feat: add expo config plugin

.eslintignore

@@ -1,4 +1,5 @@
 /**/node_modules/*
 node_modules/
 docs/**
-lib/**
+plugin/build
+lib/**

.eslintrc.json

@@ -89,6 +89,17 @@
         "max-classes-per-file": "off",
         "prettier/prettier": "off"
       }
+    },
+    {
+      "files": ["plugin/**"],
+      "rules": {
+        "no-underscore-dangle": 0,
+        "@typescript-eslint/naming-convention": 0,
+        "import/no-default-export": 0,
+        "@typescript-eslint/no-shadow": 0,
+        "global-require": 0,
+        "@typescript-eslint/no-var-requires": 0
+      }
     }
   ]
 }

.flowconfig

@@ -26,6 +26,10 @@ node_modules/warning/.*
 !<PROJECT_ROOT>/node_modules/react-native/
 <PROJECT_ROOT>/node_modules/react-native/Libraries/DevToolsSettings/DevToolsSettingsManager.d.ts
 
+; Output files
+<PROJECT_ROOT>/lib/.*
+<PROJECT_ROOT>/test_project/.*
+
 [untyped]
 .*/node_modules/@react-native-community/cli/.*/.*
 

.npmignore

@@ -64,4 +64,9 @@ Carthage
 docs/
 
 # Tests
-__tests__/
+__tests__/
+
+# Expo plugin
+/plugin/src
+/plugin/jest.config.js
+/plugin/tsconfig.json

.prettierignore

@@ -0,0 +1,3 @@
+# Outputs
+plugin/build
+lib

README.md

@@ -37,6 +37,7 @@ It does NOT support:
 3. [Documentation & Support](#documentation--support)
 4. [Configuration & Installation](#configuration--installation)
 5. [Troubleshooting](#troubleshooting)
+6. [Contributions](#contributions)
 
 ## Compatibility
 
@@ -79,7 +80,51 @@ Contact us at [intent](https://withintent.com/contact-us/?utm_source=github&utm_
 
 ### Expo SDK 43+
 
-1. A custom expo-dev-client can now be built along with config plugins to avoid the need to eject from Expo. Learn how to integrate react-native-ble-plx with Expo [here](https://expo.canny.io/feature-requests/p/bluetooth-1). (only for expo SDK 43+)
+> Tested against Expo SDK 49
+> This package cannot be used in the "Expo Go" app because [it requires custom native code](https://docs.expo.io/workflow/customizing/).
+> First install the package with yarn, npm, or [`npx expo install`](https://docs.expo.io/workflow/expo-cli/#expo-install).
+
+After installing this npm package, add the [config plugin](https://docs.expo.io/guides/config-plugins/) to the [`plugins`](https://docs.expo.io/versions/latest/config/app/#plugins) array of your `app.json` or `app.config.js`:
+
+```json
+{
+  "expo": {
+    "plugins": ["react-native-ble-plx"]
+  }
+}
+```
+
+Next, rebuild your app as described in the ["Adding custom native code"](https://docs.expo.io/workflow/customizing/) guide.
+
+## API
+
+The plugin provides props for extra customization. Every time you change the props or plugins, you'll need to rebuild (and `prebuild`) the native app. If no extra properties are added, defaults will be used.
+
+- `isBackgroundEnabled` (_boolean_): Enable background BLE support on Android. Adds `<uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/>` to the `AndroidManifest.xml`. Default `false`.
+- `neverForLocation` (_boolean_): Set to true only if you can strongly assert that your app never derives physical location from Bluetooth scan results. The location permission will be still required on older Android devices. Note, that some BLE beacons are filtered from the scan results. Android SDK 31+. Default `false`. _WARNING: This parameter is experimental and BLE might not work. Make sure to test before releasing to production._
+- `modes` (_string[]_): Adds iOS `UIBackgroundModes` to the `Info.plist`. Options are: `peripheral`, and `central`. Defaults to undefined.
+- `bluetoothAlwaysPermission` (_string | false_): Sets the iOS `NSBluetoothAlwaysUsageDescription` permission message to the `Info.plist`. Setting `false` will skip adding the permission. Defaults to `Allow $(PRODUCT_NAME) to connect to bluetooth devices`.
+
+> Expo SDK 48 supports iOS 13+ which means `NSBluetoothPeripheralUsageDescription` is fully deprecated. It is no longer setup in `@config-plugins/[email protected]` and greater.
+
+#### Example
+
+```json
+{
+  "expo": {
+    "plugins": [
+      [
+        "@config-plugins/react-native-ble-plx",
+        {
+          "isBackgroundEnabled": true,
+          "modes": ["peripheral", "central"],
+          "bluetoothAlwaysPermission": "Allow $(PRODUCT_NAME) to connect to bluetooth devices"
+        }
+      ]
+    ]
+  }
+}
+```
 
 ### Legacy Expo (SDK < 43)
 
@@ -162,3 +207,7 @@ Contact us at [intent](https://withintent.com/contact-us/?utm_source=github&utm_
    With `neverForLocation` flag active, you no longer need to ask for `ACCESS_FINE_LOCATION` in your app
 
 ## Troubleshooting
+
+## Contributions
+
+- Special thanks to @EvanBacon for supporting the expo config plugin.

app.plugin.js

@@ -0,0 +1 @@
+module.exports = require('./plugin/build/withBLE')

jest.config.js

@@ -0,0 +1,4 @@
+module.exports = {
+  roots: ['<rootDir>/__tests__'],
+  preset: 'react-native'
+}