Android RecyclerView网格布局

一个简单的网格布局activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    tools:context=".MainActivity">

    <android.support.v7.widget.RecyclerView

        android:id="@+id/message_notice_list_item"

        android:layout_width="match_parent"

        android:layout_height="match_parent" />

</android.support.constraint.ConstraintLayout>

message_main_notice_list.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="150dp"
    android:gravity="center"
    android:background="@color/colorAccent"
    android:orientation="vertical"
    android:layout_marginTop="5dp"
    >

    <ImageView
        android:id="@+id/iv_image"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:background="@mipmap/logo"
        android:gravity="center"></ImageView>

    <LinearLayout
        android:layout_width="60dp"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:paddingLeft="5dp">

        <TextView
            android:id="@+id/tv_title"
            android:layout_width="match_parent"
            android:layout_height="30dp"
            android:gravity="center"
            android:text="BIBIA"></TextView>

    </LinearLayout>

</LinearLayout>

适配器MyRecyclerViewAdapter.java：

package com.example.administrator.recyclerviewtest;

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.TextView;

import java.util.List;

public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewAdapter.ViewHolder>{

    private List<ItemBean> mList;

    static class ViewHolder extends RecyclerView.ViewHolder{

        View myView;

        ImageView imageView;

        TextView title;

        public ViewHolder(View itemView) {

            super(itemView);

            myView = itemView;

            imageView = (ImageView) itemView.findViewById(R.id.iv_image);

            title = (TextView) itemView.findViewById(R.id.tv_title);

        }

    }

    public MyRecyclerViewAdapter(List<ItemBean> list){

        this.mList = list;

    }

    @Override

    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.message_main_notice_list,null);

        final ViewHolder holder = new ViewHolder(view);

        return holder;

    }

    //将数据绑定到控件上

    @Override

    public void onBindViewHolder(ViewHolder holder, int position) {

        ItemBean bean = mList.get(position);

        holder.imageView.setBackgroundResource(bean.itemImage);

        holder.title.setText(bean.itemTitle);

    }

    @Override

    public int getItemCount() {

        return mList.size();

    }

    //下面两个方法提供给页面刷新和加载时调用

    public void add(List<ItemBean> addMessageList) {

        //增加数据

        int position = mList.size();

        mList.addAll(position, addMessageList);

        notifyItemInserted(position);

    }

    public void refresh(List<ItemBean> newList) {

        //刷新数据

        mList.removeAll(mList);

        mList.addAll(newList);

        notifyDataSetChanged();

    }

}

主方法：

package com.example.administrator.recyclerviewtest;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.support.v7.widget.GridLayoutManager;

import android.support.v7.widget.LinearLayoutManager;

import android.support.v7.widget.RecyclerView;

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

public class MainActivity extends AppCompatActivity {

    private RecyclerView recyclerView;

    private List<ItemBean> list;

    private MyRecyclerViewAdapter myAdapte1r;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        list = new ArrayList<ItemBean>();

        for ( int i=0; i< 19;i++){

            list.add(new ItemBean(

                    R.mipmap.logo,

                    "Hello",

                    new Date().toString()+""

            ));

        }

        myAdapte1r = new MyRecyclerViewAdapter(list);

        recyclerView = (RecyclerView) findViewById(R.id.message_notice_list_item);

        //纵向线性布局

        //LinearLayoutManager layoutManager = new LinearLayoutManager(this);

        //纵向线性布局

        GridLayoutManager layoutManager = new GridLayoutManager(this,2);

        recyclerView.setLayoutManager(layoutManager);

        recyclerView.setAdapter(myAdapte1r);

    }

}

效果：