方法没有覆盖自定义Recyclerview适配器Android中的超级类的方法

Question

我有一个自定义类WORecyclerListAdapter，它扩展了RecyclerView.Adapter<WORecyclerListAdapter.ViewHolder>。

我还有另一个自定义类ZWORecyclerListAdapter，它扩展了WORecyclerListAdapter

5扩展了CCD_ 6。

它们都具有CCD_ 7和CCD_。

下面是WORecyclerListAdapter类：

public abstract class WORecyclerListAdapter extends RecyclerView.Adapter<WORecyclerListAdapter.ViewHolder> {
protected ArrayList<WorkOrder> workorders;
protected int currentSelectedWOPos;
protected View currentSelectedView;
protected boolean mTwoPane;
public WORecyclerListAdapter(){
}
public WORecyclerListAdapter(ArrayList<WorkOrder> items, int selectedWOPos, boolean mTwoPane) {
try{ workorders = items;
this.currentSelectedWOPos = selectedWOPos;
this.mTwoPane = mTwoPane;
}catch(Exception e)
{ DliteLogger.WriteLog(this.getClass(), AppSettings.LogLevel.Error, e.getMessage());}
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = null;
try{ view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.workorder_list_content, parent, false);
}catch(Exception e)
{ DliteLogger.WriteLog(this.getClass(), AppSettings.LogLevel.Error,e.getMessage());}
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
try { holder.mItem = workorders.get(position);
holder.mView.setSelected(position == currentSelectedWOPos && mTwoPane);
if(position== currentSelectedWOPos && mTwoPane) {
currentSelectedView = holder.mView;
}
holder.mIdView.setText(workorders.get(position).getDisplayableWorkOrderNum());
holder.mContentView.setText(workorders.get(position).getShortText());
holder.statusIcon.setImageResource(holder.mItem.getMobileObjStatusDrawable());
holder.woTypeIcon.setImageResource(holder.mItem.getWOTypeDrawable());
holder.priorityIcon.setImageResource(holder.mItem.getPriorityDrawable());
if(holder.mItem.getBasicFnshDate() != null)
holder.dueDateTxt.setText(Common.getFormattedDate(holder.mItem.getBasicFnshDate().getTime()));
if(!holder.mItem.isAttachmentAvailable())
holder.attachmentIcon.setVisibility(View.INVISIBLE);
else
holder.attachmentIcon.setVisibility(View.VISIBLE);
if(holder.mItem.isErrorEntity()){
holder.errorIndicator.setVisibility(View.VISIBLE);
}else {
holder.errorIndicator.setVisibility(View.GONE);
}
holder.mView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int clickPos = holder.getAdapterPosition();
if (clickPos != currentSelectedWOPos && mTwoPane) {
currentSelectedWOPos = clickPos;
if (currentSelectedView != null)
currentSelectedView.setSelected(false);
currentSelectedView = v;
v.setSelected(true);
onSelectWOListItem(clickPos);
}
if(!mTwoPane)
onSelectWOListItem(clickPos);
}
});
}catch(Exception e)
{ DliteLogger.WriteLog(this.getClass(), AppSettings.LogLevel.Error,e.getMessage());}
}
public abstract void onSelectWOListItem(int position);
public void onUnSelectWOListItem(int position){}
@Override
public int getItemCount() {
try{ return workorders.size();
}catch(Exception e)
{ DliteLogger.WriteLog(this.getClass(), AppSettings.LogLevel.Error,e.getMessage());}
return 0;}
public class ViewHolder extends RecyclerView.ViewHolder {
public final View mView;
public final View errorIndicator;
public final TextView mIdView;
public final TextView mContentView;
public final ImageView statusIcon;
public final ImageView priorityIcon;
public final ImageView woTypeIcon;
public final ImageView attachmentIcon;
public final TextView dueDateTxt;
public WorkOrder mItem;
public ViewHolder(View view) {
super(view);
mView = view;
mIdView = (TextView) view.findViewById(R.id.id);
mContentView = (TextView) view.findViewById(R.id.short_text);
statusIcon = (ImageView) view.findViewById(R.id.status_icon);
priorityIcon = (ImageView) view.findViewById(R.id.wo_priority_icon);
woTypeIcon = (ImageView) view.findViewById(R.id.type_icon);
attachmentIcon = (ImageView) view.findViewById(R.id.attach_icon);
dueDateTxt = (TextView) view.findViewById(R.id.dueDateTxt);
errorIndicator = view.findViewById(R.id.errorIndicator);
}
@Override
public String toString() {
try{
return super.toString() + " '" + mContentView.getText() + "'";
}catch(Exception e)
{ DliteLogger.WriteLog(this.getClass(), AppSettings.LogLevel.Error,e.getMessage());}
return "";
}
}
}

下面是扩展WORecyclerListAdapter的ZWORecyclerListAdapter类

public class ZWORecyclerListAdapter extends WORecyclerListAdapter{

public ZWORecyclerListAdapter(){
super();
}
public ZWORecyclerListAdapter(ArrayList<WorkOrder> items, int selectedWOPos, boolean mTwoPane) {
super();
try{ workorders = items;
this.currentSelectedWOPos = selectedWOPos;
this.mTwoPane = mTwoPane;
}catch(Exception e)
{ DliteLogger.WriteLog(this.getClass(), AppSettings.LogLevel.Error, e.getMessage());}
}
@Override
public WORecyclerListAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = null;
try{ view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.z_workorder_list_content, parent, false);
}catch(Exception e)
{ DliteLogger.WriteLog(this.getClass(), AppSettings.LogLevel.Error, e.getMessage());}
//return new ViewHolder(view);
return new WORecyclerListAdapter.ViewHolder(view);
}

@Override
public void onBindViewHolder(final ViewHolder holder, int position) {
try { holder.mItem = workorders.get(position);
holder.mView.setSelected(position == currentSelectedWOPos && mTwoPane);
if(position== currentSelectedWOPos && mTwoPane) {
currentSelectedView = holder.mView;
}
holder.mIdView.setText(workorders.get(position).getDisplayableWorkOrderNum());
holder.mContentView.setText(workorders.get(position).getShortText());
holder.statusIcon.setImageResource(holder.mItem.getMobileObjStatusDrawable());
//holder.woTypeIcon.setImageResource(holder.mItem.getWOTypeDrawable());
//-------------------------------------------------------------
holder.locationTxt.setText(workorders.get(0).getFuncLocation());
holder.typeTxt.setText(workorders.get(0).getOrderType());
//-------------------------------------------------------------
holder.priorityIcon.setImageResource(holder.mItem.getPriorityDrawable());
if(holder.mItem.getBasicFnshDate() != null)
holder.dueDateTxt.setText(Common.getFormattedDate(holder.mItem.getBasicFnshDate().getTime()));
if(!holder.mItem.isAttachmentAvailable())
holder.attachmentIcon.setVisibility(View.INVISIBLE);
else
holder.attachmentIcon.setVisibility(View.VISIBLE);
if(holder.mItem.isErrorEntity()){
holder.errorIndicator.setVisibility(View.VISIBLE);
}else {
holder.errorIndicator.setVisibility(View.GONE);
}
holder.mView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int clickPos = holder.getAdapterPosition();
if (clickPos != currentSelectedWOPos && mTwoPane) {
currentSelectedWOPos = clickPos;
if (currentSelectedView != null)
currentSelectedView.setSelected(false);
currentSelectedView = v;
v.setSelected(true);
onSelectWOListItem(clickPos);
}
if(!mTwoPane)
onSelectWOListItem(clickPos);
}
});
}catch(Exception e)
{ DliteLogger.WriteLog(this.getClass(), AppSettings.LogLevel.Error,e.getMessage());}
}
@Override
public void onSelectWOListItem(int position) {
}


public class ViewHolder extends RecyclerView.ViewHolder {
public final View mView;
public final View errorIndicator;
public final TextView mIdView;
public final TextView mContentView;
public final ImageView statusIcon;
public final ImageView priorityIcon;
//public final ImageView woTypeIcon;
public final ImageView attachmentIcon;
public final TextView dueDateTxt;
public WorkOrder mItem;
public final TextView locationTxt;
public final TextView typeTxt;
public ViewHolder(View view) {
super(view);
mView = view;
mIdView = (TextView) view.findViewById(R.id.id);
mContentView = (TextView) view.findViewById(R.id.short_text);
statusIcon = (ImageView) view.findViewById(R.id.status_icon);
priorityIcon = (ImageView) view.findViewById(R.id.wo_priority_icon);
//woTypeIcon = (ImageView) view.findViewById(R.id.type_icon);
locationTxt = (TextView) view.findViewById(R.id.locationTxt);
attachmentIcon = (ImageView) view.findViewById(R.id.attach_icon);
dueDateTxt = (TextView) view.findViewById(R.id.dueDateTxt);
errorIndicator = view.findViewById(R.id.errorIndicator);
typeTxt = (TextView) view.findViewById(R.id.type_txt);
}
@Override
public String toString() {
try{
return super.toString() + " '" + mContentView.getText() + "'";
}catch(Exception e)
{ DliteLogger.WriteLog(this.getClass(), AppSettings.LogLevel.Error,e.getMessage());}
return "";
}
}

}

When I override "onBindViewHolder" method in ZWORecyclerListAdapter class it showing as "method doesnot override method of super class"
This "onBindViewHolder" method is already there in "WORecyclerListAdapter" class.

如何在ZWORecyclerListAdapter中覆盖onBindViewHolder方法？

我试过了，但没有成功。请帮我一下。提前感谢。

Answer 1

由于ZWORecyclerListAdapter扩展了WORecyclerListAdapter，而CCD_13又扩展了RecyclerView.Adapter<WORecyclerListAdapter.ViewHolder>，因此onBindViewHolder方法的第二个参数必须是WORecyclerListAdapter.ViewHolder。而您使用的是ZWORecyclerListAdapter自己的ViewHolder，它不起作用。

您可能想要创建一个通用ViewHolder，它将适用于两个适配器。