Java 有效负载显示正确的数据，但DOR不更新arraylist
所以，我在一个recyclerview中有三个条目，我想检查其中一个字段是否唯一（在我的例子中是名称）。所有字段都正确显示在屏幕上，但每当我调用checkValidation时，它总是返回false，即使两个名称不相同。我有一个列表，每当我从活动中调用时，它都会显示一些不同的值，而不是屏幕上的值。如果有什么你没有得到的，请评论 亲爱的社区，我在这里真的需要帮助。 让我知道你真正没有得到的部分….：/ MainActivity.javaJava 有效负载显示正确的数据，但DOR不更新arraylist,java,android,arraylist,android-recyclerview,Java,Android,Arraylist,Android Recyclerview,所以，我在一个recyclerview中有三个条目，我想检查其中一个字段是否唯一（在我的例子中是名称）。所有字段都正确显示在屏幕上，但每当我调用checkValidation时，它总是返回false，即使两个名称不相同。我有一个列表，每当我从活动中调用时，它都会显示一些不同的值，而不是屏幕上的值。如果有什么你没有得到的，请评论 亲爱的社区，我在这里真的需要帮助。 让我知道你真正没有得到的部分….：/ MainActivity.java public MainActivity extend
public MainActivity extends AppCompatActivity implements someinterface
..
..
@OnClick(R.id.activity_detailed_proceed)
void goToOrderPage() {
if (checkValidation()) {
startActivity(new Intent(MainActivity.this, Destination.class));
} else {
SameNameAlertDialogFragment sameNameAlertDialogFragment = new SameNameAlertDialogFragment();
sameNameAlertDialogFragment.show(getSupportFragmentManager(), "ERROR DIALOG");
}
}
..
..
boolean checkValidation() {
//
ArrayList<PersonFriends> personList = personAdapter.getPersonList();
ArrayList<String> namesList = new ArrayList<>();
for (int i = 0; i < personList.size(); i++) {
namesList.add(personList.get(i).getName());
System.out.println(personList.get(i).getName());
}
boolean corrent = true;
Set<String> set = new HashSet<String>(namesList);
if (set.size() < namesList.size()) {
//duplicates found
Log.d(TAG, "False was called here");
return false;
}
return true;
}
PersonAdapter personAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_detailed_selected_therapy);
ButterKnife.bind(this);
ArrayList<PersonFriends> personList = new ArrayList<>();
personAdapter = new PersonAdapter(this, this);
personRecyclerview.setAdapter(personAdapter);
personRecyclerview.setNestedScrollingEnabled(false);
personRecyclerview.setLayoutManager(new LinearLayoutManager(this));
}
some interface setup to get the name and duration
@Override
public void onPersonDetailClicked(int position, View view) {
if (view.getId() == R.id.person_name) {
adapterPosition = position;
EnterPersonDialogFragment enterPersonDialogFragment = new EnterPersonDialogFragment();
enterPersonDialogFragment.show(getSupportFragmentManager(), "PERSONS SELECTED");
}
if (view.getId() == R.id.delete_person) {
personAdapter.removeItem(position);
// personAdapter.setPersonList(personList);
// personAdapter.notifyItemRemoved(position);
}
if (view.getId() == R.id.person_duration) {
adapterPosition = position;
DurationDialogFragment durationDialogFragment = new DurationDialogFragment();
durationDialogFragment.show(getSupportFragmentManager(), "DURATION SELECTED");
}
}
@Override
public void enteredInName(String name) {
//change the list that is inside the adapter.
personAdapter.getPersonList().get(adapterPosition).setName(name);
personAdapter.notifyItemChanged(adapterPosition, PersonAdapter.PAYLOAD_NAME);
}
@Override
public void durationSelectedIs(String duration) {
personAdapter.getPersonList().get(adapterPosition).setduration(duration);
personAdapter.notifyItemChanged(adapterPosition, PersonAdapter.PAYLOAD_DURATION);
}
public class PersonAdapter extends RecyclerView.Adapter<PersonAdapter.PersonViewHolder> {
public static final String PAYLOAD_NAME = "PAYLOAD_NAME";
public static final String PAYLOAD_DURATION = "PAYLOAD_DURATION";
public static final String PAYLOAD_DATE = "PAYLOAD_DATE";
public static final String TAG = PersonAdapter.class.getSimpleName();
Context context;
ArrayList<PersonFriends> personList;
onPersonItemClicked onPersonItemClicked;
public PersonAdapter(Context context, onPersonItemClicked personItemClickListener) {
this.context = context;
onPersonItemClicked = personItemClickListener;
}
public void setPersonList(ArrayList<PersonFriends> personList) {
this.personList = personList;
notifyDataSetChanged();
}
public ArrayList<PersonFriends> getPersonList() {
return this.personList;
}
public void removeItem(int position) {
personList.remove(position);
notifyItemRemoved(position);
}
@NonNull
@Override
public PersonAdapter.PersonViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.item_persons_details, parent, false);
return new PersonViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull PersonAdapter.PersonViewHolder holder, int position) {
PersonFriends Person = personList.get(position);
holder.personName.setText(Person.getName());
holder.personDate.setText(Person.getDate());
holder.personDuration.setText(Person.getduration());
if (position == 0) {
holder.deleteFab.hide();
}
}
@Override
public void onBindViewHolder(@NonNull PersonViewHolder holder, int position, @NonNull List<Object> payloads) {
if (!payloads.isEmpty()) {
final PersonFriends item = personList.get(position);
for (final Object payload : payloads) {
if (payload.equals(PAYLOAD_NAME)) {
// in this case only name will be updated
holder.personName.setText(item.getName());
} else if (payload.equals(PAYLOAD_DURATION)) {
// only age will be updated
holder.personDuration.setText(item.getduration());
} else if (payload.equals(PAYLOAD_DATE)) {
holder.personDate.setText(item.getDate());
}
}
} else {
// in this case regular onBindViewHolder will be called
super.onBindViewHolder(holder, position, payloads);
}
}
@Override
public int getItemCount() {
return personList.size();
}
public interface onPersonItemClicked {
void onPersonDetailClicked(int position, View view);
}
class PersonViewHolder extends RecyclerView.ViewHolder {
private final View.OnClickListener onClickListener = new View.OnClickListener() {
@Override
public void onClick(View view) {
onPersonItemClicked.onPersonDetailClicked(getAdapterPosition(), view);
}
};
@BindView(R.id.person_name)
TextView personName;
@BindView(R.id.person_date)
TextView personDate;
@BindView(R.id.person_duration)
TextView personDuration;
@BindView(R.id.delete_person)
FloatingActionButton deleteFab;
public PersonViewHolder(@NonNull View itemView) {
super(itemView);
ButterKnife.bind(this, itemView);
personName.setOnClickListener(onClickListener);
personDate.setOnClickListener(onClickListener);
personDuration.setOnClickListener(onClickListener);
deleteFab.setOnClickListener(onClickListener);
}
}
}
public main活动扩展appcompative活动实现了someinterface
..
..
@单击（R.id.activity\u detailed\u Procedue）
void goToOrderPage（）{
if（checkValidation（））{
startActivity（新意图（MainActivity.this、Destination.class））；
}否则{
SameNameAlertDialogFragment SameNameAlertDialogFragment=新SameNameAlertDialogFragment（）；
显示（getSupportFragmentManager（），“错误对话框”）；
}
}
..
..
布尔检查验证（）{
//
ArrayList personList=PersonalAdapter.getPersonList（）；
ArrayList namesList=新的ArrayList（）；
对于（int i=0；i public MainActivity extends AppCompatActivity implements someinterface
..
..
@OnClick(R.id.activity_detailed_proceed)
void goToOrderPage() {
if (checkValidation()) {
startActivity(new Intent(MainActivity.this, Destination.class));
} else {
SameNameAlertDialogFragment sameNameAlertDialogFragment = new SameNameAlertDialogFragment();
sameNameAlertDialogFragment.show(getSupportFragmentManager(), "ERROR DIALOG");
}
}
..
..
boolean checkValidation() {
//
ArrayList<PersonFriends> personList = personAdapter.getPersonList();
ArrayList<String> namesList = new ArrayList<>();
for (int i = 0; i < personList.size(); i++) {
namesList.add(personList.get(i).getName());
System.out.println(personList.get(i).getName());
}
boolean corrent = true;
Set<String> set = new HashSet<String>(namesList);
if (set.size() < namesList.size()) {
//duplicates found
Log.d(TAG, "False was called here");
return false;
}
return true;
}
PersonAdapter personAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_detailed_selected_therapy);
ButterKnife.bind(this);
ArrayList<PersonFriends> personList = new ArrayList<>();
personAdapter = new PersonAdapter(this, this);
personRecyclerview.setAdapter(personAdapter);
personRecyclerview.setNestedScrollingEnabled(false);
personRecyclerview.setLayoutManager(new LinearLayoutManager(this));
}
some interface setup to get the name and duration
@Override
public void onPersonDetailClicked(int position, View view) {
if (view.getId() == R.id.person_name) {
adapterPosition = position;
EnterPersonDialogFragment enterPersonDialogFragment = new EnterPersonDialogFragment();
enterPersonDialogFragment.show(getSupportFragmentManager(), "PERSONS SELECTED");
}
if (view.getId() == R.id.delete_person) {
personAdapter.removeItem(position);
// personAdapter.setPersonList(personList);
// personAdapter.notifyItemRemoved(position);
}
if (view.getId() == R.id.person_duration) {
adapterPosition = position;
DurationDialogFragment durationDialogFragment = new DurationDialogFragment();
durationDialogFragment.show(getSupportFragmentManager(), "DURATION SELECTED");
}
}
@Override
public void enteredInName(String name) {
//change the list that is inside the adapter.
personAdapter.getPersonList().get(adapterPosition).setName(name);
personAdapter.notifyItemChanged(adapterPosition, PersonAdapter.PAYLOAD_NAME);
}
@Override
public void durationSelectedIs(String duration) {
personAdapter.getPersonList().get(adapterPosition).setduration(duration);
personAdapter.notifyItemChanged(adapterPosition, PersonAdapter.PAYLOAD_DURATION);
}
public class PersonAdapter extends RecyclerView.Adapter<PersonAdapter.PersonViewHolder> {
public static final String PAYLOAD_NAME = "PAYLOAD_NAME";
public static final String PAYLOAD_DURATION = "PAYLOAD_DURATION";
public static final String PAYLOAD_DATE = "PAYLOAD_DATE";
public static final String TAG = PersonAdapter.class.getSimpleName();
Context context;
ArrayList<PersonFriends> personList;
onPersonItemClicked onPersonItemClicked;
public PersonAdapter(Context context, onPersonItemClicked personItemClickListener) {
this.context = context;
onPersonItemClicked = personItemClickListener;
}
public void setPersonList(ArrayList<PersonFriends> personList) {
this.personList = personList;
notifyDataSetChanged();
}
public ArrayList<PersonFriends> getPersonList() {
return this.personList;
}
public void removeItem(int position) {
personList.remove(position);
notifyItemRemoved(position);
}
@NonNull
@Override
public PersonAdapter.PersonViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.item_persons_details, parent, false);
return new PersonViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull PersonAdapter.PersonViewHolder holder, int position) {
PersonFriends Person = personList.get(position);
holder.personName.setText(Person.getName());
holder.personDate.setText(Person.getDate());
holder.personDuration.setText(Person.getduration());
if (position == 0) {
holder.deleteFab.hide();
}
}
@Override
public void onBindViewHolder(@NonNull PersonViewHolder holder, int position, @NonNull List<Object> payloads) {
if (!payloads.isEmpty()) {
final PersonFriends item = personList.get(position);
for (final Object payload : payloads) {
if (payload.equals(PAYLOAD_NAME)) {
// in this case only name will be updated
holder.personName.setText(item.getName());
} else if (payload.equals(PAYLOAD_DURATION)) {
// only age will be updated
holder.personDuration.setText(item.getduration());
} else if (payload.equals(PAYLOAD_DATE)) {
holder.personDate.setText(item.getDate());
}
}
} else {
// in this case regular onBindViewHolder will be called
super.onBindViewHolder(holder, position, payloads);
}
}
@Override
public int getItemCount() {
return personList.size();
}
public interface onPersonItemClicked {
void onPersonDetailClicked(int position, View view);
}
class PersonViewHolder extends RecyclerView.ViewHolder {
private final View.OnClickListener onClickListener = new View.OnClickListener() {
@Override
public void onClick(View view) {
onPersonItemClicked.onPersonDetailClicked(getAdapterPosition(), view);
}
};
@BindView(R.id.person_name)
TextView personName;
@BindView(R.id.person_date)
TextView personDate;
@BindView(R.id.person_duration)
TextView personDuration;
@BindView(R.id.delete_person)
FloatingActionButton deleteFab;
public PersonViewHolder(@NonNull View itemView) {
super(itemView);
ButterKnife.bind(this, itemView);
personName.setOnClickListener(onClickListener);
personDate.setOnClickListener(onClickListener);
personDuration.setOnClickListener(onClickListener);
deleteFab.setOnClickListener(onClickListener);
}
}
}
public类PersonAdapter扩展了RecyclerView.Adapter{
公共静态最终字符串PAYLOAD\u NAME=“PAYLOAD\u NAME”；
公共静态最终字符串PAYLOAD\u DURATION=“PAYLOAD\u DURATION”；
公共静态最终字符串PAYLOAD\u DATE=“PAYLOAD\u DATE”；
公共静态最终字符串标记=PersonAdapter.class.getSimpleName（）；
语境；
ArrayList个人主义者；
onpersoniemclicked onpersoniemclicked；
公共角色适配器（上下文上下文，onPersonItemClicked PersonitemClicked Listener）{
this.context=上下文；
OnPersonitClicked=PersonitClickListener；
}
public void setPersonList（ArrayList personList）{
this.personList=personList；
notifyDataSetChanged（）；
}
公共数组列表getPersonList（）{
返回此.personList；
}
公共无效删除项（内部位置）{
人员列表。移除（位置）；
已移除（位置）的项目；
}
@非空
@凌驾
public PersonalAdapter.PersonViewHolder onCreateViewHolder（@NonNull ViewGroup父级，int-viewType）{
LayoutFlater充气机=LayoutFlater.from（上下文）；
视图=充气机。充气（R.layout.item\u persons\u details，parent，false）；
返回新的PersonViewHolder（视图）；
}
@凌驾
public void onBindViewHolder（@NonNull PersonAdapter.PersonViewHolder，int位置）{
PersonFriends Person=personList.get（位置）；
holder.personName.setText（Person.getName（））；
holder.personDate.setText（Person.getDate（））；
holder.personDuration.setText（Person.getduration（））；
如果（位置==0）{
holder.deleteFab.hide（）；
}
}
@凌驾
public void onBindViewHolder（@NonNull PersonViewHolder holder，int位置，@NonNull列表有效载荷）{
如果（！payloads.isEmpty（））{
最终PersonFriends项=personList.get（位置）；
对于（最终对象有效载荷：有效载荷）{
if（有效载荷等于（有效载荷名称））{
//在这种情况下，只更新名称
holder.personName.setText（item.getName（））；
}else if（有效载荷等于（有效载荷持续时间））{