#8 save changed sound in SharedPreferences

app/src/main/java/com/github/arburk/vscp/app/settings/AppSettingsActivity.kt

@@ -49,22 +49,24 @@ class AppSettingsActivity : AppCompatActivity(), PreferenceFragmentCompat.OnPref
   class SettingsFragment : PreferenceFragmentCompat() {
 
     private val soundSelectionEnabler = SoundSelectionEnabler()
-    private var ringtoneUriNextLevel: Uri? = null
-    private var ringtoneUriWarning: Uri? = null
 
     private val nextLevelPicker =
-      registerForActivityResult(PickRingtone().apply { selectedRingtone = ringtoneUriNextLevel }) { uri: Uri? ->
+      registerForActivityResult(PickRingtoneContract().apply {
+        sharedPrefKeyRingtone = pref_key_sound_next_round
+      }) { uri: Uri? ->
         if (uri != null) {
-          ringtoneUriNextLevel = uri
-          Log.v("AppSettingsActivity", "set nextLevel sound to $ringtoneUriNextLevel")
+          applySoundSelection(pref_key_sound_next_round, uri)
+          Log.v("AppSettingsActivity", "set nextLevel sound to $uri")
         }
       }
 
     private val warningPicker =
-      registerForActivityResult(PickRingtone().apply { selectedRingtone = ringtoneUriWarning }) { uri: Uri? ->
+      registerForActivityResult(PickRingtoneContract().apply {
+        sharedPrefKeyRingtone = pref_key_sound_warning_of_next_round
+      }) { uri: Uri? ->
         if (uri != null) {
-          ringtoneUriWarning = uri
-          Log.v("AppSettingsActivity", "set warning sound to $ringtoneUriWarning")
+          applySoundSelection(pref_key_sound_warning_of_next_round, uri)
+          Log.v("AppSettingsActivity", "set warning sound to $uri")
         }
       }
 
@@ -83,7 +85,12 @@ class AppSettingsActivity : AppCompatActivity(), PreferenceFragmentCompat.OnPref
 
       findPreference<NotificationPreference>(pref_key_notify_settings)?.isVisible =
         Build.VERSION.SDK_INT >= Build.VERSION_CODES.O
+    }
 
+    private fun applySoundSelection(prefName: String, uri: Uri) {
+      findPreference<NotificationSoundSelector>(prefName)?.apply {
+        updateRingtone(uri)
+      }
     }
 
     inner class SoundSelectionEnabler : OnPreferenceChangeListener {

app/src/main/java/com/github/arburk/vscp/app/settings/NotificationSoundSelector.kt

@@ -2,23 +2,54 @@ package com.github.arburk.vscp.app.settings
 
 import android.content.Context
 import android.media.RingtoneManager
+import android.net.Uri
 import android.util.AttributeSet
+import android.util.Log
 import androidx.activity.result.ActivityResultLauncher
 import androidx.preference.Preference
+import androidx.preference.PreferenceManager
 
 
 class NotificationSoundSelector(context: Context, attrs: AttributeSet?) : Preference(context, attrs),
-  Preference.OnPreferenceClickListener {
+  Preference.OnPreferenceClickListener, Preference.OnPreferenceChangeListener {
+
+  private var _ringtone: Uri? = null
+  val ringtone: Uri? get() = _ringtone
 
   var ringtoneSelectorLauncher: ActivityResultLauncher<Int>? = null
 
   init {
+    Log.v("NotificationSoundSelector", "configure $key")
     onPreferenceClickListener = this
+
+    // TODO add a PreferenceManagerClass handling those things
+
+    PreferenceManager.getDefaultSharedPreferences(context)
+      .getString(key, _ringtone?.toString())?.also {
+        if (it.isNotBlank()) {
+          _ringtone = Uri.parse(it)
+          Log.v("NotificationSoundSelector", "initialized to $_ringtone")
+        }
+      }
+  }
+
+  fun updateRingtone(uri: Uri) {
+    Log.v("NotificationSoundSelector","update $key to $uri")
+    _ringtone = uri
+    PreferenceManager.getDefaultSharedPreferences(context).edit().apply {
+      putString(key, uri.toString())
+      apply()
+    }
   }
 
   override fun onPreferenceClick(preference: Preference): Boolean {
     ringtoneSelectorLauncher?.launch(RingtoneManager.TYPE_NOTIFICATION)
     return true
   }
 
+  override fun onPreferenceChange(preference: Preference, newValue: Any?): Boolean {
+    Log.v("NotificationSoundSelector", "onPreferenceChange: $newValue")
+    return true
+  }
+
 }

app/src/main/java/com/github/arburk/vscp/app/settings/PickRingtoneContract.kt

@@ -0,0 +1,45 @@
+package com.github.arburk.vscp.app.settings
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.media.RingtoneManager
+import android.net.Uri
+import android.os.Build
+import android.util.Log
+import androidx.activity.result.contract.ActivityResultContract
+import androidx.preference.PreferenceManager
+
+class PickRingtoneContract : ActivityResultContract<Int, Uri?>() {
+
+  var sharedPrefKeyRingtone : String? = null
+
+  override fun createIntent(context: Context, input: Int) =
+    Intent(RingtoneManager.ACTION_RINGTONE_PICKER).apply {
+      putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, input)
+      val selectedRingtone = PreferenceManager.getDefaultSharedPreferences(context).getString(sharedPrefKeyRingtone, null)
+      if (!selectedRingtone.isNullOrBlank()) {
+        Log.v("PickRingtoneContract", "initialize to $selectedRingtone")
+        putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI, Uri.parse(selectedRingtone))
+      } else {
+        Log.v("PickRingtoneContract", "initialize to default")
+        putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_DEFAULT, true)
+        putExtra(
+          RingtoneManager.EXTRA_RINGTONE_DEFAULT_URI,
+          RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)
+        )
+      }
+    }
+
+  override fun parseResult(resultCode: Int, intent: Intent?): Uri? {
+    if (resultCode != Activity.RESULT_OK) {
+      return null
+    }
+
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+      return intent?.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI, Uri::class.java)
+    }
+
+    return intent?.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI)
+  }
+}

app/src/main/res/xml/root_preferences.xml

@@ -34,11 +34,13 @@
     <com.github.arburk.vscp.app.settings.NotificationSoundSelector
         app:key="sound_next_round"
         app:title="@string/sound_next_round"
+        app:persistent="true"
         app:summary="Select a sound played when next round starts"/>
 
     <com.github.arburk.vscp.app.settings.NotificationSoundSelector
         app:key="sound_warning_of_next_round"
         app:title="@string/sound_warning"
+        app:persistent="true"
         app:summary="Select a sound played as warning for next round"/>
 
   </PreferenceCategory>