use Edit text to search in recyclerview inside fragment

use Edit text to search in recyclerview inside fragment - android

hello please I need help
I want to add an Edittext to use it for search for recycleview
my program will be run without crashing but it not work
in my project I have a BottomNavigation (fragment) and inside it I used Tablayout (fragment) (a fragment inside another fragment (Tab inside bottom navigation))
I have no error but my search is not working
**If It is possible for you , please add this code inside your new blank project and test it and help me **
I used this search totorial by this learning project
https://codinginflow.com/tutorials/android/searchview-recyclerview
My Main Activity code is(Fragment of BottomNavigation is inside MainActicity)
package forokans.sirwansoft.forlearn;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomNavigationView;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;
import android.widget.FrameLayout;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
FrameLayout frameLayout;
//call Fragments class
private BottomNavigationFragment fragmentOne;
/* private FragmentTwo fragmentTwo;
private FragmentThree fragmentThree;*/
private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
= new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.navigation_home:
setFragment(fragmentOne);
return true;
case R.id.navigation_dashboard:
/*
setFragment(fragmentTwo);
*/
return true;
case R.id.navigation_notifications:
/*
setFragment(fragmentThree);
*/
return true;
}
return false;
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getSupportActionBar().hide();
BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);
navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
//make new from fragments
//fragment of BottomNavigation
fragmentOne = new BottomNavigationFragment();
/* fragmentThree = new FragmentThree();
fragmentTwo = new FragmentTwo();
*/
setFragment(fragmentOne);
frameLayout = findViewById(R.id.main_fream);
}
private void setFragment(Fragment fragment) {
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_fream, fragment);
fragmentTransaction.commit();
}
}
My Layout Of main_activity.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/main_fream"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="0dp"
android:layout_marginEnd="0dp"
android:background="?android:attr/windowBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="#menu/navigation" />
</android.support.constraint.ConstraintLayout>
My Bottom Navigation Fragment class
package forokans.sirwansoft.forlearn;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
/**
* A simple {#link Fragment} subclass.
*/
public class BottomNavigationFragment extends Fragment {
TabLayout tabLayout;
EditText search;
ViewPager viewPager;
public BottomNavigationFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view= inflater.inflate(R.layout.fragment_bottom_navigation, container, false);
search=view.findViewById(R.id.searchinfragmentOne);
tabLayout=view.findViewById(R.id.tablayout_id);
viewPager=view.findViewById(R.id.viewpager);
ViewPagerAdapterForTabs adapter = new ViewPagerAdapterForTabs(getChildFragmentManager());
// this is Tab Fragments
adapter.AddFragment(new TabFragment(),"Tab1");
viewPager.setAdapter(adapter);
tabLayout.setupWithViewPager(viewPager);
return view;
}
}
**and My Layout Of this Buttom Navigation **
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
tools:context=".BottomNavigationFragment">
<EditText
android:id="#+id/searchinfragmentOne"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:hint="search ..." />
<android.support.design.widget.TabLayout
android:id="#+id/tablayout_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorAccent"
app:tabGravity="fill"
app:tabIndicatorColor="#color/colorPrimary"
app:tabMode="scrollable"
app:tabTextColor="#color/colorPrimaryDark" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"></android.support.v4.view.ViewPager>
</LinearLayout>
Tab Fragment
package forokans.sirwansoft.forlearn;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import java.util.ArrayList;
import java.util.List;
/**
* A simple {#link Fragment} subclass.
*/
public class TabFragment extends Fragment {
public List<Items> lstItems;
public RecyclerViewAdapter mAdapter;
EditText search;
public TabFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_tab, container, false);
lstItems = new ArrayList<>();
lstItems.add(new Items("a", "11265", "27500", "horizental", R.drawable.gemtv));
lstItems.add(new Items("b", "11265", "27500", "horizental", R.drawable.bbc));
lstItems.add(new Items("c", "11265", "27500", "horizental", R.drawable.voa));
lstItems.add(new Items("d", "11265", "27500", "horizental", R.drawable.manoto));
search = view.findViewById(R.id.searchintabbadrkurdi);
search.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
filter(s.toString());
}
});
RecyclerView myrv = view.findViewById(R.id.recyclerview_id_badr_kurdi);
RecyclerViewAdapter mAdapter = new RecyclerViewAdapter(getContext(), lstItems);
myrv.setLayoutManager(new GridLayoutManager(getContext(), 3));
myrv.setAdapter(mAdapter);
/*mRecyclerView = findViewById(R.id.recyclerView);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new LinearLayoutManager(this);
mAdapter = new RecyclerViewAdapter(mExampleList);
mRecyclerView.setLayoutManager(mLayoutManager);
mRecyclerView.setAdapter(mAdapter);*/
return view;
}
private void filter(String text) {
ArrayList<Items> filteredList = new ArrayList<>();
for (Items item : lstItems) {
if (item.getTvName().toLowerCase().contains(text.toLowerCase())) {
filteredList.add(item);
}
}
mAdapter.filterList(filteredList);
}
}
Tab Layout . xml
<?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=".TabFragment">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<EditText
android:id="#+id/searchintabbadrkurdi"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerview_id_badr_kurdi"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
</FrameLayout>
My Item Class
package forokans.sirwansoft.forlearn;
public class Items {
private String TvName;
private String Forekans;
private String BistoHaft;
private String Horizental;
private int ImageSrc;
//main constructor
public Items() {
}
// constructor
public Items(String tvName, String forekans, String bistoHaft, String horizental, int imageSrc) {
TvName = tvName;
Forekans = forekans;
BistoHaft = bistoHaft;
Horizental = horizental;
ImageSrc = imageSrc;
}
//getter
public String getTvName() {
return TvName;
}
//getter
public String getForekans() {
return Forekans;
}
public String getBistoHaft() {
return BistoHaft;
}
//getter
public int getImageSrc() {
return ImageSrc;
}
public String getHorizental() {
return Horizental;
}
}
My Recycler View Adapter Class
package forokans.sirwansoft.forlearn;
import android.content.Context;
import android.support.v7.widget.CardView;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.MyViewHolder> {
private Context mContext;
private List<Items> lstItems;
public RecyclerViewAdapter(Context mContext, List<Items> lstItems) {
this.mContext = mContext;
this.lstItems = lstItems;
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view;
LayoutInflater mInflater = LayoutInflater.from(mContext);
view = mInflater.inflate(R.layout.recycler_view_item, parent, false);
return new MyViewHolder(view);
}
#Override
public void onBindViewHolder(MyViewHolder holder, final int position) {
//in main activity displays
holder.tv_Items_TvName.setText(lstItems.get(position).getTvName());
holder.tv_Items_cat.setText(lstItems.get(position).getForekans());
holder.tv_Items_desc.setText(lstItems.get(position).getBistoHaft());
holder.tv_Items_horizental.setText(lstItems.get(position).getHorizental());
holder.img_Items_ImageSrc.setImageResource(lstItems.get(position).getImageSrc());
holder.cardView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(mContext, "Clicked", Toast.LENGTH_SHORT).show();
}
});
}
#Override
public int getItemCount() {
return lstItems.size();
}
public void filterList(ArrayList<Items> filteredList) {
lstItems = filteredList;
notifyDataSetChanged();
}
public static class MyViewHolder extends RecyclerView.ViewHolder {
TextView tv_Items_TvName;
TextView tv_Items_cat;
TextView tv_Items_desc;
TextView tv_Items_horizental;
ImageView img_Items_ImageSrc;
CardView cardView;
public MyViewHolder(View itemView) {
super(itemView);
tv_Items_TvName = itemView.findViewById(R.id.Items_TvName_id);
tv_Items_cat = itemView.findViewById(R.id.Items_cat_id);
tv_Items_desc = itemView.findViewById(R.id.Items_desc_id);
tv_Items_horizental = itemView.findViewById(R.id.Items_Hor_id);
img_Items_ImageSrc = itemView.findViewById(R.id.Items_img_id);
cardView = itemView.findViewById(R.id.cardview_id);
}
}
}
And My ViewPagerAdapter class For Tabs
package forokans.sirwansoft.forlearn;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import java.util.ArrayList;
import java.util.List;
public class ViewPagerAdapterForTabs extends FragmentPagerAdapter {
private final List<Fragment> FragmentList = new ArrayList<>();
private final List<String> FragmentListTitles = new ArrayList<>();
public ViewPagerAdapterForTabs(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
return FragmentList.get(position);
}
#Override
public int getCount() {
return FragmentListTitles.size();
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
return FragmentListTitles.get(position);
}
public void AddFragment(Fragment fragment, String titles) {
FragmentList.add(fragment);
FragmentListTitles.add(titles);
}
}

i found out
change this
RecyclerView myrv = view.findViewById(R.id.recyclerview_id_badr_kurdi);
RecyclerViewAdapter mAdapter = new RecyclerViewAdapter(getContext(), lstItems);
myrv.setLayoutManager(new GridLayoutManager(getContext(), 3));
myrv.setAdapter(mAdapter);
to this
RecyclerView myrv = view.findViewById(R.id.recyclerview_id_badr_kurdi);
mAdapter = new RecyclerViewAdapter(getContext(), lstItems);
myrv.setLayoutManager(new GridLayoutManager(getContext(), 3));
myrv.setAdapter(mAdapter);
the reason is
before We call onCreate this RecyclerViewAdapter mAdapter = new RecyclerViewAdapter(getContext(), lstItems); was initialized and in last one if we make this class a new abject , it will be a new initializing value

Related

I add SearchView in Toolbar and Using Tab Layout in The Activity and I want SearchView to work in both Fragment that I added as Tab

I am Using a Tab Layout with two fragments both have Recycler View and also added Search View in Tab Layout but here I am facing a problem, I want Search View to work on Both Fragment that I added As Tab but Search View is in another activity(Toolbar) and both fragments are different
Activity Having Tabs(LanguageChooser Activity)
package com.piyushjaiswal.lyricswala;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.SearchView;
import androidx.appcompat.widget.Toolbar;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter;
import androidx.viewpager.widget.ViewPager;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import com.google.android.material.tabs.TabLayout;
public class LanguageChooser extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_language_chooser);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
SectionPagerAdapter pagerAdapter = new SectionPagerAdapter(getSupportFragmentManager(),FragmentPagerAdapter.BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
ViewPager pager = findViewById(R.id.pager);
pager.setAdapter(pagerAdapter);
TabLayout tabLayout = findViewById(R.id.tabs);
tabLayout.setupWithViewPager(pager);
}
private class SectionPagerAdapter extends FragmentPagerAdapter {
public SectionPagerAdapter(#NonNull FragmentManager fm, int behaviour) {
super(fm,behaviour);
}
#NonNull
#Override
public Fragment getItem(int position) {
switch (position){
case 0:
return new Hindi();
case 1:
return new Punjabi();
}
return null;
}
#Override
public int getCount() {
return 2;
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
switch (position)
{
case 0: return getResources().getText(R.string.Hindi);
case 1:return getResources().getText(R.string.Punjabi);
}
return null;
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.toolbar,menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item)
{
switch(item.getItemId())
{
default:
return super.onOptionsItemSelected(item);
}
}
#Override
public void onBackPressed() {
System.exit(1);
}
}
XML CODE OF LanguageChooserActivity
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
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:orientation="vertical"
tools:context=".LanguageChooser">
<androidx.appcompat.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:id="#+id/toolbar"
android:background="#color/colorAccent"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorAccent"
app:elevation="0dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<com.google.android.material.tabs.TabLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tabs"/>
</com.google.android.material.appbar.AppBarLayout>
<androidx.viewpager.widget.ViewPager
android:layout_width="match_parent"
android:id="#+id/pager"
android:layout_height="match_parent" />
</LinearLayout>
My Toolbar having Search View
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/action_Search"
android:title="#string/search"
android:icon="#android:drawable/ic_menu_search"
app:showAsAction="ifRoom|collapseActionView"
app:actionViewClass="android.widget.SearchView"
/>
</menu>
XML code of first Tab(Fragment) named as Hindi
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
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:orientation="vertical"
tools:context=".Hindi">
<ProgressBar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/progressbar"
android:visibility="visible"/>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</LinearLayout>
Java Code of Tab(Fragment) named as Hindi
package com.piyushjaiswal.lyricswala;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.provider.ContactsContract;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.app.SearchManager;
import android.widget.ProgressBar;
import androidx.appcompat.widget.SearchView;
import android.widget.Toast;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import java.util.ArrayList;
import java.util.List;
/**
* A simple {#link Fragment} subclass.
*/
public class Hindi extends Fragment {
View v;
private RecyclerView myRecyclerview;
private List<Contact> listContact = new ArrayList<>();
private FirebaseDatabase database = FirebaseDatabase.getInstance();
private DatabaseReference myRef = database.getReference();
private RecyclerViewAdapter recyclerViewAdapter;
private ProgressBar progressBar;
public Hindi() {
// Required empty public constructor
}
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
v = inflater.inflate(R.layout.fragment_hindi,container,false);
progressBar= v.findViewById(R.id.progressbar);
progressBar.setVisibility(View.VISIBLE);
myRecyclerview = v.findViewById(R.id.recyclerView);
myRecyclerview.setHasFixedSize(true);
myRecyclerview.setItemViewCacheSize(10);
recyclerViewAdapter = new RecyclerViewAdapter(getContext(),listContact);
LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
myRecyclerview.setLayoutManager(layoutManager);
myRecyclerview.setAdapter(recyclerViewAdapter);
return v;
}
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
myRef.child("Hindi").addListenerForSingleValueEvent(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot dataSnapshot) {
for(DataSnapshot dataSnapshot1:dataSnapshot.getChildren()){
listContact.add(dataSnapshot1.getValue(Contact.class));
}
recyclerViewAdapter.notifyDataSetChanged();
progressBar.setVisibility(View.GONE);
}
#Override
public void onCancelled(#NonNull DatabaseError databaseError) {
Toast.makeText(getActivity(),databaseError.getMessage(),Toast.LENGTH_LONG).show();
}
});
}
}
Recycler View Adapter
package com.piyushjaiswal.lyricswala;
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.bumptech.glide.Glide;
import java.util.ArrayList;
import java.util.List;
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.MyViewHolder> {
private Context mContext;
private List<Contact> mData;
private List<Contact> mDataFull;
public RecyclerViewAdapter(Context mContext, List<Contact> mData) {
this.mContext = mContext;
this.mData = mData;
mDataFull = new ArrayList<>(mData);
}
#NonNull
#Override
public MyViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View v;
v = LayoutInflater.from(mContext).inflate(R.layout.item_songs,parent,false);
MyViewHolder vHolder= new MyViewHolder(v);
return vHolder;
}
#Override
public void onBindViewHolder(#NonNull MyViewHolder holder, int position) {
holder.setData(mData.get(position).getName(),mData.get(position).getPhone(),mData.get(position).getUrl(),mData.get(position).getLyrics());
}
#Override
public int getItemCount() {
return mData.size();
}
static class MyViewHolder extends RecyclerView.ViewHolder
{
private TextView tv_name;
private TextView tv_phone;
private ImageView imageView;
MyViewHolder(#NonNull View itemView) {
super(itemView);
tv_name = (TextView) itemView.findViewById(R.id.name_contact);
tv_phone = (TextView) itemView.findViewById(R.id.phone_contact);
imageView = (ImageView) itemView.findViewById(R.id.img_contact);
}
private void setData(final String name, final String phone, String url, final String Lyrics){
Glide.with(itemView.getContext()).load(url).into(imageView);
this.tv_phone.setText(phone);
this.tv_name.setText(name);
itemView.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View v) {
Intent intent = new Intent(itemView.getContext(),LyricsActivit.class);
intent.putExtra("Lyrics",Lyrics);
intent.putExtra("albumname",phone);
intent.putExtra("songname",name);
itemView.getContext().startActivity(intent);
}
});
}
}
}
Screen Shot of My ActivityApp Output
I want above toolbar search view to work on tabs(fragment) Hope I explain my problem

Create a view pager and tab layout together. it will be resolved.Here is an example.

Android populate firebase data in recycleview fragment tablayout message: E/RecyclerView: No adapter attached; skipping layout

I'm new with android firebase. My problem is that I would like to display the list of my data in the database in a
recycleview. I have a tablayout that contains 3 tabs. it's in the first tab that I want to display my data, I use a fragment
in which I met my recycleview, i also the method
Blockquote
addValueEventListener
Blockquote
to take my firebase data. Whenever I launch the application it displays nothing I have this message
Blockquote
E / RecyclerView: No adapter attached; skip the layout
Blockquote
.Is this someone can help me. Thanks in Advance
My Firebase Data[1]: https://imgur.com/gallery/uIOEPuA
HomeActivity.java
package com.example.saincurin.htfacile;
import android.os.Build;
import android.support.design.widget.NavigationView;
import android.support.design.widget.TabItem;
import android.support.design.widget.TabLayout;
import android.support.v4.content.ContextCompat;
import android.support.v4.view.GravityCompat;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
import com.example.saincurin.htfacile.Adapters.PageAdapter;
public class HomeActivity extends AppCompatActivity {
private Toolbar toolbar;
TabLayout tabLayout;
ViewPager viewPager;
private DrawerLayout mDrawer;
private NavigationView nvDrawer;
private ActionBarDrawerToggle drawerToggle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
toolbar = findViewById(R.id.toolbar);
mDrawer = findViewById(R.id.drawer_layout);
nvDrawer = findViewById(R.id.nvView);
tabLayout = findViewById(R.id.tabLayout);
viewPager = findViewById(R.id.viewPager);
toolbar.setTitle(getResources().getString(R.string.app_name));
setSupportActionBar(toolbar);
// Set up Drawer View
PagerAdapter pagerAdapter = new PageAdapter(getSupportFragmentManager(), HomeActivity.this);
viewPager.setAdapter(pagerAdapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
getWindow().setStatusBarColor(ContextCompat.getColor(HomeActivity.this,
R.color.colorAccent));
}
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, mDrawer, toolbar,
R.string.drawer_open, R.string.drawer_close);
mDrawer.addDrawerListener(toggle);
toggle.syncState();
// give the Tablayout the viewPager
tabLayout.setupWithViewPager(viewPager);
// setupDrawerContent(nvDrawer);
}
#Override
public void onBackPressed() {
if (mDrawer.isDrawerOpen(GravityCompat.START)) {
mDrawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
// private void setupDrawerContent(NavigationView navigationView) {
// navigationView.setNavigationItemSelectedListener(
// new NavigationView.OnNavigationItemSelectedListener() {
// #Override
// public boolean onNavigationItemSelected(MenuItem menuItem) {
// selectDrawerItem(menuItem);
// return true;
// }
// });
// }
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_products, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == R.id.action_more) {
Toast.makeText(this, "The more is selected", Toast.LENGTH_SHORT).show();
}else if (item.getItemId() == R.id.action_search) {
Toast.makeText(this, "The search is selected", Toast.LENGTH_SHORT ).show();
}else if (item.getItemId() == R.id.drawer_layout) {
mDrawer.openDrawer(GravityCompat.START);
}
return true;
}
}
My Model
package com.example.saincurin.htfacile.ModelData;
public class DataModel {
private String description;
private String name;
private String image;
private String price;
private String quantity;
//constructor
public DataModel() {
}
public DataModel(String name, /*String description,*/ String image, String price) {
this.name = name;
// this.description = description;
this.image = image;
this.price = price;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getImage() {
return image;
}
public void setImage(String image) {
this.image = image;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getQuantity() {
return quantity;
}
public void setQuantity(String quantity) {
this.quantity = quantity;
}
public String getPrice() {
return price;
}
public void setPrice(String price) {
this.price = price;
}
}
My Adapter
package com.example.saincurin.htfacile.Adapters;
import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.saincurin.htfacile.ModelData.DataModel;
import com.example.saincurin.htfacile.R;
import com.squareup.picasso.Picasso;
import java.util.List;
// Create the basic adapter extending from RecyclerView.Adapter
// Note that we specify the custom ViewHolder which gives us access to our views
public class ProductsAdapter extends RecyclerView.Adapter<ProductsAdapter.ProductsviewHolder> {
private Context mcontext;
// Store a member variable for the contacts
private List<DataModel> mDataModel;
public ProductsAdapter(Context context, List<DataModel> mDataModel) {
mcontext = context;
this.mDataModel = mDataModel;
}
// Usually involves inflating a layout from XML and returning the holder
#NonNull
#Override
public ProductsviewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
//inflate the custom Layout
View dataView = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_row, parent, false);
//return a new holder instance
return new ProductsviewHolder(dataView);
}
// Involves populating data into the item through holder
#Override
public void onBindViewHolder(#NonNull ProductsviewHolder holder, int position) {
// Get the data model based on position
DataModel dataModel = mDataModel.get(position);
// Set item views based on your views and data model
holder.txtName.setText(dataModel.getName());
// holder.txtDescription.setText(dataModel.getDescription());
holder.txtPrice.setText(dataModel.getPrice());
Picasso.with(mcontext)
.load(dataModel.getImage())
.fit()
.centerCrop()
.into(holder.imageView);
}
#Override
public int getItemCount() {
return mDataModel.size();
}
// Provide a direct reference to each of the views within a data item
// Used to cache the views within the item layout for fast access
public class ProductsviewHolder extends RecyclerView.ViewHolder {
public TextView txtName;
// public TextView txtDescription;
public TextView txtPrice;
public TextView txtQuantity;
public ImageView imageView;
// We also create a constructor that accepts the entire item row
// and does the view lookups to find each subview
public ProductsviewHolder(View itemView) {
// Stores the itemView in a public final member variable that can be used
// to access the context from any ViewHolder instance.
super(itemView);
txtName = itemView.findViewById(R.id.rvTitleTv);
// txtDescription = itemView.findViewById(R.id.rDescriptionTv);
txtPrice = itemView.findViewById(R.id.rPrice);
imageView = itemView.findViewById(R.id.rImageView);
}
}
}
My first Fragment tab
package com.example.saincurin.htfacile.fragments;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
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.Toast;
import com.example.saincurin.htfacile.Adapters.ProductsAdapter;
import com.example.saincurin.htfacile.ModelData.DataModel;
import com.example.saincurin.htfacile.R;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import java.util.ArrayList;
import java.util.List;
/**
* A simple {#link Fragment} subclass.
*/
public class ProductsFragment extends Fragment {
private RecyclerView mRecycleView;
private ProductsAdapter mProductsAdapter;
private DatabaseReference mReference;
private List<DataModel> mDataModel;
View v;
public ProductsFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, final ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
v = inflater.inflate(R.layout.fragment_products, container, false);
//RecycleView
mRecycleView = v.findViewById(R.id.recycleView);
mRecycleView.setHasFixedSize(true);
//set Layout as LinearLayout
mRecycleView.setLayoutManager(new LinearLayoutManager(getContext()));
mDataModel = new ArrayList<>();
//send Query FirebaseDatabase
mReference = FirebaseDatabase.getInstance().getReference("uploads");
Log.e("DEBUG", "The Reference :"+mReference);
mReference.addValueEventListener(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot postSnapshot : dataSnapshot.getChildren()) {
DataModel dataModel = postSnapshot.getValue(DataModel.class);
mDataModel.add(dataModel);
}
// Log.e("DEBUG","The data model "+ mDataModel.toString());
mProductsAdapter = new ProductsAdapter(getContext(), mDataModel);
// Log.e("DEBUG","The data model "+ mProductsAdapter);
//set the adapter to the recyclerview
mRecycleView.setAdapter(mProductsAdapter);
mProductsAdapter.notifyDataSetChanged();
}
#Override
public void onCancelled(#NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), databaseError.getMessage(), Toast.LENGTH_LONG).show();
}
});
return v;
}
}
Layout for my first tab pager
<?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.ProductsFragment">
<!--RecycleView-->
<android.support.v7.widget.RecyclerView
android:id="#+id/recycleView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
Layout for my HomeActivity
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 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:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".HomeActivity"
tools:openDrawer="start">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/ThemeOverlay.AppCompat.Dark" />
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/toolbar"
style="#style/myCustomTabLayout"
android:background="#color/colorPrimary"
app:tabSelectedTextColor="#android:color/white"
app:tabTextColor="#android:color/black">
</android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nvView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#android:color/white"
app:headerLayout="#layout/nav_header"
app:menu="#menu/drawer_view" />
</android.support.v4.widget.DrawerLayout>
My item_row.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:cardBackgroundColor="#fff"
app:cardCornerRadius="3dp"
app:cardElevation="3dp"
app:cardUseCompatPadding="true"
app:contentPadding="5dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/rvTitleTv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Title"
android:textColor="#000"
android:textSize="22sp"
android:textStyle="bold" />
<ImageView
android:id="#+id/rImageView"
android:layout_width="match_parent"
android:layout_height="200dp"
android:adjustViewBounds="true"
android:background="#drawable/loading"
android:scaleType="center" />
<TextView
android:id="#+id/rPrice"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="150 gdes"
android:textSize="20dp"
android:textStyle="bold" />
<!--<TextView-->
<!--android:id="#+id/rDescriptionTv"-->
<!--android:layout_width="match_parent"-->
<!--android:layout_height="wrap_content"-->
<!--android:text="This is the post description that"-->
<!--android:textSize="20sp" />-->
</LinearLayout>
</android.support.v7.widget.CardView>

Welcome to StackOverflow. The RecyclerView is quite specific when it comes to its setup. So you need to make sure you set up the adapter before setting the layout manager and the fixedSize property.
Try changing your onCreateView method to this:
#Override
public View onCreateView(LayoutInflater inflater, final ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
v = inflater.inflate(R.layout.fragment_products, container, false);
// Notice that I changed the order of RecyclerView setup
mRecycleView = v.findViewById(R.id.recycleView);
mDataModel = new ArrayList<>();
mProductsAdapter = new ProductsAdapter(getContext(), mDataModel);
mRecyclerView.setAdapter(mProductsAdapter);
mRecycleView.setHasFixedSize(true);
//set Layout as LinearLayout
mRecycleView.setLayoutManager(new LinearLayoutManager(getContext()));
//send Query FirebaseDatabase
mReference = FirebaseDatabase.getInstance().getReference("uploads");
mReference.addValueEventListener(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot postSnapshot : dataSnapshot.getChildren()) {
DataModel dataModel = postSnapshot.getValue(DataModel.class);
mDataModel.add(dataModel);
}
mProductsAdapter.notifyDataSetChanged();
}
#Override
public void onCancelled(#NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), databaseError.getMessage(), Toast.LENGTH_LONG).show();
}
});
return v;
}

Setting viewpager with same fragment is not working as expected

I am trying to set up a view pager containing three tab with same fragment.
But its not working as expected. I wanted to show individual tab with different background color and textview showing its ID based on the ID that I am providing using bundle and argument.
I am providing the code and pictures to understand better.
MainActivity.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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"
tools:context="com.bdtask.myapplication.MainActivity">
<LinearLayout
android:id="#+id/tabviewholder"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.design.widget.TabLayout
android:id="#+id/viewpagertab"
android:layout_width="match_parent"
android:layout_height="48dp"
android:background="#android:color/white"
/>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#id/viewpagertab" />
</LinearLayout>
BlankFragment.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:id="#+id/container"
android:layout_height="match_parent"
tools:context="com.bdtask.myapplication.BlankFragment">
<!-- TODO: Update blank fragment layout -->
<TextView
android:gravity="center"
android:textSize="40sp"
android:id="#+id/textview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="#string/hello_blank_fragment" />
MainActivity.java
package com.bdtask.myapplication;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TabHost;
import android.widget.TableLayout;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ViewPagerAdapter viewPagerAdapter = new
ViewPagerAdapter(getSupportFragmentManager());
ViewPager viewPager = findViewById(R.id.viewpager);
TabLayout tabLayout = findViewById(R.id.viewpagertab);
for(int i = 0 ; i<3 ; i++){
Bundle bundle = new Bundle();
bundle.putString("id",String .valueOf(i));
BlankFragment blankFragment = new BlankFragment();
blankFragment.setArguments(bundle);
viewPagerAdapter.getFragments(blankFragment, "tab "+i);
}
viewPager.setAdapter(viewPagerAdapter);
tabLayout.setupWithViewPager(viewPager);
}
}
BlankFragment.java
package com.bdtask.myapplication;
import android.graphics.Color;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.TextView;
/**
* A simple {#link Fragment} subclass.
*/
public class BlankFragment extends Fragment {
TextView textView;
FrameLayout frameLayout;
String id;
public BlankFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
//
id = getArguments().getString("id");
return inflater.inflate(R.layout.fragment_blank, container, false);
}
#Override
public void onActivityCreated(#Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
frameLayout = getActivity().findViewById(R.id.container);
textView = getActivity().findViewById(R.id.textview);
setbackgroundandtext();
}
public void setbackgroundandtext() {
if(id.equals("0")){
frameLayout.setBackgroundColor(Color.parseColor("#ab44ab"));
textView.setText(id);
}
if(id.equals("1")){
frameLayout.setBackgroundColor(Color.parseColor("#ea32ea"));
textView.setText(id);
}
if(id.equals("2")){
frameLayout.setBackgroundColor(Color.parseColor("#67ae34"));
textView.setText(id);
}
}
}
ViewPagerAdapter.java
package com.bdtask.myapplication;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import java.util.ArrayList;
/**
* Created by Jibunnisa on 5/20/2017.
*/
public class ViewPagerAdapter extends FragmentStatePagerAdapter {
ArrayList<Fragment> fragments = new ArrayList<Fragment>();
ArrayList<String> titles = new ArrayList<String>();
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
public void getFragments(Fragment fragment, String title) {
this.fragments.add(fragment);
this.titles.add(title);
}
#Override
public Fragment getItem(int position) {
return fragments.get(position);
}
#Override
public int getCount() {
return fragments.size();
}
#Override
public CharSequence getPageTitle(int position) {
return titles.get(position);
}
}
output:

You're setting id here to be 0,1,2:
for(int i = 0 ; i<3 ; i++) {
Bundle bundle = new Bundle();
bundle.putString("id",String .valueOf(i));
BlankFragment blankFragment = new BlankFragment();
blankFragment.setArguments(bundle);
viewPagerAdapter.getFragments(blankFragment, "tab "+i);
}
But here you're checking if it is 1,2,3:
public void setbackgroundandtext() {
if(id.equals("1")){
frameLayout.setBackgroundColor(Color.parseColor("#ab44ab"));
textView.setText(id);
}
if(id.equals("2")){
frameLayout.setBackgroundColor(Color.parseColor("#ea32ea"));
textView.setText(id);
}
if(id.equals("3")){
frameLayout.setBackgroundColor(Color.parseColor("#67ae34"));
textView.setText(id);
}
}
So check if if it is 0,1,2 instead.
EDIT:
You need to find the views inside the fragment, not through the activity, move the findViewById code from onActivityCreated to onCreateView.
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
//
id = getArguments().getString("id");
View v =inflater.inflate(R.layout.fragment_blank, container, false);
frameLayout = v.findViewById(R.id.container);
textView = v.findViewById(R.id.textview);
return v;
}

Adding Long Press Listner to Listview inside a Recycler view

I have been searching a lot of tutorials to implement an on item long press Listener on a Listview which is Inside a RecyclerView. So far I had no luck.
I want a menu to more ap after holding the List Item for some time. I am attaching my code here please help me with it.
I have added my complete code Including the MainAcyivity.
I have a tabbed view which contains 3tabs. Inside the tab view, there is a fragment which contains a Listview.
I want the List to be long pressed to bring a popup menu which has as add or delete options.
MainActivity.java
package tabbardemo.com.materialdesigntabs_demo;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private static Toolbar toolbar;
private static ViewPager viewPager;
private static TabLayout tabLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
viewPager = (ViewPager) findViewById(R.id.viewPager);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabLayout);
tabLayout.setupWithViewPager(viewPager);//setting tab over viewpager
//Implementing tab selected listener over tablayout
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());//setting current selected item over viewpager
switch (tab.getPosition()) {
case 0:
Log.e("TAG","TAB1");
break;
case 1:
Log.e("TAG","TAB2");
break;
case 2:
Log.e("TAG","TAB3");
break;
}
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
//Setting View Pager
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFrag(new DummyFragment("Inbox"), "Inbox");
adapter.addFrag(new EventsFragment("QA"), "QA");
adapter.addFrag(new EventsFragment("Events"), "Events");
viewPager.setAdapter(adapter);
}
//View Pager fragments setting adapter class
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();//fragment arraylist
private final List<String> mFragmentTitleList = new ArrayList<>();//title arraylist
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
#Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
#Override
public int getCount() {
return mFragmentList.size();
}
//adding fragments and title method
public void addFrag(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
}
activity_main.xml
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/coordinatorLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<!-- AppBar Layout -->
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="fill_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<!-- Tab Layout for creating tabs -->
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</android.support.design.widget.AppBarLayout>
<!-- Helps handing the Fragments for each Tab -->
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
dummy_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/blue"
android:gravity="center"
android:orientation="vertical">
<!-- Recycler View -->
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scrollbars="none" />
</LinearLayout>
DummyFragment.java
package tabbardemo.com.materialdesigntabs_demo;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.GestureDetector;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import java.util.ArrayList;
/**
* Created by SONU on 16/09/15.
*/
public class DummyFragment extends Fragment {
private View view;
private String title;//String for tab title
private static RecyclerView recyclerView;
private OnItemClickListener mListener;
public interface OnItemClickListener {
public void onItemClick(View view, int position);
public void onLongItemClick(View view, int position);
}
public DummyFragment(String title) {
this.title = title;//Setting tab title
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view = inflater.inflate(R.layout.dummy_fragment, container, false);
setRecyclerView();
return view;
}
//Setting recycler view
private void setRecyclerView() {
recyclerView = (RecyclerView) view
.findViewById(R.id.recyclerView);
recyclerView.setHasFixedSize(true);
recyclerView
.setLayoutManager(new LinearLayoutManager(getActivity()));//Linear Items
ArrayList<String> arrayList = new ArrayList<>();
for (int i = 0; i < 20; i++) {
arrayList.add(title+" Items " + i);//Adding items to recycler view
}
RecyclerView_Adapter adapter = new RecyclerView_Adapter(getActivity(), arrayList);
recyclerView.setAdapter(adapter);// set adapter on recyclerview
}
}
RecyclerView_Adapter
package tabbardemo.com.materialdesigntabs_demo;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import java.util.ArrayList;
/**
* Created by SONU on 10/09/15.
*/
public class RecyclerView_Adapter extends
RecyclerView.Adapter<DemoViewHolder> {
private ArrayList<String> arrayList;
private Context context;
private OnItemClickListener mListener;
public interface OnItemClickListener {
public void onItemClick(View view, int position);
}
public RecyclerView_Adapter(Context context,
ArrayList<String> arrayList) {
this.context = context;
this.arrayList = arrayList;
}
#Override
public int getItemCount() {
return (null != arrayList ? arrayList.size() : 0);
}
#Override
public void onBindViewHolder(DemoViewHolder holder,
int position) {
final DemoViewHolder mainHolder = (DemoViewHolder) holder;
//Setting text over textview
// mainHolder.bind(arrayList.get(position), listener);
mainHolder.title.setText(arrayList.get(position));
}
#Override
public DemoViewHolder onCreateViewHolder(
ViewGroup viewGroup, int viewType) {
LayoutInflater mInflater = LayoutInflater.from(viewGroup.getContext());
ViewGroup mainGroup = (ViewGroup) mInflater.inflate(
R.layout.item_row, viewGroup, false);
DemoViewHolder mainHolder = new DemoViewHolder(mainGroup) {
#Override
public String toString() {
return super.toString();
}
};
// 13805 ////////////////////////////////
return mainHolder;
}
}
DemoViewHolder.java
package tabbardemo.com.materialdesigntabs_demo;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.TextView;
/**
* Created by SONU on 31/08/15.
*/
public abstract class DemoViewHolder extends RecyclerView.ViewHolder {
public TextView title;
public DemoViewHolder(View view) {
super(view);
this.title = (TextView) view.findViewById(R.id.cardTitle);
}
}
ite_row.xml
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/iv_image"
android:padding="10dp"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:src="#mipmap/ic_launcher">
</ImageView>
<TextView
android:id="#+id/cardTitle"
android:layout_toRightOf ="#+id/iv_image"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:padding="15dp"
android:text="Card Title"
android:textColor="#000000"
android:textSize="17sp" ></TextView>
</RelativeLayout>

1- create your menu items (your list item to show on long click)
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/one"
android:title="One"/>
<item
android:id="#+id/two"
android:title="Two"/>
<item
android:id="#+id/three"
android:title="Three"/>
</menu>
2- setup listener and menu.
#Override
public void onBindViewHolder(DemoViewHolder holder, int position) {
holder.title.setText(arrayList.get(position));
holder.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
showMenu(v);
return true;
}
});
}
// method to open a popup menu(list) upon long click in the recyclerView item
private void showMenu(View view){
PopupMenu popup = new PopupMenu(context,view );
popup.getMenuInflater()
.inflate(R.menu.popup_menu, popup.getMenu());
popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
return true;
}
});
popup.show();
}

When you are doing setOnItemLongClickListener() in the ListView:
lv.setOnItemLongClickListener(new OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
int pos, long id) {
// Dialog/Popup will appears here
showAddDeleteDialog();
return true;
}
});
public void showAddDeleteDialog(){
AlertDialog.Builder dialog = new AlertDialog.Builder(MainActivity.this);
dialog.setCancelable(false);
dialog.setTitle("Add or Delete Dialog");
// dialog.setMessage("Are you sure you want to delete this entry?" );
dialog.setPositiveButton("Add", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int id) {
//Action for "Add".
}
})
.setNegativeButton("Delete", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
//Action for "Delete".
}
});
final AlertDialog alert = dialog.create();
alert.show();
}

My ViewPager is empty

I've created an about activity in my Android application, with a ViewPager. But I can't see any content
My AboutActivity.java:
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v13.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.loloof64.android.chess_positions_archiver.R;
/**
* The about activity
*/
public class AboutActivity extends Activity {
static final int NUM_ITEMS = 2;
AboutDialogFragmentPagerAdapter pagerAdapter;
ViewPager viewPager;
static String pagesContents [] = new String[NUM_ITEMS];
public void exit(View view){
finish();
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.about_dialog_layout);
pagesContents[0] = getString(R.string.this_app_manual);
pagesContents[1] = getString(R.string.about_resources_content);
pagerAdapter = new AboutDialogFragmentPagerAdapter(getFragmentManager(),
new String[]{
"Chess Positions Archiver",
getString(R.string.about_resources_title)
});
viewPager = (ViewPager) findViewById(R.id.about_dialog_pager);
viewPager.setAdapter(pagerAdapter);
viewPager.setCurrentItem(0);
}
public static class AboutDialogFragmentPagerAdapter extends FragmentStatePagerAdapter {
private String [] titles;
public AboutDialogFragmentPagerAdapter(FragmentManager fragmentManager, String [] titles){
super(fragmentManager);
this.titles = titles;
}
#Override
public Fragment getItem(int position) {
return AboutDialogSingleFragment.newInstance(position);
}
#Override
public int getCount() {
return NUM_ITEMS;
}
#Override
public CharSequence getPageTitle(int position) {
return titles[position];
}
}
public static class AboutDialogSingleFragment extends Fragment {
static String PAGE_TEXT_KEY = "PageTextKey";
private String pageText;
static AboutDialogSingleFragment newInstance(int position){
AboutDialogSingleFragment fragment = new AboutDialogSingleFragment();
Bundle arguments = new Bundle();
arguments.putString(PAGE_TEXT_KEY, pagesContents[position]);
fragment.setArguments(arguments);
return fragment;
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.about_dialog_single_page_layout, container, false);
TextView pageTextView = (TextView) view.findViewById(R.id.about_dialog_page_textview);
pageTextView.setText(pageText);
container.addView(view);
return view;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
pageText = getArguments() != null ? getArguments().getString(PAGE_TEXT_KEY) : getResources().getString(R.string.about_dialog_content_error);
}
}
}
My about_dialog_layout.xml :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/about_dialog_tabs"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:id="#+id/about_dialog_pager"
android:layout_width="match_parent"
android:layout_height="0px"
android:layout_weight="1">
</android.support.v4.view.ViewPager>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="#string/quit_about"
android:onClick="exit" />
</RelativeLayout>
My about_dialog_single_page_layout.xml :
<?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">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/about_dialog_page_textview"/>
</LinearLayout>
I am using the support library 13.
So, what is my programming error ?

android:layout_weight="1" works only with LinearLayout (it is a property of LinearLayout). Since the ViewPager's parent is a RelativeLayout the property is ignored, and your ViewPager has height 0, which explain why you are not see anything

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

use Edit text to search in recyclerview inside fragment - android

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My ViewPager is empty

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