Recyclerview (Alternative listview) Usage Introduction

Add the following code in the Build.gradle file

‘com.android.support:cardview-v7:21.0.3‘‘com.android.support:recyclerview-v7:21.0.3‘

case with the same item type

Layout file

<relativelayout xmlns:android="Http://schemas.android.com/apk/res/android"Android:layout_width="Match_parent"android:layout_height="Match_parent"Android:paddingbottom="@dimen/activity_vertical_margin"android:paddingtop="@dimen/activity_vertical_margin"> <android. Support. V7. Widgets. RecyclerviewAndroid:id="@+id/recycler_view"Android:layout_width="Match_parent"android:layout_height="Match_parent"Android:layout_centerhorizontal="true"Android:layout_centervertical="true"/></relativelayout>

Page code

 Public  class oneactivity extends Activity {    PrivateRecyclerview Mrecyclerview; @Overrideprotected voidOnCreate (Bundle savedinstancestate) {Super. OnCreate (Savedinstancestate);        Setcontentview (R.layout.activity_one);        Mrecyclerview = (Recyclerview) Findviewbyid (R.id.recycler_view); Mrecyclerview.setlayoutmanager (NewLinearlayoutmanager ( This));//Here with a linear display similar to the ListView//Mrecyclerview.setlayoutmanager (new Gridlayoutmanager (this, 2));//Here is a linear Gongge display similar to Grid view//Mrecyclerview.setlayoutmanager (New Staggeredgridlayoutmanager (3, orientationhelper.vertical));//This shows the class with a linear Gongge Like a waterfall in the streamMrecyclerview.setadapter (NewRecyclerviewadapter ( This)); }//recyclerview Adapter     Public  class recyclerviewadapter extends recyclerview. Adapter<recyclerview. Viewholder> {        PrivateContext Mcontext;PrivateLayoutinflater Mlayoutinflater;PrivateString[] Mcityname; PublicRecyclerviewadapter (Context mcontext) { This. Mcontext = Mcontext;            Mlayoutinflater = Layoutinflater.from (Mcontext);        Mcityname = Mcontext.getresources (). Getstringarray (R.array.city_name); }//Create new Viewholder, called by LayoutManager@Override PublicRecyclerview.viewholder Oncreateviewholder (viewgroup parent,intViewType) {return NewRecyclerviewviewholder (Mlayoutinflater.inflate (R.layout.item_text, parent,false)); }//Actions to bind data to the interface@Override Public voidOnbindviewholder (Recyclerview.viewholder holder,intPosition) {((recyclerviewviewholder) holder). Mtextview.settext (Mcityname[position]); }//Get the number of data@Override Public intGetItemCount () {returnMcityname = =NULL?0: Mcityname.length; }//Custom Viewholder, holding all interface elements for each item         Public  class recyclerviewviewholder extends recyclerview. Viewholder {TextView Mtextview; PublicRecyclerviewviewholder (View itemview) {Super(Itemview);                Mtextview = (TextView) Itemview.findviewbyid (r.id.tv_city); Mtextview.setonclicklistener (NewView.onclicklistener () {@Override Public voidOnClick (View v) {toastutil.show (Mcontext, getPosition () +"");            }                }); }        }    }}

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case with different item types

Set up the adapter code

//recyclerview Adapter Public  class multiplerecyclerviewadapter extends recyclerview. Adapter<recyclerview. Viewholder> {    PrivateContext Mcontext;PrivateLayoutinflater Mlayoutinflater; Public Static enumItem_type {item_type_image, item_type_text} PublicMultiplerecyclerviewadapter (Context mcontext) { This. Mcontext = Mcontext;    Mlayoutinflater = Layoutinflater.from (Mcontext); }//Create new Viewholder, called by LayoutManager@Override PublicRecyclerview.viewholder Oncreateviewholder (viewgroup parent,intViewType) {if(ViewType = = Item_type. Item_type_text.ordinal ()) {return NewTextviewviewholder (Mlayoutinflater.inflate (R.layout.item_text, parent,false)); }Else{return NewImageviewviewholder (Mlayoutinflater.inflate (r.layout.item_image, parent,false)); }    }//Actions to bind data to the interface@Override Public voidOnbindviewholder (Recyclerview.viewholder holder,intPosition) {}//Get the number of data@Override Public intGetItemCount () {return Ten; }//item Type@Override Public intGetitemviewtype (intPosition) {returnPosition%2==0? Item_type. Item_type_text.ordinal (): Item_type.    Item_type_image.ordinal (); }//itemholder Type one     Public  class textviewviewholder extends recyclerview. Viewholder {TextView Mtextview; PublicTextviewviewholder (View itemview) {Super(Itemview);        Mtextview = (TextView) Itemview.findviewbyid (r.id.tv_city); }    }//itemholder Type two     Public  class imageviewviewholder extends recyclerview. Viewholder {ImageView Mimageview; PublicImageviewviewholder (View itemview) {Super(Itemview);        Mimageview = (ImageView) Itemview.findviewbyid (r.id.iv_city); }    }}

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Recyclerview (Alternative listview) Usage Introduction