Android >= 12: Add link in preferences to enable opening links

app/src/main/java/net/vonforst/evmap/fragment/preference/UiSettingsFragment.kt

@@ -1,8 +1,13 @@
 package net.vonforst.evmap.fragment.preference
 
+import android.content.Intent
 import android.content.SharedPreferences
+import android.net.Uri
+import android.os.Build
 import android.os.Bundle
+import android.provider.Settings
 import androidx.preference.ListPreference
+import androidx.preference.Preference
 import net.vonforst.evmap.R
 import net.vonforst.evmap.ui.getAppLocale
 import net.vonforst.evmap.ui.updateAppLocale
@@ -20,6 +25,9 @@ class UiSettingsFragment : BaseSettingsFragment() {
             updateAppLocale(newValue as String)
             true
         }
+
+        val appLinkPref = findPreference<Preference>("applink_associate")!!
+        appLinkPref.isVisible = Build.VERSION.SDK_INT >= Build.VERSION_CODES.S
     }
 
     override fun onResume() {
@@ -34,4 +42,21 @@ class UiSettingsFragment : BaseSettingsFragment() {
             }
         }
     }
+
+    override fun onPreferenceTreeClick(preference: Preference): Boolean {
+        when (preference.key) {
+            "applink_associate" -> {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+                    val context = context ?: return false
+                    val intent = Intent(
+                        Settings.ACTION_APP_OPEN_BY_DEFAULT_SETTINGS,
+                        Uri.parse("package:${context.packageName}")
+                    )
+                    context.startActivity(intent)
+                }
+                return true
+            }
+        }
+        return super.onPreferenceTreeClick(preference)
+    }
 }

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

@@ -284,4 +284,6 @@
     <string name="prediction_only">(nur %s)</string>
     <string name="prediction_dc_plugs_only">DC-Anschlüsse</string>
     <string name="data_source_switched_to">Datenquelle zu %s umgeschaltet</string>
+    <string name="pref_applink_associate">Unterstützte Links öffnen</string>
+    <string name="pref_applink_associate_summary">von goingelectric.de und openchargemap.org</string>
 </resources>

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

@@ -283,4 +283,6 @@
     <string name="prediction_only">(%s only)</string>
     <string name="prediction_dc_plugs_only">DC plugs</string>
     <string name="data_source_switched_to">Data source switched to %s</string>
+    <string name="pref_applink_associate">Open supported links</string>
+    <string name="pref_applink_associate_summary">from goingelectric.de and openchargemap.org</string>
 </resources>

app/src/main/res/xml/settings_ui.xml

@@ -28,4 +28,8 @@
         android:summaryOn="@string/pref_navigate_use_maps_on"
         android:summaryOff="@string/pref_navigate_use_maps_off"
         android:defaultValue="true" />
+    <Preference
+        android:key="applink_associate"
+        android:title="@string/pref_applink_associate"
+        android:summary="@string/pref_applink_associate_summary" />
 </PreferenceScreen>