, 0).show();
            }
        });
        rv.setAdapter(myadapter);
    }

    class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
        MyRecycleItemListeners listeners;

        public void setListeners(MyRecycleItemListeners listeners) {
            this.listeners = listeners;
        }

        @Override
        public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            // View v = View.inflate(parent.getContext(), R.layout.items_rv, null);
            View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.items_rv, parent, false);
            // ImageView imageView = (ImageView) v.findViewById(R.id.iv);
            ViewHolder vh = new ViewHolder(v);

            return vh;
        }

        @Override
        public void onBindViewHolder(final ViewHolder holder, final int position) {
            if (listeners != null) {
                holder.miv.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        listeners.onItemclilck(holder.miv, holder.getLayoutPosition());
                    }
                });
                holder.miv.setOnLongClickListener(new View.OnLongClickListener() {
                    @Override
                    public boolean onLongClick(View v) {
                        listeners.onLongClick(holder.miv, holder.getLayoutPosition());
                        return false;
                    }
                });
            }
            Picasso.with(TestActivity.this).load(MyConstacts.urls[position]).into(holder.miv);
        }

        @Override
        public int getItemCount() {
            return MyConstacts.urls.length;
        }

        public class ViewHolder extends RecyclerView.ViewHolder {
            public ImageView miv;

            public ViewHolder(View itemView) {
                super(itemView);
                miv = (ImageView) itemView.findViewById(R.id.iv);
            }
        }
    }
}