java - Android Retrofit: missing method body, or declare abstract -

i writing android app use retrofit make api requests.

i have helper class this:

public class apiservice {     public static final string tag = apiservice.class.getsimplename();      public static final string base_url = "https://myapiurl.com";      public static void testapi(){         apiendpointinterface apiservice = prepareservice();         apiservice.ping(new callback<response>() {             @override             public void success(response apiresponse, retrofit.client.response response) {                 log.e(tag, apiresponse.tostring());              }              @override             public void failure(retrofiterror error) {                 log.e("retrofit:", error.tostring());              }         });      }      private static apiendpointinterface prepareservice() {         restadapter restadapter = new restadapter.builder()                 .setendpoint(base_url)                 .build();         apiendpointinterface apiservice =                 restadapter.create(apiendpointinterface.class);          restadapter.setloglevel(restadapter.loglevel.full);         return apiservice;     }  } 

and actual retrofit implementation simple:

public class apiendpointinterface {      @get("/v1/myendpoint")     void ping(callback<response> cb); } 

the problem is, cannot build project, error:

error:(12, 10) error: missing method body, or declare abstract 

referring apiendpointinterface class.

any idea what's going on?

try public interface api declaration.

public interface apiendpointinterface {      @get("/v1/myendpoint")     void ping(callback<response> cb); } 

also, looks you're creating apiendpointinterface before telling builder set log level full.

private static apiendpointinterface prepareservice() {      restadapter restadapter = new restadapter.builder()             .setendpoint(base_url)             .setloglevel(restadapter.loglevel.full);             .build();      apiendpointinterface apiservice =             restadapter.create(apiendpointinterface.class);      return apiservice; }