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Android中RecyclerView实现横向滑动代码

2019年07月24日  | 移动技术网IT编程  | 我要评论

哥们傲剑圆月山庄,莫里亚蒂的手机铃声,忆苗轻靓减肥胶囊

 recyclerview 是android l版本中新添加的一个用来取代listview的sdk,它的灵活性与可替代性比listview更好。本文给大家介绍android中recyclerview实现横向滑动代码，一起看看吧。

android.support.v7.widget.recyclerview

功能：recyclerview横向滑动

控件：<android.support.v7.widget.recyclerview />

java类：recyclerview、galleryadapter、list<integer>

1、主界面布局

<?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" 
android:paddingbottom="@dimen/activity_vertical_margin" 
android:paddingleft="@dimen/activity_horizontal_margin" 
android:paddingright="@dimen/activity_horizontal_margin" 
android:paddingtop="@dimen/activity_vertical_margin" 
tools:context="com.info.activity.recycleractivity"> 
<android.support.v7.widget.recyclerview 
android:id="@+id/id_recyclerview_horizontal" 
android:layout_width="match_parent" 
android:layout_height="120dp" 
android:layout_centervertical="true" 
android:background="#ff0000" 
android:scrollbars="none" 
></android.support.v7.widget.recyclerview> 
</relativelayout>

2、子界面布局

<?xml version="1.0" encoding="utf-8"?> 
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="120dp" 
android:layout_height="120dp"> 
<imageview 
android:id="@+id/id_index_gallery_item_image" 
android:layout_width="80dp" 
android:layout_height="80dp" 
android:layout_alignparenttop="true" 
android:layout_centerhorizontal="true" 
android:layout_margin="5dp" 
android:scaletype="centercrop" /> 
<textview 
android:id="@+id/id_index_gallery_item_text" 
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:layout_below="@id/id_index_gallery_item_image" 
android:layout_centerhorizontal="true" 
android:layout_marginbottom="5dp" 
android:layout_margintop="5dp" 
android:textcolor="#000000" 
android:text="some info" 
android:textsize="12dp" /> 
</relativelayout>

3、java代码

package com.info.activity; 
import android.app.activity; 
import android.content.context; 
import android.support.v7.app.appcompatactivity; 
import android.os.bundle; 
import android.support.v7.widget.linearlayoutmanager; 
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.arraylist; 
import java.util.arrays; 
import java.util.list; 
public class recycleractivity extends activity { 
private recyclerview mrecyclerview; 
private galleryadapter madapter; 
private list<integer> mdatas; 
@override 
protected void oncreate(bundle savedinstancestate) { 
super.oncreate(savedinstancestate); 
setcontentview(r.layout.activity_recycler); 
initdatas(); 
//得到控件 
mrecyclerview = (recyclerview) findviewbyid(r.id.id_recyclerview_horizontal); 
//设置布局管理器 
linearlayoutmanager linearlayoutmanager = new linearlayoutmanager(this); 
linearlayoutmanager.setorientation(linearlayoutmanager.horizontal); 
mrecyclerview.setlayoutmanager(linearlayoutmanager); 
//设置适配器 
madapter = new galleryadapter(this, mdatas); 
mrecyclerview.setadapter(madapter); 
} 
private void initdatas() 
{ 
mdatas = new arraylist<>(arrays.aslist(r.drawable.ic_launcher, 
r.drawable.ic_launcher, r.drawable.ic_launcher, r.drawable.ic_launcher, r.drawable.ic_launcher, 
r.drawable.ic_launcher, r.drawable.ic_launcher, r.drawable.ic_launcher, r.drawable.ic_launcher)); 
} 
public class galleryadapter extends 
recyclerview.adapter<galleryadapter.viewholder> 
{ 
private layoutinflater minflater; 
private list<integer> mdatas; 
public galleryadapter(context context, list<integer> datats) 
{ 
minflater = layoutinflater.from(context); 
mdatas = datats; 
} 
public class viewholder extends recyclerview.viewholder 
{ 
public viewholder(view arg0) 
{ 
super(arg0); 
} 
imageview mimg; 
textview mtxt; 
} 
@override 
public int getitemcount() 
{ 
return mdatas.size(); 
} 
/** 
* 创建viewholder 
*/ 
@override 
public viewholder oncreateviewholder(viewgroup viewgroup, int i) 
{ 
view view = minflater.inflate(r.layout.activity_recycler_item, 
viewgroup, false); 
viewholder viewholder = new viewholder(view); 
viewholder.mimg = (imageview) view 
.findviewbyid(r.id.id_index_gallery_item_image); 
return viewholder; 
} 
/** 
* 设置值 
*/ 
@override 
public void onbindviewholder(final viewholder viewholder, final int i) 
{ 
viewholder.mimg.setimageresource(mdatas.get(i)); 
} 
} 
}

以上所述是小编给大家介绍的android中recyclerview实现横向滑动代码，希望对大家有所帮助

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