【Android高级】RxJava2.0和Retrofit2.0的使用探究
初次测试：
MainAct:
package com.rx.test.rxtestproject;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import com.lidroid.xutils.ViewUtils;
import com.lidroid.xutils.view.annotation.ViewInject;
import com.lidroid.xutils.view.annotation.event.OnClick;
import com.myrest.test.IGitApi;
import com.myrest.test.UserBean;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Arrays;
import java.util.List;
import retrofit.Call;
import retrofit.Callback;
import retrofit.GsonConverterFactory;
import retrofit.Response;
import retrofit.Retrofit;
import rx.Observable;
import rx.Subscriber;
import rx.android.schedulers.AndroidSchedulers;
import rx.functions.Action1;
import rx.functions.Func1;
import rx.schedulers.Schedulers;
public class MainActivity extends AppCompatActivity {
@ViewInject(R.id.textView)
TextView textView;
@ViewInject(R.id.imageView)
ImageView imageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ViewUtils.inject(this);
}
public void test1(View v) {
Observable<String> observable = Observable.create(new Observable.OnSubscribe<String>() {
@Override
public void call(Subscriber<? super String> subscriber) {
subscriber.onNext("haha");
}
});
Subscriber<String> subscriber = new Subscriber<String>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
}
@Override
public void onNext(String s) {
textView.setText(s);
}
};
observable.subscribe(subscriber);
}
public void test2(View v) {
// Observable<String>observable=Observable.just("just test");
// Action1<String>action1=new Action1<String>() {
// @Override
// public void call(String s) {
// textView.setText(s);
// }
// };
//
// observable.subscribe(action1);
// Observable.just("Test just").subscribe(new Action1<String>() {
// @Override
// public void call(String s) {
// textView.setText(s);
// }
// });
// Observable.just("test map")
// .map(new Func1<String, String >() {
// @Override
// public String call(String s) {
// return s+" in call";
// }
// }).map(new Func1<String, String>() {
// @Override
// public String call(String s) {
// return s+" a in";
// }
// }).subscribe(new Action1<String>() {
// @Override
// public void call(String s) {
// textView.setText(s);
// }
// });
Observable.just(5).map(new Func1<Integer, String>() {
@Override
public String call(Integer integer) {
return integer + " s1";
}
}).map(new Func1<String, Integer>() {
@Override
public Integer call(String s) {
return 9;
}
}).subscribe(new Action1<Integer>() {
@Override
public void call(Integer integer) {
textView.setText("last:" + integer);
}
});
}
public void test3(View v) {
String[] strs = {"a", "b", "c"};
// Observable.from(strs).subscribe(new Subscriber<String>() {
// @Override
// public void onStart() {
// // super.onStart();
// textView.setText("");
// Log.i("tag", "onStart");
// }
//
// @Override
// public void onCompleted() {
// Log.i("tag", "onCompleted");
// }
//
// @Override
// public void onError(Throwable e) {
//
// }
//
// @Override
// public void onNext(String s) {
// Log.i("tag", "onNext");
// textView.append(s);
// }
// });
Observable.just(Arrays.asList(strs)).flatMap(new Func1<List<String>, Observable<String>>() {
@Override
public Observable<String> call(List<String> strings) {
return Observable.from(strings);
}
}).subscribe(new Subscriber<String>() {
@Override
public void onStart() {
textView.setText("");
Log.i("tag", "onStart");
}
@Override
public void onCompleted() {
Log.i("tag", "onCompleted");
}
@Override
public void onError(Throwable e) {
}
@Override
public void onNext(String s) {
Log.i("tag", "onNext");
textView.append(s);
}
});
}
public void test4(View v) {
Observable.create(new Observable.OnSubscribe<Bitmap>() {
@Override
public void call(Subscriber<? super Bitmap> subscriber) {
try {
URL url = new URL("http://a.hiphotos.baidu.com/zhidao/pic/item/0824ab18972bd4073df731c379899e510fb309df.jpg");
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
InputStream inputStream = httpURLConnection.getInputStream();
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
subscriber.onNext(bitmap);
Log.i("tag", "http:" + Thread.currentThread().getName());
} catch (Exception e) {
e.printStackTrace();
}
}
}).subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread()).subscribe(new Action1<Bitmap>() {
@Override
public void call(Bitmap bitmap) {
imageView.setImageBitmap(bitmap);
Log.i("tag", "setbitmap:" + Thread.currentThread().getName());
}
});
// .subscribeOn(Schedulers.io()
//
// ).
//
// observeOn(AndroidSchedulers.mainThread()
//
// ).
//
// subscribe(new Action1<Bitmap>() {
// @Override
// public void call (Bitmap bitmap){
//
// }
// }
//
// );
// }
}
public void test5(View v) {
String endUrl = "http://ip.taobao.com";
Retrofit retrofit = new Retrofit.Builder().baseUrl(endUrl).addConverterFactory(GsonConverterFactory.create()).build();
ApiService apiService = retrofit.create(ApiService.class);
Call<GetIpInfoResponse> call = apiService.getIpInfo("63.223.108.42");
call.enqueue(new Callback<GetIpInfoResponse>() {
@Override
public void onResponse(Response<GetIpInfoResponse> response, Retrofit retrofit) {
GetIpInfoResponse getIpInfoResponse = response.body();
textView.setText(getIpInfoResponse.data.country + "\n" + getIpInfoResponse.toString());
}
@Override
public void onFailure(Throwable t) {
textView.setText("fail");
}
});
}
@OnClick(R.id.button)
public void test6(View v) {
// String API = "http://api.github.com";
//
// Retrofit retrofit = new Retrofit.Builder().baseUrl(API).addConverterFactory(GsonConverterFactory.create()).build();
//
//
// IGitApi iGitApi = retrofit.create(IGitApi.class);
//
// iGitApi.getData("scboyhj", new Callback<UserBean>() {
//
// @Override
// public void onResponse(Response<UserBean> response, Retrofit retrofit) {
// UserBean userBean = response.body();
// textView.setText(userBean.toString());
// }
//
// @Override
// public void onFailure(Throwable t) {
// textView.setText("fail in");
// }
// });
String endUrl = "https://api.github.com";
Retrofit retrofit = new Retrofit.Builder().baseUrl(endUrl).addConverterFactory(GsonConverterFactory.create()).build();
IGitApi apiService = retrofit.create(IGitApi.class);
Call<UserBean> call = apiService.getData("scboyhj");
call.enqueue(new Callback<UserBean>() {
@Override
public void onResponse(Response<UserBean> response, Retrofit retrofit) {
UserBean userBean = response.body();
textView.setText(userBean.toString());
}
@Override
public void onFailure(Throwable t) {
textView.setText("fail in");
}
});
}
}
接口
public interface IGitApi {
@GET("/users/{user}")
public Call<UserBean> getData(@Path("user") String user);
}
综合测试：分开和一起
public class MainAct extends AppCompatActivity {
@ViewInject(R.id.retrorxIg)
ImageView imageView;
@ViewInject(R.id.retrorxTv)
TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.rxretrolay);
ViewUtils.inject(this);
}
@OnClick(R.id.retroBt)
public void testRe(View v) {
String url = "https://api.github.com";
Retrofit retrofit = new Retrofit.Builder().addConverterFactory(GsonConverterFactory.create()).baseUrl(url).build();
GitInter gitInter = retrofit.create(GitInter.class);
Call<GitBean> gitBeanCall = gitInter.getInfo("scboyhj");
gitBeanCall.enqueue(new Callback<GitBean>() {
@Override
public void onResponse(Response<GitBean> response, Retrofit retrofit) {
GitBean gitBean = response.body();
textView.setText(gitBean.toString());
}
@Override
public void onFailure(Throwable t) {
textView.setText("on fail");
}
});
}
@OnClick(R.id.rxBt)
public void testRx(View v) {
Observable.just("").map(new Func1<String, Bitmap>() {
@Override
public Bitmap call(String s) {
try {
URL url = new URL("http://pic30.nipic.com/20130618/11860366_201437262000_2.jpg");
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
Bitmap bitmap = BitmapFactory.decodeStream(urlConnection.getInputStream());
return bitmap;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}).subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread()).subscribe(new Action1<Bitmap>() {
@Override
public void call(Bitmap bitmap) {
if (bitmap == null) {
textView.setText("internet fail");
} else {
imageView.setImageBitmap(bitmap);
}
}
});
}
@OnClick(R.id.rx_retro_Bt)
public void testRx_Retro(View v){
String url = "https://api.github.com";
Retrofit retrofit = new Retrofit.Builder().addConverterFactory(GsonConverterFactory.create()).addCallAdapterFactory(RxJavaCallAdapterFactory.create()).baseUrl(url).build();
final GitInter2 gitInter = retrofit.create(GitInter2.class);
Observable.just("scboyhj").flatMap(new Func1<String, Observable<GitBean>>() {
@Override
public Observable<GitBean> call(String s) {
Observable<GitBean> gitBeanCall = gitInter.getInfo(s);
return gitBeanCall;
}
}).subscribeOn(Schedulers.io()). observeOn(AndroidSchedulers.mainThread()).subscribe(new Observer<GitBean>() {
@Override
public void onCompleted() {
Log.i("tag","onCompleted");
}
@Override
public void onError(Throwable e) {
Log.i("tag","onError");
}
@Override
public void onNext(GitBean gitBean) {
textView.setText(gitBean.toString());
}
});
}
}