Am trying to pass data from list fragment in an activity to a new activity and getting null...
Here is my recyclerview adapter code...
package com.doctorapp.doctor;
import android.app.LauncherActivity;
import android.content.Context;
import android.content.Intent;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.TextView;
import android.widget.Toast;
import android.util.Log;
import com.doctorapp.doctor.MyPatientsFragment.OnListFragmentInteractionListener;
import com.doctorapp.doctor.dummy.DummyContent.DummyItem;
import java.util.List;
/**
* {#link RecyclerView.Adapter} that can display a {#link DummyItem} and makes a call to the
* specified {#link OnListFragmentInteractionListener}.
* TODO: Replace the implementation with code for your data type.
*/
public class MypatientsRecyclerViewAdapter extends RecyclerView.Adapter<MypatientsRecyclerViewAdapter.ViewHolder> {
private final List<MyPatientsItem> mValues;
private final OnListFragmentInteractionListener mListener;
private Context context;
public MypatientsRecyclerViewAdapter(List<MyPatientsItem> items, OnListFragmentInteractionListener listener) {
mValues = items;
mListener = listener;
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.fragment_patients, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
holder.mypatientsItem = mValues.get(position);
holder.txtPatientName.setText(mValues.get(position).getPatient_name());
holder.mView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int patient_id = mValues.get(position).getPatient_id();
Toast.makeText(v.getContext(), "My Position : "+ patient_id, Toast.LENGTH_LONG).show();
Intent i = new Intent(context, PatientProfile.class);
i.putExtra("patient_id", patient_id);
context.startActivity(i);
if (null != mListener) {
//Toast.makeText(v.getContext(), "Am clicked.hey", Toast.LENGTH_LONG).show();
// Notify the active callbacks interface (the activity, if the
// fragment is attached to one) that an item has been selected.
mListener.onListFragmentInteraction(holder.mypatientsItem);
//Toast.makeText(v.getContext(), "Am clicked.", Toast.LENGTH_LONG).show();
}
}
});
}
#Override
public int getItemCount() {
return mValues.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public final View mView;
public final TextView txtPatientId;
public final TextView txtPatientName;
public MyPatientsItem mypatientsItem;
public ViewHolder(View view) {
super(view);
context = view.getContext();
mView = view;
txtPatientId = (TextView) view.findViewById(R.id.patient_id);
txtPatientName = (TextView) view.findViewById(R.id.patient_name);
}
#Override
public String toString() {
return super.toString() + " '" + txtPatientName.getText() + "'";
}
}
}
The list is populating fine and when I click it is also giving me toast with the right ID that needs to be passed so that the next activity can populate data for the right patient. In the second activity where I want to get data, it is giving null in all the ways I tried...
here is the code...
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_patient_profile);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
//String patient_id_str = (String) savedInstanceState.getSerializable("patient_id");
Intent intent = getIntent();
String patient_id_str = intent.getStringExtra("patient_id");
Toast.makeText(getApplicationContext(), "Load Patient : " + patient_id_str, Toast.LENGTH_LONG).show();
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
it always returns me null... am new to android and learning stuff with tutorials online so kind of hard for me to understand why it is not happening as many posts on the internet says this should work. please advise me on where am making mistake.
In intent extras, you are adding integer value, so you need to get the same in the target activity.
Check this out:
int patient_id_str = intent.getIntExtra("patient_id");
You are doing very perfect while sending data through Intent,
int patient_id = mValues.get(position).getPatient_id();
Intent i = new Intent(context, PatientProfile.class);
i.putExtra("patient_id", patient_id);
context.startActivity(i);
But while receiving data you have to get it through Bundle,
Bundle extras = getIntent().getExtras();
String patient_id_atr = (String) extras.get("patient_id");
dont Use Context Use getActivity;
And putExt Need setFlag
Related
I have an Activity with a RecyclerView which display Livedata from a room database.
My aim is to start a new Activity with more data from the room database when the user is clicking on the corresponding item in the RecyclerView.
For that I overwrote the onClick() method in the adapter of the RecylcerView. Each object of the RecyclerView has a Id, I need that Id to get the corresponding data from the database. So I passed the Id from the Adapter to the Activity.
To search an element by Id in the database that I need the ViewModel object in the MainAcitivty. It is initialized in the onCreate() of the Activity. The method I called in the Adapter is outside the onCreate() and I get a null object reference exception when I try to use it.
How can I use the ViewModel outside of the onCreate() method of the Activity? Or is there another way to search for the element in the database?
Thank you!
The Adapter class:
In the onClick() method is the relevant part.
package com.example.fillmyplate.activities;
import android.content.Context;
import android.graphics.Color;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.example.fillmyplate.R;
import com.example.fillmyplate.entitys.Recipe;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
class RecipeAdapter extends RecyclerView.Adapter<RecipeAdapter.RecipeViewHolder> {
private static final String TAG = "RecipeAdapter";
private List<Recipe> mRecipes = new ArrayList<>();
private LayoutInflater mInflater;
private Context mContext;
private MainActivity mainActivity = new MainActivity();
private static int backGroundIndex = 0;
class RecipeViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public final TextView recipeTitleItemView;
ImageView imageView;
public RecipeViewHolder(View itemView) {
super(itemView);
recipeTitleItemView = itemView.findViewById(R.id.name);
imageView = itemView.findViewById(R.id.card_image_view);
Log.d(TAG, "RecipeViewHolder: index " + backGroundIndex);
if (backGroundIndex == 0) {
imageView.setImageResource(R.drawable.background_green);
backGroundIndex++;
} else if (backGroundIndex == 1 ) {
imageView.setImageResource(R.drawable.background_red);
backGroundIndex++;
} else if (backGroundIndex == 2 ) {
imageView.setImageResource(R.drawable.background_blue);
backGroundIndex = 0;
}
itemView.setOnClickListener(this);
}
#Override
public void onClick(View v) {
int position = getAdapterPosition();
// This should be the mistake.
mainActivity.startKnownRecipeActivity(position);
}
}
public RecipeAdapter(Context context) {
mInflater = LayoutInflater.from(context);
this.mContext = context;
}
#NonNull
#Override
public RecipeAdapter.RecipeViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
// Inflate an item view
View mRecipeTitleView = mInflater.inflate(
R.layout.recipe_list_row, parent, false);
return new RecipeViewHolder(mRecipeTitleView);
}
// Get data into the corrsponding views
#Override
public void onBindViewHolder(RecipeAdapter.RecipeViewHolder holder, int position) {
Log.d(TAG, "onBindViewHolder: " + position);
Recipe currentRecipe = mRecipes.get(position);
Log.d(TAG, "onBindViewHolder: setText " + currentRecipe);
holder.recipeTitleItemView.setText(currentRecipe.getTitle());
}
#Override
public int getItemCount() {
return mRecipes.size();
}
public void setRecipes(List<Recipe> recipes) {
this.mRecipes = recipes;
Log.d(TAG, "setRecipes: notifydataChanged" );
notifyDataSetChanged();
}
}
MainActivity:
package com.example.fillmyplate.activities;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.media.Image;
import android.os.Build;
import android.os.Bundle;
import com.example.fillmyplate.R;
import com.example.fillmyplate.entitys.Recipe;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.cardview.widget.CardView;
import androidx.lifecycle.LiveData;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProviders;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import androidx.room.Room;
import androidx.room.RoomDatabase;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
public static final String TAG = "MainAcitivity";
private static final int NEW_RECIPE_ACTIVITY_REQUEST_CODE = 1;
private RecyclerView mRecyclerView;
private RecipeViewModel mRecipeViewmodel;
private RecyclerView.LayoutManager layoutManager;
//private final List<String> mTitleList = new LinkedList<>();
//NEU for adapter
private List<String> recipeDataList = new ArrayList<>();
RecipeRoomDatabase db;
#RequiresApi(api = Build.VERSION_CODES.N)
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// RECYCLER VIEW STUFF
mRecyclerView = findViewById(R.id.recycler_view1);
mRecyclerView.setHasFixedSize(true);
// user linerar layout manager
layoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(layoutManager);
// specify an adapter
final RecipeAdapter recipeAdapter = new RecipeAdapter(this);
//mAdapter = new RecipeAdapter(this, mTitleList);
mRecyclerView.setAdapter(recipeAdapter);
mRecipeViewmodel = ViewModelProviders.of(this).get(RecipeViewModel.class);
mRecipeViewmodel.getAllRecipes().observe(this, new Observer<List<Recipe>>() {
#Override
public void onChanged(List<Recipe> recipes) {
Log.d(TAG, "onChanged: " + recipes.toString());
for (Recipe rec : recipes) {
Log.d(TAG, "onChanged: " + rec.getTitle());
Log.d(TAG, "onChanged: recipe id " + rec.getUid());
}
recipeAdapter.setRecipes(recipes);
}
});
// DB
db = Room.databaseBuilder(getApplicationContext(), RecipeRoomDatabase.class, "appdb").build();
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, AddRecipeActivity.class);
startActivityForResult(intent, NEW_RECIPE_ACTIVITY_REQUEST_CODE);
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Log.d(TAG, "onActivityResult: ");
if (requestCode == NEW_RECIPE_ACTIVITY_REQUEST_CODE && resultCode == RESULT_OK) {
Log.d(TAG, "onActivityResult: " + data.getStringExtra(AddRecipeActivity.EXTRA_REPLY));
// mTitleList.add(data.getStringExtra(AddRecipeActivity.EXTRA_REPLY));
Recipe rec = new Recipe(data.getStringExtra(AddRecipeActivity.EXTRA_REPLY));
mRecipeViewmodel.insert(rec);
} else {
Toast.makeText(
getApplicationContext(),
"saved",
Toast.LENGTH_LONG).show();
}
}
public void startKnownRecipeActivity(int position) {
Log.d(TAG, "startKnownRecipeActivity: Position " + position);
LiveData<List<Recipe>> recipe = mRecipeViewmodel.findById(position);
if (recipe.getValue().size() > 1) {
Log.d(TAG, "startKnownRecipeActivity: Error database found more than one recipe.");
} else {
Log.d(TAG, "startKnownRecipeActivity: Start activity with recipe " + recipe.getValue().get(0).getTitle());
}
}
}
The thing you need to do is to use a call back to send position back to activity.
To make sure that view position is correct you need to override 3 functions in RecyclerView Adapter:
#Override
public int getItemCount() {
return filteredUsers.size();
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public int getItemViewType(int position) {
return position;
}
For the Callback just create an Interface:
public interface AdapterListener {
void onClick(int id);
void onClick(ViewModel object);
}
Make a method in your Recycler Adapter:
private AdapterListener adapterListener;
public void setAdapterListener(AdapterListener mCallback) {
this.adapterListener = mCallback;
}
Implement this Interface on your Activity then you will get both methods of the interface.
public class MainActivity extends AppCompatActivity implements AdapterListener{
Register the listener by calling the setAdapterListener method in your activity after the initialization of the RecyclerView
adapterObject.setAdapterListener(MainActivity.this);
Then the last thing you need to do is call interface method in your item onClickListener, where u can either pass the complete model or just the id of the model
adapterListener.onClick(modelObject.getId());
OR
adapterListener.onClick(modelObject);
I have a expense request kind of thing for my admin app. What i want to achieve is when the user clicks the approve button, the text on it should get changed to Approved and reject button should disappear and vice versa.
I am unable to achieve this, I have tried everything but getting even weirder outputs with each attempt to fix this. Please attach a reason with your changes as it would help me. Thanks
This is my code
package com.emlocks.timeaccess;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class Expenses extends AppCompatActivity {
NetworkController networkController;
Bundle ss;
private SharedPreferences prefs;
List<ExpenseP> expensep = new ArrayList<>();
RecyclerView rvRegs;
Gson gson = new Gson();
HashMap<Integer, String> hmap = new HashMap<>();
public static final String TAG = "Expenses";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_expenses);
ss = savedInstanceState;
networkController = RetrofitClientInstance.getRetrofitInstance().create(NetworkController.class);
prefs = getSharedPreferences(getResources().getString(R.string.prefs), MODE_PRIVATE);
rvRegs = findViewById(R.id.rvExpense);
networkController = RetrofitClientInstance.getRetrofitInstance().create(NetworkController.class);
networkController.getexpense("Bearer " + prefs.getString("token", null), prefs.getString("email", null)).enqueue(new Callback<JsonObject>() {
#Override
public void onResponse(Call<JsonObject> call, Response<JsonObject> response) {
if (response.code() == 200) {
JsonArray array = response.body().getAsJsonArray("data");
System.out.println(array);
Log.d(TAG, "onResponse: " + array);
for (JsonElement j :
array) {
expensep.add(gson.fromJson(j, ExpenseP.class));
}
rvRegs.setAdapter(new ExpenseAdapter());
rvRegs.setLayoutManager(new LinearLayoutManager(Expenses.this));
} else {
Log.d(TAG, "onResponse: Unsuccessful" + response.errorBody());
}
}
#Override
public void onFailure(Call<JsonObject> call, Throwable t) {
Log.d(TAG, "onFailure: " + t.getMessage());
Log.d(TAG, "onFailure: " + t.getStackTrace());
Log.d(TAG, "onFailure: " + t.getLocalizedMessage());
}
});
}
class ExpenseAdapter extends RecyclerView.Adapter<ExpenseAdapter.VH> {
#NonNull
#Override
public VH onCreateViewHolder(#NonNull ViewGroup viewGroup, int i) {
return new VH(LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_expense, viewGroup, false));
}
#Override
public void onBindViewHolder(#NonNull final VH vh, int i) {
final ExpenseP ex = expensep.get(i);
vh.etFN.setText(ex.getUserId().split("-")[1]);
vh.etnm.setText(ex.getDate());
vh.etnm1.setText(ex.getAmount());
vh.leaves.setText(ex.getRemark());
vh.u_name.setText(ex.getName());
vh.u_department.setText(ex.getDepName());
if (ex.getStatus() == null) {
View.OnClickListener approveRejectClickListner = new View.OnClickListener() {
#Override
public void onClick(View v) {
int status = 0;
switch (v.getId()) {
case R.id.btnApprove:
status = 1;
vh.btnReject.setEnabled(true);
break;
case R.id.btnReject:
status = 0;
vh.btnApprove.setEnabled(true);
break;
}
JsonObject body = new JsonObject();
body.add("expense_id", new JsonPrimitive(ex.getExpenseId()));
body.add("status", new JsonPrimitive(status));
body.add("user_id", new JsonPrimitive(ex.getUserId()));
networkController.patchexpense("Bearer " + prefs.getString("token", null), prefs.getString("email", null), body).enqueue(new Callback<JsonObject>() {
#Override
public void onResponse(Call<JsonObject> call, Response<JsonObject> response) {
if (response.code() == 200) {
Toast.makeText(Expenses.this, "Success", Toast.LENGTH_SHORT).show();
}
}
#Override
public void onFailure(Call<JsonObject> call, Throwable t) {
}
});
if(vh.btnApprove.isPressed()==true)
{
vh.btnApprove.setVisibility(View.GONE);
}
else if (vh.btnReject.isPressed()==true){
vh.btnReject.setVisibility(View.GONE);
}
}
};
vh.btnApprove.setOnClickListener(approveRejectClickListner);
vh.btnReject.setOnClickListener(approveRejectClickListner);
}
else
if (ex.getStatus() != 1) {
vh.btnReject.setText("Rejected");
vh.btnApprove.setVisibility(View.VISIBLE);
} else {
vh.btnApprove.setText("Approved");
vh.btnReject.setVisibility(View.VISIBLE);
}
}
#Override
public int getItemCount() {
return expensep.size();
}
class VH extends RecyclerView.ViewHolder {
TextView etFN, etnm, etnm1, leaves,u_name,u_department;
Button btnApprove, btnReject;
public VH(#NonNull View itemView) {
super(itemView);
etFN = itemView.findViewById(R.id.U_code);
etnm = itemView.findViewById(R.id.date);
etnm1 = itemView.findViewById(R.id.type);
leaves = itemView.findViewById(R.id.msg);
u_name=itemView.findViewById(R.id.U_name);
u_department=itemView.findViewById(R.id.U_dep);
btnApprove = itemView.findViewById(R.id.btnApprove);
btnReject = itemView.findViewById(R.id.btnReject);
}
}
}
}
One approach to do this would be to utilize multiple ViewHolders and corresponding view types.
When a user approves an item, you handle that approval click by updating the item in question, and then utilizing notifyItemChanged(getAdapterPosition()) to tell the Adapter that the item has changed.
You can override getItemViewType and have it return a layout depending on it's state. For example:
abstract class BaseViewHolder extends ViewHolder {
// Protected common views, like name, etc.
BaseViewHolder(View itemView) {
super(itemView);
// set up common views
}
public final void bindTo(ExpenseP expense) {
// set up common views
onBind(expense);
}
protected abstract void onBind(ExpenseP expense);
}
class AcceptedExpenseViewHolder extends BaseViewHolder {
// Protected accepted-only views...
BaseViewHolder(View itemView) {
super(itemView);
// set up accepted-only views...
}
#Override
protected void onBind(ExpenseP expense) {
// bind accepted-only views...
}
}
// Another class for RejectedExpenseViewHolder
// Another class for DefaultExpenseViewHolder (neither accepted or rejected)
Then, define a layout for each. Android IDs don't have to be globally unique. We can leverage this by utilizing the same id for common fields. For example, where we want the name to go is always R.id.expense_name or whatever.
accepted_expense_item.xml
rejected_expense_item.xml
default_expense_item.xml
Each of these layouts will have a unique identifier, which we can utilize as the ViewType inside of getItemViewType and later in onCreateViewHolder, instead of specifying our own:
int getItemViewType(position) {
ExpenseP item = data.get(position);
if (item.getStatus() == null) return R.layout.default_expense_item;
// ... etc.
}
BaseViewHolder onCreateViewHolder(...) {
View itemView = LayoutInflater.from(parent.getContext())
.inflate(viewType, parent, false);
switch (viewType) {
case R.layout.accepted_expense_item:
return new AcceptedExpenseViewHolder(itemView)
// etc.
}
}
If you want to propagate clicks to update item state, you'd pass in some kind of listener to your ViewHolder, and update state appropriately when it's called. Then you can notify your adapter that a state change occurred. For example:
interface DefaultListener {
void onAccepted(int position);
void onRejected(int position);
}
class DefaultExpenseViewHolder extends BaseViewHolder {
// Protected default-only views...
BaseViewHolder(View itemView, DefaultListener listener) {
super(itemView);
Button accepted = findViewById(R.id.accepted);
accepted.setOnClickListener(v -> listener.onAccepted(getAdapterPosition()));
}
//...
}
This will propagate it up to wherever Listener is defined. For example, in the adapter's onCreateViewHolder you could have:
switch (viewType) {
case R.layout.accepted_expense_item:
return new AcceptedExpenseViewHolder(itemView, this)
}
And have Adapter implement the listener. You could then, when invoked, update the status appropriately and then notify the adapter that a change happened.
For example:
void onAccepted(int position) {
ExpenseP item = data.get(position);
networkControllerStuff.accept(item, response -> {
// Check status, and update appropriately.
// Remember to replace the item in data with an updated item.
// And then:
notifyItemChanged(position)
})
}
TL;DR There's more things here I can think to handle, but the general approach I'm trying to get across here is to use multiple viewtypes to your advantage here, instead of trying to manipulate some global view.
I want to add intent in sliding view pager. As I click different pages of the sliding view pager, a different activity must be called but I can't find the solution.
I have added image text and description in the view pager and a button is there in the layout
I think this would involve the use of page selected but earlier when I used onpageselected by using the position it opens up the page even if we are not clicking but I want to use intent here.
Adapterclass
package com.android.msahakyan.expandablenavigationdrawer.adapter;
import android.support.annotation.NonNull;
import android.support.v4.view.PagerAdapter;
import android.support.v7.widget.CardView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.android.msahakyan.expandablenavigationdrawer.R;
import com.android.msahakyan.expandablenavigationdrawer.fragment.CardAdapter;
import com.android.msahakyan.expandablenavigationdrawer.fragment.CardItemString;
import java.util.ArrayList;
import java.util.List;
/**
* Created by tanis on 21-06-2018.
*/
public class CardPagerAdapterS extends PagerAdapter implements CardAdapter {
private List<CardView> mViews;
private List<CardItemString> mData;
private float mBaseElevation;
public CardPagerAdapterS() {
mData = new ArrayList<>();
mViews = new ArrayList<>();
}
public void addCardItemS(CardItemString item) {
mViews.add(null);
mData.add(item);
}
public float getBaseElevation() {
return mBaseElevation;
}
#Override
public CardView getCardViewAt(int position) {
return mViews.get(position);
}
#Override
public int getCount() {
return mData.size();
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
View view = LayoutInflater.from(container.getContext())
.inflate(R.layout.adapter, container, false);
container.addView(view);
bind(mData.get(position), view);
CardView cardView = (CardView) view.findViewById(R.id.cardView);
if (mBaseElevation == 0) {
mBaseElevation = cardView.getCardElevation();
}
cardView.setMaxCardElevation(mBaseElevation * MAX_ELEVATION_FACTOR);
mViews.set(position, cardView);
return view;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
mViews.set(position, null);
}
private void bind(CardItemString item, View view) {
TextView titleTextView = (TextView) view.findViewById(R.id.titleTextView);
TextView contentTextView = (TextView) view.findViewById( R.id.contentTextView);
ImageView imageView=(ImageView) view.findViewById( R.id.image12 ) ;
titleTextView.setText(item.getTitle());
contentTextView.setText(item.getText());
imageView.setImageResource( item.getImages() );
}
}
FragmentAction
package com.android.msahakyan.expandablenavigationdrawer.fragment;
import android.content.Context;
import android.content.Intent;
import android.graphics.Paint;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.FloatingActionButton;
import android.support.v4.app.Fragment;
import android.support.v4.content.res.ResourcesCompat;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
//import android.support.v7.widget.LinearLayoutManager;
//import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import com.android.msahakyan.expandablenavigationdrawer.R;
import com.android.msahakyan.expandablenavigationdrawer.Registration;
import com.android.msahakyan.expandablenavigationdrawer.adapter.CardPagerAdapterS;
import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import in.goodiebag.carouselpicker.CarouselPicker;
import technolifestyle.com.imageslider.FlipperLayout;
import technolifestyle.com.imageslider.FlipperView;
/**
* A simple {#link Fragment} subclass.
* Use the {#link FragmentAction#newInstance} factory method to
* create an instance of this fragment.
*/
public class FragmentAction extends Fragment {
ViewPager mViewPager;
CardPagerAdapterS mCardAdapter;
ShadowTransformer mCardShadowTransformer;
private Context context;
ViewPager viewPager;
String titlesText [] = {" Website Design", " Digital Marketing", " Domain Registration", "Graphics Design", " Mobile Apps", " Server Hosting",
" Software Development", " Content Marketing", " Security (SSl)"};
String detailsArray [] = {
"Your website is your digital home. We create, design, redesign, develop, improvise, and implement. We make beautiful websites",
"We help your business reach potential customers on every possible digital device through all possible media channels ",
"To launch your website the first thing you need is the domain name. You can choose your domain name with us here ",
"We generate creative solutions and can create a wide range of graphic for your clients which match their business ",
"We are mobile. And we make you mobile. We make responsive websites and mobile apps which compliment your business ",
"When you are hosting your website in the India you will benefit from a higher ping rate and lowest latency ",
"Our team is competent at coding web apps with keen attention to detail & intuitive functionality that is high on design & creativity",
"Content is the heart of your digital presence. We create the right content with the right focus for your business",
"Secure your site with the world's leading provider of online security and get these exclusive features at no added cost",
};
int[] images = {R.drawable.website_design, R.drawable.digita,R.drawable.domain_registration,R.drawable.graphic,
R.drawable.mob,R.drawable.server,R.drawable.software_development,R.drawable.ontent,R.drawable.ssl};
private static final String KEY_MOVIE_TITLE = "key_title";
public FragmentAction() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment.
*
* #return A new instance of fragment FragmentAction.
*/
public static FragmentAction newInstance(String movieTitle) {
FragmentAction fragmentAction = new FragmentAction();
Bundle args = new Bundle();
args.putString(KEY_MOVIE_TITLE, movieTitle);
fragmentAction.setArguments(args);
return fragmentAction;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
View v = inflater.inflate(R.layout.fragment_action,container,false);
TextView txt = (TextView)v.findViewById( R.id.textView12 );
txt.setText("\u25BA Creative & Dedicated Team");
TextView txt1 = (TextView)v.findViewById( R.id.textView13 );
txt1.setText("\u25BA Affordable Cost");
TextView txt2 = (TextView)v.findViewById( R.id.textView14 );
txt2.setText("\u25BA Maintain Long Relationship");
TextView txt3 = (TextView)v.findViewById( R.id.textView15 );
txt3.setText("\u25BA Timely Deliverly ");
context = this.getContext();
mViewPager = (ViewPager)v.findViewById(R.id.viewpager1);
mCardAdapter = new CardPagerAdapterS();
for (int i=0; i<titlesText.length; i++){
mCardAdapter.addCardItemS(new CardItemString( titlesText[i], detailsArray[i],images[i]));
}
mCardShadowTransformer = new ShadowTransformer(mViewPager, mCardAdapter);
mViewPager.setAdapter(mCardAdapter);
mViewPager.setPageTransformer(false, mCardShadowTransformer);
mViewPager.setOffscreenPageLimit(3);
viewPager = (ViewPager)v.findViewById( R.id.viewpager );
ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter( this.getContext() );
viewPager.setAdapter( viewPagerAdapter );
Timer timer = new Timer( );
timer.scheduleAtFixedRate( new Mytime(),2000,4000 );
FloatingActionButton floatingActionButton = (FloatingActionButton)v.findViewById( R.id.floatingActionButton );
floatingActionButton.setOnClickListener( new View.OnClickListener() {
#Override
public void onClick(View view) {
startActivity( new Intent( getActivity(),Registration.class ) );
}
} );
return v;
}
public class Mytime extends TimerTask{
#Override
public void run() {
getActivity().runOnUiThread( new Runnable() {
#Override
public void run() {
if(viewPager.getCurrentItem() == 0) {
viewPager.setCurrentItem( 1 );
}
else if (viewPager.getCurrentItem()== 1){
viewPager.setCurrentItem( 2 );
}
else if (viewPager.getCurrentItem()== 2){
viewPager.setCurrentItem( 3 );
}
else if (viewPager.getCurrentItem()== 3){
viewPager.setCurrentItem( 4 );
}
else {
viewPager.setCurrentItem(0);
}
}
} );
}
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
Drawable movieIcon = ResourcesCompat.getDrawable(getResources(), R.drawable.webdesign, getContext().getTheme());
String movieTitle = getArguments().getString(KEY_MOVIE_TITLE);
}
}
first of all onPageSelected listener is not really good idea in this case, because it is invoked every time when viewpager' current position changes (it's good for setting toolbar title, for example).
You can add another collection for Activities which can be invoked in CardPagerAdapterS, for example:
....
private List<CardItemString> mData;
private List<Class<? extends Activity> mActivities;
and use them to create click listener in order to open activities:
#Override
public Object instantiateItem(ViewGroup container, int position) {
View view = LayoutInflater.from(container.getContext())
.inflate(R.layout.adapter, container, false);
container.addView(view);
bind(mData.get(position), view);
CardView cardView = (CardView) view.findViewById(R.id.cardView);
if (mBaseElevation == 0) {
mBaseElevation = cardView.getCardElevation();
}
cardView.setMaxCardElevation(mBaseElevation * MAX_ELEVATION_FACTOR);
cardView.setOnCLickListener(v-> {
context.startActivity(new Intent(context, mActivities.get(position));
});
mViews.set(position, cardView);
return view;
}
I want to add a button for each item in the Firebase recycler view.
I've created the button, it's being showed, and i'm receiving the Toast when I press it.
But - How can I get the relevant item on it's list ?
For example - When I press the 'DELETE' I want to delete that certain mission 'aspodm'. (Sorry for the large picture, how do I make it smaller?)
This is how the database looks like (vfPvsk... is the user id, and 773f... is random uuid for mission id):
And that is the code of the relevant fragment. (The Toast when clicking the button is activated - I just don't know how to get to the relevant mission in order to delete it)
package com.airpal.yonatan.airpal;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.firebase.ui.database.FirebaseRecyclerAdapter;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.Query;
/**
* A simple {#link Fragment} subclass.
*/
public class PendingFragment_User extends Fragment {
private String TAG = "dDEBUG";
private RecyclerView mPendingList;
private DatabaseReference mMissionsDb;
private FirebaseAuth mAuth;
private String mCurrent_user_id;
private View mMainView;
Query queries;
public PendingFragment_User() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mMainView = inflater.inflate(R.layout.fragment_pending_user, container, false);
mPendingList = (RecyclerView)mMainView.findViewById(R.id.pending_recycler_user);
mAuth = FirebaseAuth.getInstance();
mCurrent_user_id = mAuth.getCurrentUser().getUid();
mMissionsDb = FirebaseDatabase.getInstance().getReference().child("Missions").child(mCurrent_user_id);
queries = mMissionsDb.orderByChild("status").equalTo("Available");
mMissionsDb.keepSynced(true);
mPendingList.setHasFixedSize(true);
mPendingList.setLayoutManager(new LinearLayoutManager(getContext()));
// Inflate the layout for this fragment
return mMainView;
}
#Override
public void onStart() {
super.onStart();
FirebaseRecyclerAdapter<Mission, PendingFragment_User.MissionsViewHolder> firebaseMissionsUserRecyclerAdapter = new FirebaseRecyclerAdapter<Mission, PendingFragment_User.MissionsViewHolder>(
Mission.class,
R.layout.missions_single_layout,
PendingFragment_User.MissionsViewHolder.class,
queries
) {
#Override
protected void populateViewHolder(PendingFragment_User.MissionsViewHolder missionViewHolder, final Mission missionModel, int missionPosition) {
// Log.d(TAG, "inside populateViewHolder" + missionModel.getType() + " , " + missionModel.getDescription());
missionViewHolder.setMissionName(missionModel.getType());
missionViewHolder.setMissionDescription(missionModel.getDescription());
missionViewHolder.setMissionStatus(missionModel.getStatus());
missionViewHolder.button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Toast.makeText(view.getContext(), "esto es un boton"+ view.getNextFocusUpId(), Toast.LENGTH_SHORT).show();
Log.d(TAG,"The button was pressed");
}
});
}
};
mPendingList.setAdapter(firebaseMissionsUserRecyclerAdapter);
}
public static class MissionsViewHolder extends RecyclerView.ViewHolder {
View mView;
Button button ;
public MissionsViewHolder(View itemView) {
super(itemView);
mView = itemView;
button = (Button)mView.findViewById(R.id.pending_single_button);
}
public void setMissionName(String name){
TextView mMissionNameView = mView.findViewById(R.id.mission_single_name);
mMissionNameView.setText(name);
}
public void setMissionStatus(String status){
TextView mMissionStatusView = mView.findViewById(R.id.mission_single_status);
mMissionStatusView.setText(status);
if (status.equals("Available")){
mMissionStatusView.setTextColor(Color.parseColor("#008000"));;
} else {
mMissionStatusView.setTextColor(Color.parseColor("#FF0000"));;
}
}
public void setMissionDescription(String description){
TextView mMissionDescriptionView = mView.findViewById(R.id.mission_single_description);
mMissionDescriptionView.setText(description);
}
}
}
Try using a subclass rather than anonymous one. Then, you'll be able to access the getItem(int position) method of the adapter. Something along the lines of:
private class MissionAdapter extends FirebaseRecyclerAdapter<Mission, PendingFragment_User.MissionsViewHolder> {
public MissionAdapter(Query queries){
super(Mission.class, R.layout.missions_single_layout, PendingFragment_User.MissionsViewHolder.class, queries);
}
#Override
protected void populateViewHolder(PendingFragment_User.MissionsViewHolder missionViewHolder, final Mission missionModel, final int missionPosition) {
Log.d(TAG, "inside populateViewHolder" + missionModel.getType() + " , " + missionModel.getDescription());
missionViewHolder.setMissionName(missionModel.getType());
missionViewHolder.setMissionDescription(missionModel.getDescription());
missionViewHolder.setMissionStatus(missionModel.getStatus());
missionViewHolder.button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Mission clickedMission = MissionAdapter.this.getItem(missionPosition);
if (clickedMission != null){ // for the sake of being extra-safe
Log.d(TAG,"The button was pressed for mission: " + clickedMission.getType());
}
}
});
}
}
I made it print a log, but you should be able to do anything you want with the retrieved Mission object in there.
First of all, I hope my question is clear. If it isn't please comment i will try to make it better!.
i have a question related to putting a item in a arraylist. I am using the master/detail flow (a standard project option in android studio) as a bases for my app. I already modified it but below is de code from the original template to simplify my question. For my problem i think there are three activities involved. Main activity, detail activity, mysavedbooks and the fragment activity.
My Problem
In the detail activity there is a fab button. WHat i want to do is to save the current displayed item in a new arraylist called Saveditems in the activity mysavedbooks.
How can i read the item (which is currently displayed by the detailactivity which extends the fragment) and put this in a saveditems arraylist.
Greetings,
Matthijs
below is the main activity
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import matthijs.bookshelf.dummy.DummyContent;
import java.util.List;
/**
* An activity representing a list of books. This activity
* has different presentations for handset and tablet-size devices. On
* handsets, the activity presents a list of items, which when touched,
* lead to a {#link bookDetailActivity} representing
* item details. On tablets, the activity presents the list of items and
* item details side-by-side using two vertical panes.
*/
public class bookListActivity extends AppCompatActivity {
/**
* Whether or not the activity is in two-pane mode, i.e. running on a tablet
* device.
*/
private boolean mTwoPane;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_book_list);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
toolbar.setTitle(getTitle());
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
View recyclerView = findViewById(R.id.book_list);
assert recyclerView != null;
setupRecyclerView((RecyclerView) recyclerView);
if (findViewById(R.id.book_detail_container) != null) {
// The detail container view will be present only in the
// large-screen layouts (res/values-w900dp).
// If this view is present, then the
// activity should be in two-pane mode.
mTwoPane = true;
}
}
private void setupRecyclerView(#NonNull RecyclerView recyclerView) {
recyclerView.setAdapter(new SimpleItemRecyclerViewAdapter(DummyContent.ITEMS));
}
public class SimpleItemRecyclerViewAdapter
extends RecyclerView.Adapter<SimpleItemRecyclerViewAdapter.ViewHolder> {
private final List<DummyContent.DummyItem> mValues;
public SimpleItemRecyclerViewAdapter(List<DummyContent.DummyItem> items) {
mValues = items;
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.book_list_content, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(final ViewHolder holder, int position) {
holder.mItem = mValues.get(position);
holder.mIdView.setText(mValues.get(position).id);
holder.mContentView.setText(mValues.get(position).content);
holder.mView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mTwoPane) {
Bundle arguments = new Bundle();
arguments.putString(bookDetailFragment.ARG_ITEM_ID, holder.mItem.id);
bookDetailFragment fragment = new bookDetailFragment();
fragment.setArguments(arguments);
getSupportFragmentManager().beginTransaction()
.replace(R.id.book_detail_container, fragment)
.commit();
} else {
Context context = v.getContext();
Intent intent = new Intent(context, bookDetailActivity.class);
intent.putExtra(bookDetailFragment.ARG_ITEM_ID, holder.mItem.id);
context.startActivity(intent);
}
}
});
}
#Override
public int getItemCount() {
return mValues.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public final View mView;
public final TextView mIdView;
public final TextView mContentView;
public DummyContent.DummyItem mItem;
public ViewHolder(View view) {
super(view);
mView = view;
mIdView = (TextView) view.findViewById(R.id.id);
mContentView = (TextView) view.findViewById(R.id.content);
}
#Override
public String toString() {
return super.toString() + " '" + mContentView.getText() + "'";
}
}
}
}
below is the detail activity.
import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.NavUtils;
import android.view.MenuItem;
/**
* An activity representing a single book detail screen. This
* activity is only used narrow width devices. On tablet-size devices,
* item details are presented side-by-side with a list of items
* in a {#link bookListActivity}.
*/
public class bookDetailActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_book_detail);
Toolbar toolbar = (Toolbar) findViewById(R.id.detail_toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "saved book", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
// Show the Up button in the action bar.
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(true);
}
// savedInstanceState is non-null when there is fragment state
// saved from previous configurations of this activity
// (e.g. when rotating the screen from portrait to landscape).
// In this case, the fragment will automatically be re-added
// to its container so we don't need to manually add it.
// For more information, see the Fragments API guide at:
//
// http://developer.android.com/guide/components/fragments.html
//
if (savedInstanceState == null) {
// Create the detail fragment and add it to the activity
// using a fragment transaction.
Bundle arguments = new Bundle();
arguments.putString(bookDetailFragment.ARG_ITEM_ID,
getIntent().getStringExtra(bookDetailFragment.ARG_ITEM_ID));
bookDetailFragment fragment = new bookDetailFragment();
fragment.setArguments(arguments);
getSupportFragmentManager().beginTransaction()
.add(R.id.book_detail_container, fragment)
.commit();
}
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == android.R.id.home) {
// This ID represents the Home or Up button. In the case of this
// activity, the Up button is shown. Use NavUtils to allow users
// to navigate up one level in the application structure. For
// more details, see the Navigation pattern on Android Design:
//
// http://developer.android.com/design/patterns/navigation.html#up-vs-back
//
NavUtils.navigateUpTo(this, new Intent(this, bookListActivity.class));
return true;
}
return super.onOptionsItemSelected(item);
}
}
below is the fragment
package matthijs.bookshelf;
import android.app.Activity;
import android.support.design.widget.CollapsingToolbarLayout;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import matthijs.bookshelf.dummy.DummyContent;
/**
* A fragment representing a single book detail screen.
* This fragment is either contained in a {#link bookListActivity}
* in two-pane mode (on tablets) or a {#link bookDetailActivity}
* on handsets.
*/
public class bookDetailFragment extends Fragment {
/**
* The fragment argument representing the item ID that this fragment
* represents.
*/
public static final String ARG_ITEM_ID = "item_id";
/**
* The dummy content this fragment is presenting.
*/
private DummyContent.DummyItem mItem;
/**
* Mandatory empty constructor for the fragment manager to instantiate the
* fragment (e.g. upon screen orientation changes).
*/
public bookDetailFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments().containsKey(ARG_ITEM_ID)) {
// Load the dummy content specified by the fragment
// arguments. In a real-world scenario, use a Loader
// to load content from a content provider.
mItem = DummyContent.ITEM_MAP.get(getArguments().getString(ARG_ITEM_ID));
Activity activity = this.getActivity();
CollapsingToolbarLayout appBarLayout = (CollapsingToolbarLayout) activity.findViewById(R.id.toolbar_layout);
if (appBarLayout != null) {
appBarLayout.setTitle(mItem.content);
}
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.book_detail, container, false);
// Show the dummy content as text in a TextView.
if (mItem != null) {
((TextView) rootView.findViewById(R.id.book_detail)).setText(mItem.details);
}
return rootView;
}
}
Mysavedbooks activity
package matthijs.tuinierv2;
import java.util.ArrayList;
import java.util.List;
/**
* Created by Matthijs on 12-2-2016.
*/
public class Mysavedbooks {
public static final List<DummyContent.DummyItem> SavedItems= new ArrayList<DummyContent.DummyItem>();
}
I kind of solved to problem for now, except for the twopane mode. I need to look in the solution for the twopane mode further. I think it can be done in a better way but here is the solution.
Please comment if you have a better solution.
I added the String in ItemDetailActivity
public static String SAVED_ITEM_ID;
In the bookListActivity i added a line of code in this part:
` #Override
public void onBindViewHolder(final ViewHolder holder, int position) {
holder.mItem = mValues.get(position);
holder.mIdView.setText(mValues.get(position).id);
holder.mContentView.setText(mValues.get(position).content);
holder.mView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mTwoPane) {
Bundle arguments = new Bundle();
arguments.putString(bookDetailFragment.ARG_ITEM_ID, holder.mItem.id);
bookDetailFragment fragment = new bookDetailFragment();
fragment.setArguments(arguments);
getSupportFragmentManager().beginTransaction()
.replace(R.id.book_detail_container, fragment)
.commit();
} else {
Context context = v.getContext();
Intent intent = new Intent(context, bookDetailActivity.class);
intent.putExtra(bookDetailFragment.ARG_ITEM_ID, holder.mItem.id);
//THE line of code I ADDED
itemDetailActivity.SAVED_ITEM_ID = holder.mItem.id;
context.startActivity(intent);
}
}
});
}`
Here is the code i added in the bookDetailActivity to retrieve the current book which is displayed in the itemdetailactivity en thereby the fragment.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_item_detail);
Toolbar toolbar = (Toolbar) findViewById(R.id.detail_toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton)findViewById(R.id.fabdetail);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//code i added to retrieve the current item and save it in
int SAVED_ITEM_ID_INT = Integer.parseInt(SAVED_ITEM_ID);
ItemListActivity.PlantItem SAVED_ITEM = ItemListActivity.ITEMS.get(SAVED_ITEM_ID_INT);
Mysavedbooks.SavedItems.add(SAVED_ITEM);
Snackbar.make(view,"Book saved to My books", Snackbar.LENGTH_LONG).setAction("Action", null).show();
}
});