Janic Duplessis 8fbce3099d Fix RefreshControl race condition ...

Summary:
There was a race condition with `SwipeRefreshLayout` that cause the `RefreshControl` to keep refreshing when it shouldn't.

It was caused because we have to use `post` to set the refreshing state otherwise it doesn't work when setting `refreshing=true` on initial mount. What happened is that `post` doesn't guarantee the order the runnables will be called so calling post with `refreshing=true` followed by `refreshing=false` caused the `resfreshing=false` runnable to be called before the `resfreshing=true` one. This made it stay in refreshing state when it should not.

```
D/test    ( 6171): setRefreshing true
W/ReactNativeJS( 6171): false
D/test    ( 6171): setRefreshing false
D/test    ( 6171): setRefreshing post false
D/test    ( 6171): setRefreshing post true
```

This change adds an instance variable and uses it in the `post` runnable to make sure the last set value is always used.

**Test plan (required)**
Tested that it fixed the issue in the [original issue app](https://github.com/digisqu
Closes https://github.com/facebook/react-native/pull/7317

Differential Revision: D3290464

Pulled By: andreicoman11

fbshipit-source-id: 15cabcfc6d2f191443be96e8845b924ce66c369f

2016-05-11 17:16:23 -07:00

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facebook

Fix RefreshControl race condition

2016-05-11 17:16:23 -07:00