Add API34 compatibility for networking & battery

Author: jfversluis

DeviceTests/DeviceTests.Android/Properties/AndroidManifest.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0.1.0" package="com.xamarin.essentials.devicetests" android:installLocation="auto">
 	<uses-sdk android:minSdkVersion="19" android:targetSdkVersion="33" />
-  <uses-permission android:name="android.permission.HIGH_SAMPLING_RATE_SENSORS" />
-  <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+	<uses-permission android:name="android.permission.HIGH_SAMPLING_RATE_SENSORS" />
+	<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
 	<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
 	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 	<uses-permission android:name="android.permission.BATTERY_STATS" />

Xamarin.Essentials/Battery/Battery.android.cs

@@ -15,7 +15,7 @@ static void StartEnergySaverListeners()
                 return;
 
             powerReceiver = new EnergySaverBroadcastReceiver(OnEnergySaverChanged);
-            Platform.AppContext.RegisterReceiver(powerReceiver, new IntentFilter(PowerManager.ActionPowerSaveModeChanged));
+            Platform.RegisterBroadcastReceiver(powerReceiver, new IntentFilter(PowerManager.ActionPowerSaveModeChanged), false);
         }
 
         static void StopEnergySaverListeners()
@@ -52,7 +52,7 @@ static void StartBatteryListeners()
             Permissions.EnsureDeclared<Permissions.Battery>();
 
             batteryReceiver = new BatteryBroadcastReceiver(OnBatteryInfoChanged);
-            Platform.AppContext.RegisterReceiver(batteryReceiver, new IntentFilter(Intent.ActionBatteryChanged));
+            Platform.RegisterBroadcastReceiver(batteryReceiver, new IntentFilter(Intent.ActionBatteryChanged), false);
         }
 
         static void StopBatteryListeners()
@@ -76,7 +76,7 @@ static double PlatformChargeLevel
                 Permissions.EnsureDeclared<Permissions.Battery>();
 
                 using (var filter = new IntentFilter(Intent.ActionBatteryChanged))
-                using (var battery = Platform.AppContext.RegisterReceiver(null, filter))
+                using (var battery = Platform.RegisterBroadcastReceiver(null, filter, false))
                 {
                     var level = battery.GetIntExtra(BatteryManager.ExtraLevel, -1);
                     var scale = battery.GetIntExtra(BatteryManager.ExtraScale, -1);
@@ -96,7 +96,7 @@ static BatteryState PlatformState
                 Permissions.EnsureDeclared<Permissions.Battery>();
 
                 using (var filter = new IntentFilter(Intent.ActionBatteryChanged))
-                using (var battery = Platform.AppContext.RegisterReceiver(null, filter))
+                using (var battery = Platform.RegisterBroadcastReceiver(null, filter, false))
                 {
                     var status = battery.GetIntExtra(BatteryManager.ExtraStatus, -1);
                     switch (status)
@@ -123,7 +123,7 @@ static BatteryPowerSource PlatformPowerSource
                 Permissions.EnsureDeclared<Permissions.Battery>();
 
                 using (var filter = new IntentFilter(Intent.ActionBatteryChanged))
-                using (var battery = Platform.AppContext.RegisterReceiver(null, filter))
+                using (var battery = Platform.RegisterBroadcastReceiver(null, filter, false))
                 {
                     var chargePlug = battery.GetIntExtra(BatteryManager.ExtraPlugged, -1);
 

Xamarin.Essentials/Connectivity/Connectivity.android.cs

@@ -34,7 +34,7 @@ static void StartListeners()
 
             conectivityReceiver = new ConnectivityBroadcastReceiver(OnConnectivityChanged);
 
-            Platform.AppContext.RegisterReceiver(conectivityReceiver, filter);
+            Platform.RegisterBroadcastReceiver(conectivityReceiver, filter, false);
         }
 
         static void StopListeners()

Xamarin.Essentials/Platform/Platform.android.cs

@@ -122,6 +122,19 @@ static void CheckAppActions(AndroidIntent intent)
             }
         }
 
+        internal static AndroidIntent RegisterBroadcastReceiver(BroadcastReceiver receiver, IntentFilter filter, bool exported)
+        {
+            if (HasApiLevel(34))
+            {
+                var flags = exported ? ReceiverFlags.Exported : ReceiverFlags.NotExported;
+
+                // Explicit cast of flags because of: https://github.com/xamarin/xamarin-android/issues/7503
+                return AppContext.RegisterReceiver(receiver, filter, (ActivityFlags)flags);
+            }
+
+            return AppContext.RegisterReceiver(receiver, filter);
+        }
+
         internal static bool HasSystemFeature(string systemFeature)
         {
             var packageManager = AppContext.PackageManager;