Summary:
Running *lint* on RN found that there are some Java 8 features used without specifying Java 8 compatibility in projects. This PR adds Java 8 compatibility and fixes errors caused by Java 8 feature use. I suspend that it may be cause of many failures on older Androids, but also found that many modules/packages switched to and require Java 8.
```java
../../src/main/java/com/facebook/react/devsupport/BundleDownloader.java:167: Try-with-resources requires API level 19 (current min is 16)
../../src/main/java/com/facebook/react/devsupport/DevServerHelper.java:658: Try-with-resources requires API level 19 (current min is 16)
```
For more information https://developer.android.com/studio/write/java8-support
[Android] [Changed] - Enable Java 8
Pull Request resolved: https://github.com/facebook/react-native/pull/23295
Differential Revision: D13959096
Pulled By: cpojer
fbshipit-source-id: 0bfd0565b61a132906cf35ee55b4afcf5450f7cb
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/22231
- Use clang instead of the deprecated gcc
- Use libc++ instead of the deprecated gnustl
- Updated gradle and android plugin version
- Fixed missing arch in local-cli template
- `clean` task should now always succeed
- `clean` task deletes build artifacts
- No need to specify buildToolsVersion. It's derived.
- Elvis operator for more readable code
Pull Request resolved: https://github.com/facebook/react-native/pull/22263
Reviewed By: hramos
Differential Revision: D13004499
Pulled By: DanielZlotin
fbshipit-source-id: da54bb744cedb4c6f3bda590f8c25d0ad64086ef
Summary: This diff moves the React Native template from `local-cli/templates/HelloWorld` to `template`. Keeping it in the react-native repo will allow us to make changes to the template and version it together with react-native, instead of moving it out into a separate repo and trying to keep the template in sync with RN.
Reviewed By: TheSavior
Differential Revision: D13372949
fbshipit-source-id: e68e267b4dcf6384535d7b48fc11e297a12e9676