Prototype to try InCallService APIs

app/src/main/AndroidManifest.xml

@@ -121,6 +121,11 @@
                 <data android:scheme="linphone-config" />
             </intent-filter>
 
+            <intent-filter>
+                <action android:name="android.intent.action.DIAL" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+
         </activity>
 
         <activity
@@ -208,6 +213,16 @@
             </intent-filter>
         </service>-->
 
+        <service android:name=".telecom.TelecomInCallService"
+            android:exported="true"
+            android:permission="android.permission.BIND_INCALL_SERVICE">
+            <meta-data android:name="android.telecom.IN_CALL_SERVICE_UI" android:value="true" />
+            <meta-data android:name="android.telecom.IN_CALL_SERVICE_RINGING" android:value="true" />
+            <intent-filter>
+                <action android:name="android.telecom.InCallService" />
+            </intent-filter>
+        </service>
+
         <!-- Receivers -->
 
         <receiver android:name=".core.CorePushReceiver"

app/src/main/java/org/linphone/telecom/TelecomInCallService.kt

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2010-2025 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.telecom
+
+import android.os.Build
+import android.telecom.Call
+import android.telecom.InCallService
+import android.telecom.VideoProfile
+import androidx.annotation.RequiresApi
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.tools.Log
+
+class TelecomInCallService : InCallService() {
+    companion object {
+        private const val TAG = "[Telecom InCall Service]"
+    }
+
+    private val callsList = arrayListOf<Call>()
+
+    private val callListener = object : Call.Callback() {
+        override fun onStateChanged(call: Call, state: Int) {
+            Log.i("$TAG Call state changed [${callStateToString(state)}]")
+        }
+    }
+
+    override fun onBringToForeground(showDialpad: Boolean) {
+        Log.i("$TAG onBringToForeground, showDialpad: $showDialpad")
+    }
+
+    @RequiresApi(Build.VERSION_CODES.Q)
+    override fun onCallAdded(call: Call) {
+        super.onCallAdded(call)
+
+        val uri = call.details.handle
+        val isIncoming = call.details.callDirection == Call.Details.DIRECTION_INCOMING
+        val state = call.details.state
+        Log.i("$TAG Added call direction is [${if (isIncoming) "incoming" else "outgoing"}], URI is [$uri], state [${callStateToString(state)}], call [$call]")
+
+        call.registerCallback(callListener)
+        callsList.add(call)
+
+        if (uri.scheme == "tel") {
+            val number = uri.schemeSpecificPart
+            Log.i("$TAG Extract number [$number] from tel: URI")
+            if (!isIncoming) {
+                coreContext.postOnCoreThread { core ->
+                    val address = core.interpretUrl(number, true)
+                    if (address != null) {
+                        Log.i("$TAG Calling SIP URI [${address.asStringUriOnly()}]")
+                        if (call.details.videoState == VideoProfile.STATE_AUDIO_ONLY) {
+                            coreContext.startAudioCall(address)
+                        } else {
+                            coreContext.startVideoCall(address)
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    override fun onCallRemoved(call: Call) {
+        super.onCallRemoved(call)
+
+        Log.i("$TAG onCallRemoved with call [$call]")
+        call.unregisterCallback(callListener)
+        callsList.remove(call)
+    }
+
+    override fun onCanAddCallChanged(canAddCall: Boolean) {
+        Log.i("$TAG onCanAddCallChanged: $canAddCall")
+    }
+
+    override fun onMuteStateChanged(isMuted: Boolean) {
+        Log.i("$TAG onMuteStateChanged: $isMuted")
+    }
+
+    override fun onSilenceRinger() {
+        Log.i("$TAG onSilenceRinger")
+    }
+
+    private fun callStateToString(state: Int): String {
+        return when (state) {
+            Call.STATE_NEW -> "NEW"
+            Call.STATE_DIALING -> "DIALING"
+            Call.STATE_RINGING -> "RINGING"
+            Call.STATE_HOLDING -> "HOLDING"
+            Call.STATE_ACTIVE -> "ACTIVE"
+            Call.STATE_DISCONNECTED -> "DISCONNECTED"
+            Call.STATE_SELECT_PHONE_ACCOUNT -> "SELECT_PHONE_ACCOUNT"
+            Call.STATE_CONNECTING -> "CONNECTING"
+            Call.STATE_DISCONNECTING -> "DISCONNECTING"
+            Call.STATE_PULLING_CALL -> "PULLING_CALL"
+            Call.STATE_AUDIO_PROCESSING -> "AUDIO_PROCESSING"
+            Call.STATE_SIMULATED_RINGING -> "SIMULATED_RINGING"
+            else -> "UNKNOWN [$state]"
+        }
+    }
+}

app/src/main/java/org/linphone/ui/main/MainActivity.kt

@@ -21,7 +21,10 @@ package org.linphone.ui.main
 
 import android.Manifest
 import android.annotation.SuppressLint
+import android.app.ComponentCaller
 import android.app.Dialog
+import android.app.role.RoleManager
+import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
 import android.graphics.Color
@@ -89,6 +92,8 @@ class MainActivity : GenericActivity() {
         private const val CHAT_FRAGMENT_ID = 3
         private const val MEETINGS_FRAGMENT_ID = 4
 
+        private const val DIALER_ROLE_REQUEST_CODE = 1
+
         const val ARGUMENTS_CHAT = "Chat"
         const val ARGUMENTS_CONVERSATION_ID = "ConversationId"
     }
@@ -391,6 +396,8 @@ class MainActivity : GenericActivity() {
             Log.d("$TAG savedInstanceState is null but intent isn't, handling it")
             handleIntent(intent)
         }
+
+        requestDialerRole()
     }
 
     override fun onPause() {
@@ -438,6 +445,21 @@ class MainActivity : GenericActivity() {
         handleIntent(intent)
     }
 
+    override fun onActivityResult(
+        requestCode: Int,
+        resultCode: Int,
+        data: Intent?,
+        caller: ComponentCaller
+    ) {
+        if (requestCode == DIALER_ROLE_REQUEST_CODE) {
+            if (resultCode == RESULT_OK) {
+                Log.i("$TAG Dialer role was granted!")
+            } else {
+                Log.w("$TAG Dialer role was denied!")
+            }
+        }
+    }
+
     @SuppressLint("RtlHardcoded")
     fun toggleDrawerMenu() {
         if (binding.drawerMenu.isDrawerOpen(Gravity.LEFT)) {
@@ -849,4 +871,16 @@ class MainActivity : GenericActivity() {
             }
         }
     }
+
+    private fun requestDialerRole() {
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
+            val roleManager: RoleManager = getSystemService(Context.ROLE_SERVICE) as RoleManager
+            val shouldRequestRole = roleManager.isRoleAvailable(RoleManager.ROLE_DIALER) &&
+                    !roleManager.isRoleHeld(RoleManager.ROLE_DIALER)
+            if (shouldRequestRole) {
+                val intent = roleManager.createRequestRoleIntent(RoleManager.ROLE_DIALER)
+                startActivityForResult(intent, DIALER_ROLE_REQUEST_CODE)
+            }
+        }
+    }
 }