[Android] Yahoo Weather API를 이용하여 날씨정보 조회

Yahoo Weather API를 이용하여 현재 위치의 날씨 정보를 조회하는 방법에 대해 알아보겠습니다.

개발 환경

• Android Studio
• Java

설정

• build.gradle -> dependencies 추가

implementation 'zh.wang.android:yweathergetter4a:1.3.0'

• manifest -> permission 추가

<!-- 인터넷 사용 권한 -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />

<!-- GPS 사용 권한 -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

코드 작성

Activity 또는 Fragment에 YahooWeatherInfoListener 인터페이스를 implements 하면 gotWeatherInfo 함수를 오버라이딩(Override)을 하게 됩니다.

public class WeatherActivity extends Activity implements YahooWeatherInfoListener {

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

  @Override
  public void gotWeatherInfo(WeatherInfo weatherInfo, YahooWeather.ErrorType errorType) {
  }
}

이제 날씨 정보를 불러오기 위해 다음의 함수 중 상황에 맞게 호출합니다.

// 장소 이름으로 쿼리
public void queryYahooWeatherByPlaceName(final Context context, final String cityAreaOrLocation, final YahooWeatherInfoListener result)

// 위도와 경도로 쿼리
public void queryYahooWeatherByLatLon(final Context context, final String lat, final String lon, final YahooWeatherInfoListener result)

// GPS를 사용하여 현재 위치로 쿼리
public void queryYahooWeatherByGPS(final Context context, final YahooWeatherInfoListener result)

이번 프로젝트에는 GPS를 사용하여 현재 위치의 날씨 정보를 얻었습니다. 쿼리 함수를 호출하면 오버라이딩한 gotWeatherInfo 함수를 통해 날씨 정보를 얻을 수 있습니다.

YahooWeather yahooWeather = YahooWeather.getInstance();

yahooWeather.setNeedDownloadIcons(true);
yahooWeather.setUnit(YahooWeather.UNIT.CELSIUS);
yahooWeather.setSearchMode(YahooWeather.SEARCH_MODE.GPS);
yahooWeather.queryYahooWeatherByGPS(getApplicationContext(), this);

날씨 정보를 한 번만 불러오는 것이 아니라 1분마다 얻기 위해 Timer를 사용하였습니다. Timer를 사용하기 위해 위의 코드를 함수로 만들었습니다.

Timer timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
    @Override
    public void run() {
        new Handler(Looper.getMainLooper()).post(new Runnable() {
            @Override
            public void run() {
                searchByGPS();
            }
        });
    }
}, 0, 1000 * 60);

public void searchByGPS() {
  yahooWeather.setNeedDownloadIcons(true);
  yahooWeather.setUnit(YahooWeather.UNIT.CELSIUS);
  yahooWeather.setSearchMode(YahooWeather.SEARCH_MODE.GPS);
  yahooWeather.queryYahooWeatherByGPS(getApplicationContext(), this);
}

이제 1분 마다 날씨 정보를 불러올 수 있게 되었습니다. 현재 위치, 시간, 온도, 습도, 대기압, 풍향, 풍속 등의 다양한 날씨 정보를 화면에 표출하여 완성하였습니다.

@Override
  public void gotWeatherInfo(WeatherInfo weatherInfo, YahooWeather.ErrorType errorType) {
      if (weatherInfo != null) {
          datetimeText.setText(dateFormat.format(new Date()));
          logitudeText.setText(weatherInfo.getAddress().getLongitude() + "");
          latitudeText.setText(weatherInfo.getAddress().getLatitude() + "");
          addressText.setText(weatherInfo.getAddress().getAddressLine(0));
          weatherText.setText(weatherInfo.getCurrentText());
          temperatureText.setText(weatherInfo.getCurrentTemp() + " ºC");
          humidityText.setText(weatherInfo.getAtmosphereHumidity() + " %");
          pressureText.setText(weatherInfo.getAtmospherePressure());
          windDirectionText.setText(weatherInfo.getWindDirection() + "˚");
          windSpeedText.setText(weatherInfo.getWindSpeed() + " m/s");
          windChillText.setText(weatherInfo.getWindChill() + " °F");
          visibilityText.setText(weatherInfo.getAtmosphereVisibility());
      }
  }

전체 코드

// WeatherActivity.java

import android.os.Handler;
import android.os.Looper;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

import butterknife.BindView;
import butterknife.ButterKnife;
import me.hgko.networkinfo.R;
import zh.wang.android.yweathergetter4a.WeatherInfo;
import zh.wang.android.yweathergetter4a.YahooWeather;
import zh.wang.android.yweathergetter4a.YahooWeatherInfoListener;

public class WeatherActivity extends AppCompatActivity implements YahooWeatherInfoListener {

    private final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss");

    @BindView(R.id.logitudeText)
    TextView logitudeText;
    @BindView(R.id.latitudeText)
    TextView latitudeText;
    @BindView(R.id.datetimeText)
    TextView datetimeText;
    @BindView(R.id.addressText)
    TextView addressText;
    @BindView(R.id.weatherText)
    TextView weatherText;
    @BindView(R.id.temperatureText)
    TextView temperatureText;
    @BindView(R.id.humidityText)
    TextView humidityText;
    @BindView(R.id.pressureText)
    TextView pressureText;
    @BindView(R.id.windDirectionText)
    TextView windDirectionText;
    @BindView(R.id.windSpeedText)
    TextView windSpeedText;
    @BindView(R.id.windChillText)
    TextView windChillText;
    @BindView(R.id.visibilityText)
    TextView visibilityText;

    private YahooWeather yahooWeather;

    private Timer timer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_weather);
        ButterKnife.bind(this);

        yahooWeather = YahooWeather.getInstance();

        timer = new Timer();
        timer.scheduleAtFixedRate(new TimerTask() {
            @Override
            public void run() {
                new Handler(Looper.getMainLooper()).post(new Runnable() {
                    @Override
                    public void run() {
                        searchByGPS();
                    }
                });
            }
        }, 0, 1000 * 60 * 10);
    }

    @Override
    public void gotWeatherInfo(WeatherInfo weatherInfo, YahooWeather.ErrorType errorType) {
        if (weatherInfo != null) {
            datetimeText.setText(dateFormat.format(new Date()));
            logitudeText.setText(weatherInfo.getAddress().getLongitude() + "");
            latitudeText.setText(weatherInfo.getAddress().getLatitude() + "");
            addressText.setText(weatherInfo.getAddress().getAddressLine(0));
            weatherText.setText(weatherInfo.getCurrentText());
            temperatureText.setText(weatherInfo.getCurrentTemp() + " ºC");
            humidityText.setText(weatherInfo.getAtmosphereHumidity() + " %");
            pressureText.setText(weatherInfo.getAtmospherePressure());
            windDirectionText.setText(weatherInfo.getWindDirection() + "˚");
            windSpeedText.setText(weatherInfo.getWindSpeed() + " m/s");
            windChillText.setText(weatherInfo.getWindChill() + " °F");
            visibilityText.setText(weatherInfo.getAtmosphereVisibility());
        }
    }

    private void searchByGPS() {
        yahooWeather.setNeedDownloadIcons(true);
        yahooWeather.setUnit(YahooWeather.UNIT.CELSIUS);
        yahooWeather.setSearchMode(YahooWeather.SEARCH_MODE.GPS);
        yahooWeather.queryYahooWeatherByGPS(getApplicationContext(), this);
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (timer != null) {
            timer.cancel();
            timer = null;
        }
    }
}

<!-- activity_weather.xml -->

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="20dp"
    android:paddingLeft="20dp"
    android:paddingRight="20dp"
    android:paddingTop="20dp"
    tools:context=".activity.WeatherActivity">

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Datetime :" />

                <TextView
                    android:id="@+id/datetimeText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Logitude :" />

                <TextView
                    android:id="@+id/logitudeText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Latitude :" />

                <TextView
                    android:id="@+id/latitudeText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Address :" />

                <TextView
                    android:id="@+id/addressText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Weather :" />

                <TextView
                    android:id="@+id/weatherText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Temperature :" />

                <TextView
                    android:id="@+id/temperatureText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Wind Chill :" />

                <TextView
                    android:id="@+id/windChillText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Wind Direction :" />

                <TextView
                    android:id="@+id/windDirectionText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Wind Speed :" />

                <TextView
                    android:id="@+id/windSpeedText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Humidity :" />

                <TextView
                    android:id="@+id/humidityText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Pressure :" />

                <TextView
                    android:id="@+id/pressureText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    style="@style/TextStyle1"
                    android:text="Visibility :" />

                <TextView
                    android:id="@+id/visibilityText"
                    style="@style/TextStyle2"
                    android:textColor="@color/colorBlue" />
            </LinearLayout>
        </LinearLayout>
    </ScrollView>
</LinearLayout>

TextView 에 공통으로 스타일을 지정하기 위해 styles.xml 에 추가합니다.

<style name="TextStyle1">
    <item name="android:layout_width">0dp</item>
    <item name="android:layout_height">wrap_content</item>
    <item name="android:layout_weight">1</item>
    <item name="android:textColor">@color/colorText</item>
    <item name="android:textSize">14sp</item>
</style>

<style name="TextStyle2">
    <item name="android:layout_width">0dp</item>
    <item name="android:layout_height">wrap_content</item>
    <item name="android:layout_weight">2</item>
    <item name="android:textColor">@color/colorText</item>
    <item name="android:textSize">14sp</item>
</style>

실행 결과

앱을 실행하면 아래 이미지와 같이 현재 위치의 날씨 정보를 확인할 수 있습니다.

참고

• https://github.com/zh-wang/YWeatherGetter4a