Merge pull request #405 from react-native-webrtc/android_doc_foreground_service_type

Document the use of foregroundServiceType in Android < 11

Author: manuquentin

docs/android-installation.md

@@ -60,7 +60,6 @@ public class MainActivity extends ReactActivity {
 
 1. In `android/app/src/main/AndroidManifest.xml` add these permissions:
 
-
 ```xml
 <uses-permission android:name="android.permission.BIND_TELECOM_CONNECTION_SERVICE"/>
 <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
@@ -72,7 +71,12 @@ public class MainActivity extends ReactActivity {
     <service android:name="io.wazo.callkeep.VoiceConnectionService"
         android:label="Wazo"
         android:permission="android.permission.BIND_TELECOM_CONNECTION_SERVICE"
-        android:foregroundServiceType="camera|microphone">>
+        // Use this to target android >= 11
+        android:foregroundServiceType="camera|microphone"
+        // For android < 11
+        android:foregroundServiceType="phoneCall"
+    >
+        
         <intent-filter>
             <action android:name="android.telecom.ConnectionService" />
         </intent-filter>
@@ -81,6 +85,8 @@ public class MainActivity extends ReactActivity {
 </application>
 ```
 
+Beware to choose the right `foregroundServiceType` depending on the version of Android you want to target.
+
 2. To be able to wake up your killed application when making an outgoing call form the native Phone application:
 
 Add this in the `application` node of `android/app/src/main/AndroidManifest.xml` :