android: Show memory warning once

src/android/app/src/main/java/org/yuzu/yuzu_emu/activities/EmulationActivity.kt

@@ -34,11 +34,14 @@ import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.WindowInsetsControllerCompat
 import androidx.navigation.fragment.NavHostFragment
+import androidx.preference.PreferenceManager
 import org.yuzu.yuzu_emu.NativeLibrary
 import org.yuzu.yuzu_emu.R
+import org.yuzu.yuzu_emu.YuzuApplication
 import org.yuzu.yuzu_emu.databinding.ActivityEmulationBinding
 import org.yuzu.yuzu_emu.features.settings.model.BooleanSetting
 import org.yuzu.yuzu_emu.features.settings.model.IntSetting
+import org.yuzu.yuzu_emu.features.settings.model.Settings
 import org.yuzu.yuzu_emu.features.settings.model.SettingsViewModel
 import org.yuzu.yuzu_emu.model.Game
 import org.yuzu.yuzu_emu.utils.ControllerMappingHelper
@@ -107,6 +110,8 @@ class EmulationActivity : AppCompatActivity(), SensorEventListener {
         inputHandler = InputHandler()
         inputHandler.initialize()
 
+        val preferences = PreferenceManager.getDefaultSharedPreferences(YuzuApplication.appContext)
+        if (!preferences.getBoolean(Settings.PREF_MEMORY_WARNING_SHOWN, false)) {
             if (MemoryUtil.isLessThan(MemoryUtil.REQUIRED_MEMORY, MemoryUtil.Gb)) {
                 Toast.makeText(
                     this,
@@ -121,6 +126,10 @@ class EmulationActivity : AppCompatActivity(), SensorEventListener {
                     ),
                     Toast.LENGTH_LONG
                 ).show()
+                preferences.edit()
+                    .putBoolean(Settings.PREF_MEMORY_WARNING_SHOWN, true)
+                    .apply()
+            }
         }
 
         // Start a foreground service to prevent the app from getting killed in the background

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/Settings.kt

@@ -110,6 +110,8 @@ class Settings {
         const val SECTION_THEME = "Theme"
         const val SECTION_DEBUG = "Debug"
 
+        const val PREF_MEMORY_WARNING_SHOWN = "MemoryWarningShown"
+
         const val PREF_OVERLAY_INIT = "OverlayInit"
         const val PREF_CONTROL_SCALE = "controlScale"
         const val PREF_CONTROL_OPACITY = "controlOpacity"