Update certain item in List data from RecyclerView.Adapter class

Update certain item in List data from RecyclerView.Adapter class - android

Is there any way to update certain List data from RecyclerView.Adapter class
here is my List class:
public class Idea {
private String id, name, voted;
public Idea(String id, String name, String voted) {
this.id = id;
this.name = name;
this.voted = voted;
}
public String getId() {
return id;
}
public String getName() {
return name;
}
public String getVoted() {
return voted;
}
}
my RecyclerView Adapter class:
public class IdeaListAdapter extends RecyclerView.Adapter<IdeaListAdapter.IdeaViewHolder> {
private Context mCtx;
private List<Idea> ideaList, idlst;
public IdeaListAdapter(Context mCtx, List<Idea> ideaList) {
this.mCtx = mCtx;
this.ideaList = ideaList;
}
#NonNull
#Override
public IdeaListAdapter.IdeaViewHolder onCreateViewHolder(#NonNull ViewGroup viewGroup, int i) {
LayoutInflater inflater = LayoutInflater.from(mCtx);
View view = inflater.inflate(R.layout.idea_list_object_layout, null);
return new IdeaListAdapter.IdeaViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull IdeaListAdapter.IdeaViewHolder ideaViewHolder, int i) {
final Idea idea = ideaList.get(i);
if (idea.getVoted().equals("0")) {
ideaViewHolder.checkBoxLikeIdeaListFragment.setChecked(false);
} else if (idea.getVoted().equals("1")) {
ideaViewHolder.checkBoxLikeIdeaListFragment.setChecked(true);
}
ideaViewHolder.checkBoxLikeIdeaListFragment.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
if (b) {
*** Update my idea.getVoted() here ***
} else {
*** Update my idea.getVoted() here ***
}
}
});
ideaViewHolder.textViewNameIdeaListFragment.setText(idea.getName());
}
#Override
public int getItemCount() {
return ideaList.size();
}
class IdeaViewHolder extends RecyclerView.ViewHolder {
TextView textViewNameIdeaListFragment;
CheckBox checkBoxLikeIdeaListFragment;
public IdeaViewHolder(#NonNull View itemView) {
super(itemView);
textViewNameIdeaListFragment = (TextView) itemView.findViewById(R.id.textViewNameIdeaListFragment);
checkBoxLikeIdeaListFragment = (CheckBox) itemView.findViewById(R.id.checkBoxLikeIdeaListFragment);
}
}
}
i would like to update my idea.getVoted() when the user click the checkBoxLikeIdeaListFragment
im not quite sure how i will use the ideaList.set() at this part.
should i do it on my MainActivity ? if yes, please teach me.

Create Setter method on your Model class **Idea** and access setter method to update the data.
Like this.
public class Idea {
private String id, name, voted;
public Idea(String id, String name, String voted) {
this.id = id;
this.name = name;
this.voted = voted;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getVoted() {
return voted;
}
public void setVoted(String voted) {
this.voted = voted;
}
}
Use setter method of setVoted in your adapter class.
ideaViewHolder.checkBoxLikeIdeaListFragment.setOnCheckedChangeListener(
new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
i
ideaList.get(i).setVoted("set your data"); //here you have to upadte the vote value.
notifiyDatasetChanged();
}
});

Quickest way to do this is to pass a OnCheckedListener on your IdeaViewHolder constructor and assign it to your checkBoxLikeIdeaListFragment.
Or on your existing code you can:
ideaViewHolder.checkBoxLikeIdeaListFragment.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
ideaList.get(i).setVoted(b); // i is the int index passed to onBindViewHolder(..)
IdeaListAdapter.this.notifyDatasetChanged(); //update list
}
});

Related

RecyclerView shows only two textview?others are not display...items are not displaying

i have facing issue like only two items are displayed others two items are not displayed they are contact and flat no this items are not displaying...i tried also removing and adding others textview but through this only two items are displayed.... Now I want to display the data on a RecyclerView which doesn't seem to work, I'm pretty sure that my code is good but something doesn't seem to work and I can't find it.i also try all the things suggested by stackoverflow but nothing can happen so that i think i need to ask...
Here the file
public class RecieptFP extends AppCompatActivity {
private RecyclerView mFirestoreList;
private FirebaseFirestore firebasefirestore;
private FirestoreRecyclerAdapter adapter;
Button Back;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_reciept_fp);
Back = findViewById(R.id.btndashboard);
firebasefirestore = FirebaseFirestore.getInstance();
mFirestoreList = findViewById(R.id.firestore_list);
//query
Query query = firebasefirestore.collection("UserDataR");
//RecyclerOptions
FirestoreRecyclerOptions<RecieptModel> options = new FirestoreRecyclerOptions.Builder<RecieptModel>()
.setQuery(query, RecieptModel.class)
.build();
adapter = new FirestoreRecyclerAdapter<RecieptModel, RecieptViewHolder>(options) {
#NonNull
#Override
public RecieptViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.listsingleiteam, parent, false);
return new RecieptViewHolder(view);
}
#Override
protected void onBindViewHolder(RecieptViewHolder recieptViewHolder, int i, RecieptModel recieptModel) {
recieptViewHolder.list_name.setText(recieptModel.getName());
recieptViewHolder.list_amount.setText(recieptModel.getAmount());
recieptViewHolder.list_contact.setText(recieptModel.getContact());
recieptViewHolder.list_Flatno.setText(recieptModel.getFlatNo());
}
};
//viewholder
mFirestoreList.setHasFixedSize(false);
mFirestoreList.setLayoutManager(new LinearLayoutManager(this));
mFirestoreList.setAdapter(adapter);
Back.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i1 = new Intent(RecieptFP.this, Dashboard.class);
startActivity(i1);
}
});
}
private class RecieptViewHolder extends RecyclerView.ViewHolder {
private TextView list_name;
private TextView list_amount;
private TextView list_contact;
private TextView list_Flatno;
public RecieptViewHolder(#NonNull View itemView) {
super(itemView);
list_name = itemView.findViewById(R.id.list_name);
list_amount = itemView.findViewById(R.id.list_amount);
list_contact = itemView.findViewById(R.id.list_contact);
list_Flatno = itemView.findViewById(R.id.list_Flatno);
}
}
#Override
protected void onStart() {
super.onStart();
adapter.startListening();
}
#Override
protected void onStop() {
super.onStop();
adapter.stopListening();
}
}
Recipet Model
package com.societypay;
public class RecieptModel {
private String Name;
private String Amount;
private String Contact;
private String FlatNo;
private RecieptModel(){}
private RecieptModel(String Name,String Amount,String Contact,String FlatNo){
this.Name=Name;
this.Amount=Amount;
this.Contact=Contact;
this.FlatNo=FlatNo;
}
public String getName() {
return Name;
}
public void setName(String name) {
Name = name;
}
public String getAmount() {
return Amount;
}
public void setAmount(String amount) {
Amount = amount;
}
public String getContact() {
return Contact;
}
public void setContact(String contact) {
Contact = contact;
}
public String getFlatNo() {
return FlatNo;
}
public void setFlatNo(String flatNo) {
FlatNo = flatNo;
}
}

Please use following pojo and try.
public class RecieptModel
{
private String MobileNo;
private String Amount;
private String Flat_no;
private String Name;
public String getMobileNo ()
{
return MobileNo;
}
public void setMobileNo (String MobileNo)
{
this.MobileNo = MobileNo;
}
public String getAmount ()
{
return Amount;
}
public void setAmount (String Amount)
{
this.Amount = Amount;
}
public String getFlat_no ()
{
return Flat_no;
}
public void setFlat_no (String Flat_no)
{
this.Flat_no = Flat_no;
}
public String getName ()
{
return Name;
}
public void setName (String Name)
{
this.Name = Name;
}
#Override
public String toString()
{
return "ClassPojo [MobileNo = "+MobileNo+", Amount = "+Amount+", Flat_no = "+Flat_no+", Name = "+Name+"]";
}
}

Nested object in Json

This is my JSON:
I need to access to extra_services and get the service_name.
I know I can do it directly using Gson but the problem is that I need to use getters and setters because I'm using an adapter inside of a recycler, how can I do that?
here is my adapter class where I need to get the service name
public class ExtraServicesAdapter extends RecyclerView.Adapter<ExtraServicesAdapter.ViewHolder> implements View.OnClickListener
{
private ArrayList<Business> businessList;
private Activity activity;
private int layoutMolde,idb;
public ExtraServicesAdapter(Activity activity, ArrayList<Business> list, int layout)
{
this.activity = activity;
this.businessList = list;
layoutMolde = layout;
}
#Override
public ExtraServicesAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_services_basic, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(ViewHolder holder, int position)
{
if(businessList.get(position).getExtra_services()==null)
{
holder.txtNameServiceBasic.setText("There's nothing to show");
}
holder.txtNameServiceBasic.setText(businessList.get(position).getExtra_services());
}
#Override
public int getItemCount()
{
return businessList.size();
}
#Override
public void onClick(View v)
{
}
public class ViewHolder extends RecyclerView.ViewHolder
{
public TextView txtNameServiceBasic;
public ViewHolder( View itemView)
{
super(itemView);
txtNameServiceBasic = (TextView) itemView.findViewById(R.id.txtNameServiceBasic);
}
}
}
and this is my class where are the getters and setters that I'm using
public class Business {
private Integer id,rating;
private String name, description, cover_url_string, logo_url_string, icon_default,business_name,cover_default,extra_services;
private Boolean status;
public Business(){}
public Business(Integer id,Integer rating,String business_name, String name, String description, String logo_url_string, String cover_default, String icon_default,String cover_url_string,String extra_services) {
this.id = id;
this.name = name;
this.business_name=business_name;
this.description = description;
this.logo_url_string = logo_url_string;
this.cover_url_string = cover_url_string;
this.rating=rating;
this.icon_default=icon_default;
this.cover_default=cover_default;
this.extra_services=extra_services;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Integer getRating() {
return rating;
}
public String getBusiness_name() {
return business_name;
}
public void setBusiness_name(String business_name) {
this.business_name = business_name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getLogo_url_string() {
return logo_url_string;
}
public void setLogo_url_string(String logo_url_string) {
this.logo_url_string = logo_url_string;
}
public String getIcon_default() {
return icon_default;
}
public String getCover_default() {
return cover_default;
}
public String getCover_url_string() {
return cover_url_string;
}
public String getExtra_services() {
return extra_services;
}
public void setExtra_services() {
this.extra_services=extra_services;
}
}

You can add an ExtraServices class that contains a list of ExtraService
ExtraService
public class ExtraService {
private String Id;
private String ServiceName;
public String getId() {
return Id;
}
public void setId(String Id) {
this.Id = Id;
}
public String getServiceName() {
return ServiceName;
}
public void setServiceName(String ServiceName) {
this.ServiceName = ServiceName;
}
ExtraServices
public class ExtraServices {
private List<ExtraService> extraServicesList;
public List<ExtraService> getExtraServicesList() {
return extraServicesList;
}
public void setExtraServicesList(List<ExtraService> extraServicesList) {
this.extraServicesList = extraServicesList;
}
public void add(ExtraService extraService){
if(extraServicesList == null){
extraServicesList = new ArrayList<>();
}
extraServicesList.add(extraService);
}
And in your Business class add getters and setters of ExtraServices
private ExtraServices extraServices;
public ExtraServices getExtraServices () {
return extraServices;
}
public void setExtraServices (ExtraServices extraServices) {
this.extraServices = extraServices;
}
After you have to do the setter process and in your Adapter you should do something like this:
holder.txtNameServiceBasic.setText(businessList.get(position).getExtraServices().getExtraServicesList().get(posistion).getServiceName());

How can i set another data into constructor DataModel in Retrofit in Android

In my application I should load data from server and for this job I use Retrofit library.
In my application i want load string data from server and i should load images from drawable folder .
I can load string from server and show it on textview, but when add images i don't know how can i it?!
DataModel:
public class Retrofit_ColoniesModel {
//Load from server
#SerializedName("id")
private Integer id;
#SerializedName("slug")
private String slug;
#SerializedName("title")
private String title;
#SerializedName("description")
private String description;
#SerializedName("parent")
private Integer parent;
#SerializedName("post_count")
private Integer post_count;
//Load from local
private int[] image;
public Retrofit_ColoniesModel(Integer id, String slug, String title, String description, Integer parent, Integer post_count,
int[] image) {
this.id = id;
this.slug = slug;
this.title = title;
this.description = description;
this.parent = parent;
this.post_count = post_count;
this.image = image;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getSlug() {
return slug;
}
public void setSlug(String slug) {
this.slug = slug;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Integer getParent() {
return parent;
}
public void setParent(Integer parent) {
this.parent = parent;
}
public Integer getPost_count() {
return post_count;
}
public void setPost_count(Integer post_count) {
this.post_count = post_count;
}
public int[] getImage() {
return image;
}
public void setImage(int[] image) {
this.image= image;
}
DataModelResponse:
public class Retrofit_ColoniesModelResponse {
#SerializedName("status")
private String status;
#SerializedName("count")
private int count;
#SerializedName("categories")
private List<Retrofit_ColoniesModel> categories;
public List<Retrofit_ColoniesModel> getCategories() {
return categories;
}
public void setCategories(List<Retrofit_ColoniesModel> categories) {
this.categories = categories;
}
public int getCount() {
return count;
}
public void setCount(int count) {
this.count = count;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
}
Retrofit code in activity:
// Retrofit //////////
Retrofit_ApiInterface apiInterface = Retrofit_ApiClient.getClient().create(Retrofit_ApiInterface.class);
Call<Retrofit_ColoniesModelResponse> call = apiInterface.getResponse();
call.enqueue(new Callback<Retrofit_ColoniesModelResponse>() {
#Override
public void onResponse(Call<Retrofit_ColoniesModelResponse> call, Response<Retrofit_ColoniesModelResponse> response) {
List<Retrofit_ColoniesModel> models = response.body().getCategories();
mAdaper = new ColoniesAdapter(context, models);
colonies_RecyclerView.setAdapter(mAdaper);
}
#Override
public void onFailure(Call<Retrofit_ColoniesModelResponse> call, Throwable t) {
}
});
//////////////////////
I want save images into Array, such as :
final int[] colImages = {
R.drawable.colonies_image_food,
R.drawable.colonies_image_medical,
R.drawable.colonies_image_tecgnolegy,
R.drawable.colonies_image_entertenement,
R.drawable.colonies_image_car,
R.drawable.colonies_image_model,
R.drawable.colonies_image_sport,
};
Adapter:
public class ColoniesAdapter extends RecyclerView.Adapter<ColoniesAdapter.ViewHolder> {
private List<Retrofit_ColoniesModel> mDateSet;
private Context mContext;
private SparseBooleanArray expandState = new SparseBooleanArray();
public ColoniesAdapter(Context context, List<Retrofit_ColoniesModel> dataSet) {
this.mContext = context;
this.mDateSet = dataSet;
for (int i = 0; i < mDateSet.size(); i++) {
expandState.append(i, false);
}
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(mContext).inflate(R.layout.colonies_row, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
holder.colonies_title.setText(mDateSet.get(position).getTitle());
holder.colonies_title.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int pos = holder.getPosition();
Retrofit_ColoniesModel model = mDateSet.get(pos);
v.getContext().startActivity(new Intent(v.getContext(), Category_page.class)
.putExtra("categoryTitle", model.getTitle())
.putExtra("categoryID", model.getId()));
}
});
Glide.with(mContext)
.load(mDateSet.get(position).getImage()[position])
.placeholder(R.drawable.post_image)
.crossFade()
.override(700, 400)
.into(holder.colonies_image);
holder.colonies_image.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int pos = holder.getPosition();
Retrofit_ColoniesModel model = mDateSet.get(pos);
v.getContext().startActivity(new Intent(v.getContext(), Category_page.class)
.putExtra("categoryTitle", model.getTitle())
.putExtra("categoryID", model.getId()));
}
});
holder.colonies_description.setText(mDateSet.get(position).getDescription());
holder.colonies_count.setText("مطالب موجود در کلونی : " + mDateSet.get(position).getPost_count());
holder.expandableLayout.setInterpolator(mDateSet.get(position).getInterpolator());
holder.expandableLayout.setExpanded(expandState.get(position));
holder.expandableLayout.setListener(new ExpandableLayoutListenerAdapter() {
#Override
public void onPreOpen() {
createRotateAnimator(holder.buttonLayout, 0f, 180f).start();
expandState.put(position, true);
}
#Override
public void onPreClose() {
createRotateAnimator(holder.buttonLayout, 180f, 0f).start();
expandState.put(position, false);
}
});
holder.buttonLayout.setRotation(expandState.get(position) ? 180f : 0f);
holder.buttonLayout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(final View v) {
onClickButton(holder.expandableLayout);
}
});
}
private void onClickButton(final ExpandableLayout expandableLayout) {
expandableLayout.toggle();
}
#Override
public int getItemCount() {
return mDateSet.size();
}
public void remove(int position) {
mDateSet.remove(position);
notifyItemRemoved(position);
}
public void clear() {
mDateSet.clear();
notifyDataSetChanged();
}
public void add(List<Retrofit_ColoniesModel> models) {
mDateSet.addAll(models);
notifyDataSetChanged();
}
public void update(List<Retrofit_ColoniesModel> models) {
mDateSet.clear();
mDateSet.addAll(models);
notifyDataSetChanged();
}
public static class ViewHolder extends RecyclerView.ViewHolder {
private TextView colonies_title, colonies_description, colonies_count;
private ImageView colonies_image;
private ExpandableLinearLayout expandableLayout;
private RelativeLayout buttonLayout;
public ViewHolder(View itemView) {
super(itemView);
colonies_title = (TextView) itemView.findViewById(R.id.colonies_colony_title_text);
colonies_image = (ImageView) itemView.findViewById(R.id.colonies_cover_image);
colonies_description = (TextView) itemView.findViewById(R.id.colonies_expandable_description_text);
colonies_count = (TextView) itemView.findViewById(R.id.colonies_count_title_text);
buttonLayout = (RelativeLayout) itemView.findViewById(R.id.colonies_expandable_button);
expandableLayout = (ExpandableLinearLayout) itemView.findViewById(R.id.colonies_expandable_layout);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
/* v.getContext().startActivity(new Intent(v.getContext(), PostShow_page.class)
.putExtra("title", model.getTitle())
.putExtra("image", model.getThumbnail()));*/
}
});
}
}
public ObjectAnimator createRotateAnimator(final View target, final float from, final float to) {
ObjectAnimator animator = ObjectAnimator.ofFloat(target, "rotation", from, to);
animator.setDuration(300);
animator.setInterpolator(Utils.createInterpolator(Utils.LINEAR_INTERPOLATOR));
return animator;
}
}
I don't know how can i add int[] into my constructor, because in retrofit fill the constructor with List<Retrofit_ColoniesModel> models = response.body().getCategories(); .
How can i fix my issue? I really need this tutorial, please help me. Thanks all <3

If the array of images is static (don't depend on the server) then you could just do the following:
public class Retrofit_ColoniesModel {
...
private static final int[] colImages = {
R.drawable.colonies_image_food,
R.drawable.colonies_image_medical,
R.drawable.colonies_image_tecgnolegy,
R.drawable.colonies_image_entertenement,
R.drawable.colonies_image_car,
R.drawable.colonies_image_model,
R.drawable.colonies_image_sport,
};
But if this array is not static (depends on the server response) then I suggest you to map to an array of Strings that describe each image, and the server should respond with those Strings, for example:
"images":["IMAGE1", "IMAGE2"]
And then have a helper class that could map between those string keys to the actual R.drawable resources.
Let me know if you need sample code.

Non-static Nested Classes (Inner Classes)
Non-static nested classes in Java are also called inner classes. Inner classes are associated with an instance of the enclosing class. Thus, you must first create an instance of the enclosing class to create an instance of an inner class. Here is an example inner class definition:
public class Outer {
public class Inner {
}
}
Here is how you create an instance of the Inner class:
Outer outer = new Outer();
Outer.Inner inner = outer.new Inner();
Notice how you put new after the reference to the outer class in order to create an instance of the inner class.
Non-static nested classes (inner classes) have access to the fields of the enclosing class, even if they are declared private. Here is an example of that:

Change data inside adapter for non persistent Model fields in Realm

This is my Model Class where isChecked is non persistent.
public class MyModel extends RealmObject {
private String name;
private String destination;
#Ignore
private boolean isChecked;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDestination() {
return destination;
}
public void setDestination(String destination) {
this.destination = destination;
}
public boolean isChecked() {
return isChecked;
}
public void setChecked(boolean isChecked) {
this.isChecked = isChecked;
}
}
In my adapter I have to change the value of isChecked when user is selecting items in the list.
#Override
public void onBindViewHolder(ViewHolder holder, int position) {
holder.Name.setText(myModels.get(position).getName());
holder.Destination.setVisibility(View.VISIBLE);
holder.Destination.setText(myModels.get(position).getDestination());
updateCheckedState(holder, myModels.get(position), false);
holder.label.setOnClickListener(v -> {
myModels.get(position).setChecked(!myModels.get(position).isChecked());
updateCheckedState(holder, myModels.get(position), true);
});
}
But the value remains the same. It was working perfectly before when I was not using Realm.

Override the onResume()
Dont forget to super.onResume();

i want to sorting my listview by user Android

i have 2 classes to show some data in list view
but i want make option for users to sort this list view
this is adapter class
public class CustomListViewAdapter extends BaseAdapter {
private Activity activity;
private Book[] data;
private static LayoutInflater inflater=null;
public CustomListViewAdapter(Activity a, Book list[]) {
activity = a;
data=list;
inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getBookId(int position){
return data[position].getId();
}
public int getCount() {
return data.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View vi=convertView;
if(convertView==null)
vi = inflater.inflate(R.layout.list_row, null);
TextView row_id =(TextView)vi.findViewById(R.id.row_id);
TextView name=(TextView)vi.findViewById(R.id.title);
TextView descp = (TextView) vi.findViewById(R.id.artist);
TextView note_type = (TextView) vi.findViewById(R.id.row_note_type);
ImageView image=(ImageView)vi.findViewById(R.id.image);
row_id.setText(String.valueOf(data[position].getId()));
name.setText(data[position].getTitle());
descp.setText(data[position].getContent());
//row_id.setText(data[position].getId());
note_type.setText(data[position].getType());
//image.setImageResource(R.drawable.subway);
if(data[position].getImage().toString().equals("Facebook")){
image.setImageResource(R.drawable.facebook);
}else if(data[position].getImage().toString().equals("skype")){
image.setImageResource(R.drawable.skype);
}else if(data[position].getImage().toString().equals("Subway")){
image.setImageResource(R.drawable.subway);
}else if(data[position].getImage().toString().equals("Book")){
image.setImageResource(R.drawable.book);
}
return vi;
}
}
and this is book class
public class Book {
private int id;
private String title;
private String content; // this is content of table
private String image; // choosing images
private String type; // type of table ( note or task)
private int archived; // Archive table (true or false)
private int check; // make overline when finish (true or false)
private int protect; // protect the table with password (true or false)
private String password; // password of table if it was protected
private String date_added;
public Book() {}
public Book(String title, String content, String image, String type, int archived,
int check, int protect, String password) {
this.title = title;
this.content = content;
this.image = image;
this.type = type;
this.archived = archived;
this.check = check;
this.protect = protect;
this.password = password;
}
// ---- setter
public void setId(int id){
this.id = id;
}
public void setTitle(String title){
this.title = title;
}
public void setContent(String content){
this.content = content;
}
public void setImage(String image){
this.image = image;
}
public void setType(String type){
this.type = type;
}
public void setArchived(int archived){
this.archived = archived;
}
public void setCheck(int check){
this.check = check;
}
public void setProtect(int protect){
this.protect = protect;
}
public void setPassword(String password){
this.password = password;
}
public void setDate_added(String date_added){
this.date_added = date_added;
}
// --- getter ---
public int getId(){
return id;
}
public String getTitle(){
return title;
}
public String getContent(){
return content;
}
public String getImage(){
return image;
}
public String getType(){
return type;
}
public int getArchived(){
return archived;
}
public int getCheck(){
return check;
}
public int getProtect(){
return protect;
}
public String getPassword(){
return password;
}
public String getDate_added() {
return date_added;
}
public String toString(){
return "Book >> id:"+id+" | title:"+title+" | author:";
}
}
and this is method for showing the data in list view but BookTable is class of connect and get data from sqlite
public void list_Books() {
BookTable bt = new BookTable(getActivity());
adapter = new CustomListViewAdapter(getActivity(), bt.getAllBooks());
list.setAdapter(adapter);
list.setOnItemLongClickListener(new OnItemLongClickListener() {
public boolean onItemLongClick(AdapterView<?> parent, View arg1,int pos, long id) {
selected = adapter.getBookId(pos);
row_type = (TextView) arg1.findViewById(R.id.row_note_type);
return false;
}
});
registerForContextMenu(list);
}
i want to know how can i sorting this data by objects of my Book class
please i want speed answer

One approach of sorting is for your object Book to implement Comparable interface:
public class Book implements Comparable<Book>{
private int id;
#Override
public int compareTo(Book another) {
if(this.id >= another.id)
return 1;
return -1;
}
}
If you want to sort after you query the data from database you can just call the Collections sort() method:
Collections.sort(list);
If you dont want to implement Comparable interface, you can just create a Comparator and call the following method of Collections:
Collections.sort(list, new Comparator<Book>() {
#Override
public int compare(Book lhs, Book rhs) {
if(lhs.id >= rhs.id)
return 1;
return -1;
}
});
To reverse the order (as frequently it is requiredfor sorting):
Collections.sort(list, Collections.reverseOrder());
After you sort the list dont forget to notify the adapter to refresh the view:
adapter.notifyDataSetChanged();

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