Download Base64 Image On A Protected Site Using Picasso

I tried to use this Android Picasso library, How to add authentication headers? to access a protected image that returns the base64 version of the image. My problem is that the pic

Solution 1:

You need to intercept the answer and change it

OkHttpClient client;
OkHttpClient.Builder builderOkHttpClient;
builderOkHttpClient = newOkHttpClient.Builder();
        builderOkHttpClient.addInterceptor(newInterceptor() {
            @Overridepublic Response intercept(Chain chain)throws IOException {
                RequestnewRequest= chain.request().newBuilder()
                        .build();
                Responseresponse= chain.proceed(newRequest);
                try {
                    MediaTypecontentType= response.body().contentType();
                    Stringbase64String= response.body().string().getBytes("UTF-8");
                    base64String  = base64String .replace("data:image/jpeg;base64,", "");
                    byte[] decodedString = Base64.decode(base64String , Base64.DEFAULT);
                    ResponseBodybody= ResponseBody.create(contentType, decodedString);
                    response = response.newBuilder().body(body).build();
                } catch (JSONException e) {
                    e.printStackTrace();
                }
                return response;
            }
        });

 intcacheSize=10 * 1024 * 1024;
        Cachecache=newCache(context.getCacheDir(), cacheSize);
        builderOkHttpClient.cache(cache);
        client = builderOkHttpClient.build();
        Application.getAppComponent().inject(this);
        picasso = newPicasso.Builder(context)
                .downloader(newOkHttp3Downloader(client))
                .loggingEnabled(true)
                .indicatorsEnabled(true)
                .listener(newPicasso.Listener() {
                              @OverridepublicvoidonImageLoadFailed(Picasso picasso, Uri uri, Exception exception) {
                                  Log.e("PICASSO", "loading image " + uri);
                                  Log.e("PICASSO ERROR", exception.getMessage());
                              }
                          }
                ).build();

Solution 2:

Above answer works great. Then if the base 64 encoded image is further stored inside a JSON Object.

String jsonData = response.body().string();
 JSONObjectJobject = newJSONObject(jsonData);
 String base64String = (String) Jobject.get("ImageData");