Summary:
Reduce re-renders by only looking at `props.data` that we're actually going to render and tracking if `this._rowFrames`
is dirty.
Differential Revision: D3195163
fb-gh-sync-id: 1e17ab410a312a37d4a93b84ea51ca32c3ede839
fbshipit-source-id: 1e17ab410a312a37d4a93b84ea51ca32c3ede839
Summary:First I searched for special cases that destructor PropTypes:
```
(?s)React\s*=\s*require\('react\-native'\).*(Children|PropTypes)[^\{\}]*\}\s*=\s*React;
```
I split them up manually.
Then I replaced the React = require('react-native') + destructuring pattern...
```
(?s)(const|var)\s+React\s*=\s*require\('react\-native'\)(.*[^\{\}]*\}\s*=\s*)React;
```
...with...
```
$1 React = require('react');
$1 ReactNative = require('react-native')$2ReactNative;
```
I used lint to figure out if I left some unnecessary imports.
Finally I grepped for just
```
React\s*=\s*require\('react\-native'\)
```
to catch any remaining patterns.
Also, `} = React.NativeModules` -> `} = ReactNative.NativeModules`.
Reviewed By: spicyj
Differential Revision: D3158991
fb-gh-sync-id: f97e8e921e193d6ea1a49d8d1bf3f09be7bed5c3
fbshipit-source-id: f97e8e921e193d6ea1a49d8d1bf3f09be7bed5c3
Summary:`WindowedListView` is designed for memory efficient scrolling of
huge/infinite lists of variable height rows. It works by measuring row heights
with `onLayout` and caching the results, then unmounting rows that scroll
offscreen, replacing them with an equivalent offset in the spacer view. Care is
taken to render a constant number of rows, and to only render one new row per
tick to improve framerate and app responsiveness. WLV is also compatible with
<Incremental> used within the rows themselves.
`WindowedListView` is not a drop-in replacement for `ListView` - it doesn't
support many of the features of `ListView`, such as section headers, only
accepts a simple array of data instead of a datasource, and doesn't support
horizontal scrolling. This may change in the future.
This is still experimental - we haven't deployed this for any production apps
yet.
Differential Revision: D2791402
fb-gh-sync-id: 5f104e0903f6ba586d2d651bdf82863a231279d8
fbshipit-source-id: 5f104e0903f6ba586d2d651bdf82863a231279d8
Summary:Everything wrapped in `<Incremental>` is rendered sequentially via `InteractionManager`.
The `onDone` callback is called when all descendent incremental components have
finished rendering, used by `<IncrementalPresenter>` to make the story visible all at once
instead of the parts popping in randomly.
This includes an example that demonstrates streaming rendering and the use of
`<IncrementalPresenter>`. Pressing down pauses rendering and you can see the
`TouchableOpacity` animation runs smoothly. Video:
https://youtu.be/4UNf4-8orQ4
Ideally this will be baked into React Core at some point, but according to jordwalke that's
going to require a major refactoring and take a long time, so going with this for now.
Reviewed By: ericvicenti
Differential Revision: D2506522
fb-gh-sync-id: 5969bf248de10d38b0ac22f34d7d49bf1b3ac4b6
shipit-source-id: 5969bf248de10d38b0ac22f34d7d49bf1b3ac4b6
Spencer Ahrens
glevi@fb.com
Sebastian Markbage
Steven Luscher