问题

我是Android的新手，我有一个用户爱好的ArrayList。我想将这些值存储到我的User类中，但我不知道如何存储。

我的Intent值：

comp_phoneNumber = getIntent().getStringExtra("userPhone");
user_FirstName = getIntent().getStringExtra("user_FirstName");
user_Gender = getIntent().getStringExtra("user_Gender");
user_Birthdate = getIntent().getStringExtra("user_Birthdate");

我的Getter-Setter类：

public class UserHelperClass {

    String comp_phoneNumber, user_FirstName, user_Gender, user_Birthdate;

    UserHelperClass() {
    }

    public UserHelperClass(String comp_phoneNumber, String user_FirstName, String user_Gender, String user_Birthdate) {
        this.comp_phoneNumber = comp_phoneNumber;
        this.user_FirstName = user_FirstName;
        this.user_Gender = user_Gender;
        this.user_Birthdate = user_Birthdate;
    }

    public String getComp_phoneNumber() {
        return comp_phoneNumber;
    }

    public void setComp_phoneNumber(String comp_phoneNumber) {
        this.comp_phoneNumber = comp_phoneNumber;
    }

    public String getUser_FirstName() {
        return user_FirstName;
    }

    public void setUser_FirstName(String user_FirstName) {
        this.user_FirstName = user_FirstName;
    }

    public String getUser_Gender() {
        return user_Gender;
    }

    public void setUser_Gender(String user_Gender) {
        this.user_Gender = user_Gender;
    }

    public String getUser_Birthdate() {
        return user_Birthdate;
    }

    public void setUser_Birthdate(String user_Birthdate) {
        this.user_Birthdate = user_Birthdate;
    }

}

在我的Last_Activity中，我使用以下代码存储这些Intent值。

public void storeNewUserData() {
    rootNode = FirebaseDatabase.getInstance();
    reference = rootNode.getReference("Users");

    UserHelperClass addNewUser = new UserHelperClass(comp_phoneNumber, user_FirstName, user_Gender, user_Birthdate);
    reference.child(comp_phoneNumber).setValue(addNewUser);
}

我想将我的Hobby String ArrayList值与这些值一起存储。如何存储呢？

    comp_phoneNumber = getIntent().getStringExtra("userPhone");
    user_FirstName = getIntent().getStringExtra("user_FirstName");
    user_Gender = getIntent().getStringExtra("user_Gender");
    user_Birthdate = getIntent().getStringExtra("user_Birthdate");

public class UserHelperClass {

String comp_phoneNumber, user_FirstName, user_Gender, user_Birthdate;

UserHelperClass() {
}

public UserHelperClass(String comp_phoneNumber, String user_FirstName, String user_Gender, String user_Birthdate) {
    this.comp_phoneNumber = comp_phoneNumber;
    this.user_FirstName = user_FirstName;
    this.user_Gender = user_Gender;
    this.user_Birthdate = user_Birthdate;
}

public String getComp_phoneNumber() {
    return comp_phoneNumber;
}

public void setComp_phoneNumber(String comp_phoneNumber) {
    this.comp_phoneNumber = comp_phoneNumber;
}

public String getUser_FirstName() {
    return user_FirstName;
}

public void setUser_FirstName(String user_FirstName) {
    this.user_FirstName = user_FirstName;
}

public String getUser_Gender() {
    return user_Gender;
}

public void setUser_Gender(String user_Gender) {
    this.user_Gender = user_Gender;
}

public String getUser_Birthdate() {
    return user_Birthdate;
}

public void setUser_Birthdate(String user_Birthdate) {
    this.user_Birthdate = user_Birthdate;
}

}

public void storeNewUserData() {
    rootNode = FirebaseDatabase.getInstance();
    reference = rootNode.getReference("Users");

    UserHelperClass addNewUser = new UserHelperClass(comp_phoneNumber, user_FirstName, user_Gender, user_Birthdate);
    reference.child(comp_phoneNumber).setValue(addNewUser);
}

答案1

得分: 0

可以直接使用 HashMap 来存储值，一旦获取到值，无需先存储在类中或跳转到另一个活动中。除非有必要这样做。

DatabaseReference ref = FirebaseDatabase.getInstance().getReference().child("Users");

HashMap<String, Object> userMap = new HashMap<>();
userMap.put("comp_phoneNumber", addNewUser.getComp_phoneNumber());
userMap.put("第二个字段", value);
userMap.put("第三个字段", value);
userMap.put("第四个字段", value);
ref.child(comp_phoneNumber).updateChildren(userMap).addOnCompleteListener(new OnCompleteListener<Void>() {
    @Override
    public void onComplete(@NonNull Task<Void> task) {

        if(task.isSuccessful()){

            Toast.makeText(getActivity(), "用户已成功添加", Toast.LENGTH_SHORT).show();
            
        }

        else {
            Toast.makeText(getContext(), "网络错误", Toast.LENGTH_SHORT).show();
        }
    }
});

像这样，您应该能够添加这些详细信息。虽然我对您关于爱好的发言感到困惑？

<details>
<summary>英文:</summary>

You can simply use a HashMap to store the values as soon as you get them without needing to store them in a class first or going to another activity. Unless that is necessary

DatabaseReference ref = FirebaseDatabase.getInstance().getReference().child("Users");

HashMap<String, Object> userMap = new HashMap<>();
userMap. put("comp_phoneNumber", addNewUser.getComp_phoneNumber());
userMap. put("2nd field", value);
userMap. put("3rd field", value);
userMap. put("4th field", value);
ref.child(comp_phoneNumber).updateChildren(userMap).addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {

    if(task.isSuccessful()){

        Toast.makeText(getActivity(), "User added successfully", Toast.LENGTH_SHORT).show();
        
    }

    else {
        Toast.makeText(getContext(), "Network Error", Toast.LENGTH_SHORT).show();
    }
}

});

Like this you should be able to add the details. Although I am confused as to what was that you wanted to say about Hobbies?

</details>