Esta es la Parte 12 del tutorial «Crear una aplicación de redes sociales en Android Studio» , y vamos a cubrir las siguientes funcionalidades en este artículo:
- Vamos a ver la lista de usuarios a los que les gusta un blog en particular.
- Después de hacer clic en Me gusta total, seremos redirigidos a PostLikedBy.Activity.
- En eso, usaremos una vista de reciclador para mostrar la lista de usuarios a los que les ha gustado una publicación.
- También podemos ver la lista de todos los usuarios a los que les gusta nuestra publicación desde PostDetailActivity.class .
Implementación paso a paso
Paso 1: trabajar con el archivo AdapterPosts.java. Redirigir a PostLikedByActivity.class para ver toda la lista de usuarios
holder.like.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent(holder.itemView.getContext(), PostLikedByActivity.class);
intent.putExtra("pid",pid);
holder.itemView.getContext().startActivity(intent);
}
});
A continuación se muestra el código del archivo AdapterPosts.java .
Java
package com.example.socialmediaapp;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.text.format.DateFormat;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.PopupMenu;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.bumptech.glide.Glide;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.FirebaseAuth;
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.Query;
import com.google.firebase.database.ValueEventListener;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import java.util.Calendar;
import java.util.List;
import java.util.Locale;
public class AdapterPosts extends RecyclerView.Adapter<com.example.socialmediaapp.AdapterPosts.MyHolder> {
Context context;
String myuid;
private DatabaseReference liekeref, postref;
boolean mprocesslike = false;
public AdapterPosts(Context context, List<ModelPost> modelPosts) {
this.context = context;
this.modelPosts = modelPosts;
myuid = FirebaseAuth.getInstance().getCurrentUser().getUid();
liekeref = FirebaseDatabase.getInstance().getReference().child("Likes");
postref = FirebaseDatabase.getInstance().getReference().child("Posts");
}
List<ModelPost> modelPosts;
@NonNull
@Override
public MyHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context).inflate(R.layout.row_posts, parent, false);
return new MyHolder(view);
}
@Override
public void onBindViewHolder(@NonNull final MyHolder holder, final int position) {
final String uid = modelPosts.get(position).getUid();
String nameh = modelPosts.get(position).getUname();
final String titlee = modelPosts.get(position).getTitle();
final String descri = modelPosts.get(position).getDescription();
final String ptime = modelPosts.get(position).getPtime();
String dp = modelPosts.get(position).getUdp();
String plike = modelPosts.get(position).getPlike();
final String image = modelPosts.get(position).getUimage();
String email = modelPosts.get(position).getUemail();
String comm = modelPosts.get(position).getPcomments();
final String pid = modelPosts.get(position).getPtime();
Calendar calendar = Calendar.getInstance(Locale.ENGLISH);
calendar.setTimeInMillis(Long.parseLong(ptime));
String timedate = DateFormat.format("dd/MM/yyyy hh:mm aa", calendar).toString();
holder.name.setText(nameh);
holder.title.setText(titlee);
holder.description.setText(descri);
holder.time.setText(timedate);
holder.like.setText(plike + " Likes");
holder.comments.setText(comm + " Comments");
setLikes(holder, ptime);
try {
Glide.with(context).load(dp).into(holder.picture);
} catch (Exception e) {
}
holder.image.setVisibility(View.VISIBLE);
try {
Glide.with(context).load(image).into(holder.image);
} catch (Exception e) {
}
holder.like.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(holder.itemView.getContext(), PostLikedByActivity.class);
intent.putExtra("pid", pid);
holder.itemView.getContext().startActivity(intent);
}
});
holder.likebtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final int plike = Integer.parseInt(modelPosts.get(position).getPlike());
mprocesslike = true;
final String postid = modelPosts.get(position).getPtime();
liekeref.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
if (mprocesslike) {
if (dataSnapshot.child(postid).hasChild(myuid)) {
postref.child(postid).child("plike").setValue("" + (plike - 1));
liekeref.child(postid).child(myuid).removeValue();
mprocesslike = false;
} else {
postref.child(postid).child("plike").setValue("" + (plike + 1));
liekeref.child(postid).child(myuid).setValue("Liked");
mprocesslike = false;
}
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
});
holder.more.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showMoreOptions(holder.more, uid, myuid, ptime, image);
}
});
holder.comment.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(context, PostDetailsActivity.class);
intent.putExtra("pid", ptime);
context.startActivity(intent);
}
});
}
private void showMoreOptions(ImageButton more, String uid, String myuid, final String pid, final String image) {
PopupMenu popupMenu = new PopupMenu(context, more, Gravity.END);
if (uid.equals(myuid)) {
popupMenu.getMenu().add(Menu.NONE, 0, 0, "DELETE");
}
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
if (item.getItemId() == 0) {
deltewithImage(pid, image);
}
return false;
}
});
popupMenu.show();
}
private void deltewithImage(final String pid, String image) {
final ProgressDialog pd = new ProgressDialog(context);
pd.setMessage("Deleting");
StorageReference picref = FirebaseStorage.getInstance().getReferenceFromUrl(image);
picref.delete().addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
Query query = FirebaseDatabase.getInstance().getReference("Posts").orderByChild("ptime").equalTo(pid);
query.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot dataSnapshot1 : dataSnapshot.getChildren()) {
dataSnapshot1.getRef().removeValue();
}
pd.dismiss();
Toast.makeText(context, "Deleted Successfully", Toast.LENGTH_LONG).show();
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
}
});
}
private void setLikes(final MyHolder holder, final String pid) {
liekeref.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
if (dataSnapshot.child(pid).hasChild(myuid)) {
holder.likebtn.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_liked, 0, 0, 0);
holder.likebtn.setText("Liked");
} else {
holder.likebtn.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_like, 0, 0, 0);
holder.likebtn.setText("Like");
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
@Override
public int getItemCount() {
return modelPosts.size();
}
class MyHolder extends RecyclerView.ViewHolder {
ImageView picture, image;
TextView name, time, title, description, like, comments;
ImageButton more;
Button likebtn, comment;
LinearLayout profile;
public MyHolder(@NonNull View itemView) {
super(itemView);
picture = itemView.findViewById(R.id.picturetv);
image = itemView.findViewById(R.id.pimagetv);
name = itemView.findViewById(R.id.unametv);
time = itemView.findViewById(R.id.utimetv);
more = itemView.findViewById(R.id.morebtn);
title = itemView.findViewById(R.id.ptitletv);
description = itemView.findViewById(R.id.descript);
like = itemView.findViewById(R.id.plikeb);
comments = itemView.findViewById(R.id.pcommentco);
likebtn = itemView.findViewById(R.id.like);
comment = itemView.findViewById(R.id.comment);
profile = itemView.findViewById(R.id.profilelayout);
}
}
}
Paso 2: trabajar con el archivo PostDetailsActivity.java. Agregue esta línea para ver todos los usuarios al hacer clic en Me gusta totales en PostdeatilsActivity.
like.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent(PostDetailsActivity.this, PostLikedByActivity.class);
intent.putExtra("pid",postId);
startActivity(intent);
}
});
A continuación se muestra el código del archivo PostDetailsActivity.java .
Java
package com.example.socialmediaapp;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.text.TextUtils;
import android.text.format.DateFormat;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.bumptech.glide.Glide;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.FirebaseAuth;
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.Query;
import com.google.firebase.database.ValueEventListener;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
public class PostDetailsActivity extends AppCompatActivity {
String hisuid, ptime, myuid, myname, myemail, mydp, uimage, postId, plike, hisdp, hisname;
ImageView picture, image;
TextView name, time, title, description, like, tcomment;
ImageButton more;
Button likebtn, share;
LinearLayout profile;
EditText comment;
ImageButton sendb;
RecyclerView recyclerView;
List<ModelComment> commentList;
AdapterComment adapterComment;
ImageView imagep;
boolean mlike = false;
ActionBar actionBar;
ProgressDialog progressDialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_post_details);
actionBar = getSupportActionBar();
actionBar.setTitle("Post Details");
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setDisplayShowHomeEnabled(true);
postId = getIntent().getStringExtra("pid");
recyclerView = findViewById(R.id.recyclecomment);
picture = findViewById(R.id.pictureco);
image = findViewById(R.id.pimagetvco);
name = findViewById(R.id.unameco);
time = findViewById(R.id.utimeco);
more = findViewById(R.id.morebtn);
title = findViewById(R.id.ptitleco);
myemail = FirebaseAuth.getInstance().getCurrentUser().getEmail();
myuid = FirebaseAuth.getInstance().getCurrentUser().getUid();
description = findViewById(R.id.descriptco);
tcomment = findViewById(R.id.pcommenttv);
like = findViewById(R.id.plikebco);
likebtn = findViewById(R.id.like);
comment = findViewById(R.id.typecommet);
sendb = findViewById(R.id.sendcomment);
imagep = findViewById(R.id.commentimge);
share = findViewById(R.id.share);
profile = findViewById(R.id.profilelayout);
progressDialog = new ProgressDialog(this);
loadPostInfo();
loadUserInfo();
setLikes();
actionBar.setSubtitle("SignedInAs:" + myemail);
loadComments();
sendb.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
postComment();
}
});
likebtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
likepost();
}
});
like.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(PostDetailsActivity.this, PostLikedByActivity.class);
intent.putExtra("pid", postId);
startActivity(intent);
}
});
}
private void loadComments() {
LinearLayoutManager layoutManager = new LinearLayoutManager(getApplicationContext());
recyclerView.setLayoutManager(layoutManager);
commentList = new ArrayList<>();
DatabaseReference reference = FirebaseDatabase.getInstance().getReference("Posts").child(postId).child("Comments");
reference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
commentList.clear();
for (DataSnapshot dataSnapshot1 : dataSnapshot.getChildren()) {
ModelComment modelComment = dataSnapshot1.getValue(ModelComment.class);
commentList.add(modelComment);
adapterComment = new AdapterComment(getApplicationContext(), commentList, myuid, postId);
recyclerView.setAdapter(adapterComment);
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
private void setLikes() {
final DatabaseReference liekeref = FirebaseDatabase.getInstance().getReference().child("Likes");
liekeref.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
if (dataSnapshot.child(postId).hasChild(myuid)) {
likebtn.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_liked, 0, 0, 0);
likebtn.setText("Liked");
} else {
likebtn.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_like, 0, 0, 0);
likebtn.setText("Like");
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
private void likepost() {
mlike = true;
final DatabaseReference liekeref = FirebaseDatabase.getInstance().getReference().child("Likes");
final DatabaseReference postref = FirebaseDatabase.getInstance().getReference().child("Posts");
liekeref.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
if (mlike) {
if (dataSnapshot.child(postId).hasChild(myuid)) {
postref.child(postId).child("plike").setValue("" + (Integer.parseInt(plike) - 1));
liekeref.child(postId).child(myuid).removeValue();
mlike = false;
} else {
postref.child(postId).child("plike").setValue("" + (Integer.parseInt(plike) + 1));
liekeref.child(postId).child(myuid).setValue("Liked");
mlike = false;
}
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
private void postComment() {
progressDialog.setMessage("Adding Comment");
final String commentss = comment.getText().toString().trim();
if (TextUtils.isEmpty(commentss)) {
Toast.makeText(PostDetailsActivity.this, "Empty comment", Toast.LENGTH_LONG).show();
return;
}
progressDialog.show();
String timestamp = String.valueOf(System.currentTimeMillis());
DatabaseReference datarf = FirebaseDatabase.getInstance().getReference("Posts").child(postId).child("Comments");
HashMap<String, Object> hashMap = new HashMap<>();
hashMap.put("cId", timestamp);
hashMap.put("comment", commentss);
hashMap.put("ptime", timestamp);
hashMap.put("uid", myuid);
hashMap.put("uemail", myemail);
hashMap.put("udp", mydp);
hashMap.put("uname", myname);
datarf.child(timestamp).setValue(hashMap).addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
progressDialog.dismiss();
Toast.makeText(PostDetailsActivity.this, "Added", Toast.LENGTH_LONG).show();
comment.setText("");
updatecommetcount();
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
progressDialog.dismiss();
Toast.makeText(PostDetailsActivity.this, "Failed", Toast.LENGTH_LONG).show();
}
});
}
boolean count = false;
private void updatecommetcount() {
count = true;
final DatabaseReference reference = FirebaseDatabase.getInstance().getReference("Posts").child(postId);
reference.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
if (count) {
String comments = "" + dataSnapshot.child("pcomments").getValue();
int newcomment = Integer.parseInt(comments) + 1;
reference.child("pcomments").setValue("" + newcomment);
count = false;
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
private void loadUserInfo() {
Query myref = FirebaseDatabase.getInstance().getReference("Users");
myref.orderByChild("uid").equalTo(myuid).addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot dataSnapshot1 : dataSnapshot.getChildren()) {
myname = dataSnapshot1.child("name").getValue().toString();
mydp = dataSnapshot1.child("image").getValue().toString();
try {
Glide.with(PostDetailsActivity.this).load(mydp).into(imagep);
} catch (Exception e) {
}
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
private void loadPostInfo() {
DatabaseReference databaseReference = FirebaseDatabase.getInstance().getReference("Posts");
Query query = databaseReference.orderByChild("ptime").equalTo(postId);
query.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot dataSnapshot1 : dataSnapshot.getChildren()) {
String ptitle = dataSnapshot1.child("title").getValue().toString();
String descriptions = dataSnapshot1.child("description").getValue().toString();
uimage = dataSnapshot1.child("uimage").getValue().toString();
hisdp = dataSnapshot1.child("udp").getValue().toString();
// hisuid = dataSnapshot1.child("uid").getValue().toString();
String uemail = dataSnapshot1.child("uemail").getValue().toString();
hisname = dataSnapshot1.child("uname").getValue().toString();
ptime = dataSnapshot1.child("ptime").getValue().toString();
plike = dataSnapshot1.child("plike").getValue().toString();
String commentcount = dataSnapshot1.child("pcomments").getValue().toString();
Calendar calendar = Calendar.getInstance(Locale.ENGLISH);
calendar.setTimeInMillis(Long.parseLong(ptime));
String timedate = DateFormat.format("dd/MM/yyyy hh:mm aa", calendar).toString();
name.setText(hisname);
title.setText(ptitle);
description.setText(descriptions);
like.setText(plike + " Likes");
time.setText(timedate);
tcomment.setText(commentcount + " Comments");
if (uimage.equals("noImage")) {
image.setVisibility(View.GONE);
} else {
image.setVisibility(View.VISIBLE);
try {
Glide.with(PostDetailsActivity.this).load(uimage).into(image);
} catch (Exception e) {
}
}
try {
Glide.with(PostDetailsActivity.this).load(hisdp).into(picture);
} catch (Exception e) {
}
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
@Override
public boolean onSupportNavigateUp() {
onBackPressed();
return super.onSupportNavigateUp();
}
}
Paso 3: trabajar con la actividad PostLikedByActivity
Trabajar con el archivo activity_postlikedby.xml
Vaya a la aplicación > res > diseño > actividad_postgustadopor.xml y agregue el siguiente código a ese archivo. A continuación se muestra el código para el archivo activity_postlikedby.xml .
XML
<?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" tools:context=".PostLikedByActivity"> <androidx.recyclerview.widget.RecyclerView android:id="@+id/likerecycle" android:layout_width="match_parent" android:layout_height="match_parent" app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" tools:listitem="@layout/row_users" /> </RelativeLayout>
Trabajar con el archivo PostLikedByActivity.java
Vaya al archivo PostLikedByActivity.java y consulte el siguiente código. A continuación se muestra el código para el archivo PostLikedByActivity.java .
Java
package com.example.socialmediaapp;
import android.content.Intent;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.RecyclerView;
import com.google.firebase.auth.FirebaseAuth;
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;
public class PostLikedByActivity extends AppCompatActivity {
RecyclerView recyclerView;
String postId;
List<ModelUsers> list;
AdapterUsers adapterUsers;
FirebaseAuth firebaseAuth;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_post_liked_by);
ActionBar actionBar = getSupportActionBar();
actionBar.setTitle("Post Liked By");
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setDisplayShowHomeEnabled(true);
firebaseAuth = FirebaseAuth.getInstance();
actionBar.setSubtitle(firebaseAuth.getCurrentUser().getEmail());
recyclerView = findViewById(R.id.likerecycle);
Intent intent = getIntent();
postId = intent.getStringExtra("pid");
list = new ArrayList<>();
DatabaseReference reference = FirebaseDatabase.getInstance().getReference("Likes");
reference.child(postId).addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
list.clear();
for (DataSnapshot dataSnapshot1 : dataSnapshot.getChildren()) {
String hisUid = "" + dataSnapshot1.getRef().getKey();
getUsers(hisUid);
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
private void getUsers(String hisUid) {
DatabaseReference databaseReference = FirebaseDatabase.getInstance().getReference("Users");
databaseReference.orderByChild("uid").equalTo(hisUid).addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot ds : dataSnapshot.getChildren()) {
ModelUsers model = ds.getValue(ModelUsers.class);
list.add(model);
}
adapterUsers = new AdapterUsers(PostLikedByActivity.this, list);
recyclerView.setAdapter(adapterUsers);
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
@Override
public boolean onSupportNavigateUp() {
onBackPressed();
return super.onSupportNavigateUp();
}
}
Producción:
Para ver todos los archivos dibujables utilizados en este artículo, consulte este enlace: https://drive.google.com/drive/folders/1M_knOH_ugCuwSP5nkYzeD4dRp-Honzbe?usp=sharing
A continuación se muestra la estructura de archivos después de realizar estas operaciones:
