Add ignore battery optimization option

app/src/main/AndroidManifest.xml

@@ -9,6 +9,7 @@
 	<uses-permission android:name="android.permission.WAKE_LOCK" />
 	<uses-permission android:name="android.permission.VIBRATE" />
 	<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+	<uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
 
 	<application
 		android:name="org.koitharu.kotatsu.KotatsuApp"

app/src/main/java/org/koitharu/kotatsu/settings/TrackerSettingsFragment.kt

@@ -1,17 +1,23 @@
 package org.koitharu.kotatsu.settings
 
+import android.annotation.SuppressLint
+import android.content.ActivityNotFoundException
+import android.content.Context
 import android.content.Intent
 import android.content.SharedPreferences
 import android.net.Uri
 import android.os.Build
 import android.os.Bundle
+import android.os.PowerManager
 import android.provider.Settings
 import android.text.style.URLSpan
 import android.view.View
+import androidx.core.net.toUri
 import androidx.core.text.buildSpannedString
 import androidx.core.text.inSpans
 import androidx.preference.MultiSelectListPreference
 import androidx.preference.Preference
+import com.google.android.material.snackbar.Snackbar
 import kotlinx.coroutines.launch
 import org.koin.android.ext.android.inject
 import org.koitharu.kotatsu.R
@@ -23,6 +29,8 @@ import org.koitharu.kotatsu.tracker.domain.TrackingRepository
 import org.koitharu.kotatsu.tracker.work.TrackerNotificationChannels
 import org.koitharu.kotatsu.utils.ext.viewLifecycleScope
 
+private const val KEY_IGNORE_DOZE = "ignore_dose"
+
 class TrackerSettingsFragment :
 	BasePreferenceFragment(R.string.check_for_new_chapters),
 	SharedPreferences.OnSharedPreferenceChangeListener {
@@ -50,6 +58,9 @@ class TrackerSettingsFragment :
 
 	override fun onResume() {
 		super.onResume()
+		findPreference<Preference>(KEY_IGNORE_DOZE)?.run {
+			isVisible = isDozeIgnoreAvailable(context)
+		}
 		updateCategoriesSummary()
 		updateNotificationsSummary()
 	}
@@ -95,6 +106,10 @@ class TrackerSettingsFragment :
 				startActivity(CategoriesActivity.newIntent(preference.context))
 				true
 			}
+			KEY_IGNORE_DOZE -> {
+				startIgnoreDoseActivity(preference.context)
+				true
+			}
 			else -> super.onPreferenceTreeClick(preference)
 		}
 	}
@@ -122,4 +137,34 @@ class TrackerSettingsFragment :
 			pref.summary = getString(R.string.enabled_d_of_d, count[0], count[1])
 		}
 	}
+
+	@SuppressLint("BatteryLife")
+	private fun startIgnoreDoseActivity(context: Context) {
+		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+			Snackbar.make(listView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT).show()
+			return
+		}
+		val packageName = context.packageName
+		val powerManager = context.getSystemService(Context.POWER_SERVICE) as PowerManager
+		if (!powerManager.isIgnoringBatteryOptimizations(packageName)) {
+			try {
+				val intent = Intent(
+					Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS,
+					"package:$packageName".toUri(),
+				)
+				startActivity(intent)
+			} catch (e: ActivityNotFoundException) {
+				Snackbar.make(listView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT).show()
+			}
+		}
+	}
+
+	private fun isDozeIgnoreAvailable(context: Context): Boolean {
+		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+			return false
+		}
+		val packageName = context.packageName
+		val powerManager = context.getSystemService(Context.POWER_SERVICE) as PowerManager
+		return !powerManager.isIgnoringBatteryOptimizations(packageName)
+	}
 }

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

@@ -296,4 +296,6 @@
 	<string name="default_mode">Default mode</string>
 	<string name="detect_reader_mode">Autodetect reader mode</string>
 	<string name="detect_reader_mode_summary">Automatically detect if manga is webtoon</string>
+	<string name="disable_battery_optimization">Disable battery optimization</string>
+	<string name="disable_battery_optimization_summary">Helps with background updates checks</string>
 </resources>

app/src/main/res/xml/pref_tracker.xml

@@ -22,11 +22,20 @@
 		android:title="@string/favourites_categories" />
 
 	<Preference
+		android:dependency="tracker_enabled"
 		android:fragment="org.koitharu.kotatsu.settings.NotificationSettingsLegacyFragment"
 		android:key="notifications_settings"
-		android:dependency="tracker_enabled"
 		android:title="@string/notifications_settings" />
 
+	<Preference
+		android:dependency="tracker_enabled"
+		android:key="ignore_dose"
+		android:persistent="false"
+		android:summary="@string/disable_battery_optimization_summary"
+		android:title="@string/disable_battery_optimization"
+		app:allowDividerAbove="true"
+		app:isPreferenceVisible="false" />
+
 	<org.koitharu.kotatsu.settings.utils.LinksPreference
 		android:icon="@drawable/ic_info_outline"
 		android:key="track_warning"