Adding attribute to control alpha of the banner background

library/ui-styles/src/main/res/values/stylable_location_live_ended_banner_view.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <declare-styleable name="LocationLiveEndedBannerView">
+        <attr name="locLiveEndedBkgWithAlpha" format="boolean" />
+    </declare-styleable>
+
+</resources>

vector/src/main/java/im/vector/app/features/location/live/LocationLiveEndedBannerView.kt

@@ -17,9 +17,11 @@
 package im.vector.app.features.location.live
 
 import android.content.Context
+import android.content.res.TypedArray
 import android.util.AttributeSet
 import android.view.LayoutInflater
 import androidx.constraintlayout.widget.ConstraintLayout
+import im.vector.app.R
 import im.vector.app.databinding.ViewLocationLiveEndedBannerBinding
 
 class LocationLiveEndedBannerView @JvmOverloads constructor(
@@ -28,10 +30,28 @@ class LocationLiveEndedBannerView @JvmOverloads constructor(
         defStyleAttr: Int = 0
 ) : ConstraintLayout(context, attrs, defStyleAttr) {
 
+    private val binding = ViewLocationLiveEndedBannerBinding.inflate(
+            LayoutInflater.from(context),
+            this
+    )
+
     init {
-        ViewLocationLiveEndedBannerBinding.inflate(
-                LayoutInflater.from(context),
-                this
-        )
+        context.theme.obtainStyledAttributes(
+                attrs,
+                R.styleable.LocationLiveEndedBannerView,
+                0,
+                0
+        ).run {
+            try {
+                setBackgroundAlpha(this)
+            } finally {
+                recycle()
+            }
+        }
+    }
+
+    private fun setBackgroundAlpha(typedArray: TypedArray) {
+        val withAlpha = typedArray.getBoolean(R.styleable.LocationLiveEndedBannerView_locLiveEndedBkgWithAlpha, false)
+        binding.locationLiveEndedBannerBackground.alpha = if (withAlpha) 0.75f else 1f
     }
 }

vector/src/main/res/layout/item_timeline_event_live_location_inactive_stub.xml

@@ -21,7 +21,8 @@
         android:layout_height="48dp"
         app:layout_constraintBottom_toBottomOf="@id/locationLiveInactiveMap"
         app:layout_constraintEnd_toEndOf="@id/locationLiveInactiveMap"
-        app:layout_constraintStart_toStartOf="@id/locationLiveInactiveMap" />
+        app:layout_constraintStart_toStartOf="@id/locationLiveInactiveMap"
+        app:locLiveEndedBkgWithAlpha="true" />
 
     <ImageView
         android:id="@+id/locationLiveInactiveIcon"

vector/src/main/res/layout/view_location_live_ended_banner.xml

@@ -10,7 +10,6 @@
         android:id="@+id/locationLiveEndedBannerBackground"
         android:layout_width="0dp"
         android:layout_height="48dp"
-        android:alpha="0.75"
         android:src="?android:colorBackground"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"