java - implementar - retrofit post

Operación no compatible: Android, Retrofit, OkHttp. Agregar interceptor en OkHttpClient

Question

Estoy tratando de agregar autenticación basada en token a través de Retrofit 2.0-beta3 y OkHttpClient en Android usando interceptores. Pero obtengo UnsupportedOperationException cuando agrego mi interceptor en OkHttpClient. Aquí está mi código: en ApiClient.java

public static TrequantApiInterface getClient(final String token) {
if( sTreqantApiInterface == null) {
Log.v(RETROFIT_LOG, "Creating api client for the first time");
OkHttpClient okClient = new OkHttpClient();
okClient.interceptors().add(new Interceptor() {
@Override
public Response intercept(Interceptor.Chain chain) throws IOException {
Request original = chain.request();
// Request customization: add request headers
Request.Builder requestBuilder = original.newBuilder()
.header("Authorization", token)
.method(original.method(), original.body());
Request request = requestBuilder.build();
return chain.proceed(request);
}
});
Retrofit client = new Retrofit.Builder()
.baseUrl(baseUrl)
.client(okClient)
.addConverterFactory(GsonConverterFactory.create())
.build();
sTreqantApiInterface = client.create(TrequantApiInterface.class);
}
return sTreqantApiInterface;
}

Y lo uso como:

private void ampFreqTest(){
String token = getSharedPreferences(getString(R.string.preference_file_key), Context.MODE_PRIVATE)
.getString(getString(R.string.key_token), "");
service = ApiClient.getClient(token);
//I get an exception on this line:
Call<List<AmpFreq>> call = service.getUserAmpFreq("1");
call.enqueue(new Callback<List<AmpFreq>>() {
@Override
public void onResponse(Response<List<AmpFreq>> response) {
Toast.makeText(HomeScreen.this, "Got result", Toast.LENGTH_LONG);
Log.v(ApiClient.RETROFIT_LOG, "Success api client." + response.message());
Log.v(ApiClient.RETROFIT_LOG, "Success api client.");
}
@Override
public void onFailure(Throwable t) {
Toast.makeText(HomeScreen.this, t.getMessage() , Toast.LENGTH_LONG);
Log.v(ApiClient.RETROFIT_LOG, "Fail api client." + t.getMessage() );
}
});
}

Pero me sale este error:

Process: com.trequant.usman.trequant_android, PID: 14400
java.lang.UnsupportedOperationException at java.util.Collections$UnmodifiableCollection.add(Collections.java:932)
at com.trequant.usman.trequant_android.api.ApiClient.getClient(ApiClient.java:41)

Me da un error al agregar un nuevo interceptor que dice que no es ModificableCollection pero la documentación para la función interceptores () dice: / **

 * Returns a modifiable list of interceptors that observe the full span of each call: from before
* the connection is established (if any) until after the response source is selected (either the
* origin server, cache, or both).
*/

¿Qué estoy haciendo mal? ¿Podría ser un error?

Answer 1

Este problema ocurre cuando cambia Retrofit 2.0-beta2 a Retrofit 2.0-beta3 . OkHttpClient usar el generador si desea crear el objeto OkHttpClient .

Cambio :

 OkHttpClient okClient = new OkHttpClient();
okClient.interceptors().add(new Interceptor() {
@Override
public Response intercept(Interceptor.Chain chain) throws IOException {
Request original = chain.request();
// Request customization: add request headers
Request.Builder requestBuilder = original.newBuilder()
.header("Authorization", token)
.method(original.method(), original.body());
Request request = requestBuilder.build();
return chain.proceed(request);
}
});

a :

 OkHttpClient okClient = new OkHttpClient.Builder()
.addInterceptor(
new Interceptor() {
@Override
public Response intercept(Interceptor.Chain chain) throws IOException {
Request original = chain.request();
// Request customization: add request headers
Request.Builder requestBuilder = original.newBuilder()
.header("Authorization", token)
.method(original.method(), original.body());
Request request = requestBuilder.build();
return chain.proceed(request);
}
})
.build();

Debería resolver tu problema.

Answer 2

Pruebe esto si la otra respuesta no funciona:

OkHttpClient okHttpClient = new OkHttpClient.Builder()
.addInterceptor(new MyInterceptor())
.build();
retrofit = new Retrofit.Builder()
.baseUrl("http://google.com")
.addConverterFactory(GsonConverterFactory.create())
.client(okHttpClient)
.build();