Summary:
This PR adds support for Animated tracking to Animated Native Driver implementation on Android and iOS.
Animated tracking allows for animation to be started with a "dynamic" end value. Instead of passing a fixed number as end value we can pass a reference to another Animated.Value. Then when that value changes, the animation will be reconfigured to drive the animation to the new destination point. What is important is that animation will keep its state in the process of updating "toValue". That is if it is a spring animation and the end value changes while the previous animation still hasn't settled the new animation will start from the current position and will inherit current velocity. This makes end value transitions very smooth.
Animated tracking is available in JS implementation of Animated library but not in the native implementation. Therefore until now, it wasn't possible to utilize native driver when using animated tracking. Offloading animation from JS thread turns out to be crucial for gesture driven animations. This PR is a step forward towards feature parity between JS and native implementations of Animated.
Here is a link to example video that shows how tracking can be used to implement chat heads effect: https://twitter.com/kzzzf/status/958362032650244101
In addition this PR fixes an issue with frames animation driver on Android that because of rounding issues was taking one extra frame to start. Because of that change I had to update a number of Android unit tests that were relying on that behavior and running that one additional animation step prior to performing checks.
As a part of this PR I'm adding three unit tests for each of the platforms that verifies most important aspects of this implementation. Please refer to the code and look at the test cases top level comments to learn what they do.
I'm also adding a section to "Native Animated Example" screen in RNTester app that provides a test case for tracking. In the example we have blue square that fallows the red line drawn on screen. Line uses Animated.Value for it's position while square is connected via tracking spring animation to that value. So it is ought to follow the line. When user taps in the area surrounding the button new position for the red line is selected at random and the value updates. Then we can watch blue screen animate to that position.
You can also refer to this video that I use to demonstrate how tracking can be linked with native gesture events using react-native-gesture-handler lib: https://twitter.com/kzzzf/status/958362032650244101
[GENERAL][FEATURE][Native Animated] - Added support for animated tracking to native driver. Now you can use `useNativeDriver` flag with animations that track other Animated.Values
Closes https://github.com/facebook/react-native/pull/17896
Differential Revision: D6974170
Pulled By: hramos
fbshipit-source-id: 50e918b36ee10f80c1deb866c955661d4cc2619b
Summary:
A demo illustrated `base-line` metric exposure to layout system was added to RNTester.
And currently it shows that we don't support it at all.
https://cl.ly/1F0B0D430U3e
Reviewed By: sahrens
Differential Revision: D6957056
fbshipit-source-id: 28776300fc8e11950ac5ba1a5416f68d31d4e9fb
Summary:
Signed-off-by: Evan J Brunner <ej3@appitto.me>
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Motivation can be found in #17899
This `RNTester/js/http_test_server.js` is part of a internal websocket test suite / devtool.
Can be tested with `curl -D - localhost:5556` observing that the `Set-Cookie: wstest=OK; Path=\` header is present, and the service throws no exceptions.. etc
[INTERNAL][MINOR][./RNTester/js/http_test_server.js] - fixed set cookie with connect framework
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CATEGORY
[----------] TYPE
[ CLI ] [-------------] LOCATION
[ DOCS ] [ BREAKING ] [-------------]
[ GENERAL ] [ BUGFIX ] [-{Component}-]
[ INTERNAL ] [ ENHANCEMENT ] [ {File} ]
[ IOS ] [ FEATURE ] [ {Directory} ] |-----------|
[ ANDROID ] [ MINOR ] [ {Framework} ] - | {Message} |
[----------] [-------------] [-------------] |-----------|
[CATEGORY] [TYPE] [LOCATION] - MESSAGE
EXAMPLES:
[IOS] [BREAKING] [FlatList] - Change a thing that breaks other things
[ANDROID] [BUGFIX] [TextInput] - Did a thing to TextInput
[CLI] [FEATURE] [local-cli/info/info.js] - CLI easier to do things with
[DOCS] [BUGFIX] [GettingStarted.md] - Accidentally a thing/word
[GENERAL] [ENHANCEMENT] [Yoga] - Added new yoga thing/position
[INTERNAL] [FEATURE] [./scripts] - Added thing to script that nobody will see
-->
Closes https://github.com/facebook/react-native/pull/17900
Differential Revision: D6977087
Pulled By: hramos
fbshipit-source-id: af6205343fccf69c57e0c26a85a5b04d61288a23
Summary:
`<Image resizeMode="center">` already works on iOS (implemented in #8792), but is neither tested nor documented the way the other `resizeMode` values are.
This PR primarily enables the relevant RNTester case on iOS, and secondarily copies over the doc comment from `Image.android.js` to `Image.ios.js`. A PR to `react-native-website` will follow shortly and it is there I will try and revise the wording a bit.
Updated RNTester screenshot (iOS):
<img src=https://user-images.githubusercontent.com/2246565/35470720-44b38282-0357-11e8-941c-1b3c5a1b2f3b.png width=300>
react-native-website PR coming soon.
[IOS] [MINOR] [Image] - Include resizeMode=center in RNTester
Closes https://github.com/facebook/react-native/pull/17759
Differential Revision: D6829051
Pulled By: hramos
fbshipit-source-id: c6e0000a75765e8bf3a1d0306aaafad002b14a58
Summary:
This is a complete rewrite of RCTText, the part of React Native which manages Text and TextInput components.
Key points:
* It's understandable now. It follows a simple architectural pattern, and it's easy to debug and iterate. Text flow layout is a first-class citizen in React Native layout system now, not just a wired special case. It also brings entirely new possibilities such as nested interleaving <Text> and <View> components.
* All <Text>-specific APIs were removed from UIManager and co (it's about ~16 public methods which were used exclusively only by <Text>).
* It relies on new Yoga measurement/cloning API and on-dirty handler. So, it removes built-in dirty propagation subsystem from RN completely.
* It caches string fragments properly and granularly on a per-node basis which makes updating text-containing components more performant.
* It does not instantiate UIView for virtual components which reduces memory utilization.
* It drastically improves <TextInput> capabilities (e.g. rich text inside single line <TextInput> is now supported).
Screenshots:
https://cl.ly/2j3r1V0L0324https://cl.ly/3N2V3C3d3q3R
Reviewed By: mmmulani
Differential Revision: D6617326
fbshipit-source-id: 35d4d81b35c9870e9557d0211c0e934e6072a41e
Summary:
Builds off of cae7179c94
- Make the prop a dictionary for more configuration options
- Rename `maintainPositionAtOrBeyondIndex` -> `maintainVisibleContentPosition` + `minIndexForVisible`
- Add autoscroll threshold feature
Given the async native of RN JS and background layout, there is no way to trigger the scrollTo from JS without risking a delay, so we add the feature in native code.
== Test Plan ==
ScrollViewExample:
https://youtu.be/pmY8pxC9PRs
Reviewed By: shergin
Differential Revision: D6729160
fbshipit-source-id: 70f9bae460ce84567857a4f696da78ce9b3b834c
Summary: Trivial. Those lines were lost during rebasing of the original commit.
Reviewed By: priteshrnandgaonkar
Differential Revision: D6717696
fbshipit-source-id: a5dce25427c8977352b3ae7ea01e546a540e0c13
Summary:
== Problem / Background ==
Most lists paginate in a single direction (standard infinite list), but some paginate in both directions. Most common example is a chat thread where new messages show up on the bottom, and old content can be loaded by scrolling up. Comment threads are another example.
Right now, adding content to the bottom of a scroll view is smooth - the content doesn't jump. But when adding to the top of the scrollview, the content gets pushed down, which is jarring (note this may appear reversed because of inverting the list which is common for chat applications).
== Approach ==
The basic idea is simple - we set a flag in JS, then for every uimanager transaction, we record which is the first eligible and visible view in the ScrollView, and compare it's new origin to the old one. If it has changed, we update the contentOffset of the ScrollView to compensate.
This is done by observing `willPerformMounting` directly (only from scrollviews that have this new property set), and then observing the prev state with prependUIBlock and making the update synchronously in addUIBlock to avoid any flicker.
There is also a way to skip views that we don't care about, like a spinner at the top of the view that we don't want to stay in place - we actually want it to get pushed up by the new content, replaced visually in the viewport.
== Notes ==
Most chat applications will probably want to do a scrollToTop when new content comes in and the user is already scrolled at or near the bottom.
This is glitchy if visible children are re-ordered, which could be fixed with additional logic, but it doesn't come up in the type of applications we're targetting here so punting on that.
== Test Plan ==
https://youtu.be/4GcqDGz9eOE
Reviewed By: shergin
Differential Revision: D6696921
fbshipit-source-id: 822e7dfcb207006cd1ba098356324ea81f619428
Summary:
This implements onKeyPress for Android on TextInputs and addresses https://github.com/facebook/react-native/issues/1882.
**N.B. that this PR has not yet addressed hardware keyboard inputs**, but doing will be fairly trivial. The main challenge was doing this for soft keyboard inputs.
I've tried to match the style as much as I could. Will happily make any suggested edits be they architectural or stylistic design (edit: and of course implementation), but hopefully this is a good first pass :).
I think important to test this on the most popular keyboard types; maybe different languages too.
I have not yet added tests to test implementation, but will be happy to do that also.
- Build & run RNTester project for Android and open TextInput.
- Enter keys into 'event handling' TextInput.
- Verify that keys you enter appear in onKeyPress below the text input
- Test with autocorrect off, on same input and validate that results are the same.
Below is a gif of PR in action.
Closes https://github.com/facebook/react-native/pull/14720
Differential Revision: D6661592
Pulled By: hramos
fbshipit-source-id: 5d53772dc2d127b002ea5fb84fa992934eb65a42
Summary:
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Viewing RNTester on my iPhone X hurts my eyes
Opened RNTester on iPhone 7/X simulators as well as my physical X and visually confirmed the header was correctly rendered:
<img width="914" alt="simulator-screenshot" src="https://user-images.githubusercontent.com/1398555/33237093-4bc932ac-d237-11e7-9238-aed8c059fd5f.png">
[IOS] [ENHANCEMENT] [RNTester] - Update iOS RNTester header to utilize SafeAreaView
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CATEGORY
[----------] TYPE
[ CLI ] [-------------] LOCATION
[ DOCS ] [ BREAKING ] [-------------]
[ GENERAL ] [ BUGFIX ] [-{Component}-]
[ INTERNAL ] [ ENHANCEMENT ] [ {File} ]
[ IOS ] [ FEATURE ] [ {Directory} ] |-----------|
[ ANDROID ] [ MINOR ] [ {Framework} ] - | {Message} |
[----------] [-------------] [-------------] |-----------|
[CATEGORY] [TYPE] [LOCATION] - MESSAGE
EXAMPLES:
[IOS] [BREAKING] [FlatList] - Change a thing that breaks other things
[ANDROID] [BUGFIX] [TextInput] - Did a thing to TextInput
[CLI] [FEATURE] [local-cli/info/info.js] - CLI easier to do things with
[DOCS] [BUGFIX] [GettingStarted.md] - Accidentally a thing/word
[GENERAL] [ENHANCEMENT] [Yoga] - Added new yoga thing/position
[INTERNAL] [FEATURE] [./scripts] - Added thing to script that nobody will see
-->
Closes https://github.com/facebook/react-native/pull/16981
Differential Revision: D6436215
Pulled By: hramos
fbshipit-source-id: 14f5361a365429e61c37b0b5e52b4adfb026bd60
Summary:
This feature was disabled for multiline textinputs in D3528202 ... seems without a good reason.
The broken autoscroll-to-cursor feature is terribly harmful and counter-intuitive in ALL cases.
I also add a contentSize tracking in the example app to make sure that it is unaffected by this change.
https://pxl.cl/9RHPhttps://github.com/facebook/react-native/issues/12799https://github.com/facebook/react-native/issues/15778
Special thanks to konradkierus!
Reviewed By: sahrens
Differential Revision: D6405985
fbshipit-source-id: 337a390a9db7b3528200ef66c4a079b87608294e
Summary:
`.sort()` will sort on the string value by default, so if you generate [18, 8], they will stay in that order. Adding comparer to ensure values are sorted numerically.
Found a bug in RNTester.
Ran RNTester and confirmed that bug could be reproduced.
[IOS][BUGFIX][RNTester] - patch test to implement desired behavior.
Closes https://github.com/facebook/react-native/pull/16871
Differential Revision: D6371550
Pulled By: shergin
fbshipit-source-id: 84866d1eb02c2be51cd15a60490604d28fa18973
Summary:
It makes possible to just specify remote url for the <Image> and it will work.
`<Image source={{uri: 'https://facebook.github.io/react/img/logo_og.png'}} />`
Reviewed By: javache
Differential Revision: D5196055
fbshipit-source-id: aaf139c4518cc35d1f4cf810bbf0305aad73a55b
Summary:
Now intrinsic content size of <Image> is implemented natively on iOS and now it is actually
`intrinsicContentSize`, not just overrided `height` and `width` styles (which was incorrect and hacky).
This change also removes support of nested content inside <Image>.
This is a first commit in the row where we improve <Image> implementation.
Reviewed By: mmmulani
Differential Revision: D5189017
fbshipit-source-id: eab3defa3d86a5d4219b4f4925ab7460b58d760f
Summary:
CI is currently failing because of a lint issue, this fixes it and a bunch of other warnings that are auto-fixable.
**Test plan**
Quick manual test, cosmetic changes only.
Closes https://github.com/facebook/react-native/pull/16229
Differential Revision: D6009748
Pulled By: TheSavior
fbshipit-source-id: cabd44fed99dd90bd0b35626492719c139c89f34
Summary:
This is workaround for blury and thick borders on iOS when specified border size does not multiplier of pixel size.
Original problem is probably related to CALayer border drawing specifics; documented as T22099662 and
https://github.com/facebook/react-native/issues/14106
Before:
https://pxl.cl/9cJ7
After:
https://pxl.cl/9cJ4
Reviewed By: javache
Differential Revision: D5999752
fbshipit-source-id: ad6d1078c6ebf7c8e0a3bc3c150525480a5a7a5c
Summary:
If you are a product developer and you need to fix your app's issues related to iPhone X limitations asap,
you can temporary use `DeviceInfo.isIPhoneX_deprecated`.
You can, but you should not. Please consider use new <SafeAreaView>.
This prop was initially named so ugly because we are trying to discourage the community to use it.
However, we understand that sometimes we need a "band-aid" to prevent our apps bleeding.
Note: This prop (DeviceInfo.isIPhoneX_deprecated) will be removed completely after 06/18.
Reviewed By: fkgozali
Differential Revision: D5946329
fbshipit-source-id: 5d6dcaf0e2d175327d59cde4b5ec2e01cd77ec70
Summary:
After this diff the intrinsic content size of <TextInput> reflects the size of text inside EditText,
it means that if there is no additional style constraints, <TextInput> will grow with containing text.
If you want to constraint minimum or maximum height, just do it via Yoga styling.
Reviewed By: achen1
Differential Revision: D5828366
fbshipit-source-id: eccd0cb4ccf724c7096c947332a64a0a1e402673
Summary:
This is required for D5874536, wherein I'll be introducing direction-aware props for borders.
When a view's border changes due to a direction update, only the frames of its children update. Therefore, only the children `UIView`s get a chance to be re-rendered. This is incorrect because the view that's had its borders changed also needs to re-render. So, I keep a track of the layout direction in a property on all shadow views. Then, when I update that prop within `applyLayoutNode`, I push shadow views into the `viewsWithNewFrames` set.
Reviewed By: mmmulani
Differential Revision: D5944488
fbshipit-source-id: 3f23e9973f3555612920703cdb6cec38e6360d2d
Summary: ... because it was recently implemented for Android.
Reviewed By: mmmulani
Differential Revision: D5916305
fbshipit-source-id: b8af0f8712e36aee5c44f7ede41da25fc944134f
Summary:
As I was working on mimicking iOS animations for my ongoing work with `react-navigation`, one task I had was to match the "push from right" animation that is common in UINavigationController.
I was able to grab the exact animation values for this animation with some LLDB magic, and found that the screen is animated using a `CASpringAnimation` with the parameters:
- stiffness: 1000
- damping: 500
- mass: 3
After spending a considerable amount of time attempting to replicate the spring created with these values by CASpringAnimation by specifying values for tension and friction in the current `Animated.spring` implementation, I was unable to come up with mathematically equivalent values that could replicate the spring _exactly_.
After doing some research, I ended up disassembling the QuartzCore framework, reading the assembly, and determined that Apple's implementation of `CASpringAnimation` does not use an integrated, numerical animation model as we do in Animated.spring, but instead solved for the closed form of the equations that govern damped harmonic oscillation (the differential equations themselves are [here](https://en.wikipedia.org/wiki/Harmonic_oscillator#Damped_harmonic_oscillator), and a paper describing the math to arrive at the closed-form solution to the second-order ODE that describes the DHO is [here](http://planetmath.org/sites/default/files/texpdf/39745.pdf)).
Though we can get the currently implemented RK4 integration close by tweaking some values, it is, the current model is at it's core, an approximation. It seemed that if I wanted to implement the `CASpringAnimation` behavior _exactly_, I needed to implement the analytical model (as is implemented in `CASpringAnimation`) in `Animated`.
We add three new optional parameters to `Animated.spring` (to both the JS and native implementations):
- `stiffness`, a value describing the spring's stiffness coefficient
- `damping`, a value defining how the spring's motion should be damped due to the forces of friction (technically called the _viscous damping coefficient_).
- `mass`, a value describing the mass of the object attached to the end of the simulated spring
Just like if a developer were to specify `bounciness`/`speed` and `tension`/`friction` in the same config, specifying any of these new parameters while also specifying the aforementioned config values will cause an error to be thrown.
~Defaults for `Animated.spring` across all three implementations (JS/iOS/Android) stay the same, so this is intended to be *a non-breaking change*.~
~If `stiffness`, `damping`, or `mass` are provided in the config, we switch to animating the spring with the new damped harmonic oscillator model (`DHO` as described in the code).~
We replace the old RK4 integration implementation with our new analytic implementation. Tension/friction nicely correspond directly to stiffness/damping with the mass of the spring locked at 1. This is intended to be *a non-breaking change*, but there may be very slight differences in people's springs (maybe not even noticeable to the naked eye), given the fact that this implementation is more accurate.
The DHO animation algorithm will calculate the _position_ of the spring at time _t_ explicitly and in an analytical fashion, and use this calculation to update the animation's value. It will also analytically calculate the velocity at time _t_, so as to allow animated value tracking to continue to work as expected.
Also, docs have been updated to cover the new configuration options (and also I added docs for Animated configuration options that were missing, such as `restDisplacementThreshold`, etc).
Run tests. Run "Animated Gratuitous App" and "NativeAnimation" example in RNTester.
Closes https://github.com/facebook/react-native/pull/15322
Differential Revision: D5794791
Pulled By: hramos
fbshipit-source-id: 58ed9e134a097e321c85c417a142576f6a8952f8
Krzysztof Magiera
Valentin Shergin
Evan J Brunner
Brian Vaughn
Semen Zhydenko
Adam Putinski
Moti Zilberman
Spencer Ahrens
David Vacca
Eli White
glevi@fb.com
Josh Hargreaves
Jimmy Zhuang
Gustavo Gard
Adam Ernst
Vincent Riemer
Eric Rozell
Douglas
Avik Chaudhuri
Daniel Friesen
Ramanpreet Nara
Janic Duplessis
Yann Pringault
Jason Carreiro
Tomas Reimers
Christopher Chedeau
Kevin Gozali
Adam Miskiewicz
