add setting from bottom padding scale

README.md

@@ -21,6 +21,7 @@ Might end up on F-Droid...
 * Number pad
 * Show all available extra characters on long pressing a key
 * Backup your learned word / history data
+* Adjustable bottom padding
 
 ## Hidden functionality
 Features that may go unnoticed

app/src/main/java/org/dslul/openboard/inputmethod/keyboard/clipboard/ClipboardLayoutParams.kt

@@ -40,8 +40,8 @@ class ClipboardLayoutParams(res: Resources) {
             keyHorizontalGap = res.getFraction(R.fraction.config_key_horizontal_gap_holo,
                 defaultKeyboardWidth, defaultKeyboardWidth).toInt()
         }
-        bottomPadding = res.getFraction(R.fraction.config_keyboard_bottom_padding_holo,
+        bottomPadding = (res.getFraction(R.fraction.config_keyboard_bottom_padding_holo,
-                defaultKeyboardHeight, defaultKeyboardHeight).toInt()
+                defaultKeyboardHeight, defaultKeyboardHeight) * Settings.getInstance().current.mBottomPaddingScale).toInt()
         topPadding = res.getFraction(R.fraction.config_keyboard_top_padding_holo,
                 defaultKeyboardHeight, defaultKeyboardHeight).toInt()
 

app/src/main/java/org/dslul/openboard/inputmethod/keyboard/emoji/EmojiLayoutParams.java

@@ -42,18 +42,14 @@ final class EmojiLayoutParams {
             mKeyHorizontalGap = (int) (res.getFraction(R.fraction.config_key_horizontal_gap_holo,
                     defaultKeyboardWidth, defaultKeyboardWidth));
         }
-        mBottomPadding = (int) res.getFraction(R.fraction.config_keyboard_bottom_padding_holo,
+        mBottomPadding = (int) (res.getFraction(R.fraction.config_keyboard_bottom_padding_holo,
-                defaultKeyboardHeight, defaultKeyboardHeight);
+                defaultKeyboardHeight, defaultKeyboardHeight) * Settings.getInstance().getCurrent().mBottomPaddingScale);
         mTopPadding = (int) res.getFraction(R.fraction.config_keyboard_top_padding_holo,
                 defaultKeyboardHeight, defaultKeyboardHeight);
-        mEmojiCategoryPageIdViewHeight =
+        mEmojiCategoryPageIdViewHeight = (int) (res.getDimension(R.dimen.config_emoji_category_page_id_height));
-                (int) (res.getDimension(R.dimen.config_emoji_category_page_id_height));
+        final int baseheight = defaultKeyboardHeight - mBottomPadding - mTopPadding + mKeyVerticalGap;
-        final int baseheight = defaultKeyboardHeight - mBottomPadding - mTopPadding
+        mEmojiActionBarHeight = baseheight / DEFAULT_KEYBOARD_ROWS - (mKeyVerticalGap - mBottomPadding) / 2;
-                + mKeyVerticalGap;
+        mEmojiListHeight = defaultKeyboardHeight - mEmojiActionBarHeight - mEmojiCategoryPageIdViewHeight;
-        mEmojiActionBarHeight = baseheight / DEFAULT_KEYBOARD_ROWS
-                - (mKeyVerticalGap - mBottomPadding) / 2;
-        mEmojiListHeight = defaultKeyboardHeight - mEmojiActionBarHeight
-                - mEmojiCategoryPageIdViewHeight;
         mEmojiListBottomMargin = 0;
         mEmojiKeyboardHeight = mEmojiListHeight - mEmojiListBottomMargin - 1;
     }

app/src/main/java/org/dslul/openboard/inputmethod/keyboard/internal/KeyboardParams.java

@@ -210,8 +210,9 @@ public class KeyboardParams {
             mOccupiedWidth = width;
             mTopPadding = (int) keyboardAttr.getFraction(
                     R.styleable.Keyboard_keyboardTopPadding, height, height, 0);
-            mBottomPadding = (int) keyboardAttr.getFraction(
+            mBottomPadding = (int) (keyboardAttr.getFraction(
-                    R.styleable.Keyboard_keyboardBottomPadding, height, height, 0);
+                    R.styleable.Keyboard_keyboardBottomPadding, height, height, 0)
+                    * Settings.getInstance().getCurrent().mBottomPaddingScale);
             mLeftPadding = (int) keyboardAttr.getFraction(
                     R.styleable.Keyboard_keyboardLeftPadding, width, width, 0);
             mRightPadding = (int) keyboardAttr.getFraction(

app/src/main/java/org/dslul/openboard/inputmethod/latin/settings/AppearanceSettingsFragment.kt

@@ -41,6 +41,7 @@ class AppearanceSettingsFragment : SubScreenFragment() {
         setColorPrefs(sharedPreferences.getString(Settings.PREF_THEME_STYLE, KeyboardTheme.STYLE_MATERIAL)!!)
 
         setupScalePrefs(Settings.PREF_KEYBOARD_HEIGHT_SCALE, SettingsValues.DEFAULT_SIZE_SCALE)
+        setupScalePrefs(Settings.PREF_BOTTOM_PADDING_SCALE, SettingsValues.DEFAULT_SIZE_SCALE)
         if (splitScalePref != null) {
             setupScalePrefs(Settings.PREF_SPLIT_SPACER_SCALE, SettingsValues.DEFAULT_SIZE_SCALE)
             splitScalePref?.isVisible = splitPref?.isChecked == true

app/src/main/java/org/dslul/openboard/inputmethod/latin/settings/Settings.java

@@ -85,6 +85,7 @@ public final class Settings implements SharedPreferences.OnSharedPreferenceChang
     public static final String PREF_ENABLE_SPLIT_KEYBOARD = "pref_split_keyboard";
     public static final String PREF_SPLIT_SPACER_SCALE = "pref_split_spacer_scale";
     public static final String PREF_KEYBOARD_HEIGHT_SCALE = "pref_keyboard_height_scale";
+    public static final String PREF_BOTTOM_PADDING_SCALE = "pref_bottom_padding_scale";
     public static final String PREF_SPACE_TRACKPAD = "pref_space_trackpad";
     public static final String PREF_DELETE_SWIPE = "pref_delete_swipe";
     public static final String PREF_AUTOSPACE_AFTER_PUNCTUATION = "pref_autospace_after_punctuation";

app/src/main/java/org/dslul/openboard/inputmethod/latin/settings/SettingsValues.java

@@ -103,6 +103,7 @@ public class SettingsValues {
     public final float mKeyboardHeightScale;
     public final boolean mUrlDetectionEnabled;
     public final List<String> mPinnedKeys;
+    public final float mBottomPaddingScale;
 
     // From the input box
     @NonNull
@@ -228,6 +229,7 @@ public class SettingsValues {
         mUrlDetectionEnabled = prefs.getBoolean(Settings.PREF_URL_DETECTION, false);
         mPinnedKeys = Settings.readPinnedKeys(prefs);
         mSpacingAndPunctuations = new SpacingAndPunctuations(res, mUrlDetectionEnabled);
+        mBottomPaddingScale = prefs.getFloat(Settings.PREF_BOTTOM_PADDING_SCALE, DEFAULT_SIZE_SCALE);
     }
 
     public boolean isApplicationSpecifiedCompletionsOn() {

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

@@ -236,6 +236,10 @@
     <string name="prefs_narrow_key_gaps">Narrow key gaps</string>
     <!-- Title of the settings for setting keyboard height -->
     <string name="prefs_keyboard_height_scale">Keyboard height scale</string>
+    <!-- Title of the settings for setting bottom padding height -->
+    <string name="prefs_bottom_padding_scale">Bottom padding scale</string>
+    <!-- Description of prefs_bottom_padding_scale -->
+    <string name="prefs_bottom_padding_scale_summary">Set size of the empty space below the keyboard</string>
     <!-- Description for English (UK) keyboard subtype [CHAR LIMIT=25]
          (UK) should be an abbreviation of United Kingdom to fit in the CHAR LIMIT. -->
     <string name="subtype_en_GB">English (UK)</string>

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

@@ -81,6 +81,13 @@
             latin:minValue="50"
             latin:maxValue="150" /> <!-- percentage -->
 
+        <org.dslul.openboard.inputmethod.latin.settings.SeekBarDialogPreference
+            android:key="pref_bottom_padding_scale"
+            android:title="@string/prefs_bottom_padding_scale"
+            android:summary="@string/prefs_bottom_padding_scale_summary"
+            latin:minValue="0"
+            latin:maxValue="500" /> <!-- percentage -->
+
     </PreferenceCategory>
 
 </PreferenceScreen>