Commit Graph

11978 Commits

Author SHA1 Message Date
Chris Lewis a43a988128 Document Android native communication
Summary:
Native communication is documented for iOS but not Android. Typically pages in Guides (IOS) and Guides (Android) share a common structure/content but provide language specific examples.

I followed this pattern with the Android native communication documentation. It is missing some content that the iOS documentation contains, such as the layout computation flow. But provides a solid base for future efforts.

Ran local instance of React Native website. Went to http://localhost:8079 and read through the new page (react-native/docs/communication-android.html). Also tested links two/from the page.

As a result of this link testing, I updated the Native Modules Android documentation to link to the Apple TV documentation, as it is now the previous page on the navigation sidebar.
Closes https://github.com/facebook/react-native/pull/14316

Differential Revision: D5865137

Pulled By: hramos

fbshipit-source-id: 10ec7d2b08667e70bc38576ecc56da457859e8b1
2017-09-19 14:16:41 -07:00
Aaron Chiu 12f123d3e4 add JS->Java Bridge traffic
Reviewed By: achen1

Differential Revision: D5740501

fbshipit-source-id: 3a88cd95d3a58aac24968e577f4eb3096d47d4ec
2017-09-19 12:03:15 -07:00
Dmitry Zakharov 4fc9e20fce Untangle NativeAnimatedNodesManager from UIManager internals.
Reviewed By: AaaChiuuu

Differential Revision: D5861523

fbshipit-source-id: 39eb79b91d4d5e2295d03369f1be585ae7836c75
2017-09-19 10:00:52 -07:00
David Vacca 5180995666 Fix setBackground for Android sdk version 15 and below
Reviewed By: achen1

Differential Revision: D5854430

fbshipit-source-id: 1276f3d7e94b757f9a9dd412a2ef8b72e8427ffb
2017-09-19 09:39:45 -07:00
Kang Zhang 87a1dc4b76 rename catalyst animations
Reviewed By: achen1

Differential Revision: D5855613

fbshipit-source-id: 2eac7ba6a9d95f6cd3a58a1df4ec0b170f34d6ed
2017-09-19 07:33:42 -07:00
Alex Dvornikov 01bcbd44e7 Unbreak ReactLegacy project
Reviewed By: shergin

Differential Revision: D5854859

fbshipit-source-id: 96d4ced9f5481ae1df8741f9d09da4bc939e8ed8
2017-09-19 03:30:05 -07:00
Brian Vaughn ccddbf82d7 Fixed runtime error with ProgressBarAndroid
Reviewed By: yungsters

Differential Revision: D5857305

fbshipit-source-id: 2fc20a848fa4dce5c1ac3fb7e986536618e25548
2017-09-19 00:01:00 -07:00
Tomas Reimers 9e373529f3 Backed out D5792012.
Reviewed By: AaaChiuuu

Differential Revision: D5855139

fbshipit-source-id: 3837769a4da90d9752de75669c6395fabcd3b18b
2017-09-18 21:37:54 -07:00
Max Sherman e764361f93 Add getter for JS Executor Factory
Reviewed By: mhorowitz

Differential Revision: D5857012

fbshipit-source-id: 8c9fc0095c512325968234f48d6728b63d61913d
2017-09-18 21:18:24 -07:00
Michał Gregorczyk 0ee502d125 More useful utilities in jschelpers
Reviewed By: mhorowitz

Differential Revision: D5785204

fbshipit-source-id: 4c5240f24c6a69bb781896d3af32d4d16fc2387c
2017-09-18 18:45:27 -07:00
Michał Gregorczyk d6c519bc96 Base class for all object private data passed to JSC
Reviewed By: amnn

Differential Revision: D5761937

fbshipit-source-id: de88cf8b959fc855c3c0786f817bb6032491c819
2017-09-18 18:45:27 -07:00
Brian Vaughn 8bf8b21613 React sync for revisions abce30f...b5ac963
Reviewed By: sophiebits

Differential Revision: D5853012

fbshipit-source-id: d0ebf12d2c801dc3e232fe18f9cc25e477812350
2017-09-18 16:45:26 -07:00
Valentin Shergin 9d9e250d28 Using `indexOfObjectIdenticalTo` instead of `indexOfObject` in RCTUIManager
Summary:
This should be much more performant (and it better illustrates the intension of the code).
The fix was suggested by Adlai-Holler.

Reviewed By: mmmulani

Differential Revision: D5851595

fbshipit-source-id: 45d172a5fa796549c6dcea8f35c5cbb2a4c2d2e0
2017-09-18 15:46:11 -07:00
Valentin Shergin d7f6208649 Fixing clowntown in RCTUIManager
Reviewed By: mmmulani

Differential Revision: D5851596

fbshipit-source-id: 952dc8af4ee2af4522725873187b6281b62642cc
2017-09-18 15:46:11 -07:00
Valentin Shergin 38c8b6dd42 Using mutex inside RCTUIManagerObserverCoordinator instead of GCD
Reviewed By: javache

Differential Revision: D5843832

fbshipit-source-id: f4051755a5de83431f8bed1b765b5d8118b5ab88
2017-09-18 13:46:10 -07:00
Paco Estevez Garcia 6b733a4fe7 Force local builds to use regular JS bundles
Reviewed By: dcaspi

Differential Revision: D5824552

fbshipit-source-id: a435fc0ad5b43a8bd3c6a873a4147c4d92190f4e
2017-09-18 08:00:33 -07:00
Alex Dvornikov 6e281798e8 Refactored executeApplicationScript in RCTCxxBridge
Reviewed By: dcaspi

Differential Revision: D5850957

fbshipit-source-id: d2cacfd99fd7ffca70b0dcf0bf252ea160268c05
2017-09-18 06:45:38 -07:00
Ori Harel 795370789b re #15915 HeadlessJsTaskService is expected to run on UI thread
Summary:
<!--
Thank you for sending the PR! We appreciate you spending the time to work on these changes.

Help us understand your motivation by explaining why you decided to make this change.

You can learn more about contributing to React Native here: http://facebook.github.io/react-native/docs/contributing.html

Happy contributing!

-->

Headless tasks are required to run in the main thread, however due to the nature of the React context creation flow, the handler may be returned outside of the main thread, causing the HeadlessJsTaskContext to throw an exception.

Swipe out the app. send push notification from a server that starts a HeadlessJsTaskService
Closes https://github.com/facebook/react-native/pull/15940

Differential Revision: D5852448

Pulled By: foghina

fbshipit-source-id: 54c58a1eb7434dd5de5c39c28f6e068ed15ead9d
2017-09-18 05:30:50 -07:00
Andrew Hansen df8d0d1db9 use `uniqBy` for iteratee support
Summary:
I noticed `uniq` does not take a second parameter the way it's being used here. I think the function what was intended is [uniqBy](https://lodash.com/docs/4.17.4#uniqBy)
Closes https://github.com/facebook/react-native/pull/15615

Differential Revision: D5852155

Pulled By: hramos

fbshipit-source-id: 892d0bf7f24d30c24620350f698ffb416907ccc5
2017-09-18 02:45:32 -07:00
Valentin Shergin 7efd4fabfd Text to Spannable conversion is now using PRIORITY flag to enforce the order of spans
Summary:
When we convert nested <Text> components to Spannable object we must enforce the order of spans somehow,
otherwise we will have Spannable object with unpredictable order of spans, which will produce unpredictalbe text layout.
We can do it only using `Spannable.SPAN_PRIORITY` feature because Spannable objects do not maintain the order of spans internally.

We also have to fix this to implement autoexpandable <TextInput>.

Reviewed By: achen1

Differential Revision: D5811172

fbshipit-source-id: 5bc68b869e58aba27d6986581af9fe3343d116a7
2017-09-17 22:00:16 -07:00
Valentin Shergin 3ff463f6a0 BREAKING: Removed support of nested content inside <Image> on Android
Summary: Use <ImageBackground> instead.

Reviewed By: yungsters

Differential Revision: D5190170

fbshipit-source-id: 29acf99db9a31351dbfe8eeefa61abd439f8618c
2017-09-17 21:34:28 -07:00
Brian Vaughn d1372faeb5 Re-added global event-type Map to UIManager constants
Reviewed By: sophiebits

Differential Revision: D5846806

fbshipit-source-id: 7b0a54bd5a4b877f0c5915f11392ee0d34718dbe
2017-09-15 16:47:16 -07:00
Brian Vaughn 11b40845b0 Added Flow types for React Native host components
Reviewed By: calebmer

Differential Revision: D5844473

fbshipit-source-id: 2893e5a5ee58d147a2f7d351143a7ce0eb8eebe3
2017-09-15 16:22:04 -07:00
Oleksandr Sokolov 2cb87dfacd Bump react/jsx-no-undef (undefined require) from warning to error
Reviewed By: weicool

Differential Revision: D5843154

fbshipit-source-id: 0729cb19e3b3664a235320e908af51b2f56cc4ae
2017-09-15 12:01:04 -07:00
Mingwei Pan d0f36d7a68 Zero out all fields in YGZeroOutLayoutRecursivly using memset
Reviewed By: emilsjolander

Differential Revision: D5842351

fbshipit-source-id: d2c2b6f829588a200525b7ccbdb63003cb4dcc4e
2017-09-15 08:34:26 -07:00
Kathy Gray cf2ef84b16 Move destroy threads in catalystinstance off the UI thread
Reviewed By: cwdick

Differential Revision: D5842135

fbshipit-source-id: e9c44c4129d4d10da8781798df121f5c676766f8
2017-09-15 05:48:57 -07:00
Christoph Nakazawa 2f78d19df2 Use the Config type from Metro
Reviewed By: davidaurelio

Differential Revision: D5832633

fbshipit-source-id: 8e4e0e6a2907e485a5627c87161af2d0672b4f56
2017-09-15 05:00:10 -07:00
Christoph Nakazawa 327a0dd84e Bump metro-bundler dependency to 0.17
Reviewed By: davidaurelio

Differential Revision: D5834180

fbshipit-source-id: 121efc7000bff7aff121d44e6b0b8eed1d4e81ae
2017-09-14 22:16:30 -07:00
Brian Vaughn 75c94a8907 Native view manager event types exposed to JS via view config
Differential Revision: D5814210

fbshipit-source-id: 41291f0d6b39af77f66173f6a699d88f9f4ccc74
2017-09-14 18:17:17 -07:00
Brian Vaughn e9780bdc0f ReactNative sync (c3718c4...abce30f): the one about the Prepack optimizations
Reviewed By: sophiebits

Differential Revision: D5626312

fbshipit-source-id: f8158ccb14f991b681fba34fb23933042266939d
2017-09-14 18:17:17 -07:00
Aaron Chiu 6c2c2ecd8c add some RN Core markers
Reviewed By: achen1

Differential Revision: D5740438

fbshipit-source-id: eca6160e0ff9089e1f70ead0f2269ce152258c19
2017-09-14 12:02:29 -07:00
Ben Roth 7fab093fc8 Fix crash when trying to load photo library assets with nil image url
Summary:
This avoids a crash when we try to load a PHAsset with nil image url. Specifically, the following condition evaluates to true when `imageURL` is nil:

```objc
if ([imageURL.scheme caseInsensitiveCompare:@"assets-library"] == NSOrderedSame) {
    assetID = [imageURL absoluteString];
    results = [PHAsset fetchAssetsWithALAssetURLs:@[imageURL] options:nil];
}
```

The crash will be "attempt to insert nil object from objects[0]" when we build the `@[imageURL]` array literal.

We've seen this emerge as a very common crash among Expo users, so I wanted to at least provide a clear error message instead of terminating the app.

Load an image from the photo library with a nil request url.
Closes https://github.com/facebook/react-native/pull/15952

Differential Revision: D5835219

Pulled By: ericnakagawa

fbshipit-source-id: 7be00a15e674a0905cf5c27c526ce9085d1b308f
2017-09-14 12:02:27 -07:00
Ramanpreet Nara adb6646016 Make <TextInput multiline> default blurOnSubmit to false.
Reviewed By: achen1

Differential Revision: D5830633

fbshipit-source-id: 3d0880656f14cfafa0f15c4341021799f20f40ed
2017-09-14 11:30:58 -07:00
Rafael Oleza f568090ae2 Upgrade babel-plugin-react-transform to v3.x
Summary: babel-plugin-react-transform@3 includes support for HMR on `React.PureComponent`: https://github.com/gaearon/babel-plugin-react-transform/pull/106

Reviewed By: davidaurelio

Differential Revision: D5814322

fbshipit-source-id: 36e83ffa00f9d4ff079665aec1e8341725811a8e
2017-09-14 07:36:43 -07:00
Adam Miskiewicz 39f83c4a12 Refactor how symlinks are discovered in local-cli, support scoped modules
Summary:
This PR refactors the symlink finding logic in local-cli in order to support nested symlinked modules as well as symlinked scoped NPM modules.

Run tests, or try project with `npm link`'ed or `yarn link`'ed dependencies.
Closes https://github.com/facebook/react-native/pull/15776

Reviewed By: cpojer

Differential Revision: D5823008

Pulled By: jeanlauliac

fbshipit-source-id: f2daeceef37bed2f8a136a0a5918730f9832884c
2017-09-14 04:31:57 -07:00
Kellie Medlin e846a9f82f Fix build errors exposed by building against clang 5.0
Reviewed By: rachit-siamwalla

Differential Revision: D5828898

fbshipit-source-id: 23fa587bcd1d1b6c612cc816f1aa7b03da0c187d
2017-09-14 00:35:02 -07:00
Mehdi Mulani e8c83d180f Access AppState constants on main thread
Summary:
iOS 11 now requires this to be accessed on the main thread.
I think this is causing tests to fail, as the Main Thread Checker is turned on there.

Reviewed By: javache

Differential Revision: D5826570

fbshipit-source-id: 6acb7174c756a2ad657602f14c666f71b1ee8fe9
2017-09-13 18:15:39 -07:00
Tomas Reimers ae1a4f08f6 Allow data lists to include 0 or '' (falsey items)
Summary:
Fixing https://github.com/facebook/react-native/issues/13578

<!--
Thank you for sending the PR! We appreciate you spending the time to work on these changes.

Help us understand your motivation by explaining why you decided to make this change.

You can learn more about contributing to React Native here: http://facebook.github.io/react-native/docs/contributing.html

Happy contributing!

-->

(Write your motivation here.)

(Write your test plan here. If you changed any code, please provide us with clear instructions on how you verified your changes work. Bonus points for screenshots and videos!)
Closes https://github.com/facebook/react-native/pull/15419

Reviewed By: sahrens

Differential Revision: D5795844

Pulled By: tomasreimers

fbshipit-source-id: 4cdf97a2f5e83e38f4e12af771b512e7dddd212a
2017-09-13 17:33:03 -07:00
Valentin Shergin a17797940d Fixed issue with remeasuring ReactTextShadowNode
Summary:
This fixes the regression recently introduced during refactoring of text-related classes.
So, added fragment of code was lost in D5715830.
See how it looked before:
9f5bdd7b49/ReactAndroid/src/main/java/com/facebook/react/views/text/ReactTextShadowNode.java (L424-L431)

Reviewed By: TheSavior

Differential Revision: D5827424

fbshipit-source-id: 5df99620057ff6a27105dd05903c7f5def85c5d2
2017-09-13 14:33:59 -07:00
Christoph Nakazawa 2259538085 Upgrade yargs to 9.0.0
Reviewed By: yungsters, TheSavior

Differential Revision: D5813153

fbshipit-source-id: f086e1fc5ea3d6fd9e6aa5fbd150d1ae9787cced
2017-09-13 00:38:22 -07:00
Stepan Hruda 9731b58879 Add missing Contents.json, delete files that shouldn't be in .xcassets
Reviewed By: dinhviethoa

Differential Revision: D5802851

fbshipit-source-id: 78e4b375bd0a0ed48d30bfb7fc746de6a2bd999e
2017-09-12 22:45:33 -07:00
nicehacker fa1b533c56 Add Example for TouchableOpacity.js
Summary:
<!--
Thank you for sending the PR! We appreciate you spending the time to work on these changes.

Help us understand your motivation by explaining why you decided to make this change.

You can learn more about contributing to React Native here: http://facebook.github.io/react-native/docs/contributing.html

Happy contributing!

-->

Adding example with [react-native-web-player](https://github.com/dabbott/react-native-web-player)

Screenshot on http://localhost:8079/react-native/docs/touchableopacity.html
![react-native-touchableopacity](https://user-images.githubusercontent.com/13135332/30335218-bd32fb0e-9807-11e7-976d-5235402fdba8.png)
Closes https://github.com/facebook/react-native/pull/15911

Differential Revision: D5817180

Pulled By: TheSavior

fbshipit-source-id: 6399a53dabf8e3f0cf680aeb41d8afbaa2ce11e8
2017-09-12 20:32:07 -07:00
Tomas Reimers cbb0ccb185 mActivelyScrolling expected to be true so long as events are being fired.
Summary:
**Problem:**

It was observed that in [this code path](https://github.com/facebook/react-native/blob/master/ReactAndroid/src/main/java/com/facebook/react/views/scroll/ReactHorizontalScrollView.java#L292) (i.e. horizontal, paging-enabled scroll view) if you tried to programmatically call the scrollTo method within ~1s of the onMomentumScrollEnd event (which should only be called after all scrolling has ended), the scrollView would scroll to the new location, and then scroll BACK to the original location.

For example, assume you had released the scrollView at location B, and the nearest page boundary is A. Then, 1000ms later, you call scrollTo position C. The order of operations would be:

1. Begin scrolling to A from position B (as it is the nearest page boundary)
2. Reach position A
3. Fire onMomentumScrollEnd
4. 1000ms later call scrollTo C
5. scrollView scrolls to C
6. scrollView scrolls BACK to position A (for no apparent reason).

**Reason:**

I suspect this is because the [smoothlyScrollTo](https://github.com/facebook/react-native/blob/master/ReactAndroid/src/main/java/com/facebook/react/views/scroll/ReactHorizontalScrollView.java#L292) will continue to animate towards A, but the [scrollEvents will not fire](f954f3d9b6/ReactAndroid/src/main/java/com/facebook/react/views/scroll/OnScrollDispatchHelper.java (L45)) as they are too close to each other. So the true order of events is:

1. Begin scrolling to A from position B (as it is the nearest page boundary)

[begin smoothlyScrollTo]
[scroll towards position A]
[mActivelyScrolling is true]

2. Reach position A

[mActivelyScrolling is true]
[scroll towards position A]
[mActivelyScrolling is false, as there is another scrollEvent, but because it is close enough to the same location it is ignored]

3. Fire onMomentumScrollEnd
4. 1000ms later call scrollTo C

[scroll towards position C]

5. scrollView scrolls to C

[scroll towards position A as the original smoothlyScrollTo animation was never completed]

6. scrollView scrolls BACK to position A.

This is an untested hypothesis, but seems to explain the behavior, and the solution is more semantically correct anyway. If there is an easy way to rebuild the android binaries happy to test it myself! Just let me know!

**Solution:**

 Move the mActivelyAnimating outside the mOnScrollDispatchHelper.onScrollChanged helper, because the HorizontalScrollView event should be considered to be animating so long as onScrollChanged events are being fired.
Closes https://github.com/facebook/react-native/pull/15146

Reviewed By: AaaChiuuu

Differential Revision: D5792026

Pulled By: tomasreimers

fbshipit-source-id: 9654fda038d4a687cc32f4c32dc312baa34627ed
2017-09-12 18:30:39 -07:00
Chris Zheng 17126641b1 Removing fallback source URL from JS bridge
Summary:
Remove fallback logic.
It is hard to test whether a bundle is good or bad on device, since it does the fallback, remove the fallback logic now.

Reviewed By: javache

Differential Revision: D5773542

fbshipit-source-id: 8bb4fdad4c5761ccce915f9f1c2577464e8d37d8
2017-09-12 15:54:59 -07:00
Tomas Reimers 718f4e60c2 Remove 'box-only' as a layoutOnlyProp
Summary:
Currently, having the property `pointerEvents={'box-only'}` marks a view as layoutOnly. For optimization reasons, layoutOnly nodes are [not added to the node hierarchy](b103903ec8/ReactAndroid/src/main/java/com/facebook/react/uimanager/NativeViewHierarchyOptimizer.java (L99)) The problem is that should this box ever need to be [transitioned to not-layout-only](b103903ec8/ReactAndroid/src/main/java/com/facebook/react/uimanager/NativeViewHierarchyOptimizer.java (L394)) (for example, because you add the a CSS transform property),  it must be added to the hierarchy. To add it to the hierarchy the [React Styles Diff Map](b103903ec8/ReactAndroid/src/main/java/com/facebook/react/uimanager/NativeViewHierarchyOptimizer.java (L396)) is passed along with the backing shadowNode to create the node. The problem is that at no point were the original `pointerEvents` and so the new node will be created with `pointerEvents =  'auto'`.

A more correct fix to this problem might be to have shadowNodes carry around their pointerEvents, although this is likely a greater design decision which is why am I proposing the quick fix now.

Will also resolve: https://github.com/react-native-community/react-native-modal/issues/11
Closes https://github.com/facebook/react-native/pull/15529

Reviewed By: AaaChiuuu

Differential Revision: D5792012

Pulled By: tomasreimers

fbshipit-source-id: 625242c53e16cb293c64811a57f6c3905b3483e0
2017-09-12 14:21:11 -07:00
Ian Hill 3ceb20de74 Minor documentation correction for exposing native iOS components
Summary:
Minor documentation correction for the native components iOS API section.

Before: "Sometimes your native component will have some special properties that you don't want to them to be part of the API"

After: "Sometimes your native component will have some special properties that you don't want to be part of the API"

Confirm section renders correctly via markdown.
Closes https://github.com/facebook/react-native/pull/15914

Reviewed By: TheSavior

Differential Revision: D5817146

Pulled By: buymeasoda

fbshipit-source-id: 075441cf7f5f23a4ca512bae48ca8fc319762b1e
2017-09-12 13:51:55 -07:00
Joshua Alvarado 915a020fca Proper support of the accessibilityLabel for <Text> components on iOS
Summary:
**PR changes**
The RCTText class originally overrode the accessibilityLabel and returned the raw text of the class ignoring if the accessibilityLabel was set explicitly in code.
Example:
  <Text accessibilityLabel="Example"> Hello World </Text> // returns "Hello World" instead of "Example" for the accessibility label

My update checks if the super's accessibilityLabel is not nil and returns the value else it returns the raw text itself as a default to mirror what a UIKit's UILabel does. The super's accessibilityLabel is nil if the accessibilityLabel is not ever set in code. I don't check the length of the label because if the value was set to an empty purposely then it will respect that and return whatever was set in code.
With the new changes:
  <Text accessibilityLabel="Example"> Hello World </Text> // returns "Example" for the accessibilityLabel

This change doesn't support nested <Text> components with both accessibilityLabel's value set respectively. The parent's value will return.
Example:

  // returns "Example" instead of "Example Test" for the accessibility label
  <Text accessibilityLabel="Example">
    Hello
    <Text accessibilityLabel="Test">
      World
    </Text>
  </Text>

The workaround is just to set the only the parent view's accessibilityLabel with the label desired for it and all its nested views or just not nest the views if possible.
I believe a bigger change would be needed to support accessibility for nested views, for now the changes I have made should satisfy the requirements.

Reviewed By: shergin

Differential Revision: D5806097

fbshipit-source-id: aef2d7cec4657317fcd7dd557448905e4b767f1a
2017-09-12 12:53:59 -07:00
James Ide f6a188aa48 Use Node 8 instead of 7 in Travis CI
Summary:
Node 8 is stable and newer and also gives us test coverage for npm 5, which is probably better to use for the E2E tests.
Closes https://github.com/facebook/react-native/pull/15904

Differential Revision: D5814784

Pulled By: hramos

fbshipit-source-id: 5b57293e804e1626fd20c200ed54c7210a6ad915
2017-09-12 10:15:58 -07:00
Maarten Schumacher 274e407ad1 Flow type: saveToCameraRoll returns a string
Summary:
Updates the flow typing to return Promise\<string\> instead of Promise\<Object\>. To validate that it actually does return a string, see 6493a85754/Libraries/CameraRoll/RCTCameraRollManager.m (L98) and 6493a85754/Libraries/CameraRoll/RCTCameraRollManager.m (L116)
Closes https://github.com/facebook/react-native/pull/15631

Differential Revision: D5714842

Pulled By: shergin

fbshipit-source-id: fb141b014c262bc4fb44419515e56bbe0641d8bf
2017-09-12 10:01:11 -07:00
Anton Semenov 0c5b390178 Fix error in flow types
Summary:
Previously type Options had excludeActivityTypes property, but in RCTActionSheetManager.m and docs this property is named excludedActivityTypes.

<!--
Thank you for sending the PR! We appreciate you spending the time to work on these changes.

Help us understand your motivation by explaining why you decided to make this change.

You can learn more about contributing to React Native here: http://facebook.github.io/react-native/docs/contributing.html

Happy contributing!

-->

Want to fix error in flow types

Actually, it seems there aren't any need for test plan for this PR. Just fix a mistyping error.
Closes https://github.com/facebook/react-native/pull/15881

Differential Revision: D5813539

Pulled By: ericnakagawa

fbshipit-source-id: 7d1269d4c177f920869bf6554f14af6db7a741ee
2017-09-12 05:50:26 -07:00