Fixed issue on Android - wasn't able to see incoming call when phone is locked \ app in background.

android/build.gradle

@@ -9,7 +9,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:4.0.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
@@ -26,7 +26,7 @@ apply plugin: 'kotlin-android'
 apply plugin: 'org.jetbrains.kotlin.android.extensions'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 33
 
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
@@ -48,4 +48,4 @@ dependencies {
     implementation 'com.github.bumptech.glide:glide:4.11.0'
     implementation 'com.google.code.gson:gson:2.8.6'
     annotationProcessor 'com.github.bumptech.glide:compiler:4.11.0'
-}
+}

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,6 @@
+#Wed Jul 19 13:11:43 EEST 2023
 distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-all.zip
 distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
+zipStoreBase=GRADLE_USER_HOME

android/src/main/kotlin/com/github/alezhka/flutter_incoming_call/CallBroadcastReceiver.kt

@@ -3,10 +3,12 @@ package com.github.alezhka.flutter_incoming_call
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
+import android.util.Log
 
 class CallBroadcastReceiver: BroadcastReceiver() {
 
     companion object {
+        private const val TAG = "CallBroadcastReceiver"
         private const val ACTION_STARTED = "ACTION_STARTED"
         private const val ACTION_DISMISS = "ACTION_DISMISS"
         private const val ACTION_ACCEPT = "ACTION_ACCEPT"
@@ -64,11 +66,13 @@ class CallBroadcastReceiver: BroadcastReceiver() {
                 callNotification.clearNotification(callData.notificationId)
 
                 Utils.backToForeground(context, FlutterIncomingCallPlugin.activity)
+                Log.d(TAG, "onReceive: EVENT_CALL_ACCEPT")
                 sendCallEvent(EVENT_CALL_ACCEPT, callData)
             }
             ACTION_DISMISS -> {
                 FlutterIncomingCallPlugin.ringtonePlayer?.stop()
                 callNotification.clearNotification(callData.notificationId)
+                Log.d(TAG, "onReceive: EVENT_CALL_DECLINE")
                 sendCallEvent(EVENT_CALL_DECLINE, callData)
             }
             ACTION_TIMEOUT -> {
@@ -79,6 +83,7 @@ class CallBroadcastReceiver: BroadcastReceiver() {
     }
 
     private fun sendCallEvent(event: String, callData: CallData) {
+        Log.d(TAG, "sendCallEvent $event; callData: $callData")
         val actionData = mapOf(
                 "uuid" to callData.uuid,
                 "name" to callData.name,
@@ -89,5 +94,4 @@ class CallBroadcastReceiver: BroadcastReceiver() {
         )
         FlutterIncomingCallPlugin.eventHandler.send(event, actionData)
     }
-
 }

android/src/main/kotlin/com/github/alezhka/flutter_incoming_call/CallNotification.kt

@@ -5,12 +5,10 @@ import android.app.NotificationChannel
 import android.app.NotificationManager
 import android.app.PendingIntent
 import android.content.Context
-import android.content.Intent
 import android.media.AudioAttributes
 import android.media.RingtoneManager
 import android.net.Uri
 import android.os.Build
-import android.util.Log
 import androidx.core.app.NotificationCompat
 
 
@@ -26,22 +24,28 @@ class CallNotification(private val context: Context) {
             } else {
                 Notification.PRIORITY_MAX
             }
+
+        private val pendingIntentFlag = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) (PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT) else PendingIntent.FLAG_UPDATE_CURRENT
     }
 
     fun showCallNotification(callData: CallData, config: PluginConfig) {
-        if(FlutterIncomingCallPlugin.ringtonePlayer == null) {
-            FlutterIncomingCallPlugin.ringtonePlayer = CallPlayer(context, config)
-        }
+        if (config.ringtone) {
+            if(FlutterIncomingCallPlugin.ringtonePlayer == null) {
+                FlutterIncomingCallPlugin.ringtonePlayer = CallPlayer(context, config)
+            }
 
-        FlutterIncomingCallPlugin.ringtonePlayer?.let {
-            if(!it.isPlaying()) it.play(callData)
+            FlutterIncomingCallPlugin.ringtonePlayer?.let {
+                if(!it.isPlaying()) it.play(callData)
+            }
         }
 
         val notificationID = callData.notificationId
         val declineIntent = CallBroadcastReceiver.declineIntent(context, callData)
         val acceptIntent = CallBroadcastReceiver.acceptIntent(context, callData)
-        val declinePi = PendingIntent.getBroadcast(context, 0, declineIntent, PendingIntent.FLAG_UPDATE_CURRENT)
-        val acceptPi = PendingIntent.getBroadcast(context, 0, acceptIntent, PendingIntent.FLAG_UPDATE_CURRENT)
+        val declinePi = PendingIntent.getBroadcast(context, 0, declineIntent, pendingIntentFlag)
+        val acceptPi = PendingIntent.getBroadcast(context, 0, acceptIntent, pendingIntentFlag)
+
+
         val soundUri: Uri = Uri.parse("android.resource://${context.packageName}/${R.raw.nosound}")
         val notification: Notification = NotificationCompat.Builder(context, config.channelId)
                 .setAutoCancel(true)
@@ -113,7 +117,7 @@ class CallNotification(private val context: Context) {
 
     private fun getCallerActivityPendingIntent(notificationID: Int, callData: CallData): PendingIntent? {
         val intent = IncomingCallActivity.start(callData)
-        return PendingIntent.getActivity(context, notificationID, intent, PendingIntent.FLAG_UPDATE_CURRENT)
+        return PendingIntent.getActivity(context, notificationID, intent, pendingIntentFlag)
     }
 
     private fun createNotificationChannel(manager: NotificationManager, soundUri: Uri?) {

android/src/main/kotlin/com/github/alezhka/flutter_incoming_call/FlutterIncomingCallPlugin.kt

@@ -4,6 +4,7 @@ import android.app.Activity
 import android.content.Context
 import android.os.Handler
 import android.os.Looper
+import android.util.Log
 import androidx.annotation.NonNull;
 
 import io.flutter.embedding.engine.plugins.FlutterPlugin
@@ -19,6 +20,7 @@ import io.flutter.plugin.common.MethodChannel.Result
 class FlutterIncomingCallPlugin: FlutterPlugin, MethodCallHandler, ActivityAware {
 
   companion object {
+    val TAG = "FlutterIncomingCallPlug"
     var activity: Activity? = null
     val eventHandler = EventStreamHandler()
     var ringtonePlayer: CallPlayer? = null
@@ -60,19 +62,20 @@ class FlutterIncomingCallPlugin: FlutterPlugin, MethodCallHandler, ActivityAware
       }
       "displayIncomingCall" -> {
         if(!isConfigured) {
+          android.util.Log.e(TAG, "onMethodCall displayIncomingCall: Not Configured")
           result.error("not_configured", "Not configured", null)
           return
         }
-        
+
         val callData = FactoryModels.parseCallData(call)
+        android.util.Log.d(TAG, "onMethodCall displayIncomingCall callData: $callData")
 
         context?.let {
-          if(Utils.isDeviceScreenLocked(it)) {
-            activity?.startActivity(IncomingCallActivity.start(callData))
-          } else {
-            notificationCall?.showCallNotification(callData, config!!)
-          }
+          Log.d(TAG, "onMethodCall displayIncomingCall")
+          notificationCall?.showCallNotification(callData, config!!)
           it.sendBroadcast(CallBroadcastReceiver.startedIntent(it, callData))
+        } ?: run {
+          android.util.Log.e(TAG, "onMethodCall displayIncomingCall: context is null")
         }
 
         result.success(null)
@@ -105,7 +108,7 @@ class FlutterIncomingCallPlugin: FlutterPlugin, MethodCallHandler, ActivityAware
   override fun onAttachedToActivity(binding: ActivityPluginBinding) {
     activity = binding.activity
     context = binding.activity
-    notificationCall = CallNotification(context!!)
+    notificationCall = CallNotification(binding.activity)
     callPrefs = CallPreferences(binding.activity)
   }
 
@@ -120,7 +123,7 @@ class FlutterIncomingCallPlugin: FlutterPlugin, MethodCallHandler, ActivityAware
     activity = binding.activity
     context = binding.activity
     callPrefs = CallPreferences(binding.activity)
-    notificationCall = CallNotification(context!!)
+    notificationCall = CallNotification(binding.activity)
   }
 
   override fun onDetachedFromActivity() {

android/src/main/kotlin/com/github/alezhka/flutter_incoming_call/IncomingCallActivity.kt

@@ -49,6 +49,8 @@ class IncomingCallActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O_MR1) {
+            setTurnScreenOn(true)
+            setShowWhenLocked(true)
             window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN
                     or WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
         } else {
@@ -60,9 +62,6 @@ class IncomingCallActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
 
         if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O_MR1) {
-            setTurnScreenOn(true)
-            setShowWhenLocked(true)
-
             val keyguardManager = getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager
             keyguardManager.requestDismissKeyguard(this, null)
         }

android/src/main/kotlin/com/github/alezhka/flutter_incoming_call/Utils.kt

@@ -9,64 +9,13 @@ import android.content.Intent
 import android.os.Build
 import android.provider.Settings
 import android.telephony.TelephonyManager
+import android.os.PowerManager
 
 
-object Utils {
 
-    fun isDeviceScreenLocked(context: Context): Boolean {
-        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            isDeviceLocked(context)
-        } else {
-            isPatternSet(context) || isPassOrPinSet(context)
-        }
-    }
 
-    /**
-     * @return true if pattern set, false if not (or if an issue when checking)
-     */
-    private fun isPatternSet(context: Context): Boolean {
-        val cr: ContentResolver = context.contentResolver
-        return try {
-            val lockPatternEnable: Int = Settings.Secure.getInt(cr, Settings.Secure.LOCK_PATTERN_ENABLED)
-            lockPatternEnable == 1
-        } catch (e: Settings.SettingNotFoundException) {
-            false
-        }
-    }
 
-    /**
-     * @return true if pass or pin set
-     */
-    private fun isPassOrPinSet(context: Context): Boolean {
-        val keyguardManager = context.getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager //api 16+
-        return keyguardManager.isKeyguardSecure
-    }
-
-    /**
-     * @return true if pass or pin or pattern locks screen
-     */
-    @TargetApi(Build.VERSION_CODES.M)
-    private fun isDeviceLocked(context: Context): Boolean {
-        val telMgr = context.getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
-        val simState = telMgr.simState
-        val keyguardManager = context.getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager //api 23+
-        return keyguardManager.isDeviceSecure && simState != TelephonyManager.SIM_STATE_ABSENT
-    }
-
-    /**
-     * @return Main activity class. 
-     */
-    fun getMainActivityClass(context: Context): Class<*>? {
-        val packageName = context.packageName
-        val launchIntent = context.packageManager.getLaunchIntentForPackage(packageName)
-        val className = launchIntent?.component?.className
-        return try {
-            className?.let{ Class.forName(it) }
-        } catch (e: ClassNotFoundException) {
-            e.printStackTrace()
-            null
-        }
-    }
+object Utils {
 
     /**
      * Back main activity to foreground.

android/src/main/kotlin/com/github/alezhka/flutter_incoming_call/models.kt

@@ -10,6 +10,7 @@ data class PluginConfig(
         val channelName: String,
         val channelDescription: String,
         val vibration: Boolean,
+        val ringtone: Boolean,
         val ringtonePath: String?,
         val duration: Long
 )
@@ -46,10 +47,11 @@ object FactoryModels {
         val channelId = call.argument("channelId") as String? ?: ""
         val channelName = call.argument("channelName") as String? ?: ""
         val channelDescription = call.argument("channelDescription") as String? ?: ""
-        val duration = (call.argument("duration") as Int? ?: 30000).toLong()
         val vibration = call.argument("vibration") as Boolean? ?: false
+        val ringtone = call.argument("ringtone") as Boolean? ?: false
         val ringtonePath = call.argument("ringtonePath") as String?
-        return PluginConfig(appName, channelId, channelName, channelDescription, vibration, ringtonePath, duration)
+        val duration = (call.argument("duration") as Int? ?: 30000).toLong()
+        return PluginConfig(appName, channelId, channelName, channelDescription, vibration, ringtone, ringtonePath, duration)
     }
 
     fun defaultConfig(): PluginConfig {
@@ -59,7 +61,8 @@ object FactoryModels {
         val channelDescription = "Call channel"
         val duration = 30000L
         val vibration = false
+        val ringtone = true
         val ringtonePath = "default"
-        return PluginConfig(appName, channelId, channelName, channelDescription, vibration, ringtonePath, duration)
+        return PluginConfig(appName, channelId, channelName, channelDescription, vibration, ringtone, ringtonePath, duration)
     }
 }

example/android/app/src/main/AndroidManifest.xml

@@ -55,6 +55,7 @@
             android:name="com.github.alezhka.flutter_incoming_call.IncomingCallActivity"
             android:theme="@style/AppCompatTheme"
             android:screenOrientation="portrait"
+            android:launchMode="singleTop"
             android:showOnLockScreen="true">
             <intent-filter>
                 <action android:name="com.github.alezhka.flutter_incoming_call.activity.ACTION_INCOMING_CALL" />

example/pubspec.lock

@@ -7,7 +7,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.6.1"
+    version: "2.8.1"
   boolean_selector:
     dependency: transitive
     description:
@@ -28,7 +28,7 @@ packages:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.1"
   clock:
     dependency: transitive
     description:
@@ -94,7 +94,7 @@ packages:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
+    version: "1.7.0"
   path:
     dependency: transitive
     description:
@@ -148,7 +148,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.0"
+    version: "0.4.2"
   typed_data:
     dependency: transitive
     description:

ios/Classes/SwiftFlutterIncomingCallPlugin.swift

@@ -335,11 +335,9 @@ public class SwiftFlutterIncomingCallPlugin: NSObject, FlutterPlugin, CXProvider
 
         if let callData = callsData[uuidString] {
             sendEvent(SwiftFlutterIncomingCallPlugin.EVENT_CALL_DECLINE, callData.toMap())
+            callsAttended[uuidString] = true        
         }
-
-        callsAttended.removeValue(forKey: uuidString)
-        callsData.removeValue(forKey: uuidString)
-
+
         action.fulfill()
     }
 
@@ -390,5 +388,4 @@ public class SwiftFlutterIncomingCallPlugin: NSObject, FlutterPlugin, CXProvider
         let audiosessionData = ToggleAudiosessionData(false)
         sendEvent(SwiftFlutterIncomingCallPlugin.EVENT_TOGGLE_AUDIOSESSION, audiosessionData.toMap())
     }
-
 }