java - 如何从另一个类获取字符串？ - 安卓

Question

我有个问题要问你们。我有两个类:

TelaCadastroRestauranteDAO.java - 它不会扩展 Activity

和

TelaCadastroRestaurante.java - 它确实扩展了 Activity

在我的第一个类TelaCadastroRestauranteDAO.java中，我有一个字符串restauranteParseIdString，它有一个值。我想将此字符串传递给另一个类 TelaCadastroRestaurante.java。

我无法使用 Intent 做到这一点，因为我的 ..DAO 类不扩展 Activity，所以我无法导入 Intent(至少，我认为这是问题所在)

<小时/>

public class TelaCadastroRestauranteDAO {

private static ParseObject restauranteParse;
private static String restauranteParseIdString = restauranteParse.getObjectId();
private static ProgressDialog dialog;
private static AlertDialog.Builder builderaction;

... 

}

和

public class TelaCadastroRestaurante extends Activity {

private Restaurante rest;
private Button proximoButton;
private EditText nomeRestauranteEditText, emailRestauranteEditText, telefoneRestauranteEditText;
private String nomeRestauranteString, emailRestauranteString, telefoneRestauranteString, idRestaurante;
private String voceTemCertezaCadastrarRestaurante = "Você tem certeza que deseja cadastrar o restaurante: ";
private Context contexThisClass = TelaCadastroRestaurante.this;

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

    // i want get the string right here

    if(checkwifi()){
        setUpComponents();
        dealButtons();
    }
}
}

Answer 1

因为 restauranteParseIdString 是 static 字段，因此要在其他类中访问它，请使用类名，例如:

String strDAO=TelaCadastroRestauranteDAO.restauranteParseIdString;

并将 restauranteParseIdString 声明为 public 以在其他类中访问:

public static String restauranteParseIdString = restauranteParse.getObjectId();