feat: added secondary icon attribute to key.

app/src/main/kotlin/com/simplemobiletools/keyboard/helpers/MyKeyboard.kt

@@ -138,6 +138,9 @@ class MyKeyboard {
         /** Icon to display instead of a label. Icon takes precedence over a label  */
         var icon: Drawable? = null
 
+        /** Icon to display top left of an icon.*/
+        var secondaryIcon: Drawable? = null
+
         /** Width of the key, not including the gap  */
         var width: Int
 
@@ -204,6 +207,9 @@ class MyKeyboard {
             icon = a.getDrawable(R.styleable.MyKeyboard_Key_keyIcon)
             icon?.setBounds(0, 0, icon!!.intrinsicWidth, icon!!.intrinsicHeight)
 
+            secondaryIcon = a.getDrawable(R.styleable.MyKeyboard_Key_secondaryKeyIcon)
+            secondaryIcon?.setBounds(0, 0, secondaryIcon!!.intrinsicWidth, secondaryIcon!!.intrinsicHeight)
+
             label = a.getText(R.styleable.MyKeyboard_Key_keyLabel) ?: ""
             topSmallNumber = a.getString(R.styleable.MyKeyboard_Key_topSmallNumber) ?: ""
 
@@ -230,10 +236,12 @@ class MyKeyboard {
         fun isInside(x: Int, y: Int): Boolean {
             val leftEdge = edgeFlags and EDGE_LEFT > 0
             val rightEdge = edgeFlags and EDGE_RIGHT > 0
-            return ((x >= this.x || leftEdge && x <= this.x + width)
-                && (x < this.x + width || rightEdge && x >= this.x)
-                && (y >= this.y && y <= this.y + height)
-                && (y < this.y + height && y >= this.y))
+            return (
+                (x >= this.x || leftEdge && x <= this.x + width) &&
+                    (x < this.x + width || rightEdge && x >= this.x) &&
+                    (y >= this.y && y <= this.y + height) &&
+                    (y < this.y + height && y >= this.y)
+                )
         }
     }
 
@@ -249,7 +257,7 @@ class MyKeyboard {
         mDefaultHorizontalGap = 0
         mDefaultWidth = mDisplayWidth / 10
         mDefaultHeight = mDefaultWidth
-        mKeyboardHeightMultiplier = getKeyboardHeightMultiplier(context.config.keyboardHeightMultiplier);
+        mKeyboardHeightMultiplier = getKeyboardHeightMultiplier(context.config.keyboardHeightMultiplier)
         mKeys = ArrayList()
         mEnterKeyType = enterKeyType
         loadKeyboard(context, context.resources.getXml(xmlLayoutResId))
@@ -273,7 +281,7 @@ class MyKeyboard {
         row.defaultHeight = mDefaultHeight
         row.defaultWidth = keyWidth
         row.defaultHorizontalGap = mDefaultHorizontalGap
-        mKeyboardHeightMultiplier = getKeyboardHeightMultiplier(context.config.keyboardHeightMultiplier);
+        mKeyboardHeightMultiplier = getKeyboardHeightMultiplier(context.config.keyboardHeightMultiplier)
 
         characters.forEachIndexed { index, character ->
             val key = Key(row)

app/src/main/kotlin/com/simplemobiletools/keyboard/views/MyKeyboardView.kt

@@ -612,13 +612,33 @@ class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: Attribut
                 } else if (code == KEYCODE_DELETE || code == KEYCODE_SHIFT || code == KEYCODE_EMOJI) {
                     key.icon!!.applyColorFilter(mTextColor)
                 }
+                val keyIcon = key.icon!!
+                val secondaryIcon = key.secondaryIcon
 
-                val drawableX = (key.width - key.icon!!.intrinsicWidth) / 2
-                val drawableY = (key.height - key.icon!!.intrinsicHeight) / 2
-                canvas.translate(drawableX.toFloat(), drawableY.toFloat())
-                key.icon!!.setBounds(0, 0, key.icon!!.intrinsicWidth, key.icon!!.intrinsicHeight)
-                key.icon!!.draw(canvas)
+                if (secondaryIcon != null) {
+                    val keyIconWidth = keyIcon.intrinsicWidth * 1
+                    val keyIconHeight = keyIcon.intrinsicWidth * 1
+                    val secondaryIconWidth = (secondaryIcon.intrinsicWidth * 0.6).toInt()
+                    val secondaryIconHeight = (secondaryIcon.intrinsicHeight * 0.6).toInt()
+
+                    secondaryIcon.setBounds(key.width - secondaryIconWidth, 0, key.width, secondaryIconHeight)
+                    secondaryIcon.draw(canvas)
+
+                    val drawableX = (key.width - keyIconWidth) / 2
+                    val drawableY = (key.height - keyIconHeight) / 2
+                    canvas.translate(drawableX.toFloat(), drawableY.toFloat() / 1.5f)
+
+                    keyIcon.setBounds(0, 0, keyIconWidth, keyIconHeight)
+                    keyIcon.draw(canvas)
                     canvas.translate(-drawableX.toFloat(), -drawableY.toFloat())
+                } else {
+                    val drawableX = (key.width - keyIcon.intrinsicWidth) / 2
+                    val drawableY = (key.height - keyIcon.intrinsicHeight) / 2
+                    canvas.translate(drawableX.toFloat(), drawableY.toFloat())
+                    keyIcon.setBounds(0, 0, keyIcon.intrinsicWidth, keyIcon.intrinsicHeight)
+                    keyIcon.draw(canvas)
+                    canvas.translate(-drawableX.toFloat(), -drawableY.toFloat())
+                }
             }
             canvas.translate(-key.x.toFloat(), -key.y.toFloat())
         }

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

@@ -33,6 +33,8 @@
         <attr name="keyLabel" format="string" />
         <!-- The icon to display on the key instead of the label. -->
         <attr name="keyIcon" format="reference" />
+        <!-- The icon to display on the top left of a key with icon. -->
+        <attr name="secondaryKeyIcon" format="reference" />
         <!-- Top small number shown above letters of the first row. -->
         <attr name="topSmallNumber" format="string" />
     </declare-styleable>