Summary:
This is reimagining of interoperability layer between Yoga and ShadowViews (at least in Yoga -> RN part).
Goals:
* Make it clear and easy.
* Make clear separation between "what layout what", now parent always layout children, noone layout itself.
* Make possible to interleave Yoga layout with custom imperative layout (may be used in SafeAreaView, Text, Modal, InputAccessoryView and so on).
Reviewed By: mmmulani
Differential Revision: D6863654
fbshipit-source-id: 5a6a933874f121d46f744aab99a31ae42ddd4a1b
Summary:
I've talked to several major community users, and they're all ok with deleting this
code. There's several doc fixes which will make it easier for third
party developers which should land about the same time this will.
Also buried along with it is RCTJSCExecutor.
Reviewed By: javache
Differential Revision: D6880781
fbshipit-source-id: b4cb1143def6fd23a96290e478fa728adbedacd3
Summary:
This PR is a followup to https://github.com/facebook/react-native/pull/11417 and should be merged after that one is merged.
1. Add support for creating blobs from strings, not just other blobs
1. Add the `File` constructor which is a superset of `Blob`
1. Add the `FileReader` API which can be used to read blobs as strings or data url (base64)
1. Add support for uploading and downloading blobs via `XMLHttpRequest` and `fetch`
1. Add ability to download local files on Android so you can do `fetch(uri).then(res => res.blob())` to get a blob for a local file (iOS already supported this)
1. Clone the repo https://github.com/expo/react-native-blob-test
1. Change the `package.json` and update `react-native` dependency to point to this branch, then run `npm install`
1. Run the `server.js` file with `node server.js`
1. Open the `index.common.js` file and replace `localhost` with your computer's IP address
1. Start the packager with `yarn start` and run the app on your device
If everything went well, all tests should pass, and you should see a screen like this:
!
Pull to rerun all tests or tap on specific test to re-run it
[GENERAL] [FEATURE] [Blob] - Implement blob support for XMLHttpRequest
Closes https://github.com/facebook/react-native/pull/11573
Reviewed By: shergin
Differential Revision: D6082054
Pulled By: hramos
fbshipit-source-id: cc9c174fdefdfaf6e5d9fd7b300120a01a50e8c1
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
Summary:
We have to have a way to track ownership of shadow view.
Previous solution with traversing the hierarchy to figure out the root view does not actually work in some cases when the view is temporary detached from hierarchy.
This is also how it work on Andorid.
Reviewed By: mmmulani
Differential Revision: D5686112
fbshipit-source-id: a23a10e8c29c7572ac69403289db136c9d5176a9
Summary:
This shows progress for the download of the JS bundle (different from the packager transform progress that we show already). This is useful especially when loading the JS bundle from a remote source or when developing on device (on simulator + localhost it pretty much just downloads instantly). This will be nice for the expo client since all bundles are loaded over the network and can take several seconds to load.
This depends on https://github.com/facebook/metro-bundler/pull/28 to work but won't crash or anything without it, it just won't show the progress percentage.
**Test plan**
Tested that bundle download progress is shown properly in RNTester on both localhost + simulator and on real device with network conditionner to simulate a slow loading bundle.
Tested that it doesn't cause issues if the packager doesn't send the Content-Length header.
Closes https://github.com/facebook/react-native/pull/15066
Differential Revision: D5449073
Pulled By: shergin
fbshipit-source-id: 43a8fb559393bbdc04f77916500e21898695bac5
Summary:
Follow up to #11973 to add support to Animated.loop with useNativeDriver on iOS.
**Test plan**
Test with new UIExplorer example
Run unit tests
Closes https://github.com/facebook/react-native/pull/13359
Differential Revision: D4960754
Pulled By: javache
fbshipit-source-id: caa840281f1b060df7a2b1c50405fcae1e1b0de6
Valentin Shergin
Marc Horowitz
Satyajit Sahoo
Yujie Liu
Gustavo Gard
Aditya Kumar
Adam Miskiewicz
Alex Dvornikov
Janic Duplessis
Pieter De Baets
Janic Duplessis
Pieter De Baets
Eric Vicenti
