public static void initialize(
      Context context,
      @Nullable ImagePipelineConfig imagePipelineConfig,
      @Nullable DraweeConfig draweeConfig,
      boolean useNativeCode) {
    if (FrescoSystrace.isTracing()) {
      FrescoSystrace.beginSection("Fresco#initialize");
    }
    if (sIsInitialized) {
      FLog.w(
          TAG,
          "Fresco has already been initialized! `Fresco.initialize(...)` should only be called "
              + "1 single time to avoid memory leaks!");
    } else {
      sIsInitialized = true;
    }

    NativeCodeSetup.setUseNativeCode(useNativeCode);

    if (!NativeLoader.isInitialized()) {
      if (FrescoSystrace.isTracing()) {
        FrescoSystrace.beginSection("Fresco.initialize->SoLoader.init");
      }
      try {
        Class<?> clazz =
            Class.forName("com.facebook.imagepipeline.nativecode.NativeCodeInitializer");
        clazz.getMethod("init", Context.class).invoke(null, context);
      } catch (ClassNotFoundException e) {
        // Failed to initialize SoLoader
        NativeLoader.initIfUninitialized(new SystemDelegate());
      } catch (IllegalAccessException e) {
        // Failed to initialize SoLoader
        NativeLoader.initIfUninitialized(new SystemDelegate());
      } catch (InvocationTargetException e) {
        // Failed to initialize SoLoader
        NativeLoader.initIfUninitialized(new SystemDelegate());
      } catch (NoSuchMethodException e) {
        // Failed to initialize SoLoader
        NativeLoader.initIfUninitialized(new SystemDelegate());
      } finally {
        if (FrescoSystrace.isTracing()) {
          FrescoSystrace.endSection();
        }
      }
    }
    // we should always use the application context to avoid memory leaks
    context = context.getApplicationContext();
    if (imagePipelineConfig == null) {
      ImagePipelineFactory.initialize(context);
    } else {
      ImagePipelineFactory.initialize(imagePipelineConfig);
    }
    initializeDrawee(context, draweeConfig);
    if (FrescoSystrace.isTracing()) {
      FrescoSystrace.endSection();
    }
  }
Initializes Fresco with the specified config.
drawee-backends/drawee-pipeline/src/main/java/com/facebook/drawee/backends/pipeline/Fresco.java