Merge pull request OneSignal#1253 from OneSignal/feat/add-set-language

Added methods for setLanguage feature

Author: nan-li

android/src/main/java/com/geektime/rnonesignalandroid/RNOneSignal.java

@@ -254,6 +254,11 @@ public void getDeviceState(Promise promise) {
       promise.resolve(RNUtils.jsonToWritableMap(state.toJSONObject()));
    }
 
+   @ReactMethod
+   public void setLanguage(String language) {
+      OneSignal.setLanguage(language);
+   }
+
    @ReactMethod
    public void disablePush(boolean disable) {
       OneSignal.disablePush(disable);

examples/RNOneSignalTS/src/OSButtons.tsx

@@ -135,6 +135,15 @@ class OSButtons extends React.Component<Props, State> {
             loggingFunction(`Device State: ${JSON.stringify(deviceState)}`);
         })
 
+        const setLanguageButton = renderButtonView(
+            "Set Language", 
+            color, 
+            () => {
+                loggingFunction('Attempting to set language: ', this.props.inputFieldValue);
+                OneSignal.setLanguage(this.props.inputFieldValue);
+            }
+        );
+
         const requireUserProvideConsent = renderButtonView(
             this.state.requireUserConsent ? "Remove User Privacy Consent Requirement" : "Require User Privacy Consent",
             color,
@@ -167,6 +176,7 @@ class OSButtons extends React.Component<Props, State> {
 
         elements.push(
             deviceStateButton,
+            setLanguageButton,
             requireUserProvideConsent,
             appRequireUserProvideConsent,
             provideUserConsentButton,

ios/RCTOneSignal/RCTOneSignalEventEmitter.m

@@ -199,6 +199,10 @@ + (void)sendEventWithName:(NSString *)name withBody:(NSDictionary *)body {
     }
 }
 
+RCT_EXPORT_METHOD(setLanguage:(NSString *)language) {
+    [OneSignal setLanguage:language];
+}
+
 RCT_EXPORT_METHOD(setNotificationOpenedHandler) {
     [OneSignal setNotificationOpenedHandler:^(OSNotificationOpenedResult *result) {
         [RCTOneSignalEventEmitter sendEventWithName:@"OneSignal-remoteNotificationOpened" withBody:[result jsonRepresentation]];

src/index.d.ts

@@ -234,6 +234,13 @@ declare module 'react-native-onesignal' {
          */
         getDeviceState(): Promise<DeviceState>;
 
+        /**
+         * Allows you to set the app defined language with the OneSignal SDK.
+         * @param  {string} language
+         * @returns void
+         */
+        setLanguage(language: string): void;
+
         /**
          * Tag a user based on an app event of your choosing so they can be targeted later via segments.
          * @param  {string} key

src/index.js

@@ -160,6 +160,12 @@ export default class OneSignal {
         return deviceState;
     }
 
+    static setLanguage(language) {
+        if (!isObjectNonNull(RNOneSignal)) return;
+        
+        RNOneSignal.setLanguage(language);
+    }
+
     /* T A G S */
 
     static sendTag(key, value) {