RecyclerView 適配器問題
[英]RecyclerView adapter issue
問題描述
在回收視圖的適配器視圖中加載數據時遇到問題。
我在活動中有兩個Fragment ，第二個Fragment有 3 個回收視圖。 但問題是我在原始視圖持有者中有一個checkbox ，我檢查了其中的一些。 當我向上/向下滾動時， recycleview數據的數據重新排列為默認值，所有復選框再次為 false。
我在綁定方法中使用了 set recycle(false) 但仍然無法正常工作。
public class VenueOrderPriceAdapter extends
RecyclerView.Adapter<VenueOrderPriceAdapter.DataViewHolder> {
static Context mContext;
public static double final_total;
public static String selected_hr,selected_min;
static private List<VenueOrderPriceModel> stList;
static private String str_id, str_charges, str_is_flat_charges, str_is_per_person_charges;
/*str_hour_extension_charges, str_extra_person_charges=null, str_is_group_size, str_group_size_from,
str_group_size_to*/;
private static boolean isPkgAdded;
public VenueOrderPriceAdapter(Context mContext, List<VenueOrderPriceModel> students) {
this.mContext = mContext;
this.stList = students;
}
// Create new views
@Override
public DataViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
// create a new view
View itemLayoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_venueorder_price, parent,false);
Log.e("on create called---","dsdf--111");
// create ViewHolder
DataViewHolder viewHolder = new DataViewHolder(itemLayoutView);
final_total=0;
return viewHolder;
}
@Override
public void onBindViewHolder(final DataViewHolder viewHolder, final int positiona) {
Log.e("on bind called---","dsdf"+positiona);
viewHolder.setIsRecyclable(false);
}
// Return the size arraylist
@Override
public int getItemCount() {
return stList.size();
}
public static class DataViewHolder extends RecyclerView.ViewHolder {
public TextView tvName,tv_details,tv_duration ,tv_guestCount,tv_price,tv_extra_charge,tv_addtocart,tv_pkg_rate;
CheckBox cb_selectedprice;
private LinearLayout ll_extra,ll_extra_charge;
Spinner sp_hh,sp_mm,sp_qty;
ImageView img_clock,img_guest,img_remove;
public DataViewHolder(View itemLayoutView) {
super(itemLayoutView);
tvName = (TextView) itemLayoutView.findViewById(R.id.tvName);
tv_details = (TextView) itemLayoutView.findViewById(R.id.tv_details);
tv_duration = (TextView) itemLayoutView.findViewById(R.id.tv_duration);
tv_guestCount = (TextView) itemLayoutView.findViewById(R.id.tv_guestCount);
tv_price = (TextView) itemLayoutView.findViewById(R.id.tv_price);
tv_extra_charge = (TextView)itemLayoutView.findViewById(R.id.tv_extra_charge);
tv_pkg_rate = (TextView)itemLayoutView.findViewById(R.id.tv_pkg_rate);
img_clock = (ImageView) itemLayoutView.findViewById(R.id.img_clock);
img_guest = (ImageView) itemLayoutView.findViewById(R.id.img_guest);
img_remove = (ImageView) itemLayoutView.findViewById(R.id.img_remove);
sp_hh = (Spinner)itemView.findViewById(R.id.sp_hh);
sp_mm = (Spinner)itemView.findViewById(R.id.sp_mm);
sp_qty = (Spinner)itemView.findViewById(R.id.sp_qty);
// tv_ext_person= (TextView)itemView.findViewById(R.id.tv_ext_person);
ll_extra =(LinearLayout)itemView.findViewById(R.id.ll_extra);
ll_extra_charge =(LinearLayout)itemView.findViewById(R.id.ll_extra_charge);
tv_addtocart= (TextView) itemView.findViewById(R.id.tv_addtocart);
cb_selectedprice =(CheckBox)itemView.findViewById(R.id.cb_selectedprice);
final int position = getAdapterPosition();
String extra_duration_charge = "";
str_id= stList.get(position).getId();
if(stList.get(position).getIs_applicable().equalsIgnoreCase("0")){
itemView.setEnabled(false);
itemView.setClickable(false);
itemView.setBackgroundResource(R.color.md_blue_grey_50);
tv_addtocart.setVisibility(View.GONE);
}
tvName.setText(stList.get(position).getPackage_name());
tv_details.setText(stList.get(position).getChrages_inclusion());
tv_price.setText(" $ "+Const.GLOBAL_FORMATTER.format(Double.parseDouble(stList.get(position).getCharges())));
if(stList.get(position).getPacakage_hours()!=null){
tv_duration.setText(stList.get(position).getPacakage_hours().substring(0,stList.get(position).getPacakage_hours().length()-3)+" hr");
}else{
tv_duration.setVisibility(View.GONE);
}
if(stList.get(position).getIs_group_charges().equalsIgnoreCase("1")){
tv_guestCount.setText(stList.get(position).getGroup_size_from()
+"-"
+stList.get(position).getGroup_size_to() +" Guest");
}else{
tv_guestCount.setVisibility(View.GONE);
}
//======EXTRA GUEST AND TIME CONDITION FOR TEXT VIEW ==========================================
if(stList.get(position).getIs_hour_extension_charges()!=null) {
if(stList.get(position).getIs_hour_extension_charges().equalsIgnoreCase("1")){
ll_extra_charge.setVisibility(View.VISIBLE);
if (stList.get(position).getExtension_hours().substring(0, 2).equalsIgnoreCase("00")) {
extra_duration_charge = "$ " + stList.get(position).getHour_extension_charges() + " / " + stList.get(position).getExtension_hours().substring(3, 5) + " min";
} else {
extra_duration_charge = "$ " + stList.get(position).getHour_extension_charges() + " / " + stList.get(position).getExtension_hours().substring(0, 5) + " hours";
}
tv_extra_charge.setText(extra_duration_charge);
}
}
if(stList.get(position).getIs_group_charges().equalsIgnoreCase("1") && stList.get(position).getIs_extra_person_charges().equalsIgnoreCase("1")){
extra_duration_charge = extra_duration_charge+"\n"+"$"+stList.get(position).getIs_extra_person_charges()+"/ person";
tv_extra_charge.setText(extra_duration_charge);
}
if(extra_duration_charge==null || extra_duration_charge.length()<1){
ll_extra_charge.setVisibility(View.GONE);
if(stList.get(position).getIs_flat_charges().equalsIgnoreCase("1")){
tv_pkg_rate.setText("Flat Rate");
} else if(stList.get(position).getIs_perperson_charges().equalsIgnoreCase("1")){
tv_pkg_rate.setText("Per Person");
} else if(stList.get(position).getIs_perhour_charges().equalsIgnoreCase("1")) {
tv_pkg_rate.setText("Per Hour");
}
}else{
if(stList.get(position).getIs_flat_charges().equalsIgnoreCase("1")){
tv_pkg_rate.setText("Flat Rate");
} else if(stList.get(position).getIs_perperson_charges().equalsIgnoreCase("1")){
tv_pkg_rate.setText("Per Person");
} else if(stList.get(position).getIs_perhour_charges().equalsIgnoreCase("1")) {
tv_pkg_rate.setText("Per Hour");
}
}
//==========FLAT PER PERSON PER HOURE CHARGES CONDITION======================================================
if(stList.get(position).getIs_flat_charges().equalsIgnoreCase("1")){
ll_extra.setVisibility(View.INVISIBLE);
// tv_ext_person.setVisibility(View.GONE);
} else if(stList.get(position).getIs_perperson_charges().equalsIgnoreCase("1")){
if(stList.get(position).getIs_group_charges().equalsIgnoreCase("1") && stList.get(position).getExtra_person_charges()!=null){
ll_extra.setVisibility(View.VISIBLE);
img_clock.setVisibility(View.GONE);
sp_hh.setVisibility(View.GONE);
//np_itemcount.setVisibility(View.VISIBLE);
// tv_ext_person.setVisibility(View.VISIBLE);
//np_itemcount.setMaxValue(Integer.parseInt(stList.get(position).getGroup_size_to()));
}else{
ll_extra.setVisibility(View.INVISIBLE);
//tv_ext_person.setVisibility(View.GONE);
}
if(stList.get(position).getIs_extra_person_charges().equalsIgnoreCase("0")){
ll_extra.setVisibility(View.INVISIBLE);
//tv_ext_person.setVisibility(View.GONE);
}
}else if(stList.get(position).getIs_perhour_charges().equalsIgnoreCase("1")) {
ll_extra.setVisibility(View.VISIBLE);
img_guest.setVisibility(View.GONE);
sp_qty.setVisibility(View.GONE);
//ll_duration.setVisibility(View.GONE);
}
List<String> list_hh = new ArrayList<String>();
list_hh.add("HH");
list_hh.add("01");
list_hh.add("02");
list_hh.add("03");
list_hh.add("04");
list_hh.add("05");
list_hh.add("06");
list_hh.add("07");
list_hh.add("08");
list_hh.add("09");
list_hh.add("10");
list_hh.add("11");
list_hh.add("12");
ArrayAdapter<String> dataAdapter_hh = new ArrayAdapter<String>(mContext,android.R.layout.simple_spinner_item, list_hh);
dataAdapter_hh.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sp_hh.setAdapter(dataAdapter_hh);
List<String> list_mm = new ArrayList<String>();
list_mm.add("MM");
list_mm.add("00");
list_mm.add("15");
list_mm.add("30");
list_mm.add("45");
ArrayAdapter<String> dataAdapter_mm = new ArrayAdapter<String>(mContext,android.R.layout.simple_spinner_item, list_mm);
dataAdapter_mm.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sp_mm.setAdapter(dataAdapter_mm);
List<String> list_qty = new ArrayList<String>();
list_qty.add("Guest");
for(int a=0;a<100;a++){
list_qty.add(Integer.toString(a));
}
ArrayAdapter<String> dataAdapter_qty = new ArrayAdapter<String>(mContext,android.R.layout.simple_spinner_item, list_qty);
dataAdapter_qty.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sp_qty.setAdapter(dataAdapter_qty);
sp_hh.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int positionSP, long id) {
if(sp_mm.getSelectedItemPosition()>1 && positionSP>1){
final_total = Double.parseDouble(stList.get(position).getCharges())+(Double.parseDouble(stList.get(position).getCharges()) * (double) (sp_hh.getSelectedItemPosition() +1) );
}else{
if(positionSP > 1) {
final_total = Double.parseDouble(stList.get(position).getCharges())+(Double.parseDouble(stList.get(position).getCharges()) * (double) (sp_hh.getSelectedItemPosition()));
}else{
final_total = Double.parseDouble(stList.get(position).getCharges());
}
}
/* Toast.makeText(parent.getContext(), "Time : " +
sp_hh.getItemAtPosition(sp_hh.getSelectedItemPosition()).toString()
+ ":"
+String.valueOf(sp_mm.getSelectedItem()), Toast.LENGTH_SHORT).show();*/
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
sp_mm.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int positionSP, long id) {
if(positionSP>1){
final_total = Double.parseDouble(stList.get(position).getCharges())+(Double.parseDouble(stList.get(position).getCharges()) *(double) (sp_hh.getSelectedItemPosition() + 1 ));
// tv_menutitle_venuepricing.setText("Pricing Plans "+" ( Total : "+final_total+" )");
}else{
if(sp_hh.getSelectedItemPosition()>0){
final_total =Double.parseDouble(stList.get(position).getCharges())+(Double.parseDouble(stList.get(position).getCharges()) * (double) (sp_hh.getSelectedItemPosition()));
}else{
final_total = Double.parseDouble(stList.get(position).getCharges());
}
}
/*Toast.makeText(parent.getContext(), "Time : " + sp_hh.getItemAtPosition(sp_hh.getSelectedItemPosition()).toString()
+ ":" +sp_mm.getItemAtPosition(sp_mm.getSelectedItemPosition()).toString(), Toast.LENGTH_SHORT).show();*/
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
/*chkSelected.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(chkSelected.isChecked()==true){
checked_count=checked_count+1;
if(checked_count > 1){
chkSelected.setChecked(false);
checked_count=checked_count-1;
Log.d("chk count ",""+checked_count);
}else {
Log.d("chk count",""+checked_count);
if(stList.get(position).getIs_perperson_charges().equalsIgnoreCase("1")){
final_total = Double.parseDouble(stList.get(position).getCharges()) * Double.parseDouble(et_guestCount.getText().toString());
// tv_menutitle_venuepricing.setText("Pricing Plans "+" ( Total : "+final_total+" )");
}else if(stList.get(position).getIs_perhour_charges().equalsIgnoreCase("1")){
if(np_minutes_venue_pkg.getValue()>0){
final_total = Double.parseDouble(stList.get(position).getCharges()) * (double)(np_hour_venue_pkg.getValue()+1);
// tv_menutitle_venuepricing.setText("Pricing Plans "+" ( Total : "+final_total+" )");
}else{
if(np_hour_venue_pkg.getValue()>0) {
final_total = Double.parseDouble(stList.get(position).getCharges()) * (double) (np_hour_venue_pkg.getValue());
// tv_menutitle_venuepricing.setText("Pricing Plans " + " ( Total : "+ Const.GLOBAL_FORMATTER.format(final_total) + " )");
}else{
final_total = Double.parseDouble(stList.get(position).getCharges());
//tv_menutitle_venuepricing.setText("Pricing Plans " + " ( Total : "+ Const.GLOBAL_FORMATTER.format(final_total) + " )");
}
}
selected_hr= Integer.toString(np_hour_venue_pkg.getValue());
if(selected_hr.length()<=1){
selected_hr="0"+selected_hr;
}
selected_min=Integer.toString(np_minutes_venue_pkg.getValue());
if(selected_min.length()<=1){
selected_min="0"+selected_min;
}
}else if(stList.get(position).getIs_flat_charges().equalsIgnoreCase("1")){
if(stList.get(position).getIs_group_charges().equalsIgnoreCase("1") && stList.get(position).getIs_extra_person_charges().equalsIgnoreCase("1") ){
int guest_from =Integer.parseInt(stList.get(position).getGroup_size_from());
int guest_to =Integer.parseInt(stList.get(position).getGroup_size_to());
int guest =Integer.parseInt(et_guestCount.getText().toString());
if(guest>guest_to){
int extra_guest = guest-guest_to;
final_total = ((double)extra_guest * Double.parseDouble(stList.get(position).getExtra_person_charges()) )
+Double.parseDouble(stList.get(position).getCharges());
// tv_menutitle_venuepricing.setText("Pricing Plans " + " ( Total : " + Const.GLOBAL_FORMATTER.format(final_total) + " )");
}else{
final_total = Double.parseDouble(stList.get(position).getCharges());
// tv_menutitle_venuepricing.setText("Pricing Plans " + " ( Total : "+ Const.GLOBAL_FORMATTER.format(final_total) + " )");
}
}else {
final_total = Double.parseDouble(stList.get(position).getCharges());
// tv_menutitle_venuepricing.setText("Pricing Plans " + " ( Total : "+ Const.GLOBAL_FORMATTER.format(final_total) + " )");
}
}
}
}else{
checked_count=checked_count-1;
Log.d("chk count",""+checked_count);
if(checked_count==0){
// tv_menutitle_venuepricing.setText("Pricing Plans ");
}
}
VenueOrderPriceModel contact = (VenueOrderPriceModel) chkSelected.getTag();
contact.setSelected(chkSelected.isChecked());
stList.get(getAdapterPosition()).setSelected(chkSelected.isChecked());
*//*Toast.makeText(
chkSelected.getContext(),
"Clicked on Checkbox: " + chkSelected.getText() + " is "
+ chkSelected.isChecked(), Toast.LENGTH_LONG).show();*//*
}
});*/
if (cb_selectedprice.isChecked()==true){
img_remove.setVisibility(View.VISIBLE);
}else{
img_remove.setVisibility(View.GONE);
}
img_remove.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
isPkgAdded=false;
cb_selectedprice.setChecked(false);
img_remove.setVisibility(View.GONE);
tv_addtocart.setBackground(mContext.getResources().getDrawable(R.drawable.rounded_corner_orange_white_borde,mContext.getTheme()));
tv_addtocart.setEnabled(true);
final_total=0;
}
});
tv_addtocart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isPkgAdded == true || cb_selectedprice.isChecked()==true) {
Toast.makeText(mContext, "First Remove Added Pacakge", Toast.LENGTH_LONG).show();
} else {
Log.e("boooking details --",str_dateselected+str_guest_count+str_timeslot);
}
}
});
}
}
// method to access in activity after updating selection
public List<VenueOrderPriceModel> getStudentist() {
return stList;
}
}
2 個解決方案
解決方案1
0 2017-10-17 10:24:21
您必須從每個位置的復選框的 onCheckChangeListener 維護數據模型中每個復選框的狀態。
然后你必須在適配器的 onBind 方法中設置復選框狀態
解決方案2
0 2017-10-17 10:40:20
回收器視圖回收 OnBindViewHolder 中的視圖。 所以當項目滾動視圖再次回收。解決這個問題。
創建一個全局變量來存儲點擊的位置。
private mItemSelected=-1;
然后在 viewholder 中添加 clickListener 和 onClick 存儲被點擊項目的位置。
public class ViewHolder extends RecyclerView.ViewHolder {
public ViewHolder(View v) {
super(v);
v.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mItemSelected = getAdapterPosition();
notifyDataSetChanged();
}
});
}
}
在 OnBindViewHolder 里面，
@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
if(mItemSelected==position){
holder.status.setChecked(true);
}else{
holder.status.setChecked(false);
}
}
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