Java 共享优先权未正确保存

嗨，当我保存信息时，我在“姓氏”中写的东西复制到“名字字段”，无论我在“名字”中写什么，总是“舞者单选按钮”保存。 我想问题在于我的活动我不知道我写了什么=/

这是一项活动：

public class user_profile extends AppCompatActivity {

    private user_sample userSample = new user_sample();
    user_sharedpref_manager user_sharedpref_manager;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_user_profile);

        user_sharedpref_manager = new user_sharedpref_manager(this);

        userSample = user_sharedpref_manager.get_user();

        EditText profile_firstname = findViewById(R.id.profile_firstname);
        EditText profile_lastname = findViewById(R.id.profile_lastname);
        RadioButton profile_gamer_button = findViewById(R.id.profile_gamer_radio_button);
        RadioButton profile_dancer_button = findViewById(R.id.profile_dancer_radio_button);
        RadioButton profile_soccer_player_button = findViewById(R.id.profile_soccer_player_radio_button);
        Button profile_save_button = findViewById(R.id.profile_save_button);

        profile_firstname.setText(userSample.getFirstname());
        profile_lastname.setText(userSample.getLastname());


        profile_firstname.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

            }

            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                userSample.setFirstname(charSequence.toString());
            }

            @Override
            public void afterTextChanged(Editable editable) {

            }
        });


        profile_lastname.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

            }

            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                userSample.setLastname(charSequence.toString());
            }

            @Override
            public void afterTextChanged(Editable editable) {

            }
        });


        int career = userSample.getCareer();

        if (career == user_sample.gamer) {
            profile_gamer_button.setChecked(true);

        } else if (career == user_sample.dancer) {
            profile_dancer_button.setChecked(true);

        } else if (career == user_sample.soccer_player) {
            profile_soccer_player_button.setChecked(true);
        }

        profile_gamer_button.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                userSample.setCareer(user_sample.gamer);
            }


        });

        profile_dancer_button.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                userSample.setCareer(user_sample.dancer);
            }
        });

        profile_soccer_player_button.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                userSample.setCareer(user_sample.soccer_player);
            }
        });

        profile_save_button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                user_sharedpref_manager.save_user(userSample);
                Toast.makeText(user_profile.this, "clicked", Toast.LENGTH_LONG).show();
            }
        });
    }


}

共享首选项类：

public class user_sharedpref_manager {

    private static final String PROFILE_SHARED_PREF = "profile_Shared_pref";

    private static final String PROFILE_FIRST_NAME = "profile_first_name";
    private static final String PROFILE_LAST_NAME = "profile_first_name";
    private static final String CAREER = "career";

    private SharedPreferences sharedPreferences;

    public user_sharedpref_manager(Context context) {
        sharedPreferences = context.getSharedPreferences(PROFILE_SHARED_PREF, Context.MODE_PRIVATE);
    }

    public void save_user(user_sample userSample) {
        if (userSample != null) {
            SharedPreferences.Editor editor = sharedPreferences.edit();

            editor.putString(PROFILE_FIRST_NAME, userSample.getFirstname());
            editor.putString(PROFILE_LAST_NAME, userSample.getLastname());
            editor.putInt(CAREER, userSample.getCareer());
            editor.apply();
        }

    }


    public user_sample get_user() {
        user_sample userSample = new user_sample();
        userSample.setFirstname(sharedPreferences.getString(PROFILE_FIRST_NAME, ""));
        userSample.setLastname(sharedPreferences.getString(PROFILE_LAST_NAME, ""));
        userSample.setCareer(sharedPreferences.getInt(CAREER, user_sample.gamer));
        return userSample;
    }
}

它是保存的共享首选项：

<map>
<int name="career" value="1" />
<string name="profile_first_name">gftfgtdrrdrt</string>

您的两个键都有值

“profile\u first\u name”

。我猜

PROFILE\u LAST\u NAME

应该等于

“PROFILE\u LAST\u NAME”

---

您的两个键都有值

“profile\u first\u name”

。我猜

PROFILE\u LAST\u NAME

应该等于

“PROFILE\u LAST\u NAME”

是的，谢谢……第一个问题解决了，只剩下单选按钮了……我认为我检查它们的方式是错误的，我在阅读代码时遇到了问题，因为它没有遵循Java编码准则。但是你能发布

user\u sample

类吗？发布了…很抱歉编码不好=）你能给我一些例子吗？这些类的格式是错误的？类应该用标题大小写，所以

UserSample

。变量应该是驼峰大小写，所以

userSample

。你在某些地方也有，但不一致。常量/最终静态变量名称应使用所有大写字母，并用下划线分隔单词。查阅Java语法指南以了解更多详细信息。您还应该使用

int

而不是

byte

作为常量。是的，谢谢您忽略了这一点……第一个问题解决了，只剩下单选按钮……我想我检查它们的方式是错误的。我在阅读代码时遇到了问题，因为它没有遵循Java编码指南。但是你能发布

user\u sample

类吗？发布了…很抱歉编码不好=）你能给我一些例子吗？这些类的格式是错误的？类应该用标题大小写，所以

UserSample

。变量应该是驼峰大小写，所以

userSample

。你在某些地方也有，但不一致。常量/最终静态变量名称应使用所有大写字母，并用下划线分隔单词。有关更多详细信息，请查阅Java语法指南。对于常量，还应使用

int

not

byte

。

public class user_sample {

private String firstname ="";
private String lastname="";
public static final int gamer=0;
public static final int dancer=1;
public static final int soccer_player=2;
private  int career=gamer;

public String getFirstname() {
    return firstname;
}

public void setFirstname(String firstname) {
    this.firstname = firstname;
}

public String getLastname() {
    return lastname;
}

public void setLastname(String lastname) {
    this.lastname = lastname;
}

public int getCareer() {
    return career;
}

public void setCareer(int career) {
    this.career = career;
}

private static final String PROFILE_FIRST_NAME = "profile_first_name";
private static final String PROFILE_LAST_NAME = "profile_first_name";