feat: add stroke_alpha attribute

Author: sonsation

library/src/main/java/com/sonsation/library/ShadowLayout.kt

@@ -113,7 +113,8 @@ class ShadowLayout : FrameLayout {
                         R.styleable.ShadowLayout_stroke_type,
                         StrokeType.INSIDE.type
                     )
-                } ?: StrokeType.INSIDE
+                } ?: StrokeType.INSIDE,
+                strokeAlpha = a.getInteger(R.styleable.ShadowLayout_stroke_alpha, 100)
             ).apply {
                 this.blurType = BlurMaskFilter.Blur.entries.find {
                     it.ordinal == a.getInteger(

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

@@ -22,6 +22,7 @@
             <enum name="INNER" value="3"/>
         </attr>
 
+        <attr name="stroke_alpha" format="integer" />
         <attr name="stroke_width" format="dimension" />
         <attr name="stroke_color" format="color" />
         <attr name="stroke_gradient_start_color" format="color"/>