Summary: Issue [#2088](https://github.com/facebook/react-native/issues/2088). The basic desire is to have a declarative mechanism to transform text content to uppercase or lowercase or titlecase ("capitalized"). My test plan involves having added a test-case to the RNTester app within the `<Text>` component area. I then manually verified that the rendered content met my expectation. Here is the markup that exercises my enhancement: ``` <View> <Text style={{ textTransform: 'uppercase'}}> This text should be uppercased. </Text> <Text style={{ textTransform: 'lowercase'}}> This TEXT SHOULD be lowercased. </Text> <Text style={{ textTransform: 'capitalize'}}> This text should be CAPITALIZED. </Text> <Text style={{ textTransform: 'capitalize'}}> Mixed:{' '} <Text style={{ textTransform: 'uppercase'}}> uppercase{' '} </Text> <Text style={{ textTransform: 'lowercase'}}> LoWeRcAsE{' '} </Text> <Text style={{ textTransform: 'capitalize'}}> capitalize each word </Text> </Text> </View> ``` And here is a screenshot of the result: ![screen shot 2018-03-14 at 3 01 02 pm](https://user-images.githubusercontent.com/575821/37433772-7abe7fa0-279a-11e8-9ec9-fb3aa1952dad.png) [Website Documentation PR](https://github.com/facebook/react-native-website/pull/254) https://github.com/facebook/react-native-website/pull/254 [IOS] [ENHANCEMENT] [Text] - added textTransform style property enabling declarative casing transformations Closes https://github.com/facebook/react-native/pull/18387 Differential Revision: D7583315 Pulled By: shergin fbshipit-source-id: a5d22aea2aa4f494b7b25a055abe64799ccbaa79
RNTester
The RNTester 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
RNTester/RNTester.xcodeproj
in Xcode - Hit the Run button
See Running on device if you want to use a physical device.
Running on iOS with CocoaPods
Similar to above, you can build the app via Xcode with help of CocoaPods.
- Install CocoaPods
- Run
cd RNTester; pod install
- Open the generated
RNTesterPods.xcworkspace
(this is not checked in). Do not openRNTesterPods.xcodeproj
directly.
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 :RNTester:android:app:installDebug
./scripts/packager.sh
Note: Building for the first time can take a while.
Open the RNTester 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 rntester
buck install -r rntester
./scripts/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).