Summary: From http://developer.android.com/guide/topics/resources/runtime-changes.html
> Some device configurations can change during runtime (such as screen orientation, keyboard availability, and language). When such a change occurs, Android restarts the running Activity (onDestroy() is called, followed by onCreate()). The restart behavior is designed to help your application adapt to new configurations by automatically reloading your application with alternative resources that match the new device configuration.
However, in a React Native app, there is only a single activity for the entire app, unlike a single activity per screen in Android, and resources are not specific to orientation etc. Destroying activity means reloading the entire app. Most of the time, this is not the intended behaviour, and can cause data loss for the user if the developer doesn't disable it explicitly. I'm proposing to disable it by default.
Closes https://github.com/facebook/react-native/pull/3813
Reviewed By: svcscm
Differential Revision: D2616083
Pulled By: foghina
fb-gh-sync-id: 8794e436f61581ff0bf569b1b112845cae77b688
Summary: A lot of people try to use a device as the very first thing when trying
out React Native. I've observed this at the developer workshop in Prague
and on Twitter.
However, developing on pre-API 21 devices is quite involved:
https://facebook.github.io/react-native/docs/running-on-device-android.html
I'm thinking we could recommend installing Android together with Android
studio. Android studio installs HAXM for you (hardware acceleration, without
this Google emulators are useless) and also creates and starts emulators.
So it would be quite a smooth experience similar to pressing 'Run' in Xcode.
We'd just need to integrate with Gradle so that installing the app also starts
the packager. I think that's something we should do in any case.
Probably an even better option is to build a React Native-specific tool that
lets you do everything you need: opens the Android SDK Manager, creates and
starts emulators, detects whether you have Genymotion and opens it, upgrades
node and npm etc.
public
Reviewed By: vjeux
Differential Revision: D2604774
fb-gh-sync-id: c7ffb701b4e5209815faf652926937c22943be95
Summary: This adds gradle tasks that call `react-native bundle` with the correct args to bundle dev/release JS and assets. The dev task is disabled by default, as in dev mode people only use reload JS in most cases.
Submitting this as a pull request to have community visibility, although we have this code internally as well now and this will require an import.
* generate a project with `react-native init`, add some assets, run `./gradlew assembleRelease`, sign & zipalign generated APK, run it -> works
* enable dev bundling task, run `./gradlew installDebug` (not `react-native run-android` so as to not start the packager) -> works
Reviewed By: svcscm
Differential Revision: D2555071
Pulled By: foghina
fb-gh-sync-id: c3d9fcd4c77862e6a4db4e4d8d8cc39ee9dff3ab
This is an early release and there are several things that are known
not to work if you're porting your iOS app to Android.
See the Known Issues guide on the website.
We will work with the community to reach platform parity with iOS.
Satyajit Sahoo
Martin Konicek
Aaron Chiu
Felix Oghină
Kyle Corbitt