Summary:
The `ScrollView` sends important `updatedChildFrames` data to the `ListView` to be able to implement `onChangeVisibleRows` method. Coalescing operates very strongly on older devices like the iPhone 4s where this data is then lost.
Fixes#1782.
`ListView` has a method called `onChangeVisibleRows` that is called whenever the rows visible on screen change. This method is critical to be able to implement deletion/creation of views and hence be conservative in memory usage. I have an infinite scrolling view which uses this method to only render the full rows for what is visible on screen and put placeholders for everything else.
In the `RCTEventDispatcher`, we [coalesce events](522fd33d6f/React/Base/RCTEventDispatcher.m (L135-L152)) that are meant to be sent across the bridge. They are [dequeued](522fd33d6f/React/Base/RCTEventDispatcher.m (L180-L188)) on each
Closes https://github.com/facebook/react-native/pull/1783
Github Author: Param Aggarwal <paramaggarwal@gmail.com>
Summary:
In some case, it is very useful to have `velocity` and `targetContentOffset` parameters for `ScrollEndDrag` event. I just added them.
Closes https://github.com/facebook/react-native/pull/1500
Github Author: =?UTF-8?q?=E6=AD=A3=E9=9C=96?= <zhenglin.lzl@alibaba-inc.com>
Test Plan: Imported from GitHub, without a `Test Plan:` line.
Summary:
@public
I've increased the warning levels in the OSS frameworks, which caught a bunch of minor issues. I also fixed some new errors in Xcode 7 relating to designated initializers and TLS security.
Test Plan:
* Test the sample apps and make sure they still work.
* Run tests.
Summary:
As per discussion with @nicklockwood in #875, make `RCTScrollView` check its sticky headers for hitTests first.
Closes https://github.com/facebook/react-native/pull/1415
Github Author: Brent Vatne <brent.vatne@madriska.com>
Test Plan:
Have a sticky header in a ScrollView with a Touchable onPress action, scroll a bit after it docks and try tapping, should respond to tap.
Summary:
We need to unset `clipsToBounds` on both the wrapper and the inner custom
scroll view
@public
Test Plan:
`overflow: 'visible'` actually shows content outside the `ScrollView`
(e.g. for full-bleed horizontal scrollers/carousels). It doesn't pick up
touches though, which is a wider issue.
