fix: better overlap calculation

Author: agronick

app/src/main/java/com/agronick/launcher/App.kt

@@ -10,7 +10,7 @@ import util.geometry.Vector2
 class App(val pkgInfo: PInfo, var size: Int) {
     var left = 0.0f
     var top = 0.0f
-    var drawLast = false
+    var zIndex = -1
     var hidden = false
     var assignedPos: Pair<Int, Int>? = null
     private var lastCircle: Circle? = null

app/src/main/java/com/agronick/launcher/Container.kt

@@ -97,14 +97,7 @@ class Container(val appList: AppListProvider, density: Float) {
     }
 
     fun draw(canvas: Canvas) {
-        flatAppList.filter {
-            return@filter if (it.drawLast) {
-                true
-            } else {
-                it.drawNormal(canvas)
-                false
-            }
-        }.forEach {
+        flatAppList.sortedBy { it.zIndex }.forEach {
             it.drawNormal(canvas)
         }
     }

app/src/main/java/com/agronick/launcher/Reorderer.kt

@@ -18,7 +18,7 @@ class Reorderer(
     private val appList = container.appList
 
     init {
-        app.drawLast = true
+        app.zIndex = 2
         lastPosition.add(app)
         suppressedAppCopy.hidden = true
         ValueAnimator.ofInt(app.size, (app.size * 1.4).toInt())
@@ -59,7 +59,7 @@ class Reorderer(
             playTogether(xAnim, yAnim)
             doOnEnd {
                 lastPosition.remove(app)
-                app.drawLast = false
+                app.zIndex = -1
             }
             start()
         }
@@ -69,6 +69,7 @@ class Reorderer(
         if (overApp == null) {
             animateAppPosition(app, suppressedAppCopy.left, suppressedAppCopy.top)
         } else {
+            overApp.zIndex = 1
             Timber.i("Sending ${overApp} to ${suppressedAppCopy.left} ${suppressedAppCopy.top}")
             animateAppPosition(overApp, suppressedAppCopy.left, suppressedAppCopy.top)
             Timber.i("Sending ${app} to ${overApp.left} ${overApp.top}")