added a button to disable the system spell checker

app/src/main/java/io/github/sspanak/tt9/preferences/screens/setup/ItemSpellCheck.java

@@ -0,0 +1,67 @@
+package io.github.sspanak.tt9.preferences.screens.setup;
+
+import android.content.Intent;
+import android.content.pm.ResolveInfo;
+import android.provider.Settings;
+import android.service.textservice.SpellCheckerService;
+
+import androidx.preference.Preference;
+
+import io.github.sspanak.tt9.R;
+import io.github.sspanak.tt9.hacks.DeviceInfo;
+import io.github.sspanak.tt9.preferences.PreferencesActivity;
+import io.github.sspanak.tt9.preferences.items.ItemClickable;
+import io.github.sspanak.tt9.ui.UI;
+
+public class ItemSpellCheck extends ItemClickable {
+	public ItemSpellCheck(PreferencesActivity activity, Preference item) {
+		super(item);
+
+		if (DeviceInfo.noTouchScreen(activity)) {
+			disable();
+			item.setVisible(false);
+		} else if (isSpellCheckEnabled(activity)) {
+			enable();
+		} else {
+			disable();
+		}
+	}
+
+	private boolean isSpellCheckEnabled(PreferencesActivity activity) {
+		if (activity == null) {
+			return false;
+		}
+
+		Intent spellCheckIntent = new Intent(SpellCheckerService.SERVICE_INTERFACE);
+		return activity.getPackageManager().resolveService(spellCheckIntent, 0) != null;
+	}
+
+	@Override
+	public void enable() {
+		if (item != null) {
+			super.enable();
+			enableClickHandler();
+			item.setSummary(R.string.setup_spell_checker_on);
+		}
+	}
+
+	@Override
+	public void disable() {
+		if (item != null) {
+			super.disable();
+			item.setSummary(R.string.setup_spell_checker_off);
+		}
+	}
+
+	@Override
+	public void enableClickHandler() {
+		if (item != null && item.isEnabled()) {
+			super.enableClickHandler();
+		}
+	}
+
+	@Override
+	protected boolean onClick(Preference p) {
+		return UI.showSystemSpellCheckerSettings(p.getContext());
+	}
+}

app/src/main/java/io/github/sspanak/tt9/preferences/screens/setup/SetupScreen.java

@@ -45,6 +45,8 @@ public class SetupScreen extends BaseScreenFragment {
 		if (defaultKeyboardItem != null) {
 			new ItemSetDefaultGlobalKeyboard(defaultKeyboardItem, activity).enableClickHandler();
 		}
+
+		new ItemSpellCheck(activity, findPreference("global_spellchecker")).enableClickHandler();
 	}
 
 	private void createHacksSection(boolean isEnabled) {

app/src/main/java/io/github/sspanak/tt9/ui/UI.java

@@ -1,6 +1,7 @@
 package io.github.sspanak.tt9.ui;
 
 import android.app.AlertDialog;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.inputmethodservice.InputMethodService;
@@ -22,6 +23,25 @@ public class UI {
 		((InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE)).showInputMethodPicker();
 	}
 
+	public static boolean showSystemSpellCheckerSettings(Context context) {
+		ComponentName component = new ComponentName(
+			"com.android.settings",
+			"com.android.settings.Settings$SpellCheckersSettingsActivity"
+		);
+
+		Intent intent = new Intent();
+		intent.addCategory(Intent.CATEGORY_LAUNCHER);
+		intent.setComponent(component);
+		intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+		try {
+			context.startActivity(intent);
+			return true;
+		} catch (Exception e) {
+			return false;
+		}
+	}
+
 
 	public static void showSettingsScreen(InputMethodService ims) {
 		Intent prefIntent = new Intent(ims, PreferencesActivity.class);

app/src/main/res/values-bg/strings.xml

@@ -96,6 +96,9 @@
 	<string name="setup_tt9_on">%1$s е активен</string>
 	<string name="setup_tt9_off">%1$s е изключен</string>
 	<string name="setup_click_here_to_enable">Натиснете тук, за да включите TT9 от настройките на Андроид.</string>
+	<string name="setup_spell_checker">Системна проверка на правописа</string>
+	<string name="setup_spell_checker_on">Системната проверка на правописа може да попречи на добавянето на думи. Натиснете тук, за да я изключите.</string>
+	<string name="setup_spell_checker_off">Изключена</string>
 	<string name="key_hold_key">(задръж)</string>
 	<string name="dictionary_loading_indeterminate">Зареждане на речник</string>
 	<string name="dictionary_load_no_internet">Неуспешно изтегляне на речника за език „%1$s“. Проверете връзката с интернет.</string>

app/src/main/res/values-de/strings.xml

@@ -73,6 +73,9 @@
 	<string name="setup_tt9_on">%1$s ist aktiviert</string>
 	<string name="setup_tt9_off">%1$s ist deaktiviert</string>
 	<string name="setup_click_here_to_enable">Klicken Sie hier, um TT9 in den Android-Einstellungen zu aktivieren.</string>
+	<string name="setup_spell_checker">Systemrechtschreibprüfung</string>
+	<string name="setup_spell_checker_on">Die Systemrechtschreibprüfung kann das Hinzufügen von Wörtern beeinträchtigen. Klicken Sie hier, um sie zu deaktivieren.</string>
+	<string name="setup_spell_checker_off">Deaktiviert</string>
 	<string name="key_back">Zurück</string>
 	<string name="key_channel_down">Vorheriger Kanal</string>
 	<string name="key_channel_up">Nächster Kanal</string>

app/src/main/res/values-es/strings.xml

@@ -93,6 +93,9 @@
 	<string name="setup_tt9_on">%1$s está habilitado</string>
 	<string name="setup_tt9_off">%1$s está deshabilitado</string>
 	<string name="setup_click_here_to_enable">Pulse aquí para habilitar TT9 en la configuración de Android</string>
+	<string name="setup_spell_checker">Corrector ortográfico del sistema</string>
+	<string name="setup_spell_checker_on">El corrector ortográfico del sistema puede interferir con la adición de palabras. Haga clic aquí para desactivarlo.</string>
+	<string name="setup_spell_checker_off">Desactivado</string>
 	<string name="key_hold_key">(еspera)</string>
 	<string name="key_back">Volver</string>
 	<string name="key_call">Llamar</string>

app/src/main/res/values-fr/strings.xml

@@ -89,6 +89,9 @@
 	<string name="setup_tt9_on">%1$s est activé</string>
 	<string name="setup_tt9_off">%1$s est désactivé</string>
 	<string name="setup_click_here_to_enable">Cliquez ici pour activer TT9 dans les paramètres Android.</string>
+	<string name="setup_spell_checker">Correcteur orthographique du système</string>
+	<string name="setup_spell_checker_on">Le correcteur orthographique du système peut interférer avec l\'ajout de mots. Cliquez ici pour le désactiver.</string>
+	<string name="setup_spell_checker_off">Désactivé</string>
 	<string name="key_back">Retour</string>
 	<string name="key_channel_down">Chaîne précédente</string>
 	<string name="key_channel_up">Chaîne suivante</string>

app/src/main/res/values-it/strings.xml

@@ -74,6 +74,9 @@
 	<string name="setup_tt9_on">%1$s è abilitato</string>
 	<string name="setup_tt9_off">%1$s è disabilitato</string>
 	<string name="setup_click_here_to_enable">Clicca qui per abilitare TT9 dalle impostazioni di Android.</string>
+	<string name="setup_spell_checker">Controllo ortografico di sistema</string>
+	<string name="setup_spell_checker_on">Il controllo ortografico di sistema può interferire con l\'aggiunta di parole. Clicca qui per disabilitarlo.</string>
+	<string name="setup_spell_checker_off">Disabilitato</string>
 	<string name="key_back">Indietro</string>
 	<string name="key_channel_down">Canale precedente</string>
 	<string name="key_channel_up">Prossimo canale</string>

app/src/main/res/values-iw/strings.xml

@@ -89,6 +89,9 @@
 	<string name="setup_tt9_on">%1$s מופעל</string>
 	<string name="setup_tt9_off">%1$s מושבת</string>
 	<string name="setup_click_here_to_enable">לחץ כאן כדי להפעיל את TT9 מהגדרות Android.</string>
+	<string name="setup_spell_checker">בודק איות מערכת</string>
+	<string name="setup_spell_checker_on">בודק האיות של המערכת עלול להפריע להוספת מילים. לחץ כאן כדי להשבית.</string>
+	<string name="setup_spell_checker_off">מנוטרל</string>
 	<string name="key_hold_key">(החזק)</string>
 	<string name="key_back">חזור</string>
 	<string name="key_call">חיוג</string>

app/src/main/res/values-lt/strings.xml

@@ -100,6 +100,9 @@
 	<string name="setup_tt9_off">„%1$s“ yra išjungtas</string>
 	<string name="setup_click_here_to_enable">Spauskite čia norėdami įjungti „TT9“ per „Android“ nustatymus.</string>
 
+	<string name="setup_spell_checker">Sistemos rašybos tikrintuvas</string>
+	<string name="setup_spell_checker_on">Sistemos rašybos tikrintuvas gali trukdyti pridėti žodžius. Spustelėkite čia, kad išjungtumėte.</string>
+	<string name="setup_spell_checker_off">Išjungtas</string>
 	<string name="key_hold_key">(laikyti nusp.)</string>
 	<string name="key_back">Atgal mygtukas</string>
 	<string name="key_call">Skambinti mygtukas</string>

app/src/main/res/values-nl/strings.xml

@@ -75,6 +75,9 @@
 	<string name="setup_tt9_on">%1$s is ingeschakeld</string>
 	<string name="setup_tt9_off">%1$s is uitgeschakeld</string>
 	<string name="setup_click_here_to_enable">Klik hier om TT9 in te schakelen vanuit de Android-instellingen.</string>
+	<string name="setup_spell_checker">Systeemspellingscontrole</string>
+	<string name="setup_spell_checker_on">De systeemspellingscontrole kan het toevoegen van woorden verstoren. Klik hier om uit te schakelen.</string>
+	<string name="setup_spell_checker_off">Uitgeschakeld</string>
 	<string name="key_back">Terug</string>
 	<string name="key_channel_down">Vorige kanaal</string>
 	<string name="key_channel_up">Volgende kanaal</string>

app/src/main/res/values-pt-rBR/strings.xml

@@ -86,6 +86,9 @@
 	<string name="setup_tt9_on">%1$s está ativado</string>
 	<string name="setup_tt9_off">%1$s está desativado</string>
 	<string name="setup_click_here_to_enable">Clique aqui para ativar TT9 nas configurações do Android.</string>
+	<string name="setup_spell_checker">Verificador ortográfico do sistema</string>
+	<string name="setup_spell_checker_on">O verificador ortográfico do sistema pode interferir na adição de palavras. Clique aqui para desativá-lo.</string>
+	<string name="setup_spell_checker_off">Desativado</string>
 	<string name="key_hold_key">(segurar)</string>
 	<string name="key_back">Voltar</string>
 	<string name="key_call">Chamada</string>

app/src/main/res/values-ru/strings.xml

@@ -88,6 +88,9 @@
 	<string name="setup_tt9_on">%1$s активен</string>
 	<string name="setup_tt9_off">%1$s отключен</string>
 	<string name="setup_click_here_to_enable">Нажмите здесь, чтобы включить TT9 в настройках Android.</string>
+	<string name="setup_spell_checker">Системная проверка орфографии</string>
+	<string name="setup_spell_checker_on">Системная проверка орфографии может мешать добавлению слов. Нажмите здесь, чтобы отключить.</string>
+	<string name="setup_spell_checker_off">Отключена</string>
 	<string name="key_hold_key">(зажать)</string>
 	<string name="key_back">Назад</string>
 	<string name="key_call">Позвонить</string>

app/src/main/res/values-tr/strings.xml

@@ -72,6 +72,9 @@
 	<string name="setup_tt9_on">%1$s devrede</string>
 	<string name="setup_tt9_off">%1$s devre dışı</string>
 	<string name="setup_click_here_to_enable">Android ayarlarında TT9 uygulamasını etkinleştirmek için burayı tıklayın.</string>
+	<string name="setup_spell_checker">Sistem Yazım Denetleyicisi</string>
+	<string name="setup_spell_checker_on">Sistem yazım denetleyicisi kelime eklemeye müdahale edebilir. Devre dışı bırakmak için buraya tıklayın.</string>
+	<string name="setup_spell_checker_off">Devre dışı</string>
 	<string name="key_back">Geri</string>
 	<string name="key_channel_down">Önceki Seçim</string>
 	<string name="key_channel_up">Sonraki Seçim</string>

app/src/main/res/values-uk/strings.xml

@@ -134,6 +134,9 @@
 	<string name="setup_tt9_off">%1$s вимкнуто</string>
 	<string name="setup_click_here_to_enable">Нажміть тут, щоб увімкнути TT9 в налаштуваннях Android.</string>
 
+	<string name="setup_spell_checker">Системна перевірка орфографії</string>
+	<string name="setup_spell_checker_on">Системна перевірка орфографії може заважати додаванню слів. Натисніть тут, щоб вимкнути.</string>
+	<string name="setup_spell_checker_off">Вимкнена</string>
 	<string name="key_hold_key">(тримати)</string>
 	<string name="key_back">Назад</string>
 	<string name="key_call">Подзвонити</string>

app/src/main/res/values/strings.xml

@@ -172,6 +172,9 @@
 	<string name="setup_tt9_on">%1$s is enabled</string>
 	<string name="setup_tt9_off">%1$s is disabled</string>
 	<string name="setup_click_here_to_enable">Click here to enable TT9 from Android Settings.</string>
+	<string name="setup_spell_checker">System Spell Checker</string>
+	<string name="setup_spell_checker_on">System spell checker may interfere with adding words. Click here to disable.</string>
+	<string name="setup_spell_checker_off">Disabled</string>
 
 	<string name="key_hold_key">(hold)</string>
 	<string name="key_none" translatable="false">--</string>

app/src/main/res/xml/prefs_screen_setup.xml

@@ -9,6 +9,10 @@
 			app:key="global_default_keyboard"
 			app:title="@string/setup_default_keyboard" />
 
+	<Preference
+			app:key="global_spellchecker"
+			app:title="@string/setup_spell_checker" />
+
 	<PreferenceCategory app:title="@string/pref_category_hacks">
 
 		<SwitchPreferenceCompat