android: show info for Xiaomi users about autostart restrictions (#5295)

* android: show info for Xiaomi users about autostart restrictions

* text and placement

* update strings

---------

Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>

apps/multiplatform/android/src/main/java/chat/simplex/app/SimplexApp.kt

@@ -332,6 +332,8 @@ class SimplexApp: Application(), LifecycleEventObserver {
         NetworkObserver.shared.restartNetworkObserver()
       }
 
+      override fun androidIsXiaomiDevice(): Boolean = setOf("xiaomi", "redmi", "poco").contains(Build.BRAND.lowercase())
+
       @SuppressLint("SourceLockedOrientationActivity")
       @Composable
       override fun androidLockPortraitOrientation() {

apps/multiplatform/android/src/main/java/chat/simplex/app/SimplexService.kt

@@ -497,6 +497,12 @@ class SimplexService: Service() {
               Modifier.padding(bottom = 8.dp)
             )
             Text(annotatedStringResource(MR.strings.turn_off_battery_optimization))
+
+            if (platform.androidIsXiaomiDevice() && (mode == NotificationsMode.PERIODIC || mode == NotificationsMode.SERVICE)) {
+              Text(annotatedStringResource(MR.strings.xiaomi_ignore_battery_optimization),
+                Modifier.padding(top = 8.dp)
+              )
+            }
           }
         },
         dismissButton = {
@@ -623,7 +629,7 @@ class SimplexService: Service() {
 
     fun isBackgroundAllowed(): Boolean = isIgnoringBatteryOptimizations() && !isBackgroundRestricted()
 
-    fun isIgnoringBatteryOptimizations(): Boolean {
+    private fun isIgnoringBatteryOptimizations(): Boolean {
       val powerManager = androidAppContext.getSystemService(Application.POWER_SERVICE) as PowerManager
       return powerManager.isIgnoringBatteryOptimizations(androidAppContext.packageName)
     }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/platform/Platform.kt

@@ -26,6 +26,7 @@ interface PlatformInterface {
   fun androidPictureInPictureAllowed(): Boolean = true
   fun androidCallEnded() {}
   fun androidRestartNetworkObserver() {}
+  fun androidIsXiaomiDevice(): Boolean = false
   val androidApiLevel: Int? get() = null
   @Composable fun androidLockPortraitOrientation() {}
   suspend fun androidAskToAllowBackgroundCalls(): Boolean = true

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/NotificationsSettingsView.kt

@@ -1,11 +1,10 @@
 package chat.simplex.common.views.usersettings
 
 import SectionBottomSpacer
+import SectionTextFooter
 import SectionView
 import SectionViewSelectable
 import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
@@ -16,6 +15,7 @@ import androidx.compose.ui.text.intl.Locale
 import androidx.compose.ui.text.style.TextOverflow
 import chat.simplex.common.model.*
 import chat.simplex.common.platform.*
+import chat.simplex.common.ui.theme.DEFAULT_PADDING_HALF
 import chat.simplex.common.views.helpers.*
 import chat.simplex.res.MR
 import kotlin.collections.ArrayList
@@ -77,6 +77,9 @@ fun NotificationsSettingsLayout(
           color = MaterialTheme.colors.secondary
         )
       }
+      if (platform.androidIsXiaomiDevice() && (notificationsMode.value == NotificationsMode.PERIODIC || notificationsMode.value == NotificationsMode.SERVICE)) {
+        SectionTextFooter(stringResource(MR.strings.xiaomi_ignore_battery_optimization))
+      }
     }
     SectionBottomSpacer()
   }
@@ -91,6 +94,9 @@ fun NotificationsModeView(
   ColumnWithScrollBar {
     AppBarTitle(stringResource(MR.strings.settings_notifications_mode_title).lowercase().capitalize(Locale.current))
     SectionViewSelectable(null, notificationsMode, modes, onNotificationsModeSelected)
+    if (platform.androidIsXiaomiDevice() && (notificationsMode.value == NotificationsMode.PERIODIC || notificationsMode.value == NotificationsMode.SERVICE)) {
+      SectionTextFooter(stringResource(MR.strings.xiaomi_ignore_battery_optimization))
+    }
   }
 }
 

apps/multiplatform/common/src/commonMain/resources/MR/base/strings.xml

@@ -191,9 +191,9 @@
   <string name="icon_descr_instant_notifications">Instant notifications</string>
   <string name="service_notifications">Instant notifications!</string>
   <string name="service_notifications_disabled">Instant notifications are disabled!</string>
-  <string name="to_preserve_privacy_simplex_has_background_service_instead_of_push_notifications_it_uses_a_few_pc_battery"><![CDATA[To preserve your privacy, instead of push notifications the app has a <b>SimpleX background service</b> – it uses a few percent of the battery per day.]]></string>
+  <string name="to_preserve_privacy_simplex_has_background_service_instead_of_push_notifications_it_uses_a_few_pc_battery"><![CDATA[To improve privacy, <b>SimpleX runs in background</b> instead of using push notifications.]]></string>
   <string name="it_can_disabled_via_settings_notifications_still_shown"><![CDATA[<b>It can be disabled via settings</b> – notifications will still be shown while the app is running.]]></string>
-  <string name="turn_off_battery_optimization"><![CDATA[To use it, please <b>allow SimpleX to run in background</b> in the next dialog. Otherwise, the notifications will be disabled.]]></string>
+  <string name="turn_off_battery_optimization"><![CDATA[<b>Allow it</b> in the next dialog to receive notifications instantly.]]></string>
   <string name="turning_off_service_and_periodic">Battery optimization is active, turning off background service and periodic requests for new messages. You can re-enable them via settings.</string>
   <string name="periodic_notifications">Periodic notifications</string>
   <string name="periodic_notifications_disabled">Periodic notifications are disabled!</string>
@@ -210,6 +210,7 @@
   <string name="enter_passphrase_notification_desc">To receive notifications, please, enter the database passphrase</string>
   <string name="database_initialization_error_title">Can\'t initialize the database</string>
   <string name="database_initialization_error_desc">The database is not working correctly. Tap to learn more</string>
+  <string name="xiaomi_ignore_battery_optimization"><![CDATA[<b>Xiaomi devices</b>: please enable Autostart in the system settings for notifications to work.]]></string>
 
   <!-- SimpleX Chat foreground Service -->
   <string name="simplex_service_notification_title">SimpleX Chat service</string>