我想在 Android Studio 的 Retrofit 中将温度值从单位转换为英制

Question

我在 Retrofit 中遇到问题。我想将以单位为单位的温度值转换为英制。

意味着我从天气应用程序的 API 键获取数据，当我在 Android 中使用运行应用程序时，它会给我这样的温度值（285,200 等）。这是错误的，因为这个温度不正确。现在我们的伊斯兰堡（巴基斯坦）城市温度是 15，它给了我 285、200 等，但是 JSON 转换器给了我我所在城市的准确温度，但是 Android Studio 没有生成它。

我想要 API 给我的城市的确切温度，但是 android 工作室生成了他自己的值，这是不正确的。

主要ActivityClass

    package com.deitel.apiretrofitweatherapp;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.graphics.ImageFormat;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import java.text.SimpleDateFormat;
import java.util.Calendar;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;

public class MainActivity extends AppCompatActivity {
    public static String BaseUrl = "http://api.openweathermap.org/";
    public static String AppId = "90ebdc57172a838d0fce0abbc044df8e";
    public static String lat = "33.69";
    public static String lon = "73.06";


    private TextView textView_country,textView_city,textView_temp,/*textView_temp_min,textView_tem_max,*/textView_pressure,textView_humidity,textview_date;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textView_country=findViewById(R.id.textView_country);
        textView_city=findViewById(R.id.textView_city);
        textView_temp=findViewById(R.id.text_temp);
        textView_pressure=findViewById(R.id.textView_pressure);
       /* textView_tem_max=findViewById(R.id.textView_temp_max);
        textView_temp_min=findViewById(R.id.textView_temp_min);*/
        textView_humidity=findViewById(R.id.textView_humidity);
        textview_date=findViewById(R.id.textView_date);
        getCurrentData();

    }
    void getCurrentData()
    {
        Retrofit retrofit=new Retrofit.Builder()
                .baseUrl(BaseUrl)
                .addConverterFactory(GsonConverterFactory.create())
                .build();
        WeatherService weatherService=retrofit.create(WeatherService.class);
        Call<WeatherResponse> call=weatherService.getCurrentWeatherData(lat,lon,AppId);
        call.enqueue(new Callback() {
            @Override
            public void onResponse(Call call, Response response) {
                if (response.code()==200)
                {
                    WeatherResponse weatherResponse= (WeatherResponse) response.body();
                    assert weatherResponse != null;
                    Calendar calendar = Calendar.getInstance();
                    SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EEEE-dd-MM");
                    String formatedate = simpleDateFormat.format(calendar.getTime());
                   /* String stringbuilder= "Country : " +
                            weatherResponse.sys.country +
                            "\n" +
                            "City : " +weatherResponse.name +
                            "\n" +
                            "Tempreture : " + weatherResponse.main.temp +
                            "\n" +
                            "Tempreture(Min) : " +
                            weatherResponse.main.temp_min +
                            "\n" +
                            "Tempreture(Max) : " +
                            weatherResponse.main.temp_max +
                            "\n" +
                            "Humidity : " +
                            weatherResponse.main.humidity +
                            "\n" +
                            "Pressure : " +
                            weatherResponse.main.pressure;*/

                             String Country=weatherResponse.sys.country;
                             String City=weatherResponse.name;
                             String Temp= String.valueOf(weatherResponse.main.temp);
                            double temp_int = Double.parseDouble(Temp);
                            double centi_int = (temp_int -32 )/1.8000;
                            centi_int = Math.round(centi_int);
                            int i = (int) centi_int;

                             /*String Temp_max= String.valueOf(weatherResponse.main.temp_max);
                             String Temp_min= String.valueOf(weatherResponse.main.temp_min);*/
                             String Pressure= String.valueOf(weatherResponse.main.pressure);
                             String Humidity=String.valueOf(weatherResponse.main.humidity);
                             textView_country.setText(Country);
                             textView_city.setText(City);
                             textView_temp.setText(String.valueOf(i));
                             /*textView_tem_max.setText(Temp_max);
                             textView_temp_min.setText(Temp_min);*/
                             textView_pressure.setText(Pressure);
                             textView_humidity.setText(Humidity);
                             textview_date.setText(formatedate);


                }
            }

            @Override
            public void onFailure(Call call, Throwable t) {
                textView_country.setText(t.getMessage());
                textView_city.setText(t.getMessage());
                textView_temp.setText(t.getMessage());
                /*textView_tem_max.setText(t.getMessage());
                textView_temp_min.setText(t.getMessage());*/
                textView_pressure.setText(t.getMessage());
                textView_humidity.setText(t.getMessage());
                textview_date.setText(t.getMessage());

            }
        });
    }

}

WebResponse Class

    package com.deitel.apiretrofitweatherapp;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
import java.util.List;
public class WeatherResponse {

    @SerializedName("coord")
    @Expose
    public Coord coord;
    @SerializedName("weather")
    @Expose
    public List<Weather> weather = null;
    @SerializedName("base")
    @Expose
    public String base;
    @SerializedName("main")
    @Expose
    public Main main;
    @SerializedName("visibility")
    @Expose
    public Integer visibility;
    @SerializedName("wind")
    @Expose
    public Wind wind;
    @SerializedName("clouds")
    @Expose
    public Clouds clouds;
    @SerializedName("dt")
    @Expose
    public Integer dt;
    @SerializedName("sys")
    @Expose
    public Sys sys;
    @SerializedName("timezone")
    @Expose
    public Integer timezone;
    @SerializedName("id")
    @Expose
    public Integer id;
    @SerializedName("name")
    @Expose
    public String name;
    @SerializedName("cod")
    @Expose
    public Integer cod;

}
class Weather {

    @SerializedName("id")
    @Expose
    public Integer id;
    @SerializedName("main")
    @Expose
    public String main;
    @SerializedName("description")
    @Expose
    public String description;
    @SerializedName("icon")
    @Expose
    public String icon;

}
class Clouds {
    @SerializedName("all")
    public float all;
}

class Rain {
    @SerializedName("3h")
    public float h3;
}

class Wind {

    @SerializedName("speed")
    @Expose
    public Double speed;
    @SerializedName("deg")
    @Expose
    public Integer deg;

}

 class Main {

    @SerializedName("temp")
    @Expose
    public double temp;
    /*@SerializedName("feels_like")
    @Expose
    public float feelsLike;
    @SerializedName("temp_min")
    @Expose
    public float tempMin;
    @SerializedName("temp_max")
    @Expose
    public float tempMax;*/
    @SerializedName("pressure")
    @Expose
    public float pressure;
    @SerializedName("humidity")
    @Expose
    public float humidity;

}


class Sys {

    @SerializedName("type")
    @Expose
    public Integer type;
    @SerializedName("id")
    @Expose
    public Integer id;
    @SerializedName("country")
    @Expose
    public String country;
    @SerializedName("sunrise")
    @Expose
    public Integer sunrise;
    @SerializedName("sunset")
    @Expose
    public Integer sunset;

}
class Coord {
    @SerializedName("lon")
    public float lon;
    @SerializedName("lat")
    public float lat;
}

网络服务接口Class

    package com.deitel.apiretrofitweatherapp;

import retrofit2.Call;
import retrofit2.http.GET;
import retrofit2.http.Query;

public interface WeatherService {
    @GET("data/2.5/weather?")
    Call <WeatherResponse>getCurrentWeatherData(@Query("lat") String lat, @Query("lon") String lon, @Query("APPID") String app_id);
}

Answer 1

你能试试这个吗？

 JSONObject tempObject = arrWeatherList.getJSONObject(i).getJSONObject("temp");

 String temperature = changeTemp(tempObject.get("day").toString());

 private String changeTemp(String x) {
    Double celsius = Double.parseDouble(x) - 273.0;
    Integer i = celsius.intValue();
    return String.valueOf(i);
}

我想在 Android Studio 的 Retrofit 中将温度值从单位转换为英制

I want to convert temperature value from unit to imperial in Retrofit in Android Studio

java

android

retrofit