API inconsistency

[padupuy]

Issue

Describe your issue here with as much detail possible.

When RNSettings.getSetting(RNSettings.LOCATION_SETTING) is called, the success callback is called with a string RNSettings.ENABLED or RNSettings.DISABLED.
But when the device listener is called DeviceEventEmitter.addListener(RNSettings.GPS_PROVIDER_EVENT, updatePhonePermissionState);, the success callback is called with an object

{
[RNSettings.LOCATION_SETTING]: RNSettings.ENABLED | RNSettings.DISABLED
}

I suggest to standardize the callback signature, so we could re use the same success callback.

---

Environment

Click To Expand

react-native info output:

System:
    OS: macOS 10.15.3
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 154.79 MB / 16.00 GB
    Shell: 5.7.1 - /bin/zsh
  Binaries:
    Node: 13.5.0 - ~/.nvm/versions/node/v13.5.0/bin/node
    Yarn: 1.21.1 - /usr/local/bin/yarn
    npm: 6.13.4 - ~/.nvm/versions/node/v13.5.0/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  SDKs:
    iOS SDK:
      Platforms: iOS 13.2, DriverKit 19.0, macOS 10.15, tvOS 13.2, watchOS 6.1
    Android SDK:
      API Levels: 23, 28, 29
      Build Tools: 28.0.3, 29.0.2
      System Images: android-28 | Google Play Intel x86 Atom, android-29 | Google APIs Intel x86 Atom
  IDEs:
    Android Studio: 3.5 AI-191.8026.42.35.6010548
    Xcode: 11.3/11C29 - /usr/bin/xcodebuild
  npmPackages:
    react: 16.9.0 => 16.9.0 
    react-native: 0.60.0 => 0.60.0

• Platform that you're experiencing the issue on:
  • iOS
  • Android

[erezrokah]

Thanks for opening this, I'll try to find some time to look into it this week.

[erezrokah]

Merged a fix into a future branch #55, will look into #50 and will do a release after that.