1、okhttp3去掉https证书校验的OkHttpClient:
/** * 获取OkHttpClient * * @return OkHttpClient */ public static OkHttpClient getUnsafeOkHttpClient() { try { final TrustManager[] trustAllCerts = new TrustManager[]{ new X509TrustManager() { @Override public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) { } @Override public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) { } @Override public java.security.cert.X509Certificate[] getAcceptedIssuers() { return new java.security.cert.X509Certificate[]{}; } } }; final SSLContext sslContext = SSLContext.getInstance("SSL"); sslContext.init(null, trustAllCerts, new java.security.SecureRandom()); final javax.net.ssl.SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory(); OkHttpClient.Builder builder = new OkHttpClient.Builder(); builder.sslSocketFactory(sslSocketFactory); builder.hostnameVerifier(new HostnameVerifier() { @Override public boolean verify(String hostname, SSLSession session) { return true; } }); return builder.build(); } catch (Exception e) { throw new RuntimeException(e); } }2、现在就可以正常使用okhttpclient了，如果还想在fresco中加入这个网络库，需要在fresco初始化时引入第三方库：
ImagePipelineConfig.Builder builder = OkHttpImagePipelineConfigFactory .newBuilder(AppUtils.getContext(), HttpURLConnectionUtil.getUnsafeOkHttpClient()); //BitmapConfig。默认使用RGB_565。该格式对png无效 Bitmap.Config bitmapConfig = Bitmap.Config.RGB_565; builder.setBitmapsConfig(bitmapConfig); //内存控制为最大1/8 builder.setBitmapMemoryCacheParamsSupplier( new BitmapMemoryCacheParamsSupplier((ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE))); Fresco.initialize(AppUtils.getContext(), builder.build());