Android 中使用RecyclerView实现底部翻页

2023-09-21 09:42:07 72

RecyclerView是AndroidL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。接下来通过一系列的文章讲解如何使用RecyclerView,彻底抛弃ListView.

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：

BottomPagerViewxml布局：

adapter的xml布局：





BottomPagerView代码：
publicclassBottomPagerViewextendsLinearLayout{
privatefinalLinearLayoutll_content;
privateintpageSize=0;
privateButtonpre_page;
privateButtonnext_page;
privateRecyclerViewrecycler;
privateBottomAdaptermBottomAdapter;
ContextmContent;
privatebooleanmShouldScroll=false;
privateintmToPosition=0;
privateintsmoothWidth=0;
publicBottomPagerView(Contextcontext){
this(context,null);
}
publicBottomPagerView(Contextcontext,@NullableAttributeSetattrs){
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);*/
}
publicBottomPagerView(Contextcontext,@NullableAttributeSetattrs,intdefStyleAttr){
this(context,attrs);
}
privateintcurrentPage=0;
publicvoidinitView(finalContextcontext){
if(pageSize==0){
ll_content.setVisibility(INVISIBLE);
}else{
ll_content.setVisibility(VISIBLE);
finalListlist=newArrayList<>();
for(inti=0;i8){
intpixelSize=getResources().getDimensionPixelSize(R.dimen.y6);
width=pixelSize*10;
}else{
width=LayoutParams.WRAP_CONTENT;
}
LayoutParamsparams=newLayoutParams(width,ViewGroup.LayoutParams.WRAP_CONTENT);
recycler.setLayoutParams(params);
mBottomAdapter=newBottomAdapter(context,list);
recycler.setAdapter(mBottomAdapter);
mBottomAdapter.setCurPage(newBottomAdapter.getCurPage(){
@Override
publicvoidserCurPage(intp){
list.get(currentPage).setSelect(false);
list.get(p).setSelect(true);
mBottomAdapter.notifyDataSetChanged();
currentPage=p;
smoothMoveToPosition(recycler,p);
recycler.addOnScrollListener(newRecyclerView.OnScrollListener(){
@Override
publicvoidonScrollStateChanged(RecyclerViewrecyclerView,intnewState){
super.onScrollStateChanged(recyclerView,newState);
if(mShouldScroll){
mShouldScroll=false;
smoothMoveToPosition(recycler,mToPosition);
}
}
});
if(Curpage!=null){
Curpage.serCurPage(p);
}
}
});
pre_page.setOnClickListener(newOnClickListener(){
@Override
publicvoidonClick(Viewv){
if(currentPage>0){
intpage=currentPage-1;
list.get(currentPage).setSelect(false);
list.get(page).setSelect(true);
currentPage=page;
mBottomAdapter.notifyDataSetChanged();
smoothMoveToPosition(recycler,page);
recycler.addOnScrollListener(newRecyclerView.OnScrollListener(){
@Override
publicvoidonScrollStateChanged(RecyclerViewrecyclerView,intnewState){
super.onScrollStateChanged(recyclerView,newState);
if(mShouldScroll){
mShouldScroll=false;
smoothMoveToPosition(recycler,mToPosition);
}
}
});
if(Curpage!=null){
Curpage.serCurPage(page);
}
}else{
return;
}
}
});
next_page.setOnClickListener(newOnClickListener(){
@Override
publicvoidonClick(Viewv){
if(currentPage=0&&movePosition<=mRecyclerView.getChildCount()){
inttop=mRecyclerView.getChildAt(movePosition).getLeft();
intwidth=mRecyclerView.getMeasuredWidth()/2;
intscroll=top-width+mRecyclerView.getChildAt(movePosition).getMeasuredWidth()/2;
Log.d("BottomPagerView","smoothMove:"+scroll);
mRecyclerView.smoothScrollBy(scroll,0);
}
}else{
mRecyclerView.smoothScrollToPosition(position);
mShouldScroll=true;
mToPosition=position;
}
}
}
BottomAdapteradapter：
publicclassBottomAdapterextendsRecyclerView.Adapter{
ContextmContext;
Listsize;
privatebooleanisFirst=true;
privateintcurrentPage=0;
publicBottomAdapter(Contextcontext,Listsize){
this.mContext=context;
this.size=size;
}
@Override
publicMyViewHolderonCreateViewHolder(ViewGroupparent,intviewType){
Viewview=View.inflate(mContext,R.layout.bottom_item,null);
returnnewMyViewHolder(view);
}
@Override
publicvoidonBindViewHolder(finalMyViewHolderholder,finalintposition){
holder.rb.setButtonDrawable(null);
holder.rb.setText(position+1+"");
holder.rb.setTag(position);
holder.rb.setChecked(size.get(position).isSelect());
holder.rb.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewv){
if(!size.get((int)holder.rb.getTag()).isSelect()){
Curpage.serCurPage((int)holder.rb.getTag());
}
}
});
}
@Override
publicintgetItemCount(){
returnsize.size();
}
classMyViewHolderextendsRecyclerView.ViewHolder{
privatefinalRadioButtonrb;
publicMyViewHolder(ViewitemView){
super(itemView);
rb=(RadioButton)itemView.findViewById(R.id.bottom_item_rb);
}
}
privategetCurPageCurpage;
publicinterfacegetCurPage{
voidserCurPage(intp);
}
publicvoidsetCurPage(getCurPagepage){
this.Curpage=page;
}
}

调用：

直接在xml中使用

代码中调用：

初始化：

mBottomPagerView.setPageSize(AllPage);

回调：

mBottomPagerView.setCurPage(newBottomPagerView.getCurPage(){
@OverridepublicvoidserCurPage(intp){//获取点击的页码数，操作
}
});

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毛票票网站的支持！

Android 中使用RecyclerView实现底部翻页

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