TP-49163 | uat fix : adding letterSpacing support (#10754)

android/navi-design/src/main/java/com/navi/design/textview/model/NaviSpan.kt

@@ -28,7 +28,8 @@ data class NaviSpan(
     @SerializedName("gravity") val gravity: String? = null,
     @SerializedName("spanBgColor") val spanBgColor: String? = null,
     @SerializedName("replacementSpan") val replacementSpan: Boolean? = null,
-    @SerializedName("cta", alternate = ["action"]) val cta: ActionData? = null
+    @SerializedName("cta", alternate = ["action"]) val cta: ActionData? = null,
+    @SerializedName("letterSpacing") val letterSpacing: Float? = null
 ) : SpanInterface, Serializable, Parcelable {
 
     override fun endSpan(): Int? = endSpan

android/navi-design/src/main/java/com/navi/design/utils/Ext.kt

@@ -330,6 +330,14 @@ fun TextView.setSpannableString(
                 Spannable.SPAN_INCLUSIVE_INCLUSIVE
             )
         }
+        styleData.letterSpacing?.let {
+            spannableString.setSpan(
+                LetterSpacingSpan((0.1 * it).toFloat()),
+                startIndex,
+                endIndex,
+                Spannable.SPAN_INCLUSIVE_INCLUSIVE
+            )
+        }
     }
     text = spannableString
     clickCta?.let { clickListener?.invoke(it) }

android/navi-design/src/main/java/com/navi/design/utils/LetterSpacingSpan.kt

@@ -0,0 +1,27 @@
+/*
+ *
+ *  * Copyright © 2024 by Navi Technologies Limited
+ *  * All rights reserved. Strictly confidential
+ *
+ */
+
+package com.navi.design.utils
+
+import android.graphics.Paint
+import android.text.TextPaint
+import android.text.style.MetricAffectingSpan
+
+class LetterSpacingSpan(private val letterSpacing: Float) : MetricAffectingSpan() {
+
+    override fun updateDrawState(tp: TextPaint?) {
+        tp?.let { apply(it) }
+    }
+
+    override fun updateMeasureState(textPaint: TextPaint) {
+        apply(textPaint)
+    }
+
+    private fun apply(paint: Paint) {
+        paint.letterSpacing = letterSpacing
+    }
+}