基于RecyclerView实现横向GridView效果
作者：duxiaxing
这篇文章主要为大家详细介绍了基于RecyclerView实现横向GridView效果，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了RecyclerView实现横向GridView效果展示的具体代码，供大家参考，具体内容如下
要使用RecyclerView，首先要在build.gradle文件中添加依赖compile 'com.android.support:appcompat-v7:24.1.0'
效果图
布局如下
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.dxx.recycleviewtestdemo.MainActivity"> <android.support.v7.widget.RecyclerView android:id="@+id/rv" android:layout_width="match_parent" android:layout_height="200dp" android:layout_margin="20dp"/> </RelativeLayout>
使用方法:
package com.dxx.recycleviewtestdemo;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
RecyclerView rv = (RecyclerView) findViewById(R.id.rv);
rv.setLayoutManager(new LinearLayoutManager(this,LinearLayoutManager.HORIZONTAL,false));//设置布局管理器
rv.setAdapter(new MyRVAdapter(this));
}
}
其Adapter要继承RecyclerView.Adapter,在Adapter中药先定义ViewHolder，并继承RecyclerView.ViewHolder;如：
public class ViewHolder extends RecyclerView.ViewHolder{
public ViewHolder(View itemView) {
super(itemView);
}
ImageView rv_item_image;
TextView rv_item_tv;
}
在onCreateViewHolder进行初始化操作，在onBindViewHolder中对各种事件进行处理,getItemCount返回的是 RecyclerView的长度，其布局与代码如下：
<?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="wrap_content"
android:gravity="center"
android:layout_marginLeft="18dp"
android:layout_marginBottom="5dp"
android:orientation="vertical">
<ImageView
android:id="@+id/rv_item_image"
android:layout_width="82dp"
android:layout_height="82dp"
android:scaleType="centerCrop"
android:src="@drawable/shiqikuangsan"/>
<TextView
android:id="@+id/rv_item_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="9dp"
android:textSize="15sp"/>
</LinearLayout>
package com.dxx.recycleviewtestdemo;
import android.content.Context;
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;
/**
* Created by duxiaxing on 2016/7/27.
*/
public class MyRVAdapter extends RecyclerView.Adapter<MyRVAdapter.ViewHolder> {
private Context context;
public MyRVAdapter(Context context){
this.context = context;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context).inflate(R.layout.layout_rv_item,parent,false);
ViewHolder holder = new ViewHolder(view);
holder.rv_item_image = (ImageView) view.findViewById(R.id.rv_item_image);
holder.rv_item_tv = (TextView) view.findViewById(R.id.rv_item_tv);
return holder;
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
holder.rv_item_tv.setText(position + "");
}
@Override
public int getItemCount() {
return 9;
}
public class ViewHolder extends RecyclerView.ViewHolder{
public ViewHolder(View itemView) {
super(itemView);
}
ImageView rv_item_image;
TextView rv_item_tv;
}
}
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脚本之家。