Added volume to iOS

README.md

@@ -55,7 +55,8 @@ Additionally, speak() allows to pass platform-specific options.
 // IOS
 Tts.speak('Hello, world!', {
   iosVoiceId: 'com.apple.ttsbundle.Moira-compact',
-  rate: 0.5,
+  rate: 0.5, 
+   volume: 1.0
 });
 // Android
 Tts.speak('Hello, world!', {
@@ -79,6 +80,7 @@ The supported options for IOS are:
 
 - `iosVoiceId` which voice to use, check [voices()](#list-voices) for available values
 - `rate` which speech rate this line should be spoken with. Will override [default rate](#set-default-speech-rate) if set for this utterance.
+- `volume` sets the volume for the speech.
 
 Stop speaking and flush the TTS queue.
 
@@ -151,6 +153,16 @@ Sets default voice, pass one of the voiceId as reported by a call to Tts.voices(
 Tts.setDefaultVoice('com.apple.ttsbundle.Moira-compact');
 ```
 
+### Set default Volume 
+
+*(only for iOS)*
+
+Sets default volume for the speech. This should be between 0.0 and 1.0
+
+```js
+Tts.setDefaultVolume(0.8);
+``` 
+
 ### Set default Speech Rate
 
 Sets default speech rate. The rate parameter is a float where where 0.01 is a slowest rate and 0.99 is the fastest rate.

index.d.ts

@@ -37,7 +37,8 @@ export type TtsError = {
     | "Android AudioManager error"
     | "not_available"
     | "not_found"
-    | "bad_rate";
+    | "bad_rate"
+      | "bad_volume";
   message: string;
 };
 
@@ -82,6 +83,7 @@ export type Options =
   | {
       iosVoiceId: string;
       rate: number;
+      volume: number;
       androidParams: AndroidOptions;
     };
 
@@ -93,6 +95,7 @@ export class ReactNativeTts extends RN.NativeEventEmitter {
   setDefaultEngine: (engineName: string) => Promise<boolean>;
   setDefaultVoice: (voiceId: string) => Promise<"success">;
   setDefaultRate: (rate: number, skipTransform?: boolean) => Promise<"success">;
+  setDefaultVolume: (volume: number) => Promise<"success">;
   setDefaultPitch: (pitch: number) => Promise<"success">;
   setDefaultLanguage: (language: string) => Promise<"success">;
   setIgnoreSilentSwitch: (ignoreSilentSwitch: IOSSilentSwitchBehavior) => Promise<boolean>;

index.js

@@ -49,6 +49,14 @@ class Tts extends NativeEventEmitter {
   setDefaultRate(rate, skipTransform) {
     return TextToSpeech.setDefaultRate(rate, !!skipTransform);
   }
+  setDefaultVolume(volume) {
+    if (Platform.OS === 'ios') {
+      return TextToSpeech.setDefaultVolume(volume);
+    }
+    else {
+      return Promise.resolve()
+    }
+  }
 
   setDefaultPitch(pitch) {
     return TextToSpeech.setDefaultPitch(pitch);

ios/Podfile

@@ -0,0 +1,26 @@
+# Uncomment the next line to define a global platform for your project
+require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'
+require_relative '../node_modules/react-native/scripts/react_native_pods'
+platform :ios, '11.0'
+
+# ignore all warnings from all pods
+inhibit_all_warnings!
+
+target 'TextToSpeech' do
+
+    config = use_native_modules!
+
+    use_react_native!(:path => config["reactNativePath"])
+
+
+    # Enables Flipper.
+    #
+    # Note that if you have use_frameworks! enabled, Flipper will not work and
+    # you should disable these next few lines.
+
+    #use_flipper!
+    #post_install do |installer|
+     # flipper_post_install(installer)
+    #end
+
+end