Add dumpsys logs to debug lockscreen stack height

Bug: 250686317
Test: adb shell dumpsys activity service com.android.systemui | grep computeHeight
Change-Id: I02b64fa00c8a97b008981eaca3735f54102e8f26

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java

@@ -5083,6 +5083,7 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable
             println(pw, "intrinsicPadding", mIntrinsicPadding);
             println(pw, "topPadding", mTopPadding);
             println(pw, "bottomPadding", mBottomPadding);
+            mNotificationStackSizeCalculator.dump(pw, args);
         });
         pw.println();
         pw.println("Contents:");

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackSizeCalculator.kt

@@ -30,6 +30,7 @@ import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow
 import com.android.systemui.statusbar.notification.row.ExpandableView
 import com.android.systemui.util.Compile
 import com.android.systemui.util.children
+import java.io.PrintWriter
 import javax.inject.Inject
 import kotlin.math.max
 import kotlin.math.min
@@ -53,6 +54,8 @@ constructor(
     @Main private val resources: Resources
 ) {
 
+    private lateinit var lastComputeHeightLog : String
+
     /**
      * Maximum # notifications to show on Keyguard; extras will be collapsed in an overflow shelf.
      * If there are exactly 1 + mMaxKeyguardNotifications, and they fit in the available space
@@ -114,7 +117,9 @@ constructor(
         shelfIntrinsicHeight: Float
     ): Int {
         log { "\n" }
-        val stackHeightSequence = computeHeightPerNotificationLimit(stack, shelfIntrinsicHeight)
+
+        val stackHeightSequence = computeHeightPerNotificationLimit(stack, shelfIntrinsicHeight,
+            /* computeHeight= */ false)
 
         var maxNotifications =
             stackHeightSequence.lastIndexWhile { heightResult ->
@@ -157,18 +162,21 @@ constructor(
         shelfIntrinsicHeight: Float
     ): Float {
         log { "\n" }
+        lastComputeHeightLog = ""
         val heightPerMaxNotifications =
-            computeHeightPerNotificationLimit(stack, shelfIntrinsicHeight)
+            computeHeightPerNotificationLimit(stack, shelfIntrinsicHeight,
+                    /* computeHeight= */ true)
 
         val (notificationsHeight, shelfHeightWithSpaceBefore) =
             heightPerMaxNotifications.elementAtOrElse(maxNotifications) {
                 heightPerMaxNotifications.last() // Height with all notifications visible.
             }
-        log {
-            "computeHeight(maxNotifications=$maxNotifications," +
+        lastComputeHeightLog += "\ncomputeHeight(maxNotifications=$maxNotifications," +
                 "shelfIntrinsicHeight=$shelfIntrinsicHeight) -> " +
                 "${notificationsHeight + shelfHeightWithSpaceBefore}" +
                 " = ($notificationsHeight + $shelfHeightWithSpaceBefore)"
+        log {
+            lastComputeHeightLog
         }
         return notificationsHeight + shelfHeightWithSpaceBefore
     }
@@ -184,7 +192,8 @@ constructor(
 
     private fun computeHeightPerNotificationLimit(
         stack: NotificationStackScrollLayout,
-        shelfHeight: Float
+        shelfHeight: Float,
+        computeHeight: Boolean
     ): Sequence<StackHeight> = sequence {
         log { "computeHeightPerNotificationLimit" }
 
@@ -213,9 +222,14 @@ constructor(
                             currentIndex = firstViewInShelfIndex)
                     spaceBeforeShelf + shelfHeight
                 }
+
+            val currentLog = "computeHeight | i=$i notificationsHeight=$notifications " +
+                "shelfHeightWithSpaceBefore=$shelfWithSpaceBefore"
+            if (computeHeight) {
+                lastComputeHeightLog += "\n" + currentLog
+            }
             log {
-                "i=$i notificationsHeight=$notifications " +
-                    "shelfHeightWithSpaceBefore=$shelfWithSpaceBefore"
+                currentLog
             }
             yield(
                 StackHeight(
@@ -260,6 +274,10 @@ constructor(
         return size
     }
 
+    fun dump(pw: PrintWriter, args: Array<out String>) {
+        pw.println("NotificationStackSizeCalculator lastComputeHeightLog = $lastComputeHeightLog")
+    }
+
     private fun ExpandableView.isShowable(onLockscreen: Boolean): Boolean {
         if (visibility == GONE || hasNoContentHeight()) return false
         if (onLockscreen) {