我怀疑如何使用CursorRecyclerViewAdapter如何使用multipleView Type我可以使用这两个布局，但我只获得第一项的 Headers 而不是所有项目如何做到目前为止我尝试的是：
import android.content.Context;
import android.database.Cursor;
import android.graphics.Color;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.amulyakhare.textdrawable.TextDrawable;
import com.amulyakhare.textdrawable.util.ColorGenerator;
import java.util.List;
import model.CustomerModel;
import timertracker.precision.timetracker.R;
import timertracker.precision.timetracker.RecyclerViewFastScroller;
public class CustomerListAdapter extends CursorRecycleViewAdapter<CustomerListAdapter.ViewHolder> implements View.OnClickListener , RecyclerViewFastScroller.BubbleTextGetter{
int position;
Cursor cursor;
ColorGenerator generator = ColorGenerator.MATERIAL;
private OnItemClickListener onItemClickListener;
List<CustomerModel>list;
public static final int ITEM_TYPE_NORMAL = 1;
public static final int ITEM_TYPE_HEADER = 0;
public CustomerListAdapter(Context mContext, Cursor cursor) {
super(mContext, cursor);
}
public void setOnItemClickListener(final OnItemClickListener onItemClickListener) {
this.onItemClickListener = onItemClickListener;
}
@Override
public String getTextToShowInBubble(int pos) {
return Character.toString(cursor.getString(cursor.getColumnIndex(CustomerModel.Customer_Name)).charAt(0));
}
public static class MyViewHolder extends ViewHolder {
TextView textname;
TextView status;
TextView textphnum;
TextView textdegree;
TextView textemail;
ImageView call;
TextView header;
public MyViewHolder(final View itemView) {
super(itemView);
this.textname = (TextView) itemView.findViewById(R.id.subject);
this.status = (TextView) itemView.findViewById(R.id.customerstatus);
this.textemail = (TextView) itemView.findViewById(R.id.username);
this.textdegree = (TextView) itemView.findViewById(R.id.status);
this.call = (ImageView) itemView.findViewById(R.id.imageView);
}
}
public static class Headers extends ViewHolder {
TextView header;
public Headers(final View itemView) {
super(itemView);
this.header = (TextView) itemView.findViewById(R.id.header);
}
}
@Override
public int getItemViewType(int position) {
if(position==ITEM_TYPE_NORMAL)
return 1;
return 0;
}
public static class ViewHolder extends RecyclerView.ViewHolder {
public ViewHolder(View v) {
super(v);
}
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
if(viewType==ITEM_TYPE_NORMAL){
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.customeradapterview, parent, false);
MyViewHolder myViewHolder = new MyViewHolder(view);
view.setOnClickListener(this);
return myViewHolder;
}
else if(viewType==ITEM_TYPE_HEADER){
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.header, parent, false);
Headers headers = new Headers(view);
return headers;
}
return null;
}
@Override
public void onBindViewHolder(ViewHolder holder, Cursor cursor) {
String customrename = cursor.getString(cursor.getColumnIndex(CustomerModel.Customer_Name));
String email=cursor.getString(cursor.getColumnIndex(CustomerModel.Customer_EmailID));
if(holder.getItemViewType()==1) {
MyViewHolder holders=(MyViewHolder)holder;
TextView textViewName = holders.textname;
TextView textstatus = holders.status;
TextView textphnumbr = holders.textdegree;
TextView textemail=holders.textemail;
// ImageView call=holders.call;
if (email.length() >= 20) {
String s = email.substring(0, 20) + "...";
textemail.setText(s);
} else {
textemail.setText(email);
}
//textemail.setText(cursor.getString(cursor.getColumnIndex(CustomerModel.Customer_EmailID)));
String status = cursor.getString(cursor.getColumnIndex(CustomerModel.Customer_Status));
if (status.equals("Active")) {
textstatus.setTextColor(Color.parseColor("#006400"));
} else {
textstatus.setTextColor(Color.parseColor("#8B0000"));
}
textstatus.setText(status);
textphnumbr.setText(cursor.getString(cursor.getColumnIndex(CustomerModel.Customer_MobileNumber)));
String s1 = customrename.substring(0, 1).toUpperCase() + customrename.substring(1).toLowerCase();
textViewName.setText(s1);
ColorGenerator generator = ColorGenerator.DEFAULT;
String com = s1.substring(0, 1);
TextDrawable drawable = TextDrawable.builder()
.buildRound((com).toUpperCase(), generator.getRandomColor());
holders.call.setImageDrawable(drawable);
}
else if(holder.getItemViewType()==0) {
Headers header=(Headers)holder;
String s1 = customrename.substring(0, 1).toUpperCase() + customrename.substring(1).toLowerCase();
String com = s1.substring(0, 1);
header.header.setText(com);
}
}
@Override
public void onClick(View v) {
final RecyclerView recyclerView = (RecyclerView) v.getParent();
position = recyclerView.getChildLayoutPosition(v);
if (position != RecyclerView.NO_POSITION) {
final Cursor cursor = this.getItem(position);
this.onItemClickListener.onItemClicked(cursor);
}
}
public interface OnItemClickListener {
void onItemClicked(Cursor cursor);
}
}
如何获得所有项目的recyclerview Headers 我该如何实现这一目标 .
如果我在OnbindViewHolder中删除条件，这是我的Logcat消息：
FATAL EXCEPTION：main进程：timertracker.precision.timetracker，PID：28124 java.lang.ClassCastException：Adapters.CustomerListAdapter $ Headers无法转换为Adapters.CustomerListAdapter $ MyViewHolder，位于Adapters.CustomerListAdapter.onBindViewHolder（CustomerListAdapter.java:123）at Adapters.CustomerListAdapter.onBindViewHolder（CustomerListAdapter.java:26）位于android.support的android.support.v7.widget.RecyclerView $ Adapter.onBindViewHolder（RecyclerView.java:5471）上的Adapters.CursorRecycleViewAdapter.onBindViewHolder（CursorRecycleViewAdapter.java:77） .v7.widget.RecyclerView $ Adapter.bindViewHolder（RecyclerView.java:5504）在android.support.v7.widget.RecyclerView $ Recycler.getViewForPosition（RecyclerView.java:4741）在android.support.v7.widget.RecyclerView $ Recycler .getViewForPosition（RecyclerView.java:4617）位于android.support.v7.widget.LinearLayoutManager.layoutChunk（LinearLayoutManager.ja）的android.support.v7.widget.LinearLayoutManager $ LayoutState.next（LinearLayoutManager.java:1994） va：1390）在android.support.v7.widget.LineoutLayoutManager.fill（LinearLayoutManager.java:1353）的android.support.v7.widget.LinearLayoutManager.onLayoutChildren（LinearLayoutManager.java:574）android.support.v7.widget .RecyclerView.dispatchLayoutStep2（RecyclerView.java:3028）在android.support.v7.widget.RecyclerView.dispatchLayout（RecyclerView.java:2906）的android.support.v7.widget.RecyclerView.onLayout（RecyclerView.java:3283）at at android.view.Viewout中的android.view.View.layout（View.java:14845）安卓android.view.layout（ViewGroup.java:4631）android.view.Loutout（ViewL.::::::: .layout（View.java:14845）位于Android.widget.LinearLayout.setoutVertical的android.widget.LinearLayout.setChildFrame（LinearLayout.java:1671）上的android.view.ViewGroup.layout（ViewGroup.java:4631）（LinearLayout . java：1525）在android.view.Layout.onLayout（LinearLayout.java:1434）android.view.View.layout（View.java:14845）android.view.ViewGroup.layout（ViewGroup.java:4631）的android.widget.LinearLayout.onLayout在android.support.design.widget.HeaderScrollingViewBehavior.layoutChild（HeaderScrollingViewBehavior.java:122）的android.support.design.widget.ViewOffsetBehavior.onLayoutChild（ViewOffsetBehavior.java:42）android.support.design.widget.AppBarLayout $ ScrollingViewBehavior .onLayoutChild（AppBarLayout.java:1192）位于android.view.ViewGroup的android.view.View.layout（View.java:14845）的android.support.design.widget.CoordinatorLayout.onLayout（CoordinatorLayout.java:814） . Android.widget.FoutLayout.onLayout（FrameLayout.java:388）android.view.layout（View.java）的android.widget.FrameLayout.layoutChildren（FrameLayout.java:453）布局（ViewGroup.java:4631） ：14845）在android.widget.LinearLayout.setChildFrame（LinearLayout.java:1671）的android.view.Linout.setoutVertical（LinearLayout.java：1525）的android.view.ViewGroup.layout（ViewGroup.java:4631） android.view.ViewGroup.l上的android.view.View.layout（View.java:14845）中的.widget.LinearLayout.onLayout（LinearLayout.java:1434） ayout（ViewGroup.java:4631）在Android.widget.FrameLayout.onout中的android.widget.FrameLayout.layoutChildren（FrameLayout.java：453）处于android.view.View.layout（View.java）的android.widget.FrameLayout.onLayout（FrameLayout.java：388） ：14845）在android.widget.LinearLayout.setChildFrame（LinearLayout.java:1671）的android.view.Linout.setoutVertical（LinearLayout.java：1525）的android.view.ViewGroup.layout（ViewGroup.java:4631） .widget.LinearLayout.onLayout（LinearLayout.java:1434）位于android.view.View.Loutout（View.java:14845）的android.view.Viewout上的android.view.View.layout（ViewGroup.java:4631） . layoutChildren（FrameLayout.java:453）位于android.view.View.Loutout（ViewLayout.java:388）的android.view.View.layout（View.java:14845）android.view.ViewGroup.layout（ViewGroup.java） ：4631）在android.view.ViewRootImpl.performLversout（ViewRootImpl.java:2033）的android.view.ViewRootImpl.performTraversals（ViewRootImpl.java:1790）android.view.ViewRootImpl.doTraversal（ViewRootImpl.java:1046）at android . 争夺w.Vie
1 回答
这是完整的解决方案：
希望它会有所帮助 .