Android RecyclerView的简单使用

本文实例为大家分享了Android RecyclerView使用的具体代码，供大家参考，具体内容如下

package com.itheima74.recyclerview; 

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView; 

import java.util.ArrayList; 

/**
 * RecyclerView
 * 1.增强版的listview
 * 2.官方推荐
 * 3.使用步骤:
 * a.build.gradle文件中添加依赖compile 'com.android.support:recyclerview-v7:25.2.0'
 * b.xml布局中引入,注意完整包名+类名
 * c.具体见代码
 */
public class MainActivity extends AppCompatActivity { 

 ArrayList<Fruit> mFruitList;
 private RecyclerView recyclerview; 

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

 initView();
 initData();
 initAdapter();
 } 

 /**
 * 初始化数据适配器
 */
 private void initAdapter() {
 recyclerview.setAdapter(new FruitAdapter());
 } 

 /**
 * 初始化控件
 */
 private void initView() {
 recyclerview = (RecyclerView) findViewById(R.id.recyclerview); 

 // 设置为LinearLayoutManager布局方式,线性布局
 // LinearLayoutManager layoutManager = new LinearLayoutManager(this);
 // 两种方式,水平或垂直排布,默认垂直排布
 // layoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
 // recyclerview.setLayoutManager(layoutManager); 

 // 设置为GridLayoutManager布局方式,3列排布
 GridLayoutManager gridLayoutManager = new GridLayoutManager(this,3);
 recyclerview.setLayoutManager(gridLayoutManager);
 } 

 /**
 * 初始化数据,水果集合
 */
 private void initData() {
 mFruitList = new ArrayList<>();
 mFruitList.add(new Fruit("apple", R.drawable.apple_pic));
 mFruitList.add(new Fruit("banana", R.drawable.banana_pic));
 mFruitList.add(new Fruit("cherry", R.drawable.cherry_pic));
 mFruitList.add(new Fruit("grape", R.drawable.grape_pic));
 mFruitList.add(new Fruit("mango", R.drawable.mango_pic));
 mFruitList.add(new Fruit("orange", R.drawable.orange_pic));
 mFruitList.add(new Fruit("pear", R.drawable.pear_pic));
 mFruitList.add(new Fruit("pineapple", R.drawable.pineapple_pic));
 mFruitList.add(new Fruit("strawberry", R.drawable.strawberry_pic));
 mFruitList.add(new Fruit("watermelon", R.drawable.watermelon_pic));
 } 

 class FruitAdapter extends RecyclerView.Adapter<ViewHolder> { 

 // 返回ViewHolder对象
 @Override
 public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
 return new ViewHolder(View.inflate(getApplicationContext(), R.layout.listview_item, null));
 } 

 // 刷新界面,为ViewHolder两个属性设置内容
 @Override
 public void onBindViewHolder(ViewHolder holder, int position) {
 Fruit fruit = mFruitList.get(position);
 holder.iv.setImageResource(fruit.imageId);
 holder.tv.setText(fruit.name);
 } 

 @Override
 public int getItemCount() {
 // FruitAdapter是MainActivity的内部类,可以直接使用外部类的成员变量
 return mFruitList.size();
 }
 } 

 static class ViewHolder extends RecyclerView.ViewHolder {
 ImageView iv;
 TextView tv; 

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

} 

package com.itheima74.recyclerview; 

/**
 * Created by My on 2017/3/2.
 */ 

class Fruit {
 String name;
 int imageId; 

 Fruit(String name, int imageId) {
 this.name = name;
 this.imageId = imageId;
 }
}

代码如下:

<img src="http://img.blog.csdn.net/20170303085928987?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemh1NjIwMTk3Ng==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="">

效果图：

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。