Merge pull request #174 from passabilities/phone-number

Add support for phone number.

README.md

@@ -143,13 +143,14 @@ include ':app'
 
 (Thanks to @josephan for writing the instructions)
 
-## Device Name
+## Permissions
 
-If you want to get the device name in Android add this to your `AndroidManifest.xml` (optional):
+Add the appropriate, optional permissions to your `AndroidManifest.xml`:
 
 ```xml
 ...
-<uses-permission android:name="android.permission.BLUETOOTH"/>
+<uses-permission android:name="android.permission.BLUETOOTH"/>         <!-- for Device Name -->
+<uses-permission android:name="android.permission.READ_PHONE_STATE"/>  <!-- for Phone Number -->
 ```
 
 ## Release Notes
@@ -185,6 +186,7 @@ var DeviceInfo = require('react-native-device-info');
 | App is running in emulator | `isEmulator()`                     | true                                                                                          | if app is running in emulator return true                                                                        |
 | App is running on a tablet | `isTablet()`                       | true                                                                                          | if app is running on a tablet return true                                                                        |
 | PIN or fingerprint set     | `isPinOrFingerprintSet()(callback)`|                                                                                               | Only supported in Android and iOS 9.0 and above
+| Phone Number               | `getPhoneNumber()`                 | "2348675309" or "" or null                                                                    | Only supported in Android
 
 Since the device setting for PIN/Fingerprint can be modified while the app is still open, this is available via callback instead of as a constant.  To use, pass a callback function to the returned bridge function in your javascript:
 

android/src/main/java/com/learnium/RNDeviceInfo/RNDeviceModule.java

@@ -9,6 +9,7 @@ import android.content.res.Configuration;
 import android.os.Build;
 import android.provider.Settings.Secure;
 import android.webkit.WebSettings;
+import android.telephony.TelephonyManager;
 
 import com.google.android.gms.iid.InstanceID;
 
@@ -84,6 +85,7 @@ public class RNDeviceModule extends ReactContextBaseJavaModule {
   public @Nullable Map<String, Object> getConstants() {
     HashMap<String, Object> constants = new HashMap<String, Object>();
 
+    TelephonyManager telMgr = (TelephonyManager) this.reactContext.getSystemService(Context.TELEPHONY_SERVICE);
     PackageManager packageManager = this.reactContext.getPackageManager();
     String packageName = this.reactContext.getPackageName();
 
@@ -126,6 +128,7 @@ public class RNDeviceModule extends ReactContextBaseJavaModule {
     constants.put("timezone", TimeZone.getDefault().getID());
     constants.put("isEmulator", this.isEmulator());
     constants.put("isTablet", this.isTablet());
+    constants.put("phoneNumber", telMgr.getLine1Number());
     return constants;
   }
 }

deviceinfo.js

@@ -65,4 +65,5 @@ module.exports = {
   isPinOrFingerprintSet: function () {
     return RNDeviceInfo.isPinOrFingerprintSet;
   },
+  getPhoneNumber: _ => RNDeviceInfo.phoneNumber
 };