Info about background restrictions

app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt

@@ -166,6 +166,7 @@ class AppSettings private constructor(private val prefs: SharedPreferences) :
 		const val KEY_LOCAL_STORAGE = "local_storage"
 		const val KEY_READER_SWITCHERS = "reader_switchers"
 		const val KEY_TRACK_SOURCES = "track_sources"
+		const val KEY_TRACK_WARNING = "track_warning"
 		const val KEY_APP_UPDATE = "app_update"
 		const val KEY_APP_UPDATE_AUTO = "app_update_auto"
 		const val KEY_TRACKER_NOTIFICATIONS = "tracker_notifications"

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

@@ -4,6 +4,9 @@ import android.content.Intent
 import android.os.Build
 import android.os.Bundle
 import android.provider.Settings
+import android.text.style.URLSpan
+import androidx.core.text.buildSpannedString
+import androidx.core.text.inSpans
 import androidx.preference.MultiSelectListPreference
 import androidx.preference.Preference
 import org.koitharu.kotatsu.R
@@ -19,6 +22,17 @@ class TrackerSettingsFragment : BasePreferenceFragment(R.string.new_chapters_che
 
 		findPreference<MultiSelectListPreference>(AppSettings.KEY_TRACK_SOURCES)
 			?.summaryProvider = MultiSummaryProvider(R.string.dont_check)
+		val warningPreference = findPreference<Preference>(AppSettings.KEY_TRACK_WARNING)
+		if (warningPreference != null) {
+			warningPreference.summary = buildSpannedString {
+				append(getString(R.string.tracker_warning))
+				append(" ")
+				inSpans(URLSpan("https://dontkillmyapp.com/")) {
+					append(getString(R.string.read_more))
+				}
+			}
+			warningPreference
+		}
 	}
 
 	override fun onPreferenceTreeClick(preference: Preference?): Boolean {

app/src/main/java/org/koitharu/kotatsu/settings/utils/LinksPreference.kt

@@ -0,0 +1,23 @@
+package org.koitharu.kotatsu.settings.utils
+
+import android.content.Context
+import android.text.method.LinkMovementMethod
+import android.util.AttributeSet
+import android.widget.TextView
+import androidx.preference.Preference
+import androidx.preference.PreferenceViewHolder
+
+class LinksPreference @JvmOverloads constructor(
+	context: Context?,
+	attrs: AttributeSet? = null,
+	defStyleAttr: Int = androidx.preference.R.attr.preferenceStyle,
+	defStyleRes: Int = 0,
+) : Preference(context, attrs, defStyleAttr, defStyleRes) {
+
+
+	override fun onBindViewHolder(holder: PreferenceViewHolder) {
+		super.onBindViewHolder(holder)
+		val summaryView = holder.findViewById(android.R.id.summary) as TextView
+		summaryView.movementMethod = LinkMovementMethod.getInstance()
+	}
+}