Settings: add a link to the notification settings.

app/src/main/java/com/etesync/syncadapter/ui/AppSettingsActivity.kt

@@ -10,10 +10,12 @@ package com.etesync.syncadapter.ui
 
 import android.content.Intent
 import android.os.AsyncTask
+import android.os.Build
 import android.os.Bundle
 import com.google.android.material.snackbar.Snackbar
 import androidx.preference.*
 import com.etesync.syncadapter.App
+import com.etesync.syncadapter.BuildConfig
 import com.etesync.syncadapter.R
 import com.etesync.syncadapter.model.ServiceDB
 import com.etesync.syncadapter.model.Settings
@@ -63,6 +65,18 @@ class AppSettingsActivity : BaseActivity() {
         override fun onCreatePreferences(bundle: Bundle?, s: String?) {
             addPreferencesFromResource(R.xml.settings_app)
 
+            findPreference("notification_settings").apply {
+                if (Build.VERSION.SDK_INT >= 26)
+                    onPreferenceClickListener = Preference.OnPreferenceClickListener {
+                        startActivity(Intent(android.provider.Settings.ACTION_APP_NOTIFICATION_SETTINGS).apply {
+                            putExtra(android.provider.Settings.EXTRA_APP_PACKAGE, BuildConfig.APPLICATION_ID)
+                        })
+                        false
+                    }
+                else
+                    isVisible = false
+            }
+
             prefResetHints = findPreference("reset_hints")
 
             prefOverrideProxy = findPreference("override_proxy") as SwitchPreferenceCompat

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

@@ -86,6 +86,8 @@
     <!-- AppSettingsActivity -->
     <string name="app_settings">Settings</string>
     <string name="app_settings_user_interface">User interface</string>
+    <string name="app_settings_notification_settings">Notification settings</string>
+    <string name="app_settings_notification_settings_summary">Manage notification channels and their settings</string>
     <string name="app_settings_reset_hints">Reset hints</string>
     <string name="app_settings_reset_hints_summary">Re-enables hints which have been dismissed previously</string>
     <string name="app_settings_reset_hints_success">All hints will be shown again</string>

app/src/main/res/xml/settings_app.xml

@@ -10,6 +10,10 @@
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
 
     <PreferenceCategory android:title="@string/app_settings_user_interface">
+        <Preference
+            android:key="notification_settings"
+            android:title="@string/app_settings_notification_settings"
+            android:summary="@string/app_settings_notification_settings_summary"/>
 
         <SwitchPreferenceCompat
             android:key="show_change_notification"