自定义拦截器

先添加依赖
//okhttp依赖
 compile 'com.squareup.okhttp3:okhttp:3.9.0'
//拦截器依赖
    compile 'com.squareup.okhttp3:logging-interceptor:3.9.0'
//banner依赖
    compile 'com.youth.banner:banner:1.4.10'
//Gson依赖
    compile 'com.google.code.gson:gson:2.8.2'
//evenbus依赖
    compile 'org.greenrobot:eventbus:3.1.1'
//图片依赖
   compile'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
import java.io.IOException;


import okhttp3.FormBody;
import okhttp3.Interceptor;
import okhttp3.Request;
import okhttp3.Response;


/**
 * Created by peng on 2017/11/20.
 */


public class MyInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
   

   Request request = chain.request();
    String url = request.url().url().toString();
    url+="&source=android";
    Request newRequset = request.newBuilder().url(url).build();
    return chain.proceed(newRequset);
}

}