生活随笔
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Retrofit+RxJava
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更改 Retrofit解析網頁Json數據簡單實例,將Retrofit中的回調方式改為RxJava方式
dependencies {compile fileTree(
dir:
'libs', include: [
'*.jar'])testCompile
'junit:junit:4.12'compile
'com.android.support:appcompat-v7:23.4.0'compile
'com.squareup.retrofit2:converter-gson:2.1.0'compile
'io.reactivex:rxjava:1.0.14'compile
'io.reactivex:rxandroid:1.0.1'compile
'com.squareup.picasso:picasso:2.5.2'compile
'com.jakewharton:butterknife:8.2.1'apt
'com.jakewharton:butterknife-compiler:8.2.1'compile
'com.squareup.retrofit2:adapter-rxjava:2.1.0'}
package com.android.retrofitdemo;
import retrofit2.Call;
import retrofit2.http.GET;
import retrofit2.http.Query;
import rx.Observable;
/*** 獲取新聞列表*/
public interface NewsService {@GET(
"/api/cook/list")Observable<Tngou> getNews(
@Query(
"id")
int id,
@Query(
"page")
int page,
@Query(
"rows")
int rows);
}
package com.android.retrofitdemo;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ListView;
import java.util.ArrayList;
import java.util.List;
import butterknife.BindView;
import butterknife.ButterKnife;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import retrofit2.Retrofit;
import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
import retrofit2.converter.gson.GsonConverterFactory;
import rx.Subscriber;
import rx.android.schedulers.AndroidSchedulers;
import rx.functions.Action1;
import rx.schedulers.Schedulers;
import rx.subjects.Subject;
public class MainActivity extends AppCompatActivity{@BindView(R.id.news_listView)ListView newsListView;
private NewsAdapter adapter;
private List<News> newsList;
@Overrideprotected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);ButterKnife.bind(
this);Retrofit retrofit =
new Retrofit.Builder().baseUrl(
"http://www.tngou.net").addCallAdapterFactory(RxJavaCallAdapterFactory.create()).addConverterFactory(GsonConverterFactory.create()).build();NewsService newsService = retrofit.create(NewsService.class);newsService.getNews(
0,
1,
20).subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread()).subscribe(
new Subscriber<Tngou>() {
@Overridepublic void onCompleted() {}
@Overridepublic void onError(Throwable e) {}
@Overridepublic void onNext(Tngou tngou) {newsList = tngou.getNewsList();adapter.addAll(newsList);}} );ListView newsListView = (ListView) findViewById(R.id.news_listView);adapter =
new NewsAdapter(
this,
new ArrayList<News>());newsListView.setAdapter(adapter);}
}
總結
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