android recyclerView适配器adpter

1、注入依赖
allprojects {
repositories {
google()
//jcenter()
maven { url ‘https://maven.aliyun.com/repository/google’ }
maven { url ‘https://maven.aliyun.com/repository/jcenter’ }
maven { url ‘http://maven.aliyun.com/nexus/content/groups/public/’ }

  maven { url "https://jitpack.io" }//第三方

}

}
app：

 //adpter適配器
        implementation 'com.github.CymChad:BaseRecyclerViewAdapterHelper:2.9.22'
        //可实现瀑布流
        implementation 'com.android.support:recyclerview-v7:28.0.0'

2、Activity中使用
package com.example.administrator.baserecyclerviewadapterhelper;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.widget.Toast;

import com.chad.library.adapter.base.BaseQuickAdapter;

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

public class MainActivity extends AppCompatActivity {

private RecyclerView recyclerView;
private List<Model> datas;
private MyAdapter adapter;

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

    //初始化RecyclerView
    recyclerView = (RecyclerView) findViewById(R.id.recycler_view);

    //模拟的数据（实际开发中一般是从网络获取的）
    datas = new ArrayList<>();
    Model model;
    for (int i = 0; i < 15; i++) {
        model = new Model();
        model.setTitle("我是第" + i + "条标题");
        model.setContent("第" + i + "条内容");
        datas.add(model);
    }

    //创建布局管理
    LinearLayoutManager layoutManager = new LinearLayoutManager(this);
    layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
    recyclerView.setLayoutManager(layoutManager);

    //创建适配器
    adapter = new MyAdapter(R.layout.item_mian, datas);

    //给RecyclerView设置适配器
    recyclerView.setAdapter(adapter);

    //条目子控件点击事件
    adapter.setOnItemChildClickListener(new BaseQuickAdapter.OnItemChildClickListener() {
        @Override
        public void onItemChildClick(BaseQuickAdapter adapter, View view, int position) {
            //判断id
            if (view.getId() == R.id.iv_img) {
                Log.i("tag", "点击了第" + position + "条条目的 图片");
            } else if (view.getId() == R.id.tv_title) {
                Log.i("tag", "点击了第" + position + "条条目的 标题");
            }
        }
    });
    //条目长按事件（和条目子控件点击事件类似）
    adapter.setOnItemLongClickListener(new BaseQuickAdapter.OnItemLongClickListener() {
        @Override
        public boolean onItemLongClick(BaseQuickAdapter adapter, View view, int position) {

            Toast.makeText(MainActivity.this, "长按了第" + (position + 1) + "条条目", Toast.LENGTH_SHORT).show();
            return false;
        }
    });

}

}

3、adpter
package com.example.administrator.baserecyclerviewadapterhelper;

import android.support.annotation.LayoutRes;
import android.support.annotation.Nullable;

import com.chad.library.adapter.base.BaseQuickAdapter;
import com.chad.library.adapter.base.BaseViewHolder;

import java.util.List;

public class MyAdapter extends BaseQuickAdapter<Model, BaseViewHolder> {

public MyAdapter(@LayoutRes int layoutResId, @Nullable List<Model> data) {
    super(layoutResId, data);
}

@Override
protected void convert(BaseViewHolder helper, Model item) {
    //可链式调用赋值
    helper.setText(R.id.tv_title, item.getTitle())
            .setText(R.id.tv_content, item.getContent())
            .addOnClickListener(R.id.iv_img)    //给图标添加 点击事件
            .addOnClickListener(R.id.tv_title) //给标题也添加 点击事件
            //.addOnLongClickListener(R.id.tv_title)
            .setImageResource(R.id.iv_img, R.mipmap.ic_launcher);
    //获取当前条目position
    //int position = helper.getLayoutPosition();
    }
}

4、添加特效

//开启动画（默认为渐显效果）
adapter.openLoadAnimation();

详情网站
https://www.jianshu.com/p/1e20f301272e

android recyclerView适配器adpter

猜你喜欢