How to retrieve data from firebase database in android









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Retrieving images from Firebase does not work? Hi I am working on upload and retrieve images from Firebase. I have successfully done the uploading part, but while doing for the retrieving one. I have came across a problem where i am unable to fetch image from Firebase. I am using Picasso version: 2.5.2



QuoteList.java



public class QuoteList extends AppCompatActivity 

private StorageReference storageRef;

private RecyclerView mRecyclerView;
private DatabaseReference mReference;



@Override
protected void onCreate(Bundle savedInstanceState)


super.onCreate(savedInstanceState);
setContentView(R.layout.activity_quote_list);

final LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
mRecyclerView = findViewById(R.id.quotes_list);
mRecyclerView.setLayoutManager(layoutManager);

mReference = FirebaseDatabase.getInstance().getReference().child("Quotes");



@Override
protected void onStart()
super.onStart();

FirebaseRecyclerAdapter<Quote, QuoteViewHolder> firebaseRecyclerAdapter =
new FirebaseRecyclerAdapter<Quote, QuoteViewHolder>(
Quote.class,
R.layout.quote_row,
QuoteViewHolder.class,
mReference
)

@Override
protected void populateViewHolder(QuoteViewHolder viewHolder , Quote model , int position)

viewHolder.setQuotes(model.getQuotes());
viewHolder.setQuoteAuthor(model.getQuote_Author());
viewHolder.setImage(getApplicationContext(),model.getImages());



;

mRecyclerView.setAdapter(firebaseRecyclerAdapter);



public class QuoteViewHolder extends RecyclerView.ViewHolder

View mView;

public QuoteViewHolder(View itemView)
super(itemView);

mView = itemView;


public void setQuotes(String Quote)
TextView post_quote = (TextView) mView.findViewById(R.id.post_quote);
post_quote.setText(Quote);


public void setQuoteAuthor(String QuoteAuthor)
TextView post_quoteAuthor = (TextView) mView.findViewById(R.id.post_author);
post_quoteAuthor.setText(QuoteAuthor);


public void setImage(Context ctx, String image)
ImageView post_image = (ImageView) mView.findViewById(R.id.post_image);
Picasso.with(ctx).load(image).into(post_image);




@Override
public boolean onCreateOptionsMenu(Menu menu)

getMenuInflater().inflate(R.menu.main_menu, menu);
return super.onCreateOptionsMenu(menu);





For reference i have used a Youtube Link.










share|improve this question























  • This demo is, how to fetch firebase data in RecycleView? try this, Hope It's helpful for you. Thank You. github.com/chetanmahajan850/RecycleviewDemo
    – chetan mahajan
    Nov 9 at 5:40










  • What does model.getImages() return? Please responde with @.
    – Alex Mamo
    Nov 9 at 11:03










  • @alex it will reference to a another class called Quote.java where i used gettter setter and constructor.
    – itz Prateek
    Nov 9 at 15:53










  • @itzPrateek It is or it is not returning the desired url?
    – Alex Mamo
    Nov 9 at 15:55










  • no it wasn't @AlexMamo
    – itz Prateek
    Nov 9 at 18:17















up vote
0
down vote

favorite












Retrieving images from Firebase does not work? Hi I am working on upload and retrieve images from Firebase. I have successfully done the uploading part, but while doing for the retrieving one. I have came across a problem where i am unable to fetch image from Firebase. I am using Picasso version: 2.5.2



QuoteList.java



public class QuoteList extends AppCompatActivity 

private StorageReference storageRef;

private RecyclerView mRecyclerView;
private DatabaseReference mReference;



@Override
protected void onCreate(Bundle savedInstanceState)


super.onCreate(savedInstanceState);
setContentView(R.layout.activity_quote_list);

final LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
mRecyclerView = findViewById(R.id.quotes_list);
mRecyclerView.setLayoutManager(layoutManager);

mReference = FirebaseDatabase.getInstance().getReference().child("Quotes");



@Override
protected void onStart()
super.onStart();

FirebaseRecyclerAdapter<Quote, QuoteViewHolder> firebaseRecyclerAdapter =
new FirebaseRecyclerAdapter<Quote, QuoteViewHolder>(
Quote.class,
R.layout.quote_row,
QuoteViewHolder.class,
mReference
)

@Override
protected void populateViewHolder(QuoteViewHolder viewHolder , Quote model , int position)

viewHolder.setQuotes(model.getQuotes());
viewHolder.setQuoteAuthor(model.getQuote_Author());
viewHolder.setImage(getApplicationContext(),model.getImages());



;

mRecyclerView.setAdapter(firebaseRecyclerAdapter);



public class QuoteViewHolder extends RecyclerView.ViewHolder

View mView;

public QuoteViewHolder(View itemView)
super(itemView);

mView = itemView;


public void setQuotes(String Quote)
TextView post_quote = (TextView) mView.findViewById(R.id.post_quote);
post_quote.setText(Quote);


public void setQuoteAuthor(String QuoteAuthor)
TextView post_quoteAuthor = (TextView) mView.findViewById(R.id.post_author);
post_quoteAuthor.setText(QuoteAuthor);


public void setImage(Context ctx, String image)
ImageView post_image = (ImageView) mView.findViewById(R.id.post_image);
Picasso.with(ctx).load(image).into(post_image);




@Override
public boolean onCreateOptionsMenu(Menu menu)

getMenuInflater().inflate(R.menu.main_menu, menu);
return super.onCreateOptionsMenu(menu);





For reference i have used a Youtube Link.










share|improve this question























  • This demo is, how to fetch firebase data in RecycleView? try this, Hope It's helpful for you. Thank You. github.com/chetanmahajan850/RecycleviewDemo
    – chetan mahajan
    Nov 9 at 5:40










  • What does model.getImages() return? Please responde with @.
    – Alex Mamo
    Nov 9 at 11:03










  • @alex it will reference to a another class called Quote.java where i used gettter setter and constructor.
    – itz Prateek
    Nov 9 at 15:53










  • @itzPrateek It is or it is not returning the desired url?
    – Alex Mamo
    Nov 9 at 15:55










  • no it wasn't @AlexMamo
    – itz Prateek
    Nov 9 at 18:17













up vote
0
down vote

favorite









up vote
0
down vote

favorite











Retrieving images from Firebase does not work? Hi I am working on upload and retrieve images from Firebase. I have successfully done the uploading part, but while doing for the retrieving one. I have came across a problem where i am unable to fetch image from Firebase. I am using Picasso version: 2.5.2



QuoteList.java



public class QuoteList extends AppCompatActivity 

private StorageReference storageRef;

private RecyclerView mRecyclerView;
private DatabaseReference mReference;



@Override
protected void onCreate(Bundle savedInstanceState)


super.onCreate(savedInstanceState);
setContentView(R.layout.activity_quote_list);

final LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
mRecyclerView = findViewById(R.id.quotes_list);
mRecyclerView.setLayoutManager(layoutManager);

mReference = FirebaseDatabase.getInstance().getReference().child("Quotes");



@Override
protected void onStart()
super.onStart();

FirebaseRecyclerAdapter<Quote, QuoteViewHolder> firebaseRecyclerAdapter =
new FirebaseRecyclerAdapter<Quote, QuoteViewHolder>(
Quote.class,
R.layout.quote_row,
QuoteViewHolder.class,
mReference
)

@Override
protected void populateViewHolder(QuoteViewHolder viewHolder , Quote model , int position)

viewHolder.setQuotes(model.getQuotes());
viewHolder.setQuoteAuthor(model.getQuote_Author());
viewHolder.setImage(getApplicationContext(),model.getImages());



;

mRecyclerView.setAdapter(firebaseRecyclerAdapter);



public class QuoteViewHolder extends RecyclerView.ViewHolder

View mView;

public QuoteViewHolder(View itemView)
super(itemView);

mView = itemView;


public void setQuotes(String Quote)
TextView post_quote = (TextView) mView.findViewById(R.id.post_quote);
post_quote.setText(Quote);


public void setQuoteAuthor(String QuoteAuthor)
TextView post_quoteAuthor = (TextView) mView.findViewById(R.id.post_author);
post_quoteAuthor.setText(QuoteAuthor);


public void setImage(Context ctx, String image)
ImageView post_image = (ImageView) mView.findViewById(R.id.post_image);
Picasso.with(ctx).load(image).into(post_image);




@Override
public boolean onCreateOptionsMenu(Menu menu)

getMenuInflater().inflate(R.menu.main_menu, menu);
return super.onCreateOptionsMenu(menu);





For reference i have used a Youtube Link.










share|improve this question















Retrieving images from Firebase does not work? Hi I am working on upload and retrieve images from Firebase. I have successfully done the uploading part, but while doing for the retrieving one. I have came across a problem where i am unable to fetch image from Firebase. I am using Picasso version: 2.5.2



QuoteList.java



public class QuoteList extends AppCompatActivity 

private StorageReference storageRef;

private RecyclerView mRecyclerView;
private DatabaseReference mReference;



@Override
protected void onCreate(Bundle savedInstanceState)


super.onCreate(savedInstanceState);
setContentView(R.layout.activity_quote_list);

final LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
mRecyclerView = findViewById(R.id.quotes_list);
mRecyclerView.setLayoutManager(layoutManager);

mReference = FirebaseDatabase.getInstance().getReference().child("Quotes");



@Override
protected void onStart()
super.onStart();

FirebaseRecyclerAdapter<Quote, QuoteViewHolder> firebaseRecyclerAdapter =
new FirebaseRecyclerAdapter<Quote, QuoteViewHolder>(
Quote.class,
R.layout.quote_row,
QuoteViewHolder.class,
mReference
)

@Override
protected void populateViewHolder(QuoteViewHolder viewHolder , Quote model , int position)

viewHolder.setQuotes(model.getQuotes());
viewHolder.setQuoteAuthor(model.getQuote_Author());
viewHolder.setImage(getApplicationContext(),model.getImages());



;

mRecyclerView.setAdapter(firebaseRecyclerAdapter);



public class QuoteViewHolder extends RecyclerView.ViewHolder

View mView;

public QuoteViewHolder(View itemView)
super(itemView);

mView = itemView;


public void setQuotes(String Quote)
TextView post_quote = (TextView) mView.findViewById(R.id.post_quote);
post_quote.setText(Quote);


public void setQuoteAuthor(String QuoteAuthor)
TextView post_quoteAuthor = (TextView) mView.findViewById(R.id.post_author);
post_quoteAuthor.setText(QuoteAuthor);


public void setImage(Context ctx, String image)
ImageView post_image = (ImageView) mView.findViewById(R.id.post_image);
Picasso.with(ctx).load(image).into(post_image);




@Override
public boolean onCreateOptionsMenu(Menu menu)

getMenuInflater().inflate(R.menu.main_menu, menu);
return super.onCreateOptionsMenu(menu);





For reference i have used a Youtube Link.







android firebase android-studio firebase-realtime-database picasso






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 9 at 4:20









Rajendra

3516




3516










asked Nov 8 at 22:08









itz Prateek

279




279











  • This demo is, how to fetch firebase data in RecycleView? try this, Hope It's helpful for you. Thank You. github.com/chetanmahajan850/RecycleviewDemo
    – chetan mahajan
    Nov 9 at 5:40










  • What does model.getImages() return? Please responde with @.
    – Alex Mamo
    Nov 9 at 11:03










  • @alex it will reference to a another class called Quote.java where i used gettter setter and constructor.
    – itz Prateek
    Nov 9 at 15:53










  • @itzPrateek It is or it is not returning the desired url?
    – Alex Mamo
    Nov 9 at 15:55










  • no it wasn't @AlexMamo
    – itz Prateek
    Nov 9 at 18:17

















  • This demo is, how to fetch firebase data in RecycleView? try this, Hope It's helpful for you. Thank You. github.com/chetanmahajan850/RecycleviewDemo
    – chetan mahajan
    Nov 9 at 5:40










  • What does model.getImages() return? Please responde with @.
    – Alex Mamo
    Nov 9 at 11:03










  • @alex it will reference to a another class called Quote.java where i used gettter setter and constructor.
    – itz Prateek
    Nov 9 at 15:53










  • @itzPrateek It is or it is not returning the desired url?
    – Alex Mamo
    Nov 9 at 15:55










  • no it wasn't @AlexMamo
    – itz Prateek
    Nov 9 at 18:17
















This demo is, how to fetch firebase data in RecycleView? try this, Hope It's helpful for you. Thank You. github.com/chetanmahajan850/RecycleviewDemo
– chetan mahajan
Nov 9 at 5:40




This demo is, how to fetch firebase data in RecycleView? try this, Hope It's helpful for you. Thank You. github.com/chetanmahajan850/RecycleviewDemo
– chetan mahajan
Nov 9 at 5:40












What does model.getImages() return? Please responde with @.
– Alex Mamo
Nov 9 at 11:03




What does model.getImages() return? Please responde with @.
– Alex Mamo
Nov 9 at 11:03












@alex it will reference to a another class called Quote.java where i used gettter setter and constructor.
– itz Prateek
Nov 9 at 15:53




@alex it will reference to a another class called Quote.java where i used gettter setter and constructor.
– itz Prateek
Nov 9 at 15:53












@itzPrateek It is or it is not returning the desired url?
– Alex Mamo
Nov 9 at 15:55




@itzPrateek It is or it is not returning the desired url?
– Alex Mamo
Nov 9 at 15:55












no it wasn't @AlexMamo
– itz Prateek
Nov 9 at 18:17





no it wasn't @AlexMamo
– itz Prateek
Nov 9 at 18:17


















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