android – RecyclerView带有一张静态卡和其他动态卡

概述我需要这样做：使用CardView的RecycleView.第一张卡是静态的：它显示“此订单的详细信息”.第一个之后的其他卡是动态的.所以我决定做这个代码： public class DocumentTypeAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder>{private List<DocumentType> do 我需要这样做：使用CardVIEw的RecycleVIEw.第一张卡是静态的：它显示“此订单的详细信息”.第一个之后的其他卡是动态的.所以我决定做这个代码：

public class documentTypeAdapter extends RecyclerVIEw.Adapter<RecyclerVIEw.VIEwHolder>{private List<documentType> document; //Lista di card da rIEmpireprivate Context context;public documentTypeAdapter(List<documentType>document,Context context){    this.document = document;    this.context = context;}public RecyclerVIEw.VIEwHolder onCreateVIEwHolder(VIEwGroup parent,int vIEwType){    VIEw vIEw;    if(vIEwType == 0)    {        vIEw = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_info,parent,false);        VIEwSimple simpleVIEw = new VIEwSimple(vIEw);        return simpleVIEw;    }    else    {        vIEw = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_info,false);        documentTypeVIEwHolder documentTypeVIEwHolder = new documentTypeVIEwHolder(vIEw);        return documentTypeVIEwHolder;    }}@OverrIDepublic voID onBindVIEwHolder(RecyclerVIEw.VIEwHolder holder,int position){    documentType documents = document.get(position);    if(getItemVIEwType(position)!=0)     {        holder.Title.setText(documents.getTitle());        holder.cert.setText(documents.getTypeofCertificate());        holder.lastmod.setText(documents.getLastModifIEd());    }}@OverrIDepublic int getItemCount(){    return document.size();}@OverrIDepublic int getItemVIEwType(int position){    return document.size();}private class VIEwSimple extends RecyclerVIEw.VIEwHolder{    public VIEwSimple(VIEw itemVIEw)    {        super(itemVIEw);    }}public class documentTypeVIEwHolder extends RecyclerVIEw.VIEwHolder implements VIEw.OnClickListener{    TextVIEw Title,lastmod,cert;    public documentTypeVIEwHolder(VIEw itemVIEw)    {        super(itemVIEw);        Title = (TextVIEw)itemVIEw.findVIEwByID(R.ID.tipo);        lastmod = (TextVIEw)itemVIEw.findVIEwByID(R.ID.ultimamodifica);        cert = (TextVIEw)itemVIEw.findVIEwByID(R.ID.certificato);        itemVIEw.setonClickListener(this);    }    @OverrIDe    public voID onClick(VIEw v)    {    }}}

但它不起作用.
我的问题是：

>如何使第一张卡静态和其他动态？
>我的数据在文档列表中.那么如何对方法getItemVIEwType()说第一张卡是静态的,其他卡是从列表文档的大小生成的？

编辑：这是带有更改的代码：

public class documentTypeAdapter extends RecyclerVIEw.Adapter<RecyclerVIEw.VIEwHolder>{private static final int STATIC_CARD = 0;private static final int DYNAMIC_CARD = 1;private List<documentType> document; private Context context;public documentTypeAdapter(List<documentType>document,int vIEwType){    VIEw vIEw;    if(vIEwType == STATIC_CARD)    {        vIEw = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_info,false);        VIEwSimple simpleVIEw = new VIEwSimple(vIEw);        return simpleVIEw;    }    else    {        vIEw = LayoutInflater.from(parent.getContext()).inflate(R.layout.document_card_type,int position){    documentType documents = document.get(position);    if(getItemVIEwType(position)==DYNAMIC_CARD)    {        documentTypeVIEwHolder mHolder = (documentTypeVIEwHolder)holder;        mHolder.data.setText(documents.getData());        mHolder.status.setText(documents.getStatus());        Picasso.with(context).load(documents.getimage().toString()).into(mHolder.image,new com.squareup.picasso.Callback() {            @OverrIDe            public voID onSuccess() {                Log.d("Picasso","success");            }            @OverrIDe            public voID onError()            {                Log.d("Picasso","error");            }        });    }}@OverrIDepublic int getItemCount(){    return document.size();}@OverrIDepublic int getItemVIEwType(int position){   if(position == 0)    return STATIC_CARD;   else    return DYNAMIC_CARD;}private class VIEwSimple extends RecyclerVIEw.VIEwHolder{    public VIEwSimple(VIEw itemVIEw)    {        super(itemVIEw);    }}public class documentTypeVIEwHolder extends RecyclerVIEw.VIEwHolder{    TextVIEw data,status;    ImageVIEw image;    public documentTypeVIEwHolder(VIEw itemVIEw)    {        super(itemVIEw);         data = (TextVIEw)itemVIEw.findVIEwByID(R.ID.dateCharging);         status =(TextVIEw)itemVIEw.findVIEwByID(R.ID.statusCharging);         image = (ImageVIEw)itemVIEw.findVIEwByID(R.ID.documentImage);    }}}

谢谢你的回答

解决方法 您应该覆盖getItemVIEwType()并使其在应该是动态卡或静态卡时返回不同的值.由于您希望第一张卡是静态的,因此当位置== 0时,您应该返回不同的值.这看起来像这样：

private static final int STATIC_CARD = 0;    private static final int DYNAMIC_CARD = 1;    @OverrIDe    public int getItemVIEwType(int position) {        if(position == 0) {            return STATIC_CARD;        } else {            return DYNAMIC_CARD;        }    }

然后在你的onCreateVIEwHolder()方法中,你应该检查vIEwType并根据你应该给视图充气的结果,你已经做好了,但我会用私有静态最终的int STATIC_CARD替换硬编码的0.

编辑：刚出现在我的脑海中,如果您只需要一张静态卡,您可能需要考虑在Fragment / Activity xml布局中放置一个CardVIEw,并将其余的动态卡放在该静态卡下面的RecyclerVIEw中.

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