vibration on keypress option

app/src/main/java/io/github/sspanak/tt9/preferences/screens/appearance/AppearanceScreen.java

@@ -24,10 +24,11 @@ public class AppearanceScreen extends BaseScreenFragment {
 
 	private void createMainSection() {
 		(new ItemStatusIcon(findPreference(ItemStatusIcon.NAME), activity.getSettings())).populate();
+		ItemHapticFeedback hapticFeedback = (new ItemHapticFeedback(findPreference(ItemHapticFeedback.NAME), activity.getSettings())).populate();
 
 		ItemDropDown[] items = {
 			new ItemSelectTheme(findPreference(ItemSelectTheme.NAME), activity),
-			new ItemSelectLayoutType(findPreference(ItemSelectLayoutType.NAME), activity),
+			new ItemSelectLayoutType(findPreference(ItemSelectLayoutType.NAME), activity, hapticFeedback::populate),
 			new ItemSelectSettingsFontSize(findPreference(ItemSelectSettingsFontSize.NAME), this)
 		};
 

app/src/main/java/io/github/sspanak/tt9/preferences/screens/appearance/ItemHapticFeedback.java

@@ -0,0 +1,37 @@
+package io.github.sspanak.tt9.preferences.screens.appearance;
+
+import androidx.annotation.NonNull;
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreferenceCompat;
+
+import io.github.sspanak.tt9.preferences.items.ItemClickable;
+import io.github.sspanak.tt9.preferences.settings.SettingsStore;
+
+class ItemHapticFeedback extends ItemClickable {
+	static final String NAME = "pref_haptic_feedback";
+	private final SettingsStore settings;
+
+	ItemHapticFeedback(Preference item, @NonNull SettingsStore settings) {
+		super(item);
+		this.settings = settings;
+	}
+
+	@Override
+	protected boolean onClick(Preference p) {
+		return true;
+	}
+
+	ItemHapticFeedback populate() {
+		return populate(settings.getMainViewLayout());
+	}
+
+
+	ItemHapticFeedback populate(int mainViewLayout) {
+		if (item != null) {
+			item.setEnabled(mainViewLayout == SettingsStore.LAYOUT_NUMPAD || mainViewLayout == SettingsStore.LAYOUT_SMALL);
+			((SwitchPreferenceCompat) item).setChecked(settings.getHapticFeedback());
+		}
+
+		return this;
+	}
+}

app/src/main/java/io/github/sspanak/tt9/preferences/screens/appearance/ItemSelectLayoutType.java

@@ -1,6 +1,7 @@
 package io.github.sspanak.tt9.preferences.screens.appearance;
 
 import androidx.preference.DropDownPreference;
+import androidx.preference.Preference;
 
 import java.util.LinkedHashMap;
 
@@ -8,15 +9,18 @@ import io.github.sspanak.tt9.R;
 import io.github.sspanak.tt9.preferences.PreferencesActivity;
 import io.github.sspanak.tt9.preferences.items.ItemDropDown;
 import io.github.sspanak.tt9.preferences.settings.SettingsUI;
+import io.github.sspanak.tt9.util.ConsumerCompat;
 
 public class ItemSelectLayoutType extends ItemDropDown {
 	public static final String NAME = "pref_layout_type";
 
 	private final PreferencesActivity activity;
+	private final ConsumerCompat<Integer> onChange;
 
-	public ItemSelectLayoutType(DropDownPreference item, PreferencesActivity activity) {
+	public ItemSelectLayoutType(DropDownPreference item, PreferencesActivity activity, ConsumerCompat<Integer> onChange) {
 		super(item);
 		this.activity = activity;
+		this.onChange = onChange;
 	}
 
 	public ItemDropDown populate() {
@@ -31,4 +35,12 @@ public class ItemSelectLayoutType extends ItemDropDown {
 
 		return this;
 	}
+
+	@Override
+	protected boolean onClick(Preference preference, Object newKey) {
+		if (onChange != null) {
+			onChange.accept(Integer.parseInt(newKey.toString()));
+		}
+		return super.onClick(preference, newKey);
+	}
 }

app/src/main/java/io/github/sspanak/tt9/preferences/settings/SettingsUI.java

@@ -32,6 +32,10 @@ public class SettingsUI extends SettingsTyping {
 		}
 	}
 
+	public boolean getHapticFeedback() {
+		return prefs.getBoolean("pref_haptic_feedback", true);
+	}
+
 	public int getSettingsFontSize() {
 		int defaultSize = DeviceInfo.isQinF21() || DeviceInfo.isLgX100S() ? FONT_SIZE_LARGE : FONT_SIZE_DEFAULT;
 		return getStringifiedInt("pref_font_size", defaultSize);

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftBackspaceKey.java

@@ -8,6 +8,7 @@ import io.github.sspanak.tt9.R;
 import io.github.sspanak.tt9.languages.LanguageKind;
 
 public class SoftBackspaceKey extends SoftKey {
+	private boolean hold;
 
 	public SoftBackspaceKey(Context context) {
 		super(context);
@@ -23,11 +24,25 @@ public class SoftBackspaceKey extends SoftKey {
 
 	@Override
 	final protected boolean handlePress() {
-		return handleHold();
+		super.handlePress();
+		hold = false;
+		return deleteText();
 	}
 
 	@Override
-	final protected boolean handleHold() {
+	final protected void handleHold() {
+		hold = true;
+		deleteText();
+	}
+
+	@Override
+	final protected boolean handleRelease() {
+		vibrate(hold ? Vibration.getReleaseVibration() : Vibration.getNoVibration());
+		hold = false;
+		return true;
+	}
+
+	private boolean deleteText() {
 		if (validateTT9Handler() && !tt9.onBackspace()) {
 			// Limited or special numeric field (e.g. formatted money or dates) cannot always return
 			// the text length, therefore onBackspace() seems them as empty and does nothing. This results
@@ -39,11 +54,6 @@ public class SoftBackspaceKey extends SoftKey {
 		return false;
 	}
 
-	@Override
-	final protected boolean handleRelease() {
-		return false;
-	}
-
 	@Override
 	protected int getNoEmojiTitle() {
 		return R.string.virtual_key_del;

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftFilterKey.java

@@ -16,18 +16,18 @@ public class SoftFilterKey extends SoftKey {
 	}
 
 	@Override
-	protected boolean handleHold() {
-		if (!validateTT9Handler()) {
-			return false;
+	protected void handleHold() {
+		preventRepeat();
+		if (validateTT9Handler() && tt9.onKeyFilterClear(false)) {
+			vibrate(Vibration.getHoldVibration());
 		}
-
-		return tt9.onKeyFilterClear(false);
 	}
 
 	@Override
 	protected boolean handleRelease() {
-		boolean multiplePress = getLastPressedKey() == getId();
-		return tt9.onKeyFilterSuggestions(false, multiplePress);
+		return
+			validateTT9Handler()
+			&& tt9.onKeyFilterSuggestions(false, getLastPressedKey() == getId());
 	}
 
 	@Override

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftInputModeKey.java

@@ -19,15 +19,13 @@ public class SoftInputModeKey extends SoftKey {
 	}
 
 	@Override
-	protected boolean handleHold() {
+	protected void handleHold() {
 		preventRepeat();
 
 		if (validateTT9Handler()) {
+			vibrate(Vibration.getHoldVibration());
 			tt9.changeKeyboard();
-			return true;
 		}
-
-		return false;
 	}
 
 	@Override

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKey.java

@@ -9,6 +9,7 @@ import android.text.Spanned;
 import android.text.style.RelativeSizeSpan;
 import android.text.style.StyleSpan;
 import android.util.AttributeSet;
+import android.view.HapticFeedbackConstants;
 import android.view.MotionEvent;
 import android.view.View;
 
@@ -36,14 +37,17 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 
 	public SoftKey(Context context) {
 		super(context);
+		setHapticFeedbackEnabled(false);
 	}
 
 	public SoftKey(Context context, AttributeSet attrs) {
 		super(context, attrs);
+		setHapticFeedbackEnabled(false);
 	}
 
 	public SoftKey(Context context, AttributeSet attrs, int defStyleAttr) {
 		super(context, attrs, defStyleAttr);
+		setHapticFeedbackEnabled(false);
 	}
 
 
@@ -51,12 +55,14 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 		this.tt9 = tt9;
 	}
 
-	public void setDarkTheme(boolean darkEnabled) {
-		int textColor = ContextCompat.getColor(
-			getContext(),
-			darkEnabled ? R.color.dark_button_text : R.color.button_text
-		);
-		setTextColor(textColor);
+
+	protected boolean validateTT9Handler() {
+		if (tt9 == null) {
+			Logger.w(LOG_TAG, "Traditional T9 handler is not set. Ignoring key press.");
+			return false;
+		}
+
+		return true;
 	}
 
 
@@ -72,6 +78,7 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 		}
 	}
 
+
 	@Override
 	public boolean onTouch(View view, MotionEvent event) {
 		super.onTouchEvent(event);
@@ -81,18 +88,18 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 		if (action == MotionEvent.ACTION_DOWN) {
 			return handlePress();
 		} else if (action == MotionEvent.ACTION_UP) {
-			preventRepeat();
-			if (!repeat) {
+			if (!repeat || hold) {
+				hold = false;
 				boolean result = handleRelease();
 				lastPressedKey = getId();
 				return result;
 			}
 			repeat = false;
 		}
-
 		return false;
 	}
 
+
 	@Override
 	public boolean onLongClick(View view) {
 		hold = true;
@@ -103,6 +110,7 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 		return true;
 	}
 
+
 	/**
 	 * repeatOnLongPress
 	 * Repeatedly calls "handleHold()" upon holding the respective SoftKey, to simulate physical keyboard behavior.
@@ -122,6 +130,7 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 		}
 	}
 
+
 	/**
 	 * preventRepeat
 	 * Prevents "handleHold()" from being called repeatedly when the SoftKey is being held.
@@ -131,17 +140,23 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 		repeatHandler.removeCallbacks(this::repeatOnLongPress);
 	}
 
+
 	protected static int getLastPressedKey() {
 		return lastPressedKey;
 	}
 
+
 	protected boolean handlePress() {
+		if (validateTT9Handler()) {
+			vibrate(Vibration.getPressVibration(this));
+		}
+
 		return false;
 	}
 
-	protected boolean handleHold() {
-		return false;
-	}
+
+	protected void handleHold() {}
+
 
 	protected boolean handleRelease() {
 		if (!validateTT9Handler()) {
@@ -149,29 +164,29 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 		}
 
 		int keyId = getId();
-
 		if (keyId == R.id.soft_key_command_palette) return tt9.onKeyCommandPalette(false);
-		if (keyId == R.id.soft_key_settings) { tt9.showSettings(); return true; }
 		if (keyId == R.id.soft_key_voice_input) { tt9.toggleVoiceInput(); return true; }
 
 		return false;
 	}
 
-	protected boolean validateTT9Handler() {
-		if (tt9 == null) {
-			Logger.w(LOG_TAG, "Traditional T9 handler is not set. Ignoring key press.");
-			return false;
-		}
 
-		return true;
+	public void setDarkTheme(boolean darkEnabled) {
+		int textColor = ContextCompat.getColor(
+			getContext(),
+			darkEnabled ? R.color.dark_button_text : R.color.button_text
+		);
+		setTextColor(textColor);
 	}
 
+
 	@Override
 	public void setEnabled(boolean enabled) {
 		super.setEnabled(enabled);
 		setTextColor(getTextColors().withAlpha(enabled ? 255 : 80));
 	}
 
+
 	/**
 	 * getTitle
 	 * Generates the name of the key, for example: "OK", "Backspace", "1", etc...
@@ -180,6 +195,7 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 		return null;
 	}
 
+
 	/**
 	 * getNoEmojiTitle
 	 * Generates a text representation of the key title, when emojis are not supported and getTitle()
@@ -187,6 +203,7 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 	 */
 	protected int getNoEmojiTitle() { return 0; }
 
+
 	/**
 	 * getSubTitle
 	 * Generates a String describing what the key does.
@@ -198,6 +215,7 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 		return null;
 	}
 
+
 	/**
 	 * Returns a meaningful key title depending on the current emoji support.
 	 */
@@ -210,6 +228,7 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 		}
 	}
 
+
 	/**
 	 * render
 	 * Sets the key label using "getTitle()" and "getSubtitle()" or if they both
@@ -248,4 +267,11 @@ public class SoftKey extends androidx.appcompat.widget.AppCompatButton implement
 
 		setText(sb);
 	}
+
+
+	protected void vibrate(int vibrationType) {
+		if (tt9 != null && tt9.getSettings().getHapticFeedback() && vibrationType != Vibration.getNoVibration()) {
+			getRootView().performHapticFeedback(vibrationType, HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
+		}
+	}
 }

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyArrow.java

@@ -6,17 +6,36 @@ import android.util.AttributeSet;
 import io.github.sspanak.tt9.R;
 
 public class SoftKeyArrow extends SoftKey {
+	private boolean hold;
+
 	public SoftKeyArrow(Context context) { super(context); }
 	public SoftKeyArrow(Context context, AttributeSet attrs) { super(context, attrs); }
 	public SoftKeyArrow(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
 
 	@Override
-	protected boolean handleRelease() {
-		return handleHold();
+	protected boolean handlePress() {
+		hold = false;
+		return super.handlePress();
 	}
 
 	@Override
-	protected boolean handleHold() {
+	protected void handleHold() {
+		hold = true;
+		moveCursor();
+	}
+
+	@Override
+	protected boolean handleRelease() {
+		if (hold) {
+			hold = false;
+			vibrate(Vibration.getReleaseVibration());
+			return true;
+		} else {
+			return moveCursor();
+		}
+	}
+
+	private boolean moveCursor() {
 		if (!validateTT9Handler()) {
 			return false;
 		}

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeySettings.java

@@ -10,6 +10,15 @@ public class SoftKeySettings extends SoftKey {
 	public SoftKeySettings(Context context, AttributeSet attrs) { super(context, attrs); }
 	public SoftKeySettings(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); }
 
+	@Override
+	protected boolean handleRelease() {
+		if (validateTT9Handler()) {
+			tt9.showSettings();
+			return true;
+		}
+
+		return false;
+	}
 
 	@Override
 	protected int getNoEmojiTitle() {

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftNumberKey.java

@@ -28,18 +28,17 @@ public class SoftNumberKey extends SoftKey {
 	}
 
 	@Override
-	protected boolean handleHold() {
+	protected void handleHold() {
 		int keyCode = Key.numberToCode(getUpsideDownNumber(getId()));
 		if (keyCode < 0 || !validateTT9Handler()) {
-			return false;
+			return;
 		}
 
 		preventRepeat();
 
+		vibrate(Vibration.getHoldVibration());
 		tt9.onKeyLongPress(keyCode, new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
 		tt9.onKeyUp(keyCode, new KeyEvent(KeyEvent.ACTION_UP, keyCode));
-
-		return true;
 	}
 
 	@Override

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftPunctuationKey.java

@@ -21,7 +21,7 @@ public class SoftPunctuationKey extends SoftKey {
 
 	@Override
 	protected boolean handleRelease() {
-		return tt9.onText(getKeyChar(), false);
+		return validateTT9Handler() && tt9.onText(getKeyChar(), false);
 	}
 
 	@Override

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/Vibration.java

@@ -0,0 +1,31 @@
+package io.github.sspanak.tt9.ui.main.keys;
+
+import android.os.Build;
+import android.view.HapticFeedbackConstants;
+
+class Vibration {
+	static int getNoVibration() {
+		return -1;
+	}
+
+	static int getPressVibration(SoftKey key) {
+		return key instanceof SoftNumberKey ? HapticFeedbackConstants.KEYBOARD_TAP : HapticFeedbackConstants.VIRTUAL_KEY;
+	}
+
+	static int getHoldVibration() {
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+			return HapticFeedbackConstants.CONFIRM;
+		} else {
+			return HapticFeedbackConstants.VIRTUAL_KEY;
+		}
+	}
+
+
+	static int getReleaseVibration() {
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
+			return HapticFeedbackConstants.KEYBOARD_RELEASE;
+		} else {
+			return HapticFeedbackConstants.VIRTUAL_KEY;
+		}
+	}
+}

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

@@ -141,4 +141,6 @@
 	<string name="voice_input_error_no_network">Няма връзка с интернет</string>
 	<string name="voice_input_error_network_failed">Проблем с мрежовата връзка</string>
 	<string name="voice_input_stopping">Изключване на микрофона…</string>
+	<string name="pref_haptic_feedback_summary">Вибрация при натискане на виртуален клавиш</string>
+	<string name="pref_haptic_feedback">Вибрация</string>
 </resources>

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

@@ -21,6 +21,7 @@
 	<string name="pref_layout_small">Funktionstasten</string>
 	<string name="pref_layout_stealth">Unsichtbarer Modus</string>
 	<string name="pref_layout_tray">Nur Wortliste</string>
+	<string name="pref_haptic_feedback_summary">Vibrieren beim Drücken einer virtuellen Taste.</string>
 	<string name="pref_help">Hilfe</string>
 	<string name="pref_dark_theme">Dunkles Thema</string>
 	<string name="pref_abc_auto_accept">Automatische Buchstabenauswahl</string>
@@ -134,4 +135,5 @@
 	<string name="voice_input_error_no_network">Keine Internetverbindung</string>
 	<string name="voice_input_error_not_available">Spracheingabe ist nicht verfügbar</string>
 	<string name="voice_input_stopping">Mikrofon ausschalten…</string>
+	<string name="pref_haptic_feedback">Vibration</string>
 </resources>

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

@@ -10,6 +10,7 @@
 	<string name="pref_layout_small">Teclas de función</string>
 	<string name="pref_layout_stealth">Modo invisible</string>
 	<string name="pref_layout_tray">Solo lista de palabras</string>
+	<string name="pref_haptic_feedback_summary">Vibrar al presionar una tecla virtual.</string>
 	<string name="pref_help">Ayuda</string>
 	<string name="pref_font_size_large">Grande</string>
 	<string name="completed">Terminado</string>
@@ -141,4 +142,5 @@
 	<string name="voice_input_error_no_network">Sin conexión a Internet</string>
 	<string name="voice_input_error_not_available">La entrada de voz no está disponible</string>
 	<string name="voice_input_stopping">Apagando el micrófono…</string>
+	<string name="pref_haptic_feedback">Vibración</string>
 </resources>

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

@@ -20,6 +20,7 @@
 	<string name="pref_layout_small">Touches de fonction</string>
 	<string name="pref_layout_stealth">Invisible</string>
 	<string name="pref_layout_tray">Seulement liste de mots</string>
+	<string name="pref_haptic_feedback_summary">Vibrer lors de l\'appui sur une touche virtuelle.</string>
 	<string name="pref_help">Aide</string>
 	<string name="pref_dark_theme">Thème sombre</string>
 	<string name="pref_auto_capitals_after_newline">Majuscules automatiques sur chaque ligne</string>
@@ -139,4 +140,5 @@
 	<string name="voice_input_error_no_network">Pas de connexion Internet</string>
 	<string name="voice_input_error_not_available">La saisie vocale n\'est pas disponible</string>
 	<string name="voice_input_stopping">Désactivation du microphone…</string>
+	<string name="pref_haptic_feedback">Vibration</string>
 </resources>

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

@@ -23,6 +23,7 @@
 	<string name="pref_layout_small">Tasti di funzione</string>
 	<string name="pref_layout_stealth">Invisibile</string>
 	<string name="pref_layout_tray">Solo elenco delle parole</string>
+	<string name="pref_haptic_feedback_summary">Vibrare alla pressione di un tasto virtuale.</string>
 	<string name="pref_help">Aiuto</string>
 	<string name="pref_dark_theme">Tema scuro</string>
 	<string name="pref_abc_auto_accept">Selezione automatica delle lettere</string>
@@ -134,5 +135,6 @@
 	<string name="voice_input_error_no_network">Nessuna connessione Internet</string>
 	<string name="voice_input_error_not_available">L\'input vocale non è disponibile</string>
 	<string name="voice_input_stopping">Spegnimento del microfono…</string>
+	<string name="pref_haptic_feedback">Vibrazione</string>
 </resources>
 

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

@@ -49,6 +49,7 @@
 	<string name="pref_layout_small">מקשי פונקציה</string>
 	<string name="pref_layout_stealth">מצב בלתי נראה</string>
 	<string name="pref_layout_tray">רשימת מילים בלבד</string>
+	<string name="pref_haptic_feedback_summary">לרטוט בעת לחיצה על מקש וירטואלי.</string>
 	<string name="pref_help">עזרה</string>
 
 	<string name="pref_status_icon">סמל מצב</string>
@@ -144,4 +145,5 @@
 	<string name="voice_input_error_no_network">אין חיבור לאינטרנט</string>
 	<string name="voice_input_error_not_available">קלט קולי אינו זמין</string>
 	<string name="voice_input_stopping">מכבה את המיקרופון…</string>
+	<string name="pref_haptic_feedback">רטט</string>
 </resources>

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

@@ -54,6 +54,7 @@
 	<string name="pref_layout_small">Funkcijos klavišai</string>
 	<string name="pref_layout_stealth">Nematomas režimas</string>
 	<string name="pref_layout_tray">Tik žodžių sąrašas</string>
+	<string name="pref_haptic_feedback_summary">Vibruoti paspaudus virtualų klavišą.</string>
 	<string name="pref_help">Pagalba</string>
 	<string name="pref_upside_down_keys">Atvirkštinė klavišų tvarka</string>
 	<string name="pref_upside_down_keys_summary">Įjunkite šį nustatymą jei pirmoje eilutėje turite 7–8–9, o ne 1–2–3.</string>
@@ -150,4 +151,5 @@
 	<string name="voice_input_error_no_network">Nėra interneto ryšio</string>
 	<string name="voice_input_error_not_available">Balso įvestis nėra prieinama</string>
 	<string name="voice_input_stopping">Išjungiamas mikrofonas…</string>
+	<string name="pref_haptic_feedback">Vibracija</string>
 </resources>

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

@@ -20,6 +20,7 @@
 	<string name="pref_layout_small">Functieknoppen</string>
 	<string name="pref_layout_stealth">Onzichtbare modus</string>
 	<string name="pref_layout_tray">Alleen suggestielijst</string>
+	<string name="pref_haptic_feedback_summary">Trillen bij het indrukken van een virtuele toets.</string>
 	<string name="pref_help">Helpen</string>
 	<string name="pref_dark_theme">Donker thema</string>
 	<string name="pref_abc_auto_accept">Automatische letterselectie</string>
@@ -132,4 +133,5 @@
 	<string name="voice_input_error_no_network">Geen internetverbinding</string>
 	<string name="voice_input_error_not_available">Spraakopvoer is niet beschikbaar</string>
 	<string name="voice_input_stopping">Microfoon uitschakelen…</string>
+	<string name="pref_haptic_feedback">Trilling</string>
 </resources>

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

@@ -50,6 +50,7 @@
 	<string name="pref_layout_small">Teclas de função</string>
 	<string name="pref_layout_stealth">Modo invisível</string>
 	<string name="pref_layout_tray">Apenas lista de palavras</string>
+	<string name="pref_haptic_feedback_summary">Vibrar ao pressionar uma tecla virtual.</string>
 	<string name="pref_help">Ajuda</string>
 
 	<string name="pref_status_icon">Ícone de status</string>
@@ -144,4 +145,5 @@
 	<string name="voice_input_error_no_network">Sem conexão com a Internet</string>
 	<string name="voice_input_error_not_available">A entrada de voz não está disponível</string>
 	<string name="voice_input_stopping">Desligando o microfone…</string>
+	<string name="pref_haptic_feedback">Vibração</string>
 </resources>

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

@@ -20,6 +20,7 @@
 	<string name="pref_layout_small">Функциональные клавиши</string>
 	<string name="pref_layout_stealth">Невидимый режим</string>
 	<string name="pref_layout_tray">Только список слов</string>
+	<string name="pref_haptic_feedback_summary">Вибрировать при нажатии виртуальной клавиши.</string>
 	<string name="pref_help">Помощь</string>
 	<string name="pref_dark_theme">Темная тема</string>
 	<string name="pref_auto_capitals_after_newline">Автоматические заглавные буквы на каждой строке</string>
@@ -141,4 +142,5 @@
 	<string name="voice_input_error_no_network">Нет подключения к Интернету</string>
 	<string name="voice_input_error_not_available">Голосовой ввод недоступен</string>
 	<string name="voice_input_stopping">Отключение микрофона…</string>
+	<string name="pref_haptic_feedback">Вибрация</string>
 </resources>

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

@@ -21,6 +21,7 @@
 	<string name="pref_layout_small">İşlevsel Tuşlar</string>
 	<string name="pref_layout_stealth">Görünmez</string>
 	<string name="pref_layout_tray">Sadece Tahminler</string>
+	<string name="pref_haptic_feedback_summary">Sanal bir tuşa basıldığında titremek.</string>
 	<string name="pref_help">Yardım</string>
 	<string name="pref_dark_theme">Karanlık Tema</string>
 	<string name="pref_abc_auto_accept">Otomatik Harf Seçimi</string>
@@ -144,4 +145,5 @@
 	<string name="voice_input_error_no_network">İnternet bağlantısı yok</string>
 	<string name="voice_input_error_not_available">Sesli giriş kullanılamıyor</string>
 	<string name="voice_input_stopping">Mikrofon kapatılıyor…</string>
+	<string name="pref_haptic_feedback">Titreşim</string>
 </resources>

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

@@ -61,6 +61,7 @@
 	<string name="pref_layout_small">Функціональні клавіші</string>
 	<string name="pref_layout_stealth">Невидимий режим</string>
 	<string name="pref_layout_tray">Лише список слів</string>
+	<string name="pref_haptic_feedback_summary">Вібрувати при натисканні віртуальної клавіші.</string>
 	<string name="pref_help">Допомога</string>
 	<string name="pref_upside_down_keys">Зворотній порядок клавіш</string>
 	<string name="pref_upside_down_keys_summary">Використовуйте це налаштування, якщо у вас в першому ряді 7–8–9 замість 1–2–3.</string>
@@ -152,4 +153,5 @@
 	<string name="voice_input_error_no_network">Немає підключення до Інтернету</string>
 	<string name="voice_input_error_not_available">Голосовий ввід недоступний</string>
 	<string name="voice_input_stopping">Вимикання мікрофона…</string>
+	<string name="pref_haptic_feedback">Вібрація</string>
 </resources>

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

@@ -64,6 +64,8 @@
 	<string name="pref_hack_fb_messenger">Send with \"OK\" in Facebook Messenger</string>
 	<string name="pref_hack_key_pad_debounce_time">Accidental Key Repeat Protection</string>
 	<string name="pref_hack_key_pad_debounce_off">Off</string>
+	<string name="pref_haptic_feedback">Vibration</string>
+	<string name="pref_haptic_feedback_summary">Vibrate when a virtual key is pressed.</string>
 	<string name="pref_help">Help</string>
 	<string name="pref_layout">On-screen Layout</string>
 	<string name="pref_layout_numpad">Virtual numpad (BETA)</string>

app/src/main/res/xml/prefs_screen_appearance.xml

@@ -10,6 +10,11 @@
 		app:key="pref_layout_type"
 		app:title="@string/pref_layout" />
 
+	<SwitchPreferenceCompat
+		app:key="pref_haptic_feedback"
+		app:title="@string/pref_haptic_feedback"
+		app:summary="@string/pref_haptic_feedback_summary"/>
+
 	<SwitchPreferenceCompat
 		app:key="pref_status_icon"
 		app:title="@string/pref_status_icon"