Merge "Disable Clock View Layer and ignore assigned alpha" into udc-dev

packages/SystemUI/src/com/android/keyguard/KeyguardClockFrame.kt

@@ -12,12 +12,9 @@ class KeyguardClockFrame(
 ) : FrameLayout(context, attrs) {
     private var drawAlpha: Int = 255
 
-    init {
-        setLayerType(View.LAYER_TYPE_SOFTWARE, null)
-    }
-
     protected override fun onSetAlpha(alpha: Int): Boolean {
-        drawAlpha = alpha
+        // Ignore alpha passed from View, prefer to compute it from set values
+        drawAlpha = (255 * this.alpha * transitionAlpha).toInt()
         return true
     }