sohumango / demoretrofit2 Goto Github PK

ref:  https://qiita.com/Nunocky/items/525786b36a3c557e8118

RXJava2 + RetroFit2で WebAPIを叩く

@android studio version: 3.3.1


sever:
    http://weather.livedoor.com/forecast/webservice/json/v1?city=200010

manifest:
    <uses-permission android:name="android.permission.INTERNET"/>

build.gradle
    api "io.reactivex.rxjava2:rxjava:2.1.11"
    implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'
    api 'com.squareup.retrofit2:retrofit:2.4.0'
    api 'com.squareup.retrofit2:converter-gson:2.4.0'
    api 'com.squareup.retrofit2:adapter-rxjava2:2.4.0'

IWeatherAPI.java
        public interface IWeatherAPI {

            @GET("/forecast/webservice/json/v1")
            Single<WeatherResponse> getWhether(@Query("city") String cityId);
        }


WeatherResponse.java
        public class WeatherResponse {
            List<PinPointLocation> pinPointLocations;
            String link;
            List<Forecast> forecasts;
            Location location;
            String publicTime;
            Copyright copyright;
            String title;
            Description description;

            static class PinPointLocation {
                String link;
                String name;
            }

            static class Forecast {
                String dateLavel;
                String telop;
                Temperature temperature;
                Image image;
            }

            static class Temperature {
                TemperatureSub min;
                TemperatureSub max;

                static class TemperatureSub {
                    String celsius;
                    String fahrenheit;
                }
            }

            static class Image {
                int width;
                String url;
                String title;
                int height;
            }

            static class Location {
                String city;
                String area;
                String prefecture;
            }

            static class Copyright {
                List<Provider> provider;
                String link;
                String title;
                Image image;

                static class Provider {
                    String link;
                    String name;
                }
            }

            static class Description {
                String text;
                String publicTime;
            }
        }

MainActivity : APIアクセスの宣言
        public class MainActivity extends AppCompatActivity implements android.view.View.OnClickListener {

            private IWeatherAPI weatherApi;
            private CompositeDisposable compositeDisposable = new CompositeDisposable();

            protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);


                Retrofit retrofit = new Retrofit.Builder()
                    .baseUrl("http://weather.livedoor.com")
                    .addConverterFactory(GsonConverterFactory.create())
                    .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                    .build();

                weatherApi = retrofit.create(IWeatherAPI.class);

                //add button event:
                Button clickButton = (Button) findViewById(R.id.button10);
                clickButton.setOnClickListener(this);


                @Override
                public void onClick(View v) {
                    Button	btn = (Button)v;
                    if( btn.getId() == R.id.button10 )	// OK
                    {
                        TextView mTextView_Telop = (TextView) findViewById(R.id.textView2);
                        TextView mEditText_Desc = (TextView) findViewById(R.id.textView3);
                        final String TAG = "hello";

                        Disposable d = weatherApi.getWhether("200010")
                                .subscribeOn(Schedulers.io())
                                .observeOn(AndroidSchedulers.mainThread())
                                .subscribe(
                                        (response) -> {
                                            mTextView_Telop.setText(response.forecasts.get(0).telop);
                                            mEditText_Desc.setText(response.description.text);
                                        },
                                        (err) -> {
                                            Log.d(TAG, err.toString());
                                            Toast.makeText(MainActivity.this, err.toString(), Toast.LENGTH_SHORT).show();
                                        }
                                );
                        compositeDisposable.add(d);
                    }
                }