Summary: Allows developers to specify headers to include in the HTTP request when fetching a remote image. For example, one might leverage this when fetching an image from an endpoint that requires authentication: ``` <Image style={styles.logo} source={{ uri: 'http://facebook.github.io/react/img/logo_og.png', headers: { Authorization: 'someAuthToken' } }} /> ``` Note that the header values must be strings. Works on iOS and Android. **Test plan (required)** - Ran a small example like the one above on iOS and Android and ensured the headers were sent to the server. - Ran a small example to ensure that \<Image\> components without headers still work. - Currently using this code in our app. Adam Comella Microsoft Corp. Closes https://github.com/facebook/react-native/pull/7338 Reviewed By: javache Differential Revision: D3371458 Pulled By: nicklockwood fbshipit-source-id: cdb24fe2572c3ae3ba82c86ad383af6d85157e20
UIExplorer
The UIExplorer is a sample app that showcases React Native views and modules.
Running this app
Before running the app, make sure you ran:
git clone https://github.com/facebook/react-native.git
cd react-native
npm install
Running on iOS
Mac OS and Xcode are required.
- Open
Examples/UIExplorer/UIExplorer.xcodeproj
in Xcode - Hit the Run button
See Running on device if you want to use a physical device.
Running on Android
You'll need to have all the prerequisites (SDK, NDK) for Building React Native installed.
Start an Android emulator (Genymotion is recommended).
cd react-native
./gradlew :Examples:UIExplorer:android:app:installDebug
./packager/packager.sh
Note: Building for the first time can take a while.
Open the UIExplorer app in your emulator.
See Running on Device in case you want to use a physical device.
Running with Buck
Follow the same setup as running with gradle.
Install Buck from here.
Run the following commands from the react-native folder:
./gradlew :ReactAndroid:packageReactNdkLibsForBuck
buck fetch uiexplorer
buck install -r uiexplorer
./packager/packager.sh
Note: The native libs are still built using gradle. Full build with buck is coming soon(tm).
Built from source
Building the app on both iOS and Android means building the React Native framework from source. This way you're running the latest native and JS code the way you see it in your clone of the github repo.
This is different from apps created using react-native init
which have a dependency on a specific version of React Native JS and native code, declared in a package.json
file (and build.gradle
for Android apps).