From 924128f09aa3c514bcbe74af65ad4feb05c774dc Mon Sep 17 00:00:00 2001
From: Alex Ning <chineseperson5@gmail.com>
Date: Tue, 1 Dec 2020 00:12:16 +0800
Subject: Changing language is now available.

---
 .../infinityforreddit/activities/BaseActivity.java        | 15 ++++++++++++++-
 .../settings/MiscellaneousPreferenceFragment.java         | 13 +++++++++++--
 .../infinityforreddit/utils/SharedPreferencesUtils.java   |  2 ++
 3 files changed, 27 insertions(+), 3 deletions(-)

(limited to 'app/src/main/java')

diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/activities/BaseActivity.java b/app/src/main/java/ml/docilealligator/infinityforreddit/activities/BaseActivity.java
index e01c0430..ccc00968 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/activities/BaseActivity.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/activities/BaseActivity.java
@@ -29,9 +29,11 @@ import com.google.android.material.floatingactionbutton.FloatingActionButton;
 import com.google.android.material.tabs.TabLayout;
 
 import java.lang.reflect.Field;
+import java.util.Locale;
 
 import ml.docilealligator.infinityforreddit.ActivityToolbarInterface;
 import ml.docilealligator.infinityforreddit.AppBarStateChangeListener;
+import ml.docilealligator.infinityforreddit.R;
 import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
 import ml.docilealligator.infinityforreddit.font.ContentFontFamily;
 import ml.docilealligator.infinityforreddit.font.ContentFontStyle;
@@ -39,7 +41,6 @@ import ml.docilealligator.infinityforreddit.font.FontFamily;
 import ml.docilealligator.infinityforreddit.font.FontStyle;
 import ml.docilealligator.infinityforreddit.font.TitleFontFamily;
 import ml.docilealligator.infinityforreddit.font.TitleFontStyle;
-import ml.docilealligator.infinityforreddit.R;
 import ml.docilealligator.infinityforreddit.utils.CustomThemeSharedPreferencesUtils;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
 
@@ -64,6 +65,18 @@ public abstract class BaseActivity extends AppCompatActivity {
         customThemeWrapper = getCustomThemeWrapper();
 
         SharedPreferences mSharedPreferences = getDefaultSharedPreferences();
+
+        String language = mSharedPreferences.getString(SharedPreferencesUtils.LANGUAGE, SharedPreferencesUtils.LANGUAGE_DEFAULT_VALUE);
+        if (language.equals(SharedPreferencesUtils.LANGUAGE_DEFAULT_VALUE)) {
+            language = Resources.getSystem().getConfiguration().locale.getLanguage();
+        }
+        Locale locale = new Locale(language);
+        Locale.setDefault(locale);
+        Resources resources = getResources();
+        Configuration config = resources.getConfiguration();
+        config.setLocale(locale);
+        resources.updateConfiguration(config, resources.getDisplayMetrics());
+
         boolean systemDefault = Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q;
         int systemThemeType = Integer.parseInt(mSharedPreferences.getString(SharedPreferencesUtils.THEME_KEY, "2"));
         immersiveInterface = Build.VERSION.SDK_INT >= Build.VERSION_CODES.O &&
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/settings/MiscellaneousPreferenceFragment.java b/app/src/main/java/ml/docilealligator/infinityforreddit/settings/MiscellaneousPreferenceFragment.java
index c27e7eec..f33dd57f 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/settings/MiscellaneousPreferenceFragment.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/settings/MiscellaneousPreferenceFragment.java
@@ -7,6 +7,7 @@ import android.os.Bundle;
 
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.preference.ListPreference;
 import androidx.preference.PreferenceFragmentCompat;
 import androidx.preference.SwitchPreference;
 
@@ -15,10 +16,10 @@ import org.greenrobot.eventbus.EventBus;
 import javax.inject.Inject;
 import javax.inject.Named;
 
-import ml.docilealligator.infinityforreddit.events.ChangeSavePostFeedScrolledPositionEvent;
-import ml.docilealligator.infinityforreddit.events.RecreateActivityEvent;
 import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.R;
+import ml.docilealligator.infinityforreddit.events.ChangeSavePostFeedScrolledPositionEvent;
+import ml.docilealligator.infinityforreddit.events.RecreateActivityEvent;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
 
 public class MiscellaneousPreferenceFragment extends PreferenceFragmentCompat {
@@ -40,6 +41,7 @@ public class MiscellaneousPreferenceFragment extends PreferenceFragmentCompat {
 
         SwitchPreference confirmToExitSwitch = findPreference(SharedPreferencesUtils.CONFIRM_TO_EXIT);
         SwitchPreference savePostFeedScrolledPositionSwitch = findPreference(SharedPreferencesUtils.SAVE_FRONT_PAGE_SCROLLED_POSITION);
+        ListPreference languageListPreference = findPreference(SharedPreferencesUtils.LANGUAGE);
 
         if (confirmToExitSwitch != null) {
             confirmToExitSwitch.setOnPreferenceChangeListener((preference, newValue) -> {
@@ -57,6 +59,13 @@ public class MiscellaneousPreferenceFragment extends PreferenceFragmentCompat {
                 return true;
             });
         }
+
+        if (languageListPreference != null) {
+            languageListPreference.setOnPreferenceChangeListener((preference, newValue) -> {
+                EventBus.getDefault().post(new RecreateActivityEvent());
+                return true;
+            });
+        }
     }
 
     @Override
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/utils/SharedPreferencesUtils.java b/app/src/main/java/ml/docilealligator/infinityforreddit/utils/SharedPreferencesUtils.java
index ebfa20fe..f6c3d5bd 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/utils/SharedPreferencesUtils.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/utils/SharedPreferencesUtils.java
@@ -144,6 +144,8 @@ public class SharedPreferencesUtils {
     public static final String SWIPE_RIGHT_ACTION = "swipe_right_action";
     public static final int SWIPE_ACITON_UPVOTE = 0;
     public static final int SWIPE_ACITON_DOWNVOTE = 1;
+    public static final String LANGUAGE = "language";
+    public static final String LANGUAGE_DEFAULT_VALUE = "auto";
 
     public static final String MAIN_PAGE_TABS_SHARED_PREFERENCES_FILE = "ml.docilealligator.infinityforreddit.main_page_tabs";
     public static final String MAIN_PAGE_TAB_COUNT = "_main_page_tab_count";
-- 
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