Android 中使用RecyclerView实现底部翻页

概述最近在做pad端的app，需要一个像网页一样效果，之前使用addView方式，页码少的时候还可以，能实现效果，但是碰到了一个1000多页的界面，就GG了，页码半天显示不出来，于是使用RecyclerView作为容器，主要是看中Recyc

最近在做pad端的app，需要一个像网页一样效果，之前使用addVIEw方式，页码少的时候还可以，能实现效果，但是碰到了一个1000多页的界面，就GG了，页码半天显示不出来，于是使用RecyclerVIEw作为容器，主要是看中RecyclerVIEw的复用，不说了，看代码：

BottomPagerVIEw xml布局：

<?xml version="1.0" enCoding="utf-8"?><linearLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"    androID:layout_wIDth="match_parent"    androID:layout_height="wrap_content"    androID:orIEntation="horizontal"> <linearLayout  androID:ID="@+ID/bottom_ll_content"  androID:layout_gravity="center_vertical"  androID:layout_wIDth="match_parent"  androID:layout_height="wrap_content"  androID:gravity="center_vertical"  androID:layout_marginleft="10px"  androID:layout_marginRight="10px"  androID:layout_margintop="10px"  androID:orIEntation="horizontal">  <button   androID:ID="@+ID/pre_page"   androID:layout_wIDth="wrap_content"   androID:layout_height="wrap_content"   androID:layout_marginRight="@dimen/y5"   androID:paddingBottom="@dimen/x4"   androID:paddingleft="@dimen/y5"   androID:paddingRight="@dimen/y5"   androID:paddingtop="@dimen/x4"   androID:text="上一页"   androID:textSize="@dimen/mIDdlesize"/>  <androID.support.v7.Widget.RecyclerVIEw   androID:ID="@+ID/recycler"   androID:layout_wIDth="wrap_content"   androID:layout_height="wrap_content"/>  <button   androID:ID="@+ID/next_page"   androID:layout_wIDth="wrap_content"   androID:layout_height="wrap_content"   androID:layout_marginleft="@dimen/y5"   androID:paddingBottom="@dimen/x4"   androID:paddingleft="@dimen/y5"   androID:paddingRight="@dimen/y5"   androID:paddingtop="@dimen/x4"   androID:text="下一页"   androID:textSize="@dimen/mIDdlesize"/> </linearLayout></linearLayout>

adapter的xml布局：

<?xml version="1.0" enCoding="utf-8"?><linearLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"    androID:orIEntation="vertical"    androID:layout_wIDth="wrap_content"    androID:layout_height="wrap_content"> <Radiobutton  androID:ID="@+ID/bottom_item_rb"  androID:layout_wIDth="wrap_content"  androID:text="1"  androID:gravity="center_vertical"  androID:background="@drawable/tab_select"  androID:layout_height="wrap_content"/></linearLayout>BottomPagerVIEw 代码：public class BottomPagerVIEw extends linearLayout { private final linearLayout ll_content; private int pageSize = 0; private button pre_page; private button next_page; private RecyclerVIEw recycler; private BottomAdapter mBottomAdapter; Context mContent; private boolean mShouldScroll = false; private int mToposition = 0; private int smoothWIDth = 0; public BottomPagerVIEw(Context context) {  this(context,null); } public BottomPagerVIEw(Context context,@Nullable AttributeSet attrs) {  super(context,attrs);  this.mContent = context;  LayoutInflater.from(context).inflate(R.layout.bottom_page,this,true);  ll_content = (linearLayout) findVIEwByID(R.ID.bottom_ll_content);  pre_page = (button) findVIEwByID(R.ID.pre_page);  next_page = (button) findVIEwByID(R.ID.next_page);  recycler = (RecyclerVIEw) findVIEwByID(R.ID.recycler);  /*initVIEw(context);*/ } public BottomPagerVIEw(Context context,@Nullable AttributeSet attrs,int defStyleAttr) {  this(context,attrs); } private int currentPage = 0; public voID initVIEw(final Context context) {  if (pageSize == 0) {   ll_content.setVisibility(INVISIBLE);  } else {   ll_content.setVisibility(VISIBLE);   final List<BottomBean> List = new ArrayList<>();   for (int i = 0; i < pageSize; i++) {    BottomBean bean = new BottomBean();    bean.setposition(i);    if (i == 0) {     bean.setSelect(true);    } else {     bean.setSelect(false);    }    List.add(bean);   }   final linearlayoutmanager manager = new linearlayoutmanager(context);   manager.setorIEntation(linearlayoutmanager.HORIZONTAL);   recycler.setLayoutManager(manager);   int wIDth = 0;   if (pageSize > 8) {    int pixelSize = getResources().getDimensionPixelSize(R.dimen.y6);    wIDth = pixelSize * 10;   } else {    wIDth = LayoutParams.WRAP_CONTENT;   }   LayoutParams params = new LayoutParams(wIDth,VIEwGroup.LayoutParams.WRAP_CONTENT);   recycler.setLayoutParams(params);   mBottomAdapter = new BottomAdapter(context,List);   recycler.setAdapter(mBottomAdapter);   mBottomAdapter.setCurPage(new BottomAdapter.getCurPage() {    @OverrIDe    public voID serCurPage(int p) {     List.get(currentPage).setSelect(false);     List.get(p).setSelect(true);     mBottomAdapter.notifyDataSetChanged();     currentPage = p;     smoothMovetoposition(recycler,p);     recycler.addOnScrollListener(new RecyclerVIEw.OnScrollListener() {      @OverrIDe      public voID onScrollStateChanged(RecyclerVIEw recyclerVIEw,int newState) {       super.onScrollStateChanged(recyclerVIEw,newState);       if (mShouldScroll){        mShouldScroll = false;        smoothMovetoposition(recycler,mToposition);       }      }     });     if (Curpage != null) {      Curpage.serCurPage(p);     }    }   });   pre_page.setonClickListener(new OnClickListener() {    @OverrIDe    public voID onClick(VIEw v) {     if (currentPage > 0) {      int page = currentPage - 1;      List.get(currentPage).setSelect(false);      List.get(page).setSelect(true);      currentPage = page;      mBottomAdapter.notifyDataSetChanged();      smoothMovetoposition(recycler,page);      recycler.addOnScrollListener(new RecyclerVIEw.OnScrollListener() {       @OverrIDe       public voID onScrollStateChanged(RecyclerVIEw recyclerVIEw,int newState) {        super.onScrollStateChanged(recyclerVIEw,newState);        if (mShouldScroll){         mShouldScroll = false;         smoothMovetoposition(recycler,mToposition);        }       }      });      if (Curpage != null) {       Curpage.serCurPage(page);      }     } else {      return;     }    }   });   next_page.setonClickListener(new OnClickListener() {    @OverrIDe    public voID onClick(VIEw v) {     if (currentPage < pageSize - 1) {      List.get(currentPage).setSelect(false);      int page = currentPage + 1;      Log.d("BottomPagerVIEw","onClick: " + page);      List.get(page).setSelect(true);      currentPage = page;      mBottomAdapter.notifyDataSetChanged();      smoothMovetoposition(recycler,mToposition);        }       }      });      if (Curpage != null) {       Curpage.serCurPage(page);      }     } else {      return;     }    }   });  } } public voID setPageSize(int size) {  this.pageSize = size;  initVIEw(mContent); } private getCurPage Curpage; public interface getCurPage {  voID serCurPage(int p); } public voID setCurPage(getCurPage page) {  this.Curpage = page; } private voID smoothMovetoposition(RecyclerVIEw mRecyclerVIEw,final int position) {  int firstItem = mRecyclerVIEw.getChildLayoutposition(mRecyclerVIEw.getChildAt(0));  int lastItem = mRecyclerVIEw.getChildLayoutposition(mRecyclerVIEw.getChildAt(mRecyclerVIEw.getChildCount()-1 ));  Log.d("BottomPagerVIEw","smoothMovetoposition: firstItem"+firstItem+"  lastItem "+lastItem+"  position"+position);  if (position < firstItem) {   mRecyclerVIEw.smoothScrollToposition(position);   mShouldScroll = true;   mToposition = position;  } else if (position <= lastItem) {// 跳转位置在第一个可见项之后，最后一个可见项之前// smoothScrollToposition根本不会动，此时调用smoothScrollBy来滑动到指定位置   int moveposition = position - firstItem;   if (moveposition >= 0 && moveposition <= mRecyclerVIEw.getChildCount()) {    int top = mRecyclerVIEw.getChildAt(moveposition).getleft();    int wIDth = mRecyclerVIEw.getMeasureDWIDth() / 2;    int scroll = top - wIDth+mRecyclerVIEw.getChildAt(moveposition).getMeasureDWIDth()/2;    Log.d("BottomPagerVIEw","smoothMove: "+scroll);    mRecyclerVIEw.smoothScrollBy(scroll,0);   }  } else {   mRecyclerVIEw.smoothScrollToposition(position);   mShouldScroll = true;   mToposition = position;  } }}BottomAdapter adapter：public class BottomAdapter extends RecyclerVIEw.Adapter<BottomAdapter.MyVIEwHolder> { Context mContext; List<BottomBean> size; private boolean isFirst = true; private int currentPage = 0; public BottomAdapter(Context context,List<BottomBean> size) {  this.mContext = context;  this.size = size; } @OverrIDe public MyVIEwHolder onCreateVIEwHolder(VIEwGroup parent,int vIEwType) {  VIEw vIEw = VIEw.inflate(mContext,R.layout.bottom_item,null);  return new MyVIEwHolder(vIEw); } @OverrIDe public voID onBindVIEwHolder(final MyVIEwHolder holder,final int position) {  holder.rb.setbuttonDrawable(null);  holder.rb.setText(position + 1 + "");  holder.rb.setTag(position);  holder.rb.setChecked(size.get(position).isSelect());  holder.rb.setonClickListener(new VIEw.OnClickListener() {   @OverrIDe   public voID onClick(VIEw v) {    if (!size.get((int) holder.rb.getTag()).isSelect()){     Curpage.serCurPage((int) holder.rb.getTag());    }   }  }); } @OverrIDe public int getItemCount() {  return size.size(); } class MyVIEwHolder extends RecyclerVIEw.VIEwHolder {  private final Radiobutton rb;  public MyVIEwHolder(VIEw itemVIEw) {   super(itemVIEw);   rb = (Radiobutton) itemVIEw.findVIEwByID(R.ID.bottom_item_rb);  } } private getCurPage Curpage; public interface getCurPage {  voID serCurPage(int p); } public voID setCurPage(getCurPage page) {  this.Curpage = page; }}

调用：

直接在xml中使用

<BottomPagerVIEw androID:ID="@+ID/part_part_tab" androID:layout_wIDth="wrap_content" androID:layout_below="@+ID/part_part_recycler" androID:layout_height="wrap_content" androID:layout_gravity="center_horizontal" androID:layout_marginBottom="5dp"/>

代码中调用：

初始化：

mBottomPagerVIEw.setPageSize(AllPage);

回调：

mBottomPagerVIEw.setCurPage(new BottomPagerVIEw.getCurPage() { @OverrIDe public voID serCurPage(int p) {  //获取点击的页码数， *** 作 }});

总结

以上所述是小编给大家介绍的AndroID 中使用RecyclerVIEw实现底部翻页，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编程小技巧网站的支持！

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