Ask for power optimisation disabling on Android

sbapp/buildozer.spec

@@ -29,7 +29,7 @@ android.presplash_color = #00000000
 orientation = portrait
 fullscreen = 0
 
-android.permissions = INTERNET,POST_NOTIFICATIONS,WAKE_LOCK,FOREGROUND_SERVICE,CHANGE_WIFI_MULTICAST_STATE,BLUETOOTH_CONNECT,ACCESS_NETWORK_STATE,ACCESS_FINE_LOCATION,ACCESS_COARSE_LOCATION,MANAGE_EXTERNAL_STORAGE,ACCESS_BACKGROUND_LOCATION,RECORD_AUDIO
+android.permissions = INTERNET,POST_NOTIFICATIONS,WAKE_LOCK,FOREGROUND_SERVICE,CHANGE_WIFI_MULTICAST_STATE,BLUETOOTH_CONNECT,ACCESS_NETWORK_STATE,ACCESS_FINE_LOCATION,ACCESS_COARSE_LOCATION,MANAGE_EXTERNAL_STORAGE,ACCESS_BACKGROUND_LOCATION,RECORD_AUDIO,REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
 
 android.api = 31
 android.minapi = 24

sbapp/main.py

@@ -406,6 +406,20 @@ class SidebandApp(MDApp):
         else:
             self.open_conversations()
 
+        if RNS.vendor.platformutils.is_android():
+            if self.sideband.getstate("android.power_restricted", allow_cache=False):
+                RNS.log("Android power restrictions detected, background connectivity will not work. Asking for permissions.", RNS.LOG_DEBUG)
+                def pm_job(dt):
+                    Settings = autoclass("android.provider.Settings")
+                    Intent = autoclass("android.content.Intent")
+                    Uri = autoclass("android.net.Uri")
+
+                    requestIntent = Intent()
+                    requestIntent.setAction(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS)
+                    requestIntent.setData(Uri.parse("package:io.unsigned.sideband"))
+                    mActivity.startActivity(requestIntent)
+                Clock.schedule_once(pm_job, 1.5)
+
         if not self.root.ids.screen_manager.has_screen("messages_screen"):
             self.messages_screen = Builder.load_string(messages_screen_kv)
             self.messages_screen.app = self