We Keep Coding

How to add firebase to a fragment in android studio

I am making an android ecommerce app and I downloaded an app template but in that template there is no firebase in the fragment and I want when the user clicks checkout button the products he selected should go to the firebase database but all videos I see they use activities .So please help me.
CartFragment.java
package com.example.shoppingcart.views;
import android.content.Intent;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProvider;
import androidx.navigation.NavController;
import androidx.navigation.Navigation;
import androidx.recyclerview.widget.DividerItemDecoration;
import androidx.recyclerview.widget.RecyclerView;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.Toolbar;
import com.example.shoppingcart.R;
import com.example.shoppingcart.adapters.CartListAdapter;
import com.example.shoppingcart.cartholder;
import com.example.shoppingcart.databinding.FragmentCartBinding;
import com.example.shoppingcart.dataholder;
import com.example.shoppingcart.models.CartItem;
import com.example.shoppingcart.productholder;
import com.example.shoppingcart.viewmodels.ShopViewModel;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.firestore.FirebaseFirestore;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.HashMap;
import java.util.List;
import java.util.UUID;
public class CartFragment extends Fragment implements CartListAdapter.CartInterface {
private static final String TAG = "CartFragment";
private ImageView productImage;
private TextView productname;
private TextView productprice;
private TextView productcategory;
private Spinner productquantity;
UUID uuid = UUID.randomUUID();
String randomUUID = uuid.toString().trim();
ShopViewModel shopViewModel;
FragmentCartBinding fragmentCartBinding;
NavController navController;
Button button;
private void finishActivity() {
if (getActivity() != null) {
getActivity().finish();
}
}
public CartFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
fragmentCartBinding = FragmentCartBinding.inflate(inflater, container, false);
return fragmentCartBinding.getRoot();
}
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
navController = Navigation.findNavController(view);
final CartListAdapter cartListAdapter = new CartListAdapter(this);
fragmentCartBinding.cartRecyclerView.setAdapter(cartListAdapter);
fragmentCartBinding.cartRecyclerView.addItemDecoration(new DividerItemDecoration(requireContext(), DividerItemDecoration.VERTICAL));
shopViewModel = new ViewModelProvider(requireActivity()).get(ShopViewModel.class);
shopViewModel.getCart().observe(getViewLifecycleOwner(), new Observer<List<CartItem>>() {
#Override
public void onChanged(List<CartItem> cartItems) {
cartListAdapter.submitList(cartItems);
fragmentCartBinding.placeOrderButton.setEnabled(cartItems.size() > 0);
}
});
shopViewModel.getTotalPrice().observe(getViewLifecycleOwner(), new Observer<Double>() {
#Override
public void onChanged(Double aDouble) {
fragmentCartBinding.orderTotalTextView.setText("Total: PKR " + aDouble.toString());
}
});
button = (Button) getView().findViewById(R.id.placeOrderButton);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(CartFragment.this.getActivity(), CheckoutActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
finishActivity();
}
});
}
#Override
public void deleteItem(CartItem cartItem) {
shopViewModel.removeItemFromCart(cartItem);
}
#Override
public void changeQuantity(CartItem cartItem, int quantity) {
shopViewModel.changeQuantity(cartItem, quantity);
}
}
fragment_cart.xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="vertical"
tools:context=".views.CartFragment"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/cartRecyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
tools:listitem="#layout/cart_row"
tools:itemCount="2"
/>
<Space
android:layout_width="match_parent"
android:layout_height="16dp" />
<TextView
android:id="#+id/orderTotalTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end"
android:layout_margin="8dp"
android:text="Total: PKR 26"
android:textAppearance="#style/TextAppearance.MaterialComponents.Headline6" />
<Button
android:id="#+id/placeOrderButton"
style="#style/Widget.MaterialComponents.Button.UnelevatedButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end"
android:layout_margin="8dp"
android:text="Proceed To Checkout"
android:textAppearance="#style/TextAppearance.MaterialComponents.Caption" />
</LinearLayout>
</ScrollView>

What kind of firebase database you have to use because both of the methods are similar...
activity and fragment method is same not any kind of change to the method ...
i will show you firestore method because i don't know which one you have to use
in fragment first initilize
FirebaseFirestore firebaseFirestore;
oncreateview initialize
firebaseFirestore = FirebaseFirestore.getInstance();
after you can perform all your crud operation and all thing but first two line is require
simple use bro...

how to display recyclerview in a fragment after fetching an api on the click of a button

I am trying to display some recipe data after you search the recipe in the search bar and click the search button inside the search fragment. I am using recycler view inside the search fragment to display the data below the search bar and the button.
Here is the code for the fragment_search.xml file
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Fragments.SearchFragment">
<!-- TODO: Update blank fragment layout -->
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:layout_width="300dp"
android:layout_height="300dp"
android:layout_centerHorizontal="true"
android:layout_marginLeft="100dp"
android:layout_marginTop="-230dp"
android:src="#drawable/home_oval" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="FOODIES"
android:textSize="40dp"
android:layout_centerHorizontal="true"/>
</RelativeLayout>
<SearchView
android:layout_width="300dp"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="100dp"
android:queryHint="Find your today's recipe"
android:iconifiedByDefault="false"
android:background="#drawable/searchoval"
android:id="#+id/searchbar"
/>
<Button
android:layout_width="100dp"
android:layout_height="wrap_content"
android:text="search"
android:background="#drawable/rounded_btn"
android:layout_below="#+id/searchbar"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp"
android:id="#+id/button1"/>
<ImageView
android:layout_width="300dp"
android:layout_height="300dp"
android:layout_centerHorizontal="true"
android:src="#drawable/ic_man_searching_location_using_gps_2127154_0"
android:layout_below="#+id/button1"
android:id="#+id/searching_logo"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/searching_text"
android:text="Search for yummy delicacies today"
android:layout_centerHorizontal="true"
android:textAlignment="center"
android:fontFamily="#font/quicksand"
android:layout_below="#+id/searching_logo"
android:textSize="25dp"
android:textColor="#color/black"/>
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/button1"
android:id="#+id/recycler_view"
>
</androidx.recyclerview.widget.RecyclerView>
</RelativeLayout>
</FrameLayout>
Here is my SearchFragment.java file.
package com.example.recipeappandroid.Fragments;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;
import com.android.volley.toolbox.Volley;
import com.example.recipeappandroid.Adapter.RecipeAdapter;
import com.example.recipeappandroid.Model.Recipe;
import com.example.recipeappandroid.R;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
public class SearchFragment extends Fragment {
Button click;
//public static TextView fetchedText;
ImageView searching_logo;
TextView searching_text;
SearchView searchbar;
String query="";
RecyclerView recyclerView;
public static ArrayList<Recipe> recipeList;
public static RecipeAdapter recipeAdapter;
private RequestQueue mRequestQueue;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_search, container, false);
click = (Button) view.findViewById(R.id.button1);
//fetchedText = (TextView) view.findViewById(R.id.fetcheddata);
searchbar = (SearchView) view.findViewById(R.id.searchbar);
searching_logo = view.findViewById(R.id.searching_logo);
searching_text = view.findViewById(R.id.searching_text);
recyclerView = view.findViewById(R.id.recycler_view);
recyclerView.setHasFixedSize(true);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
linearLayoutManager.setReverseLayout(true);
linearLayoutManager.setStackFromEnd(true);
recyclerView.setLayoutManager(linearLayoutManager);
//recipeAdapter = new RecipeAdapter();
recyclerView.setAdapter(recipeAdapter);
recipeList = new ArrayList<>();
//getData();
click.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
query = searchbar.getQuery().toString();
String url = "http://localhost:5000/" + query;
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(url, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
try {
for (int i = 0; i < response.length(); i++) {
JSONObject jsonObject = response.getJSONObject(i);
JSONObject recipes = jsonObject.getJSONObject("recipe");
//Recipe recipe = new Recipe();
String recipe_img = recipes.getString("image");
String recipe_title = recipes.getString("label");
String recipe_data = recipes.getString("source");
recipeList.add(new Recipe(recipe_img,recipe_title,recipe_data));
}
recipeAdapter = new RecipeAdapter(getContext(), recipeList);
//recyclerView.setAdapter(recipeAdapter);
recipeAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
//Toast.makeText(SearchFragment.this,"Error Occured",Toast.LENGTH_SHORT).show();
error.printStackTrace();
}
});
mRequestQueue = Volley.newRequestQueue(getContext());
mRequestQueue.add(jsonArrayRequest);
/* Log.d("QUEEEERRRYYYY",query);
ApiCall process = new ApiCall(searching_logo,searching_text);
process.execute(query);*/
}
});
return view;
}
}
I am fething the api and setting the arraylists and adapter inside the onClick listener
but I keep getting the "E/RecyclerView: No adapter attached; skipping layout" Error in the logcat.
Here is the code for the adapter.
package com.example.recipeappandroid.Adapter;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.example.recipeappandroid.Model.Recipe;
import com.example.recipeappandroid.R;
import com.example.recipeappandroid.Viewholder.recipeViewHolder;
import com.squareup.picasso.Picasso;
import java.util.ArrayList;
public class RecipeAdapter extends RecyclerView.Adapter<recipeViewHolder>{
private Context mContext;
private ArrayList<Recipe> mRecipe;
public RecipeAdapter(Context context,ArrayList<Recipe> recipe) {
mContext = context;
mRecipe = recipe;
}
public void setData(ArrayList<Recipe> mRecipe) {
this.mRecipe = mRecipe;
}
#NonNull
#Override
public recipeViewHolder onCreateViewHolder(#NonNull ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(mContext).inflate(R.layout.recycler_row, viewGroup, false);
return new recipeViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull recipeViewHolder viewHolder, int i) {
Recipe recipe = mRecipe.get(i);
Picasso.get().load(recipe.getImg()).into(viewHolder.image);
viewHolder.recipe_title.setText(recipe.getTitle());
viewHolder.recipe_data.setText(recipe.getData());
}
#Override
public int getItemCount() {
return mRecipe.size();
}
}

Here is my solution
//recipeAdapter = new RecipeAdapter();
recyclerView.setAdapter(recipeAdapter);
recipeList = new ArrayList<>();
//change code:
recipeList = new ArrayList<>();
recipeAdapter = new RecipeAdapter(getContext(), recipeList);
recyclerView.setAdapter(recipeAdapter);
//after get data in API:
//recipeAdapter = new RecipeAdapter(getContext(), recipeList);
//recyclerView.setAdapter(recipeAdapter);
recipeAdapter.notifyDataSetChanged();

How to get value of a row in listview in android

I am new in android
The structure of my application consist of:
activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.example.reyhane.myapplication.MainActivity">
<ListView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.design.widget.CoordinatorLayout>
cell.xml
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layoutDirection="rtl">
<TableRow
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="#+id/nationalCode"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_column="2"
android:layout_marginLeft="8dp"
android:textStyle="bold" />
<TextView
android:id="#+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_column="2"
android:layout_marginLeft="8dp"
android:textStyle="bold" />
<TextView
android:id="#+id/lastName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_column="2"
android:layout_marginLeft="8dp"
android:textStyle="bold" />
<Button
android:id="#+id/delete_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_column="2"
android:text="حذف" />
</TableRow>
</TableLayout>
MainActivity.java
package com.example.reyhane.myapplication;
import android.app.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.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Gravity;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.AdapterView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.PopupWindow;
import android.widget.TextView;
import java.util.ArrayList;
public class MainActivity extends Activity {
public ListView list;
public ArrayList<Person> countries = new ArrayList<Person>();
public ListAdapter adapter;
public void fillPerson(String nationalCode) {
Person person = new Person();
person.setNationalCode(nationalCode);
person.setName("reza");
person.setLastName("hghgh");
person.setPhone("231345");
countries.add(person);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
fillPerson("6768767");
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
list = (ListView) findViewById(R.id.list);
adapter = new ListAdapter(this);
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> adapter, View v, int position, long id) {
Object o = list.getItemAtPosition(position);
Person person = (Person) o;
openAddPersonActivity(person.getNationalCode());
}
});
}
public void openAddPersonActivity(String nationalCode) {
Intent i = new Intent(MainActivity.this, AddPerson.class);
if (nationalCode != null)
i.putExtra("nationalCode", nationalCode);
startActivity(i);
}
}
ListAdapter.java
package com.example.reyhane.myapplication;
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TableLayout;
import android.widget.TextView;
/**
* Created by reyhane on 11/24/16.
*/
public class ListAdapter extends BaseAdapter {
MainActivity mainActivity;
ListAdapter(MainActivity mainActivity) {
this.mainActivity = mainActivity;
}
#Override
public int getCount() {
return mainActivity.countries.size();
}
#Override
public Object getItem(int i) {
return null;
}
#Override
public long getItemId(int i) {
return 0;
}
static class ViewHolderItem {
TextView nationalCode;
TextView name;
TextView lastName;
TextView phone;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolderItem holder = new ViewHolderItem();
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) mainActivity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.cell, null);
holder.nationalCode = (TextView) convertView.findViewById(R.id.nationalCode);
holder.name = (TextView) convertView.findViewById(R.id.name);
holder.lastName = (TextView) convertView.findViewById(R.id.lastName);
convertView.setTag(holder);
} else {
holder = (ViewHolderItem) convertView.getTag();
}
Button deleteBtn = (Button) convertView.findViewById(R.id.delete_btn);
holder.nationalCode.setText(this.mainActivity.countries.get(position).getNationalCode());
holder.name.setText(this.mainActivity.countries.get(position).getName());
holder.lastName.setText(this.mainActivity.countries.get(position).getLastName());
deleteBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//do something
mainActivity.countries.remove(position); //or some other task
notifyDataSetChanged();
}
});
return convertView;
}
}
My problem:
As you see in my application, i have list of person in listview.
In this form i add person and delete and edit it.
I can remove each record of listview but i can not get nationalCode value of person of each reacord in listview to fetch person from database by this nationalcode and edit it.
How do i do?
please help me

listView.setOnItemClickListener(new AdapterView.OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> arg0, View v, int arg2, long arg3)
{
String nationalcode = (String) ((TextView) v.findViewById(R.id.nationalcode)).getText();
Toast.makeText(getApplicationContext(), "NATIONAL CODE "+nationalcode, Toast.LENGTH_SHORT).show();
openAddPersonActivity(nationalcode);
}
});
Hope it helps.

try this :
openAddPersonActivity(countries.get(position).getNationalCode());
FYI, the list.setOnItemClick doesn't work
add this into your ListAdapter:
holder.nationalCode.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(mainActivity,"Country Code = "+MainActivity.countries.get(position).getNationalCode(),Toast.LENGTH_SHORT).show();
Intent i = new Intent(mainActivity, AddPerson.class);
if (nationalCode != null)
i.putExtra("nationalCode", nationalCode);
startActivity(i);
}
});
and if you click country code in listview item then it will detected;

You have not set countries list to your Listview adaptor.
When you are setting the adaptor, pass the countries list to listview adaptor.

It work successfully:
holder.nationalCode.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String nationalcode = (String) ((TextView) view.findViewById(R.id.nationalCode)).getText();
Toast.makeText(mainActivity, "NATIONAL CODE " + nationalcode, Toast.LENGTH_SHORT).show();
}
});

Try This
public void onItemClick(AdapterView<?> adapter, View v, int position, long id) {
Person person = countries.get(position);
openAddPersonActivity(person.getNationalCode());
}

Buttons not visible in gridview

I am new to android programming, and I am trying to get a button into an vertical scrolling grid. The buttons are not functional or visible. When I enable "Show layout bounds" in developer options, You see the gridview allocates space for the buttons::
My code is as follows:
layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="1">
<GridView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/gridView1"
android:scrollbars="vertical"
android:numColumns="4"
/>
</LinearLayout>
Fragment:
import android.app.ActionBar;
import android.graphics.Color;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.GridLayout;
import android.widget.GridView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.fairphone.datatransparency.R;
import java.util.Iterator;
/**
* Created by koen on 11/25/15.
*/
public class NewTimeLineFragment extends Fragment{
public static final String ARG_OBJECT = "object";
#Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
// The last two arguments ensure LayoutParams are inflated
// properly.
View rootView = inflater.inflate(
R.layout.new_time_line_layout, container, false);
Bundle args = getArguments();
ActionBar.LayoutParams lp = new ActionBar.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT);
Button[] buttons = new Button[6];
View.OnClickListener oclBtn = new View.OnClickListener()
{
#Override
public void onClick(View v) {
Toast.makeText(getActivity(), "GORGABAL", 5).show();
}
};
for(int i = 0; i < buttons.length; i++){
buttons[i] = new Button(getActivity());
buttons[i].setBackgroundColor(Color.BLACK);
buttons[i].setVisibility(View.VISIBLE);
buttons[i].setOnClickListener(oclBtn);
buttons[i].setLayoutParams(lp);
buttons[i].setText("GORGABAL");
}
GridView gridview;
gridview = (GridView) rootView.findViewById(R.id.gridView1);
ArrayAdapter<Button> adapter = new ArrayAdapter<Button>(this.getActivity(), android.R.layout.simple_list_item_1, buttons);
gridview.setAdapter(adapter);
gridview.setVisibility(View.VISIBLE);
Log.d("Debug", "new_time_line fragment created");
return rootView;
}
}

ListView with Custom extended BaseAdapter not showing with SherlockFragment, need hints or suggestions

I am new to android programming and I seem to have come at a stand still for several days now. I am having trouble finding a solution to my problem and tried many different solutions without success. As the title suggests, my code runs successfully but the ListView does not show up on the selected Tabs. Any suggestions of tips would be helpful.
ItemGuide.Java ------------------------------------
package com.example.alzuni_project;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.SherlockFragmentActivity;
public class ItemGuide extends SherlockFragmentActivity {
private ViewPager mViewPager;
private TabsAdapter mTabsAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mViewPager = new ViewPager(this);
mViewPager.setId(R.id.pager);
setContentView(mViewPager);
final ActionBar bar = getSupportActionBar();
bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
bar.setDisplayShowTitleEnabled(false);
bar.setDisplayShowHomeEnabled(false);
mTabsAdapter = new TabsAdapter(this, mViewPager);
mTabsAdapter.addTab(bar.newTab().setIcon(R.drawable.leathertab_image), LeatherTab.class, null);
mTabsAdapter.addTab(bar.newTab().setIcon(R.drawable.leathertab_image), SilverTab.class, null);
}
}
LeatherTab.java --------------------------------------------------------------
package com.example.alzuni_project;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.TextView;
import com.actionbarsherlock.app.SherlockFragment;
public class LeatherTab extends SherlockFragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.leather_fragment, container, false); //Fragment Layout inflated
TextView text = (TextView) view.findViewById(R.id.boxtest);//TextView for layout testing
text.setText("Hello");
ListView leather_listview = (ListView) view.findViewById(R.id.leather_list); // List is initialized
leather_listview.setAdapter(new LeatherAdapter(getActivity())); //Custom list adapter passes Context
return view;
}
}
LeatherAdapter.java ------------------------------------------------------
package com.example.alzuni_project;
import java.util.ArrayList;
import android.content.Context;
import android.content.res.Resources;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
class LeatherAdapter extends BaseAdapter {
ArrayList<SingleRow> list;
Context context;
public LeatherAdapter(Context c) {
context = c;
list = new ArrayList<SingleRow>();
Resources res = c.getResources();
String[] titles = res.getStringArray(R.array.leather_list_titles);
String[] descriptions = res.getStringArray(R.array.leather_list_description);
int[] images = {R.drawable.belt, R.drawable.wallet, R.drawable.coincase};
for (int i=0;i<images.length;i++) //Was originally 3
{
new SingleRow(titles[i], descriptions[i], images[i]);
}
}
#Override
public int getCount() {
return list.size();
}
#Override
public Object getItem(int i) {
return list.get(i);
}
#Override
public long getItemId(int i) {
return i;
}
#Override
public View getView(int position, View convertView, ViewGroup viewGroup) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflater.inflate(R.layout.single_row, viewGroup, false);
TextView title = (TextView) row.findViewById(R.id.leather_title);
TextView description = (TextView) row.findViewById(R.id.leather_description);
ImageView image = (ImageView) row.findViewById(R.id.leather_icon);
SingleRow temp = list.get(position);
title.setText(temp.title);
description.setText(temp.description);
image.setImageResource(temp.image);
return row;//returns the rootView of single_row.xml
}
}
leatherfragment.xml ------------------------------------------------------
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/boxtest"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#CCDDFF" />
<ListView
android:id="#+id/leather_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/boxtest" />
</RelativeLayout>
SingleRow.java -----------------------------------------------------
package com.example.alzuni_project;
class SingleRow {
String title;
String description;
int image;
SingleRow(String title, String description, int image) {
this.title=title;
this.description=description;
this.image=image;
}
}
single_row.xml ---------------------------------------------------
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ImageView
android:id="#+id/leather_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="48dp"
android:layout_marginTop="48dp"
android:contentDescription="#string/todo" />
<TextView
android:id="#+id/leather_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/leather_icon"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="#CCCCCC" />
<TextView
android:id="#+id/leather_description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/leather_icon"
android:layout_alignLeft="#+id/leather_icon"
android:layout_alignParentRight="true"
android:layout_below="#+id/leather_title"
android:background="#CCDDFF" />

Your list seems empty , try this in your LeatherAdapter:
list.add(new SingleRow(titles[i],descriptions[i], images[i]));
Inside the for loop .