Unify getString for compatibility

(read the method's javadoc for why)

app/src/main/java/org/schabi/newpipe/error/ErrorInfo.kt

@@ -28,6 +28,7 @@ import org.schabi.newpipe.extractor.exceptions.YoutubeMusicPremiumContentExcepti
 import org.schabi.newpipe.ktx.isNetworkRelated
 import org.schabi.newpipe.player.mediasource.FailedMediaSource
 import org.schabi.newpipe.player.resolver.PlaybackResolver
+import org.schabi.newpipe.util.Localization
 import java.net.UnknownHostException
 
 /**
@@ -147,13 +148,11 @@ class ErrorInfo private constructor(
             private vararg val formatArgs: String,
         ) : Parcelable {
             fun getString(context: Context): String {
+                // use Localization.compatGetString() just in case context is not AppCompatActivity
                 return if (formatArgs.isEmpty()) {
-                    // use ContextCompat.getString() just in case context is not AppCompatActivity
-                    ContextCompat.getString(context, stringRes)
+                    Localization.compatGetString(context, stringRes)
                 } else {
-                    // ContextCompat.getString() with formatArgs does not exist, so we just
-                    // replicate its source code but with formatArgs
-                    ContextCompat.getContextForLanguage(context).getString(stringRes, *formatArgs)
+                    Localization.compatGetString(context, stringRes, *formatArgs)
                 }
             }
         }

app/src/main/java/org/schabi/newpipe/player/mediabrowser/MediaBrowserPlaybackPreparer.kt

@@ -6,7 +6,6 @@ import android.os.Bundle
 import android.os.ResultReceiver
 import android.support.v4.media.session.PlaybackStateCompat
 import android.util.Log
-import androidx.core.content.ContextCompat
 import androidx.core.net.toUri
 import com.google.android.exoplayer2.Player
 import com.google.android.exoplayer2.ext.mediasession.MediaSessionConnector.PlaybackPreparer
@@ -29,6 +28,7 @@ import org.schabi.newpipe.player.playqueue.PlaylistPlayQueue
 import org.schabi.newpipe.player.playqueue.SinglePlayQueue
 import org.schabi.newpipe.util.ChannelTabHelper
 import org.schabi.newpipe.util.ExtractorHelper
+import org.schabi.newpipe.util.Localization
 import org.schabi.newpipe.util.NavigationHelper
 import java.util.function.BiConsumer
 import java.util.function.Consumer
@@ -111,7 +111,7 @@ class MediaBrowserPlaybackPreparer(
     //region Errors
     private fun onUnsupportedError() {
         setMediaSessionError.accept(
-            ContextCompat.getString(context, R.string.content_not_supported),
+            Localization.compatGetString(context, R.string.content_not_supported),
             PlaybackStateCompat.ERROR_CODE_NOT_SUPPORTED
         )
     }

app/src/main/java/org/schabi/newpipe/settings/viewmodel/SettingsViewModel.kt

@@ -3,13 +3,13 @@ package org.schabi.newpipe.settings.viewmodel
 import android.app.Application
 import android.content.Context
 import android.content.SharedPreferences
-import androidx.core.content.ContextCompat
 import androidx.lifecycle.AndroidViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
 import dagger.hilt.android.qualifiers.ApplicationContext
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import org.schabi.newpipe.R
+import org.schabi.newpipe.util.Localization
 import javax.inject.Inject
 
 @HiltViewModel
@@ -20,11 +20,12 @@ class SettingsViewModel @Inject constructor(
 
     private var _settingsLayoutRedesignPref: Boolean
         get() = preferenceManager.getBoolean(
-            ContextCompat.getString(getApplication(), R.string.settings_layout_redesign_key), false
+            Localization.compatGetString(getApplication(), R.string.settings_layout_redesign_key),
+            false
         )
         set(value) {
             preferenceManager.edit().putBoolean(
-                ContextCompat.getString(getApplication(), R.string.settings_layout_redesign_key),
+                Localization.compatGetString(getApplication(), R.string.settings_layout_redesign_key),
                 value
             ).apply()
         }

app/src/main/java/org/schabi/newpipe/util/Localization.java

@@ -18,6 +18,7 @@ import androidx.annotation.Nullable;
 import androidx.annotation.PluralsRes;
 import androidx.annotation.StringRes;
 import androidx.appcompat.app.AppCompatDelegate;
+import androidx.core.content.ContextCompat;
 import androidx.core.math.MathUtils;
 import androidx.core.os.LocaleListCompat;
 import androidx.preference.PreferenceManager;
@@ -71,6 +72,46 @@ public final class Localization {
 
     private Localization() { }
 
+    /**
+     * Gets a string like you would normally do with {@link Context#getString}, except that when
+     * Context is not an AppCompatActivity the correct locale is still used. The latter step uses
+     * {@link ContextCompat#getString}, which might fail if the Locale system service is not
+     * available (e.g. inside of Compose previews). In that case this method falls back to plain old
+     * {@link Context#getString}.
+     * <p>This method also supports format args (see {@link #compatGetString(Context, int,
+     * Object...)}, unlike {@link ContextCompat#getString}.</p>
+     *
+     * @param context any Android context, even the App context
+     * @param resId the string resource to resolve
+     * @return the resolved string
+     */
+    public static String compatGetString(final Context context, @StringRes final int resId) {
+        try {
+            return ContextCompat.getString(context, resId);
+        } catch (final Throwable e) {
+            return context.getString(resId);
+        }
+    }
+
+    /**
+     * @see #compatGetString(Context, int)
+     * @param context any Android context, even the App context
+     * @param resId the string resource to resolve
+     * @param formatArgs the formatting arguments
+     * @return the resolved string
+     */
+    public static String compatGetString(final Context context,
+                                         @StringRes final int resId,
+                                         final Object... formatArgs) {
+        try {
+            // ContextCompat.getString() with formatArgs does not exist, so we just
+            // replicate its source code but with formatArgs
+            return ContextCompat.getContextForLanguage(context).getString(resId, formatArgs);
+        } catch (final Throwable e) {
+            return context.getString(resId, formatArgs);
+        }
+    }
+
     @NonNull
     public static String concatenateStrings(final String... strings) {
         return concatenateStrings(DOT_SEPARATOR, Arrays.asList(strings));

app/src/main/java/org/schabi/newpipe/util/NavigationHelper.java

@@ -641,10 +641,9 @@ public final class NavigationHelper {
 
     public static void openSettings(final Context context) {
         final Class<?> settingsClass = PreferenceManager.getDefaultSharedPreferences(context)
-                .getBoolean(
-                        ContextCompat.getString(context, R.string.settings_layout_redesign_key),
-                        false
-                ) ? SettingsV2Activity.class : SettingsActivity.class;
+                .getBoolean(Localization.compatGetString(context,
+                                R.string.settings_layout_redesign_key), false)
+                ? SettingsV2Activity.class : SettingsActivity.class;
 
         final Intent intent = new Intent(context, settingsClass);
         context.startActivity(intent);