Android Firebase RecyclerView – With Images and Text

Read-only properties in JavaFX 8

Android Firebase RecyclerView – With Images and Text



Rating : 5/5 (1)




NB/= THE CONFIGURATION FOR FIREBASE HAS RECENTLY CHANGED,SO PLEASE YOU BETTER WATCH OUR NEWER FIREBASE TUTORIALS.THE CONCEPT OF IMAGE URL IS STILL RELEVANT,ONLY CONFIGURATION. Hello friends.Today we Explore Android Firebase RecyclerView - With Images and Text.Our purpose is simple: Store our text data and image urls in Firebase database.Then retreive them in realtime.We then use Picasso to fetch the image via our newfound URL. I hosted my images in Cloudinary Look guys,if your want detailed explanations of Android Firebase RecyclerView please watch my video tutorial here. And ooh,subscribe and leave us a big like if you don't mind. Cheers.

SECTION 1 : Our MainActivity

package com.tutorials.hp.recyclerfirebaseimagestext;
import android.app.Dialog;
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.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.EditText;
import com.tutorials.hp.recyclerfirebaseimagestext.mFireBase.FireBaseClient;
public class MainActivity extends AppCompatActivity {
     final static String DB_URL="https://ourdata.firebaseio.com/";
    EditText nameEditText,urlEditText;
    Button saveBtn;
    RecyclerView rv;
    FireBaseClient fireBaseClient;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        rv= (RecyclerView) findViewById(R.id.mRecylcerID);
        rv.setLayoutManager(new LinearLayoutManager(this));
        fireBaseClient=new FireBaseClient(this,DB_URL,rv);
        fireBaseClient.refreshData();
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                displayDialog();
            }
        });
    }
    //SHOW INPUT DIALOG
    private void displayDialog()
    {
        Dialog d=new Dialog(this);
        d.setTitle("Save Online");
        d.setContentView(R.layout.dialoglayout);
        nameEditText= (EditText) d.findViewById(R.id.nameEditText);
        urlEditText= (EditText) d.findViewById(R.id.urlEditText);
        saveBtn= (Button) d.findViewById(R.id.saveBtn);
        saveBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                fireBaseClient.saveOnline(nameEditText.getText().toString(),urlEditText.getText().toString());
                nameEditText.setText("");
                urlEditText.setText("");
            }
        });
        //SHOW
        d.show();
    }
}

SECTION 2 : Our POJO Class

package com.tutorials.hp.recyclerfirebaseimagestext.mData;
/**
 * Created by Oclemmy on 4/12/2016 for ProgrammingWizards Channel.
 */
public class Movie {
    private String name;
    private String url;
    public Movie() {
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getUrl() {
        return url;
    }
    public void setUrl(String url) {
        this.url = url;
    }
}

SECTION 3 : Our Picasso Client

  • For loading and cahing images
package com.tutorials.hp.recyclerfirebaseimagestext.mPicasso;
import android.content.Context;
import android.widget.ImageView;
import com.squareup.picasso.Picasso;
import com.tutorials.hp.recyclerfirebaseimagestext.R;
/**
 * Created by Oclemmy on 4/12/2016 for ProgrammingWizards Channel.
 */
public class PicassoClient {
    public static void downloadImage(Context c,String url,ImageView img)
    {
        if(url != null && url.length()>0)
        {
            Picasso.with(c).load(url).placeholder(R.drawable.placeholder).into(img);
        }else {
            Picasso.with(c).load(R.drawable.placeholder).into(img);
        }
    }
}

SECTION 4 : Our Firebase Client class

  • To talk to our Firebase db
package com.tutorials.hp.recyclerfirebaseimagestext.mFireBase;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.widget.Toast;
import com.firebase.client.ChildEventListener;
import com.firebase.client.DataSnapshot;
import com.firebase.client.Firebase;
import com.firebase.client.FirebaseError;
import com.tutorials.hp.recyclerfirebaseimagestext.mData.Movie;
import com.tutorials.hp.recyclerfirebaseimagestext.mRecycler.MyAdapter;
import java.util.ArrayList;
/**
 * Created by Oclemmy on 4/12/2016 for ProgrammingWizards Channel.
 */
public class FireBaseClient {
    Context c;
    String DB_URL;
    RecyclerView rv;
    Firebase fire;
    ArrayList<Movie> movies=new ArrayList<>();
    MyAdapter adapter;
    public FireBaseClient(Context c, String DB_URL, RecyclerView rv) {
        this.c = c;
        this.DB_URL = DB_URL;
        this.rv = rv;
        //INITIALIZE
        Firebase.setAndroidContext(c);
        //INSTANTIATE
        fire=new Firebase(DB_URL);
    }
    //SAVE
    public void saveOnline(String name,String url)
    {
        Movie m=new Movie();
        m.setName(name);
        m.setUrl(url);
        fire.child("Movie").push().setValue(m);
    }
    //RETRIEVE
    public void refreshData()
    {
        fire.addChildEventListener(new ChildEventListener() {
            @Override
            public void onChildAdded(DataSnapshot dataSnapshot, String s) {
                getUpdates(dataSnapshot);
            }
            @Override
            public void onChildChanged(DataSnapshot dataSnapshot, String s) {
                 getUpdates(dataSnapshot);
            }
            @Override
            public void onChildRemoved(DataSnapshot dataSnapshot) {
            }
            @Override
            public void onChildMoved(DataSnapshot dataSnapshot, String s) {
            }
            @Override
            public void onCancelled(FirebaseError firebaseError) {
            }
        });
    }
    private void getUpdates(DataSnapshot dataSnapshot)
    {
        movies.clear();
        for(DataSnapshot ds : dataSnapshot.getChildren())
        {
            Movie m=new Movie();
            m.setName(ds.getValue(Movie.class).getName());
            m.setUrl(ds.getValue(Movie.class).getUrl());
            movies.add(m);
        }
        if(movies.size()>0)
        {
            adapter=new MyAdapter(c,movies);
            rv.setAdapter(adapter);
        }else {
            Toast.makeText(c,"No data",Toast.LENGTH_SHORT).show();
        }
    }
}

SECTION 5 : Our ViewHolder class

  • Hold views for recycling
package com.tutorials.hp.recyclerfirebaseimagestext.mRecycler;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import com.tutorials.hp.recyclerfirebaseimagestext.R;
/**
 * Created by Oclemmy on 4/12/2016 for ProgrammingWizards Channel.
 */
public class MyHolder extends RecyclerView.ViewHolder {
    TextView nameTxt;
    ImageView img;
    public MyHolder(View itemView) {
        super(itemView);
        nameTxt= (TextView) itemView.findViewById(R.id.nameTxt);
        img= (ImageView) itemView.findViewById(R.id.movieImage);
    }
}

SECTION 6 : Our Adapter class

  • Layout inflation.
  • Then bind data to views
package com.tutorials.hp.recyclerfirebaseimagestext.mRecycler;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.tutorials.hp.recyclerfirebaseimagestext.R;
import com.tutorials.hp.recyclerfirebaseimagestext.mData.Movie;
import com.tutorials.hp.recyclerfirebaseimagestext.mPicasso.PicassoClient;
import java.util.ArrayList;
/**
 * Created by Oclemmy on 4/12/2016 for ProgrammingWizards Channel.
 */
public class MyAdapter extends RecyclerView.Adapter<MyHolder> {
    Context c;
    ArrayList<Movie> movies;
    public MyAdapter(Context c, ArrayList<Movie> movies) {
        this.c = c;
        this.movies = movies;
    }
    @Override
    public MyHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v= LayoutInflater.from(parent.getContext()).inflate(R.layout.model,parent,false);
        MyHolder holder=new MyHolder(v);
        return holder;
    }
    @Override
    public void onBindViewHolder(MyHolder holder, int position) {
        holder.nameTxt.setText(movies.get(position).getName());
        PicassoClient.downloadImage(c,movies.get(position).getUrl(),holder.img);
    }
    @Override
    public int getItemCount() {
        return movies.size();
    }
}

SECTION 7 : Our Layouts

Our MainActivity Layout

<?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.tutorials.hp.recyclerfirebaseimagestext.MainActivity">
    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">
        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay" />
    </android.support.design.widget.AppBarLayout>
    <include layout="@layout/content_main" />
    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        android:src="@android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>

Our ContentMain Layout

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="com.tutorials.hp.recyclerfirebaseimagestext.MainActivity"
    tools:showIn="@layout/activity_main">
    <android.support.v7.widget.RecyclerView
        android:id="@+id/mRecylcerID"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"></android.support.v7.widget.RecyclerView>
</RelativeLayout>

Our Model Layout

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal" android:layout_width="match_parent"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:layout_margin="10dp"
    card_view:cardCornerRadius="10dp"
    card_view:cardElevation="10dp"
    android:layout_height="wrap_content">
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/movieImage"
            android:padding="10dp"
            android:src="@drawable/placeholder" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="Name"
            android:id="@+id/nameTxt"
            android:padding="10dp"
            android:textColor="@color/colorAccent"
            android:layout_below="@+id/movieImage"
            android:layout_alignParentLeft="true"
             />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text="TV Show"
            android:id="@+id/posTxt"
            android:padding="10dp"
            android:layout_below="@+id/movieImage"
            android:layout_alignParentRight="true" />
        <CheckBox
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/chk"
            android:layout_alignParentRight="true"
            />
    </RelativeLayout>
</android.support.v7.widget.CardView>

Our CustomDialog 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">
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="?attr/actionBarSize"
        android:orientation="vertical"
        android:paddingLeft="15dp"
        android:paddingRight="15dp"
        android:paddingTop="50dp">
        <android.support.design.widget.TextInputLayout
            android:id="@+id/nameLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <EditText
                android:id="@+id/nameEditText"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:singleLine="true"
                android:hint= "Name" />
        </android.support.design.widget.TextInputLayout>
        <android.support.design.widget.TextInputLayout
            android:id="@+id/urlLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <EditText
                android:id="@+id/urlEditText"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="Url" />
        </android.support.design.widget.TextInputLayout>
        <Button android:id="@+id/saveBtn"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="Save"
            android:clickable="true"
            android:background="@color/colorAccent"
            android:layout_marginTop="40dp"
            android:textColor="@android:color/white"/>
    </LinearLayout>
</LinearLayout>

SECTION 8 : Our Manifets

Make sure you add Internet permission in your manifest file:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.tutorials.hp.recyclerfirebaseimagestext">
    <uses-permission android:name="android.permission.INTERNET"/>
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>

Android Firebase RecyclerView with Images and Text

 



Rating :

  • vinod sonava says:

    can i get all image from firebase Stroage bucket in listview .. i can store image in firebase stroage bucket but i want to show all image in listview ?????

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