Add preference to disable battery optimization

app/src/main/AndroidManifest.xml

@@ -4,6 +4,7 @@
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
 
     <application
         android:name=".ReadropsApp"

app/src/main/java/com/readrops/app/more/preferences/PreferencesScreen.kt

@@ -1,5 +1,11 @@
 package com.readrops.app.more.preferences
 
+import android.annotation.SuppressLint
+import android.content.Intent
+import android.net.Uri
+import android.os.Build
+import android.os.PowerManager
+import android.provider.Settings
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.padding
@@ -9,10 +15,14 @@ import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.Scaffold
+import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
@@ -21,12 +31,14 @@ import cafe.adriel.voyager.koin.getScreenModel
 import cafe.adriel.voyager.navigator.LocalNavigator
 import cafe.adriel.voyager.navigator.currentOrThrow
 import com.readrops.app.R
+import com.readrops.app.more.preferences.components.BasePreference
 import com.readrops.app.more.preferences.components.ListPreferenceWidget
 import com.readrops.app.more.preferences.components.PreferenceHeader
 import com.readrops.app.more.preferences.components.SwitchPreferenceWidget
 import com.readrops.app.sync.SyncWorker
 import com.readrops.app.util.components.AndroidScreen
 import com.readrops.app.util.components.CenteredProgressIndicator
+import kotlinx.coroutines.launch
 
 
 class PreferencesScreen : AndroidScreen() {
@@ -38,6 +50,9 @@ class PreferencesScreen : AndroidScreen() {
         val context = LocalContext.current
         val screenModel = getScreenModel<PreferencesScreenModel>()
 
+        val coroutineScope = rememberCoroutineScope()
+        val snackbarHostState = remember { SnackbarHostState() }
+
         val state by screenModel.state.collectAsStateWithLifecycle()
 
         Scaffold(
@@ -55,7 +70,8 @@ class PreferencesScreen : AndroidScreen() {
                         }
                     }
                 )
-            }
+            },
+            snackbarHost = { SnackbarHost(snackbarHostState) }
         ) { paddingValues ->
             Box(
                 modifier = Modifier.padding(paddingValues)
@@ -64,6 +80,7 @@ class PreferencesScreen : AndroidScreen() {
                     is PreferencesScreenState.Loading -> {
                         CenteredProgressIndicator()
                     }
+
                     else -> {
                         val loadedState = (state as PreferencesScreenState.Loaded)
 
@@ -99,6 +116,34 @@ class PreferencesScreen : AndroidScreen() {
                                 onValueChange = { SyncWorker.startPeriodically(context, it) }
                             )
 
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                                BasePreference(
+                                    title = stringResource(R.string.disable_battery_optimization),
+                                    subtitle = stringResource(R.string.disable_battery_optimization_subtitle),
+                                    onClick = {
+                                        val powerManager =
+                                            context.getSystemService("power") as PowerManager
+                                        val packageName = context.packageName
+
+                                        if (!powerManager.isIgnoringBatteryOptimizations(packageName)) {
+                                            @SuppressLint("BatteryLife")
+                                            val intent = Intent().apply {
+                                                action =
+                                                    Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
+                                                data = Uri.parse("package:$packageName")
+                                                addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                                            }
+
+                                            context.startActivity(intent)
+                                        } else {
+                                            coroutineScope.launch {
+                                                snackbarHostState.showSnackbar(context.getString(R.string.battery_optimization_already_disabled))
+                                            }
+                                        }
+                                    }
+                                )
+                            }
+
                             PreferenceHeader(text = stringResource(id = R.string.timeline))
 
                             ListPreferenceWidget(

app/src/main/res/values-fr/strings.xml

@@ -185,4 +185,7 @@
     <string name="large">Large</string>
     <string name="item_size">Taille des items</string>
     <string name="background_sync_already_running">Une synchronisation en arrière-plan est déjà en cours</string>
+    <string name="disable_battery_optimization">Désactiver l\'optimisation de la batterie</string>
+    <string name="disable_battery_optimization_subtitle">Peut aider à éviter que le système n\'empêche la synchronisation d\'arrière-plan</string>
+    <string name="battery_optimization_already_disabled">L\'optimisation de la batterie est déjà optimisée pour cette appli</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -194,4 +194,7 @@
     <string name="large">Large</string>
     <string name="item_size">Item size</string>
     <string name="background_sync_already_running">A background synchronization is already running</string>
+    <string name="disable_battery_optimization">Disable battery optimization</string>
+    <string name="disable_battery_optimization_subtitle">Can help with background synchronization not being killed by the system</string>
+    <string name="battery_optimization_already_disabled">Battery optimization already disabled for this app</string>
 </resources>