added android client

android/app/src/main/java/io/narl/protonstream/settings/SettingsStore.kt

@@ -0,0 +1,21 @@
+package io.narl.protonstream.settings
+
+import android.content.Context
+
+class SettingsStore(context: Context) {
+    private val preferences = context.getSharedPreferences(NAME, Context.MODE_PRIVATE)
+
+    var wifiOnly: Boolean
+        get() = preferences.getBoolean(KEY_WIFI_ONLY, true)
+        set(value) { preferences.edit().putBoolean(KEY_WIFI_ONLY, value).apply() }
+
+    var backgroundAudio: Boolean
+        get() = preferences.getBoolean(KEY_BACKGROUND_AUDIO, true)
+        set(value) { preferences.edit().putBoolean(KEY_BACKGROUND_AUDIO, value).apply() }
+
+    private companion object {
+        const val NAME = "proton_stream_settings"
+        const val KEY_WIFI_ONLY = "wifi_only"
+        const val KEY_BACKGROUND_AUDIO = "background_audio"
+    }
+}