Summary:WRAP_CONTENT is not a valid size for MeasureSpec. While 0 is
a valid value size to pass to makeMeasureSpec, it's slightly cheaper to just
pass in 0 instead since makeMeasureSpec(0, UNSPECIFIED) is 0 anyway.
Differential Revision: D2968322
fb-gh-sync-id: 2ca0e27b12c1a8263800d96fec32127a4b967497
shipit-source-id: 2ca0e27b12c1a8263800d96fec32127a4b967497
Summary:Previously images that have exif orientation data would be cropped and the exif data
would be lost leading to us displaying pictures rotated in error.
Reviewed By: foghina
Differential Revision: D2971596
fb-gh-sync-id: 40f92e27089455259a7d8b83c92d0cf36367e5df
shipit-source-id: 40f92e27089455259a7d8b83c92d0cf36367e5df
Summary: Instead of dispatching calls to the JS thread in Java, do it in the C++ bridge. This moves us closer to the cxx bridge and will allow us to dispatch to the correct web worker in C++ instead of in Java
Reviewed By: mhorowitz
Differential Revision: D2954115
fb-gh-sync-id: 7e7d4eff2c72601b8b4416f1ccd8d2985aebd755
shipit-source-id: 7e7d4eff2c72601b8b4416f1ccd8d2985aebd755
Summary:build-break
Proguard was renaming MessageQueueThread interface methods that we reference from c++.
Differential Revision: D2960332
fb-gh-sync-id: 572dcd8a64e774f65c5abfb8cdf891efcb2bd591
shipit-source-id: 572dcd8a64e774f65c5abfb8cdf891efcb2bd591
Summary:I changed the technique used to hide the status bar and now it works properly. Also changed the way flags are set on the decorView to make sure it doesn't cause issues with other flags already set and fix deprecated Promise.reject
**Test plan**
Test using the UIExplorer StatusBar example, change the `hidden` prop value and go in and out of the app making sure the status bar has the right visibility.
Fixes#5991
Closes https://github.com/facebook/react-native/pull/6051
Differential Revision: D2960060
Pulled By: nicklockwood
fb-gh-sync-id: ee1c541896f5771d27cfd3ff18537edb6c017284
shipit-source-id: ee1c541896f5771d27cfd3ff18537edb6c017284
Summary:shame to astreet and glory circle ci
Closes https://github.com/facebook/react-native/pull/6038
Differential Revision: D2954377
fb-gh-sync-id: cda4f1e4d46c5a477756131a4c65a9430cd3cd95
shipit-source-id: cda4f1e4d46c5a477756131a4c65a9430cd3cd95
Summary: Now that web workers are just JSCExecutors, we can move forward with adding native module support. The means we need to supply the worker with a correct __fbBatchedBridgeConfig global so it can appropriately set up its JS MessageQueue. Unfortunately, native modules can't support multiple JS execution contexts out-of-the-box, so we need to whitelist those modules that actually can be referenced from a webworker. In order to do that, we add the supportsWebWorkers call in NativeModule and the SupportsWebWorkers annotation for JS modules. These add metadata to __fbBatchedBridgeConfig which allows us to create a new config with only those modules that support web workers.
Reviewed By: lexs
Differential Revision: D2927091
fb-gh-sync-id: 9b47331253b277940b552e7d899198b5f0a3ed8c
shipit-source-id: 9b47331253b277940b552e7d899198b5f0a3ed8c
Summary: Part of the plan to make web workers able to call native modules. We will reuse the infrastructure already present in JSCExecutor to allow web workers to call native modules via the Bridge.
Reviewed By: mhorowitz
Differential Revision: D2926896
fb-gh-sync-id: 259b766c46f79bbb5df9d1c648237b81fc1cc1f9
shipit-source-id: 259b766c46f79bbb5df9d1c648237b81fc1cc1f9
Summary:PR for https://github.com/facebook/react-native/issues/5958. The viewport meta tags if present, are overridden from the page and it is rendered according to the screen size. An example has been added in the Web View section of UIExplorer demo app.
Closes https://github.com/facebook/react-native/pull/6013
Differential Revision: D2953940
Pulled By: nicklockwood
fb-gh-sync-id: 012769f3a2a3f7dc942b60de02a9d1b80a27236e
shipit-source-id: 012769f3a2a3f7dc942b60de02a9d1b80a27236e
Summary:- modify ReactViewBackgroundDrawable.java to make each border a trapezoid
- disable anti-alias to eliminate white spaces between borders
- add examples to BorderExample.js (see last one)
Closes https://github.com/facebook/react-native/pull/5911
Differential Revision: D2953734
Pulled By: dmmiller
fb-gh-sync-id: dd103d80dec53ad35c9539ab1ceb93ef857feeb9
shipit-source-id: dd103d80dec53ad35c9539ab1ceb93ef857feeb9
Summary:Turns out we had two guides for the same thing.
Closes#6007
Reviewed By: mkonicek
Differential Revision:D2949234
Ninja: oss-only
fb-gh-sync-id: eda3a904ce8d8e7213a39021eb60b52449b20a43
shipit-source-id: eda3a904ce8d8e7213a39021eb60b52449b20a43
Summary:public
This adds the capability to get a View in absolute position on the screen, not just relative to the RootView. This is the Android implementation
Reviewed By: andreicoman11
Differential Revision: D2939170
fb-gh-sync-id: 658f1ebe6a458088f657a7469389add1a12222cd
shipit-source-id: 658f1ebe6a458088f657a7469389add1a12222cd
Summary:public
== cause ==
The follow block is error-prone.
```
for (ReactInstanceEventListener listener : mReactInstanceEventListeners) {
listener.onReactContextInitialized(reactContext);
}
```
Because calling `listener.onReactContextInitialized` may have side-effect that
removes the `listener` from `mReactInstanceEventListeners`, thus break the
iteration with exception.
I've found at least one place that has such side-effect
diffusion/FA/browse/master/java/com/facebook/fbreact/autoupdater/AutoUpdaterScheduler.java;9c09e5bbd411e093fb2ad022ee5d0ea473e9ebfe$32
The right way to fix this is to be side-effect proof.
Reviewed By: zahanm
Differential Revision: D2943494
fb-gh-sync-id: ba848ea736c5d2d0b8ef0b5a899603d734781361
shipit-source-id: ba848ea736c5d2d0b8ef0b5a899603d734781361
Summary:New prop `hitSlop` allows extending the touch area of Touchable components. This makes it easier to touch small buttons without needing to change your styles.
It takes `top`, `bottom`, `left`, and `right` same as the `pressRetentionOffset` prop. When a touch is moved, `hitSlop` is combined with `pressRetentionOffset` to determine how far the touch can move off the button before deactivating the button.
On Android I had to add a new file `ids.xml` to generate a unique ID to use for the tag where I store the `hitSlop` state. The iOS side is more straightforward.
terribleben worked on the iOS and JS parts of this diff.
Fixes#110
Closes https://github.com/facebook/react-native/pull/5720
Differential Revision: D2941671
Pulled By: androidtrunkagent
fb-gh-sync-id: 07e3eb8b6a36eebf76968fdaac3c6ac335603194
shipit-source-id: 07e3eb8b6a36eebf76968fdaac3c6ac335603194
Summary:
public
https://github.com/facebook/react-native/pull/4935 changed the window dimensions for android by replacing them with the actual screen dimensions. This changes the window dimensions back to their original values and adds `Dimensions.get('screen')` for the actual screen dimensions of the device.
Reviewed By: astreet
Differential Revision: D2921584
fb-gh-sync-id: 5d2677029c71d50691691dc651a11e9c8b115e8f
shipit-source-id: 5d2677029c71d50691691dc651a11e9c8b115e8f
Summary:
Adds APIs to get all the enumerable property names of an object and to get an object as a map of property names to JSON values.
public
Reviewed By: lexs
Differential Revision: D2916238
fb-gh-sync-id: 0d9ee1eb4886d58fba8241537f6a0dad6024bd0e
shipit-source-id: 0d9ee1eb4886d58fba8241537f6a0dad6024bd0e
Summary:
[This commit](e730a9fdd0) (_Load assets from same folder as JSbundle (Android)_) causes React Native to look for assets inside the same folder the JSBundle was loaded from and generates asset URIs containing the absolute path to the asset (e.g. _/sdcard/bundle/drawable-xxhdpi/ic_back.png_).
While this is fine for a normal `ImageView`, `ToolbarAndroid`/`ReactToolbar` currently crashes if the icons are located on the file system. This happens because when setting an icon on `ReactToolbar`, Fresco is only used if the icon URI contains `http:// `or `https://`. For all other cases (like in this case where it starts with `file://`), the view tries to load the Drawable from the Android App Resources by it's name (which in this case is an absolute file-URI) and therefore causes it to crash (`getDrawableResourceByName` returns 0 if the Drawable was not found, then `getResources().getDrawable(DrawableRes int id)` throws an Exception if th
Closes https://github.com/facebook/react-native/pull/5753
Reviewed By: svcscm
Differential Revision: D2921418
Pulled By: foghina
fb-gh-sync-id: 7a3f81b530a8c1530e98e7b592ee7e44c8f19df1
shipit-source-id: 7a3f81b530a8c1530e98e7b592ee7e44c8f19df1
Reviewed By: mkonicek
Differential Revision:D2917191
Ninja: Only related to open source React Native, does not affect any fb apps
fb-gh-sync-id: c4fc80ebdd520942e75161a4a30ea4d18030bec4
shipit-source-id: c4fc80ebdd520942e75161a4a30ea4d18030bec4
Summary:
Output the Android artifacts in the new location so we can simply
do `./gradlew :ReactAndroid:installArchives` and `npm publish`.
**Test Plan**
Same as test plan of 702f999b05 without having to manually move the artifacts.
public
Reviewed By: bestander
Differential Revision: D2916664
fb-gh-sync-id: 27dcc711b3055a5a6c554ed1e69cf4a64add849c
shipit-source-id: 27dcc711b3055a5a6c554ed1e69cf4a64add849c
Summary:
As a part of this change I'm also renaming SimpleArray to JavaOnlyArray and SimpleMap to JavaOnlyMap. The main reason for the change is to support use-cases such as driving animations form the native code. In the case of native "animated" I'd like to be able to use the same interface as JS is using for updating the View properties. As view setters can take ReadableMap and ReadableArray as an argument in some cases it is necessary to create and pass those types to the setter. Using WritableNativeArray and WritableNativeMap for this purpose seems to me like a misuse and IMO will be less performant (vs java-only map/array) as those implementations of ReadableMap and ReadableArray proxies all their methods through JNI.
I'm also adding some additional class-level comments for the moved classes to avoid confusion and hopefuly prevent people from using those classess accidentally while writing native modules or methods that calls to JS.
Closes https://github.com/facebook/react-native/pull/5816
Reviewed By: svcscm
Differential Revision: D2911339
Pulled By: foghina
fb-gh-sync-id: 5b9a98d64f48d8bba34c15e3eecba2151da3577a
shipit-source-id: 5b9a98d64f48d8bba34c15e3eecba2151da3577a
Summary:
public
KeyboardListener needs DisplayMetrics to be initialized when it is attached. At
the moment, this breaks easily whenever we change these components, since DisplayMetrics are intialized
in a module and KeyboardListener is created eagerly in ReactRootView, whereas
ReactRootView can exist without the instance.
This changes to create DisplayMetrics as soon as possible, when the react
instance is built. The KeyboardListener is created and attached after the ReactRootView is
attached to an existing instance, point at which DisplayMetrics have to be
initialized.
Reviewed By: dmmiller
Differential Revision: D2911351
fb-gh-sync-id: 64d1805c5d5b2f6876adb694b565a2df059b381d
Summary:
This is a cut down version of a previous pull request with just the 4 corners catered for.
Closes https://github.com/facebook/react-native/pull/4252
Reviewed By: svcscm
Differential Revision: D2911959
Pulled By: androidtrunkagent
fb-gh-sync-id: 7ddcd684d90d4d92ccefed906c0126e92818dcde
Summary:
Expose method to implement changing font family cache. Like ide suggested in #4420 , this will helpful for using remote font file (use `Typeface#createFromFile` to load downloaded font file).
iOS's CoreText already allow this in native code.
Closes https://github.com/facebook/react-native/pull/4696
Reviewed By: bestander
Differential Revision: D2911762
Pulled By: andreicoman11
fb-gh-sync-id: a931e2e711dd94fa0df6fdd066827756d862a4ba
Summary:
RefreshControl did not start refreshing when refreshing was set to true initially. It also did not start refreshing on iOS when setting the prop from false to true without doing a pull to refresh gesture.
This was a pain in the ass to make work on iOS because UIRefreshControl seems super sensitive to when beginRefreshing can be called, for the initial render I need to call it in layoutSubviews. I also have to manually adjust the scrollview content offset when calling beginRefreshing. The code is a bit hacky but it was the only solution I found that was actually working.
Fixes#5716
Closes https://github.com/facebook/react-native/pull/5745
Reviewed By: svcscm
Differential Revision: D2910716
Pulled By: nicklockwood
fb-gh-sync-id: d60e73bcfe8d86bb01249ba5f17e6a23c5a5aff6
Summary:
fc94f1e6d0 and the following commits introduced some changes to the jni build but only changed the BUCK build files and not the gradle ones. This ports the changes to the gradle build files to fix the build.
Closes https://github.com/facebook/react-native/pull/5791
Reviewed By: svcscm
Differential Revision: D2910012
Pulled By: vjeux
fb-gh-sync-id: b6c7edfed6873d501e46e80a0c9f128d9df04ca4
Summary:
Everything below the bridge interacts with just a MessageQueueThread. The implementation (JMessageQueueThread) is injected from react/jni.
public
Reviewed By: astreet
Differential Revision: D2905178
fb-gh-sync-id: 8b138e746d5a96dd70837bb2149cd4e188fcdacc
Summary:
This just moves the jni code that actual figures out the cache dir into OnLoad.cpp and then passes it down to the JSCEXecutorFactory.
public
Reviewed By: astreet
Differential Revision: D2905176
fb-gh-sync-id: bedf52fbeaab6beabac25c87aad00a98ddf182f7
Summary:
So, this makes it so a set of behaviors that require accessing java can be injected from the jni/ folder. The behaviors are logging, perf logging, log markers and loading script from assets.
I'd argue that these should all actually be encapsulated by interfaces that are passed to the JSCExecutor/others (and I'd say that's regardless of whether they are injected from jni/ or not), but I wanted to stick to the least disruptive pattern for these changes.
public
Reviewed By: astreet
Differential Revision: D2905168
fb-gh-sync-id: 7c8c16cb77b8fc3d42750dacc6574259ad512ac2
Summary:
This adds a CountableJSExecutorFactory that derives from Countable. And uses that. Basically it allows code that doesn't need to know about jni or Countable not depend on it.
public
Reviewed By: astreet
Differential Revision: D2905163
fb-gh-sync-id: f2bfd5589a3185bb175ad51660b17be08ba62424
Summary:
Updates uses of FBLOG* and FBASSERT* to their glog equivalents.
public
Reviewed By: astreet
Differential Revision: D2905159
fb-gh-sync-id: 1f916283aa3de68d8469c8d4ca7fa0874cec28ef
Summary:
Native code accesses the Java Application through the ApplicationHolder. The application should be set on the holder as soon as possible. This change fixes a race in WebWorkersTest.
public
Reviewed By: astreet
Differential Revision: D2905157
fb-gh-sync-id: 7e488f4eecefedb8482276776b3a66e14a843f90
Summary:
My original implementation involved creating a `RCT_ENUM_CONVERTER` with `CLLocationAccuracy` on iOS and a Hashmap on Android that would convert `string` values to `doubles` for distance filtering.
I got this to work just fine but realized that I made things more complicated than they needed to be and simplified everything by just have the option be a decimal value (in meters) that works both for iOS and Android.
The only thing i'm not sure about is if we can set arbitrary values for CLLocationManager's distance filter.
nicklockwood Any idea?
Closes https://github.com/facebook/react-native/pull/5563
Reviewed By: svcscm
Differential Revision: D2908250
Pulled By: nicklockwood
fb-gh-sync-id: d83c12b3ce7c343f413749a2cd614b3bf04d6750
Summary:
`debugger.html` contained a ton of hacky code that was needed to ensure we have a clean JS runtime every time a client RN app connects. That was needed because we used the page's global environment as runtime. Some time ago WebWorker support was added and now we run RN code inside an isolated WebWorker instance, and we can safely get rid of all these hacks.
This has a bunch of nice side-effects: debug reload works faster, `console.log`s are preserved, `debuggerWorker.js` selection doesn't change.
Made sure the debugging (breakpoints, etc.) still works as before.
Small demo
![](http://g.recordit.co/FPdVHLHPUW.gif)
Closes https://github.com/facebook/react-native/pull/5715
Reviewed By: svcscm
Differential Revision: D2906602
Pulled By: frantic
fb-gh-sync-id: 1a6ab9a5655d7c32ddd23619564e59c377b53a35
Summary:
The change in 8e603940e3 actually causes a super bad bug when `context.getResources().getDisplayMetrics()` is accessed in other parts of the application.
It turns out that when you dive into the impl of `getRealMetrics`, it mutates whatever `DisplayMetrics` object is passed to it. In this case, `getDisplayMetrics` ends up mutating the `DisplayMetrics` object that sits on the application context's `Resources` instance.
This PR makes that not so.
/cc jesseruder ide jaysoo bestander astreet
Closes https://github.com/facebook/react-native/pull/5764
Reviewed By: svcscm
Differential Revision: D2902386
Pulled By: androidtrunkagent
fb-gh-sync-id: 3f24b68bc7e6b4ca83808c03ef3637e1ac9a673e
Summary:
public
JSC enforces a stack-alignment that wasn't always being provided on x86 builds. See D2886997.
Reviewed By: foghina
Differential Revision: D2900982
fb-gh-sync-id: 3f8dffcc1c528a4c21d7ed0b17e49d87761b1df7
Summary:
Perhaps there is a better way to do this, curious to hear it!
- If momentum scroll is active when `scrollEnabled` is toggled, the momentum scroll continues and the onMomentumScrollEnd event fires, which is the same as on iOS.
Closes https://github.com/facebook/react-native/pull/5656
Reviewed By: svcscm
Differential Revision: D2889897
Pulled By: dmmiller
fb-gh-sync-id: b2f44d2bcb48373f9945f6afd966447a118df717
Summary:
Rather than specifying Babel plugins in the `.babelrc` packaged with react-native, leverage a Babel preset to define the plugins (https://github.com/exponentjs/babel-preset-react-native).
This allows for a much better user experience for those who want (or need) to override options in their project's `.babelrc`.
Prior to this PR, if a user wanted to use a custom babel-plugin (or a custom set of babel plugins), they'd have either 1) manually override the `.babelrc` in the react-packager directory (or fork RN), or 2) specify a custom transformer to use when running the packager that loaded their own `.babelrc`. Note - the custom transformer was necessary because without it, RN's `.babelrc` options would supersede the options defined in the project's `.babelrc`...potentially causing issues with plugin ordering.
This PR makes the transformer check for the existence of a project-level `.babelrc`, and if it it's there, it _doesn't_ use the react-native `.babelrc`. This prevents any oddities with Babel plug
Closes https://github.com/facebook/react-native/pull/5214
Reviewed By: davidaurelio
Differential Revision: D2881814
Pulled By: martinbigio
fb-gh-sync-id: 4168144b7a365fae62bbeed094d8a03a48b4798c
Summary:
I started working on improving the `StatusBar` API and make it work on Android. I added support for `setColor`, `setTranslucent` (the status bar is still visible but the app can draw under) and `setHidden` on Android. Looking for feedback on how to improve the API before I put more time on this :).
Right now I went for a cross platform API and functions that don't exist on a platform are just a no-op but I'm not sure it is the best choice since at the moment what is supported is very different between both platforms. I was wondering what you guys think and if it would be better off as 2 different modules.
It is also possible to port some of the features I added for Android to iOS even if there is no 'standard' way to do it. Like `setColor` could be implemented by drawing a colored view under the status bar and translucent by adding/removing some padding.
Closes https://github.com/facebook/react-native/pull/5360
Reviewed By: svcscm
Differential Revision: D2840417
Pulled By: nicklockwood
fb-gh-sync-id: 5c8d988bccf8035341f0efe27e54dd8402c18d24
Summary:
public
This adds support to set the highlight color on TextInput on Android. See https://github.com/facebook/react-native/pull/5678 for the iOS implementation.
Note : We will merge these two properties with one name 'selectionColor' in a follow on diff, and may move it to a style.
Reviewed By: nicklockwood
Differential Revision: D2895253
fb-gh-sync-id: 6f2c08c812ff0028973185356a8af285f7dd7969
Summary:
The bug occurs for the cases when there is a nested view structure of at least two views with removeClippedSubvews enabled and with a "collapsable" view in between them that migrates from the collapsed state to non-collapsed state.
What happens in that case is that the "inner" view with "removeClippsedSubviews" gets reattached to a new parent, but we never update it's clipping rect because the update is currently only triggered for the size change (and for scroll change in case of scrollview). In the case when the view was doing some "clipping" when attached to its previous parent it needs to update its "clipping" status because the parent has change and clipping rect is calculated based on the parent clipping rect (see `ReactClippingViewGroupHelper#calculateClippingRect`).
This change triggers `updateClippingRect` when the view is attached to the window, which covers the case when it's reattached from one parent to the other.
Closes https://github.com/facebook/react-native/pull/5692
Reviewed By: svcscm
Differential Revision: D2893304
Pulled By: foghina
fb-gh-sync-id: a94ab3674adf9e496fc86dca5a430a91117f2c83
Summary:
This error occurs primarily when starting the app and the packager is not running.
`source` can be null when the evaluated code does not come from a source file so it just crashes with a SIGSEGV when passing it to `String::adopt`. This restores the beloved 'Can't find variable __fbBatchedBridge' redbox error :)
Seems to be introduced in 17e1ceb543.
cc davidaurelio
Closes https://github.com/facebook/react-native/pull/5689
Reviewed By: svcscm
Differential Revision: D2890634
Pulled By: astreet
fb-gh-sync-id: b96bbe8e26c9ac580b1aa17222d2f59376832560
Summary:
Original Android's refreshControl in ScrollView is tightly coupled with AndroidSwipeRefreshLayout. If someone use `ref=` for RefreshControl in ScrollView, it does nothing since RefreshControl in Android return null.
This change allows customized RefreshControl especially for `ref=` as well as making ScrollView's code clearer.
Closes https://github.com/facebook/react-native/pull/5623
Reviewed By: svcscm
Differential Revision: D2890072
Pulled By: nicklockwood
fb-gh-sync-id: a8fc7746bcc050a6e46fedf3583979f4cb9021b6
Summary:
public
This diff fixes two issues:
1) Makes it so that when a keyboard is displayed, all keys in that keyboard actually can be set as text. Previously you could display a Numeric keyboard and it would only allow entering numbers despite the keyboard having other keys like comma, plus, space, etc.
a) This also allows any key entered on a physical keyboard to go through to the view even if not present on the Soft Input keyboard
2) Makes more robust our Filter setting in setMaxLength so that we only affect the InputFilter.LengthFilter if present instead of all.
This works by creating a new KeyListener which will respond to getInputType as the KeyListener it is replacing (like a DigitsKeyListener for a numeric keyboard) but allow all characters when actually entering text.
Reviewed By: andreicoman11
Differential Revision: D2880851
fb-gh-sync-id: fa5eb549a849d8f30c592d7eac48054ca6a75544
Summary:
public
https://github.com/facebook/react-native/pull/5494 added a new `source` property to WebView on Android that provides a better API, as well as allowing for request headers to be set.
This diff ports that functionality over to iOS, so we can have a consistent API cross-platform.
I've also extended the API to include `method` (GET or POST) and `body` when setting the WebView content with a URI, and `baseUrl` when setting static HTML.
Reviewed By: javache
Differential Revision: D2884643
fb-gh-sync-id: 83f24494bdbb4e1408aa8f3b7428fee33888ae3a
Summary:
Related to [issue #5418](https://github.com/facebook/react-native/issues/5418)
This is a follow-up to [this previous pull request.](https://github.com/facebook/react-native/pull/5419)
~~Adds a new ReactProp 'urlWithHeaders' to Android WebViews that takes an object with a 'url' string and a 'headers' map.~~
[Update] Adds a new prop 'source' to Android WebViews
```
{
html: string,
url: string,
headers: map<string, string>,
}
```
Update: resolves TODO 8495359
Closes https://github.com/facebook/react-native/pull/5494
Reviewed By: svcscm
Differential Revision: D2881313
Pulled By: nicklockwood
fb-gh-sync-id: 7cad8490d4932d0a7ef559165f3ec279d873c537
Summary:
public
We recently updated the `ScrollResponder.scrollResponderScrollTo` method to accept an `animated` argument, and deprecated the `scrollResponderScrollWithoutAnimationTo` method. This change was reflected in the native iOS implementation, but not on Android.
This diff updates the Android ScrollViewManager implementation to match the JS API, and removes the platform-specific fork in the JS code.
Reviewed By: dmmiller
Differential Revision: D2883515
fb-gh-sync-id: e5a0e1cf470e21af837b2311cf1048162ac3aff5