Pfthb

public static Task<QuerySnapshot> getUserByEmail() 
 String email = "mireille@sombux.com";
 return UserHelper.getUsersCollection()
 .whereEqualTo("email", email)
 .get();
 

public abstract class User {
 private long id;
 private String email;
 private Date lastLogin;
 private Date birthday;
 private String country;
 private String codcountry;
 private String formation;
 private String drink;
 private String about;

 public User() 

 public long getId() 
 return id;
 

 public void setId(long id) 
 this.id = id;
 

 public String getEmail() 
 return email;
 

 public void setEmail(String email) 
 this.email = email;
 

 public Date getLastLogin() 
 return lastLogin;
 

 public void setLastLogin(Date lastLogin) 
 this.lastLogin = lastLogin;
 

 public Date getBirthday() 
 return birthday;
 

 public void setBirthday(Date birthday) 
 this.birthday = birthday;
 

 public String getCountry() 
 return country;
 

 public void setCountry(String country) 
 this.country = country;
 

 public String getCodcountry() 
 return codcountry;
 

 public void setCodcountry(String codcountry) 
 this.codcountry = codcountry;
 

 public String getFormation() 
 return formation;
 

 public void setFormation(String formation) 
 this.formation = formation;
 

 public String getDrink() 
 return drink;
 

 public void setDrink(String drink) 
 this.drink = drink;
 

 public String getAbout() 
 return about;
 

 public void setAbout(String about) 
 this.about = about;
 

UserHelper.getUserByEmail().addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() 
 @Override
 public void onComplete(@NonNull Task<QuerySnapshot> task) 
 if (task.isSuccessful()) 
 for (DocumentSnapshot document : task.getResult()) 
 final User remoteUser = document.toObject(User.class);
 if (remoteUser != null) 
 Toast.makeText(context, "Find", Toast.LENGTH_SHORT).show();
 // do something
 
 return;
 
 Toast.makeText(context, "Not find", Toast.LENGTH_SHORT).show();
 
 
 );