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Android: Enable apps to provide a custom configuration to Fresco

Summary:
The `FrescoModule` supports providing a custom image pipeline configuration. This module is created by `MainReactPackage` but `MainReactPackage` doesn't expose any way to customize the Fresco configuration. This change adds a parameter to `MainReactPackage`'s constructor so that the `FrescoModule`'s configuration can be customized by the app. A couple of design choices were made in this change:
  - `MainReactPackage`'s new constructor parameter is a `MainPackageConfig`. Introducing `MainPackageConfig` enables `MainReactPackage` to nicely support new optional configuration options in the future. Imagine the alternative of each optional configuration being a separate parameter to the `MainReactPackage` constructor.
  - `FrescoModule` exposes its default configuration as a builder object through the `getDefaultConfigBuilder` method. This enables app's to start with `FrescoModule`'s default configuration and then modify it.

**Test plan (required)**

Verified that passing a custom config based on React Nati
Closes facebook#10906

Differential Revision: D4237054

Pulled By: mkonicek

fbshipit-source-id: 8a62a6f0e77ca5f6d35238950094686756262196
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rigdern authored and DanielMSchmidt committed Nov 28, 2016
1 parent 66eceab commit be22da86d099d5329ab3bed59070a7071244ed88
@@ -111,14 +111,23 @@ public static boolean hasBeenInitialized() {
}

private static ImagePipelineConfig getDefaultConfig(Context context) {
return getDefaultConfigBuilder(context).build();
}

/**
* Get the default Fresco configuration builder.
* Allows adding of configuration options in addition to the default values.
*
* @return {@link ImagePipelineConfig.Builder} that has been initialized with default values
*/
public static ImagePipelineConfig.Builder getDefaultConfigBuilder(Context context) {
HashSet<RequestListener> requestListeners = new HashSet<>();
requestListeners.add(new SystraceRequestListener());

return OkHttpImagePipelineConfigFactory
.newBuilder(context.getApplicationContext(), OkHttpClientProvider.getOkHttpClient())
.setDownsampleEnabled(false)
.setRequestListeners(requestListeners)
.build();
.setRequestListeners(requestListeners);
}

private static class FrescoHandler implements SoLoaderShim.Handler {
@@ -4,6 +4,7 @@ android_library(
name = 'shell',
srcs = glob(['**/*.java']),
deps = [
react_native_dep('libraries/fresco/fresco-react-native:imagepipeline'),
react_native_dep('libraries/soloader/java/com/facebook/soloader:soloader'),
react_native_dep('third-party/android/support/v4:lib-support-v4'),
react_native_dep('third-party/java/infer-annotations:infer-annotations'),
@@ -0,0 +1,42 @@
/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/

package com.facebook.react.shell;

import com.facebook.imagepipeline.core.ImagePipelineConfig;

/**
* Configuration for {@link MainReactPackage}
*/
public class MainPackageConfig {

private ImagePipelineConfig mFrescoConfig;

private MainPackageConfig(Builder builder) {
mFrescoConfig = builder.mFrescoConfig;
}

public ImagePipelineConfig getFrescoConfig() {
return mFrescoConfig;
}

public static class Builder {

private ImagePipelineConfig mFrescoConfig;

public Builder setFrescoConfig(ImagePipelineConfig frescoConfig) {
mFrescoConfig = frescoConfig;
return this;
}

public MainPackageConfig build() {
return new MainPackageConfig(this);
}
}
}
@@ -74,6 +74,18 @@
*/
public class MainReactPackage extends LazyReactPackage {

private MainPackageConfig mConfig;

public MainReactPackage() {
}

/**
* Create a new package with configuration
*/
public MainReactPackage(MainPackageConfig config) {
mConfig = config;
}

@Override
public List<ModuleSpec> getNativeModules(final ReactApplicationContext context) {
return Arrays.asList(
@@ -116,7 +128,7 @@ public NativeModule get() {
new ModuleSpec(FrescoModule.class, new Provider<NativeModule>() {
@Override
public NativeModule get() {
return new FrescoModule(context);
return new FrescoModule(context, mConfig != null ? mConfig.getFrescoConfig() : null);
}
}),
new ModuleSpec(I18nManagerModule.class, new Provider<NativeModule>() {

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