removing the unused iconPreview key attribute too

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

@@ -151,7 +151,6 @@ class MyKeyboard {
      * @attr ref android.R.styleable#Keyboard_Key_codes
      * @attr ref android.R.styleable#Keyboard_Key_keyIcon
      * @attr ref android.R.styleable#Keyboard_Key_keyLabel
-     * @attr ref android.R.styleable#Keyboard_Key_iconPreview
      * @attr ref android.R.styleable#Keyboard_Key_isRepeatable
      * @attr ref android.R.styleable#Keyboard_Key_popupKeyboard
      * @attr ref android.R.styleable#Keyboard_Key_popupCharacters
@@ -170,9 +169,6 @@ class MyKeyboard {
         /** Icon to display instead of a label. Icon takes precedence over a label  */
         var icon: Drawable? = null
 
-        /** Preview version of the icon, for the preview popup  */
-        var iconPreview: Drawable? = null
-
         /** Width of the key, not including the gap  */
         var width: Int
 
@@ -241,9 +237,6 @@ class MyKeyboard {
                 codes = parseCSV(codesValue.string.toString())
             }
 
-            iconPreview = a.getDrawable(R.styleable.MyKeyboard_Key_iconPreview)
-            iconPreview?.setBounds(0, 0, iconPreview!!.intrinsicWidth, iconPreview!!.intrinsicHeight)
-
             popupCharacters = a.getText(R.styleable.MyKeyboard_Key_popupCharacters)
             popupResId = a.getResourceId(R.styleable.MyKeyboard_Key_popupKeyboard, 0)
             repeatable = a.getBoolean(R.styleable.MyKeyboard_Key_isRepeatable, false)

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

@@ -670,12 +670,7 @@ class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: Attribut
 
         val key = keys[keyIndex]
         if (key.icon != null) {
-            val bottomDrawable = if (key.iconPreview != null) {
-                key.iconPreview
-            } else {
-                key.icon
-            }
-            mPreviewText!!.setCompoundDrawables(null, null, null, bottomDrawable)
+            mPreviewText!!.setCompoundDrawables(null, null, null, key.icon)
         } else {
             mPreviewText!!.setCompoundDrawables(null, null, null, null)
             try {

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

@@ -29,8 +29,6 @@
         </attr>
         <!-- Whether long-pressing on this key will make it repeat. -->
         <attr name="isRepeatable" format="boolean" />
-        <!-- The icon to show in the popup preview. -->
-        <attr name="iconPreview" format="reference" />
         <!-- The label to display on the key. -->
         <attr name="keyLabel" format="string" />
         <!-- The icon to display on the key instead of the label. -->

app/src/main/res/xml/keys_letters.xml

@@ -138,7 +138,6 @@
             app:keyLabel="m" />
         <Key
             app:codes="-5"
-            app:iconPreview="@null"
             app:isRepeatable="true"
             app:keyEdgeFlags="right"
             app:keyIcon="@drawable/ic_clear_vector"
@@ -156,7 +155,6 @@
             app:keyWidth="10%p" />
         <Key
             app:codes="32"
-            app:iconPreview="@null"
             app:isRepeatable="true"
             app:keyWidth="45%p" />
         <Key

app/src/main/res/xml/keys_symbols.xml

@@ -114,7 +114,6 @@
             app:keyWidth="10%p" />
         <Key
             app:codes="32"
-            app:iconPreview="@null"
             app:isRepeatable="true"
             app:keyWidth="45%p" />
         <Key

app/src/main/res/xml/keys_symbols_shift.xml

@@ -114,7 +114,6 @@
             app:keyWidth="10%p" />
         <Key
             app:codes="32"
-            app:iconPreview="@null"
             app:isRepeatable="true"
             app:keyWidth="45%p" />
         <Key