Android中RecyclerView上拉下拉,分割线，多条目的实例代码
//activity的xml
<?xmlversion="1.0"encoding="utf-8"?>
<RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="baway.com.cj.myrecyclerview2.MainActivity">
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipeRefreshLayout"
android:layout_width="match_parent"
android:layout_above="@+id/progress"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v7.widget.RecyclerView>
</android.support.v4.widget.SwipeRefreshLayout>
<ProgressBar
android:id="@+id/progress"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:visibility="gone"
android:layout_alignParentBottom="true"/>
</RelativeLayout>
item1的xml和item2的xml就一个背景颜色不同
<?xmlversion="1.0"encoding="utf-8"?>
<RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f00000"
tools:context="baway.com.cj.myrecyclerview2.MainActivity">
<TextView
android:id="@+id/name"
android:layout_width="match_parent"
android:layout_height="50dp"
android:textSize="20sp"
android:gravity="center"
android:textColor="#00ff00"/>
</RelativeLayout>
item2
<?xmlversion="1.0"encoding="utf-8"?>
<RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f000ff"
tools:context="baway.com.cj.myrecyclerview2.MainActivity">
<TextView
android:id="@+id/name"
android:layout_width="match_parent"
android:layout_height="50dp"
android:textSize="20sp"
android:gravity="center"
android:textColor="#00ff00"/>
</RelativeLayout>
//activity,有上啦下拉，添加分割线，
packagebaway.com.cj.myrecyclerview2;
importandroid.graphics.Color;
importandroid.os.Handler;
importandroid.support.v4.widget.SwipeRefreshLayout;
importandroid.support.v7.app.AppCompatActivity;
importandroid.os.Bundle;
importandroid.support.v7.widget.DefaultItemAnimator;
importandroid.support.v7.widget.LinearLayoutManager;
importandroid.support.v7.widget.RecyclerView;
importandroid.util.Log;
importandroid.view.View;
importandroid.widget.ProgressBar;
importandroid.widget.Toast;
importjava.util.ArrayList;
publicclassMainActivityextendsAppCompatActivity{
privateRecyclerViewrecyclerView;
privateMainAdaptermainAdapter;
privateSwipeRefreshLayoutswipeRefreshLayout;
privateLinearLayoutManagerlinearLayoutManager;
privateProgressBarprogress;
@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
initData();
}
privatevoidinitView(){
recyclerView=(RecyclerView)findViewById(R.id.recyclerView);
swipeRefreshLayout=(SwipeRefreshLayout)findViewById(R.id.swipeRefreshLayout);
progress=(ProgressBar)findViewById(R.id.progress);
linearLayoutManager=newLinearLayoutManager(this);
recyclerView.setLayoutManager(linearLayoutManager);
mainAdapter=newMainAdapter(this);
mainAdapter.setOnClickListener(newMyItemOnClickListener(){
@Override
publicvoidonItemClick(Viewview,intposition){
Toast.makeText(MainActivity.this,""+position,Toast.LENGTH_SHORT).show();
}
});
recyclerView.setAdapter(mainAdapter);
recyclerView.addItemDecoration(newMyItemDecoration());
recyclerView.setItemAnimator(newDefaultItemAnimator());
swipeRefreshLayout.setColorSchemeColors(Color.RED,Color.GREEN,Color.BLUE);
swipeRefreshLayout.setProgressViewOffset(true,0,200);
swipeRefreshLayout.setOnRefreshListener(newSwipeRefreshLayout.OnRefreshListener(){
@Override
publicvoidonRefresh(){
newHandler().postDelayed(newRunnable(){
@Override
publicvoidrun(){
swipeRefreshLayout.setRefreshing(false);
}
},3000);
}
});
recyclerView.addOnScrollListener(newRecyclerView.OnScrollListener(){
@Override
publicvoidonScrolled(RecyclerViewrecyclerView,intdx,intdy){
super.onScrolled(recyclerView,dx,dy);
intlastVisibleItemPosition=linearLayoutManager.findLastVisibleItemPosition();
intitemCount=linearLayoutManager.getItemCount();
if(lastVisibleItemPosition+1>=itemCount&&dy>0){
progress.setVisibility(View.VISIBLE);
newHandler().postDelayed(newRunnable(){
@Override
publicvoidrun(){
progress.setVisibility(View.GONE);
}
},3000);
}
}
@Override
publicvoidonScrollStateChanged(RecyclerViewrecyclerView,intnewState){
super.onScrollStateChanged(recyclerView,newState);
}
});
}
privatevoidinitData(){
ArrayList<String>strings=newArrayList<>();
for(inti=0;i<50;i++){
strings.add("name"+i);
}
mainAdapter.setData(strings);
mainAdapter.notifyDataSetChanged();
}
}
//adpter有多条目展示
packagebaway.com.cj.myrecyclerview2;
importandroid.content.Context;
importandroid.support.v7.widget.RecyclerView;
importandroid.view.LayoutInflater;
importandroid.view.View;
importandroid.view.ViewGroup;
importandroid.widget.TextView;
importjava.util.ArrayList;
/**
*Createdbycjon2017/1/12.
*/
publicclassMainAdapterextendsRecyclerView.Adapter{
privateContextcontext;
privateArrayList<String>datas=newArrayList<>();
privateMyItemOnClickListenermyItemOnClickListener;
privatefinalintTYPE_0=0;
privatefinalintTYPE_1=1;
publicMainAdapter(Contextcontext){
this.context=context;
}
@Override
publicintgetItemViewType(intposition){
if(position%3==0){
returnTYPE_0;
}else{
returnTYPE_1;
}
}
publicvoidsetOnClickListener(MyItemOnClickListeneronClickListener){
this.myItemOnClickListener=onClickListener;
}
@Override
publicRecyclerView.ViewHolderonCreateViewHolder(ViewGroupparent,intviewType){
if(viewType==TYPE_0){
Viewinflate=LayoutInflater.from(context).inflate(R.layout.item_main,null);
returnnewMyViewHolder(inflate);
}else{
Viewinflate=LayoutInflater.from(context).inflate(R.layout.item_main2,null);
returnnewMyViewHolder2(inflate);
}
}
@Override
publicvoidonBindViewHolder(RecyclerView.ViewHolderholder,finalintposition){
if(getItemViewType(position)==TYPE_0){
MyViewHoldermyViewHolder=(MyViewHolder)holder;
myViewHolder.name.setText(datas.get(position));
myViewHolder.name.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewv){
myItemOnClickListener.onItemClick(v,position);
}
});
}else{
MyViewHolder2myViewHolder=(MyViewHolder2)holder;
myViewHolder.name.setText(datas.get(position));
myViewHolder.name.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewv){
myItemOnClickListener.onItemClick(v,position);
}
});
}
}
@Override
publicintgetItemCount(){
returndatas.size();
}
publicvoidsetData(ArrayList<String>data){
if(data==null){
return;
}
this.datas.addAll(data);
}
publicclassMyViewHolderextendsRecyclerView.ViewHolder{
publicTextViewname;
publicMyViewHolder(ViewitemView){
super(itemView);
name=(TextView)itemView.findViewById(R.id.name);
}
}
publicclassMyViewHolder2extendsRecyclerView.ViewHolder{
publicTextViewname;
publicMyViewHolder2(ViewitemView){
super(itemView);
name=(TextView)itemView.findViewById(R.id.name);
}
}
}
//自定义分割线继承系统的RecyclerView.ItemDecoration
packagebaway.com.cj.myrecyclerview2;
importandroid.graphics.Canvas;
importandroid.graphics.Color;
importandroid.graphics.Paint;
importandroid.graphics.Rect;
importandroid.support.v7.widget.RecyclerView;
importandroid.util.Log;
importandroid.view.View;
/**
*Createdbycjon2017/1/12.
*/
publicclassMyItemDecorationextendsRecyclerView.ItemDecoration{
privatePaintpaint;
publicMyItemDecoration(){
paint=newPaint();
paint.setColor(Color.BLUE);
}
@Override
publicvoidonDraw(Canvasc,RecyclerViewparent,RecyclerView.Statestate){
super.onDraw(c,parent,state);
//c.drawCircle(300,300,300,paint);
intchildCount=parent.getChildCount();
for(inti=0;i<childCount;i++){
ViewchildAt=parent.getChildAt(i);
c.drawRect(childAt.getLeft(),childAt.getBottom(),childAt.getWidth()+childAt.getLeft(),childAt.getBottom()+5,paint);
}
}
@Override
publicvoidonDrawOver(Canvasc,RecyclerViewparent,RecyclerView.Statestate){
super.onDrawOver(c,parent,state);
//intchildCount=parent.getChildCount();
//for(inti=0;i<childCount;i++){
//ViewchildAt=parent.getChildAt(i);
//c.drawRect(childAt.getLeft(),childAt.getTop(),childAt.getWidth()+childAt.getLeft(),childAt.getBottom()+5,paint);
//}
}
@Override
publicvoidgetItemOffsets(RectoutRect,Viewview,RecyclerViewparent,RecyclerView.Statestate){
super.getItemOffsets(outRect,view,parent,state);
outRect.set(20,0,20,5);
}
}
以上所述是小编给大家介绍的Android中RecyclerView上拉下拉,分割线，多条目的实例代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对毛票票网站的支持！