use flat top fragment backgrounds until screen corners can be detected reliably

app/src/main/kotlin/com/simplemobiletools/launcher/activities/MainActivity.kt

@@ -151,8 +151,12 @@ class MainActivity : SimpleActivity(), FlingListener {
     override fun onResume() {
         super.onResume()
         updateStatusbarColor(Color.TRANSPARENT)
-        (all_apps_fragment as AllAppsFragment).setupViews()
+
-        (widgets_fragment as WidgetsFragment).setupViews()
+        main_holder.onGlobalLayout {
+            val addTopPadding = main_holder.rootWindowInsets.displayCutout != null
+            (all_apps_fragment as AllAppsFragment).setupViews(addTopPadding)
+            (widgets_fragment as WidgetsFragment).setupViews(addTopPadding)
+        }
 
         ensureBackgroundThread {
             if (mCachedLaunchers.isEmpty()) {
@@ -162,11 +166,6 @@ class MainActivity : SimpleActivity(), FlingListener {
 
             refetchLaunchers()
         }
-
-        // most devices have the top corners rounded, but in case someone has notch disabled, they might be in right angle
-        main_holder.onGlobalLayout {
-            setupFragmentBackgrounds()
-        }
     }
 
     override fun onStart() {
@@ -298,20 +297,6 @@ class MainActivity : SimpleActivity(), FlingListener {
     private fun hasFingerMoved(event: MotionEvent) = mLastTouchCoords.first != -1f && mLastTouchCoords.second != -1f &&
         (mLastTouchCoords.first != event.x || mLastTouchCoords.second != event.y)
 
-    private fun setupFragmentBackgrounds() {
-        val removeRoundedCorners = shouldRemoveTopRoundedCorners(main_holder)
-        val backgroundId = if (removeRoundedCorners) {
-            R.drawable.fragment_background_flat_top
-        } else {
-            R.drawable.fragment_background_rounded_corners
-        }
-
-        val backgroundDrawable = resources.getDrawable(backgroundId)
-        backgroundDrawable.applyColorFilter(getProperBackgroundColor())
-        (all_apps_fragment as AllAppsFragment).setupBackground(backgroundDrawable, removeRoundedCorners)
-        (widgets_fragment as WidgetsFragment).setupBackground(backgroundDrawable, removeRoundedCorners)
-    }
-
     private fun refetchLaunchers() {
         val launchers = getAllAppLaunchers()
         (all_apps_fragment as AllAppsFragment).gotLaunchers(launchers)

app/src/main/kotlin/com/simplemobiletools/launcher/fragments/AllAppsFragment.kt

@@ -2,7 +2,7 @@ package com.simplemobiletools.launcher.fragments
 
 import android.annotation.SuppressLint
 import android.content.Context
-import android.graphics.drawable.Drawable
+import android.graphics.drawable.ColorDrawable
 import android.util.AttributeSet
 import android.view.MotionEvent
 import android.view.Surface
@@ -25,11 +25,11 @@ class AllAppsFragment(context: Context, attributeSet: AttributeSet) : MyFragment
     private var lastTouchCoords = Pair(0f, 0f)
     var touchDownY = -1
     var ignoreTouches = false
+    var hasTopPadding = false
 
     @SuppressLint("ClickableViewAccessibility")
     override fun setupFragment(activity: MainActivity) {
         this.activity = activity
-        background.applyColorFilter(activity.getProperBackgroundColor())
 
         all_apps_grid.setOnTouchListener { v, event ->
             if (event.actionMasked == MotionEvent.ACTION_UP || event.actionMasked == MotionEvent.ACTION_CANCEL) {
@@ -104,7 +104,7 @@ class AllAppsFragment(context: Context, attributeSet: AttributeSet) : MyFragment
         }
     }
 
-    fun setupViews() {
+    fun setupViews(addTopPadding: Boolean = hasTopPadding) {
         if (activity == null) {
             return
         }
@@ -137,12 +137,11 @@ class AllAppsFragment(context: Context, attributeSet: AttributeSet) : MyFragment
 
         all_apps_grid.setPadding(0, 0, resources.getDimension(R.dimen.medium_margin).toInt(), bottomListPadding)
         all_apps_fastscroller.setPadding(leftListPadding, 0, rightListPadding, 0)
-    }
 
-    fun setupBackground(backgroundDrawable: Drawable, removeRoundedCorners: Boolean) {
+        hasTopPadding = addTopPadding
-        val topPadding = if (removeRoundedCorners) 0 else activity!!.statusBarHeight
+        val topPadding = if (addTopPadding) activity!!.statusBarHeight else 0
         setPadding(0, topPadding, 0, 0)
-        setBackgroundDrawable(backgroundDrawable)
+        background = ColorDrawable(context.getProperBackgroundColor())
     }
 
     override fun onAppLauncherLongPressed(x: Float, y: Float, appLauncher: AppLauncher) {

app/src/main/kotlin/com/simplemobiletools/launcher/fragments/WidgetsFragment.kt

@@ -6,7 +6,7 @@ import android.content.Context
 import android.content.Intent
 import android.content.pm.LauncherApps
 import android.content.pm.PackageManager
-import android.graphics.drawable.Drawable
+import android.graphics.drawable.ColorDrawable
 import android.os.Process
 import android.util.AttributeSet
 import android.view.MotionEvent
@@ -28,11 +28,11 @@ class WidgetsFragment(context: Context, attributeSet: AttributeSet) : MyFragment
     private var lastTouchCoords = Pair(0f, 0f)
     var touchDownY = -1
     var ignoreTouches = false
+    var hasTopPadding = false
 
     @SuppressLint("ClickableViewAccessibility")
     override fun setupFragment(activity: MainActivity) {
         this.activity = activity
-        background.applyColorFilter(activity.getProperBackgroundColor())
         getAppWidgets()
 
         widgets_list.setOnTouchListener { v, event ->
@@ -164,7 +164,7 @@ class WidgetsFragment(context: Context, attributeSet: AttributeSet) : MyFragment
         }
     }
 
-    fun setupViews() {
+    fun setupViews(addTopPadding: Boolean = hasTopPadding) {
         if (activity == null) {
             return
         }
@@ -197,12 +197,11 @@ class WidgetsFragment(context: Context, attributeSet: AttributeSet) : MyFragment
 
         widgets_list.setPadding(0, 0, 0, bottomListPadding)
         widgets_fastscroller.setPadding(leftListPadding, 0, rightListPadding, 0)
-    }
 
-    fun setupBackground(backgroundDrawable: Drawable, removeRoundedCorners: Boolean) {
+        hasTopPadding = addTopPadding
-        val topPadding = if (removeRoundedCorners) 0 else activity!!.statusBarHeight
+        val topPadding = if (addTopPadding) activity!!.statusBarHeight else 0
         setPadding(0, topPadding, 0, 0)
-        setBackgroundDrawable(backgroundDrawable)
+        background = ColorDrawable(context.getProperBackgroundColor())
     }
 
     private fun getAppMetadataFromPackage(packageName: String): WidgetsListSection? {

app/src/main/kotlin/com/simplemobiletools/launcher/helpers/Constants.kt

@@ -1,8 +1,5 @@
 package com.simplemobiletools.launcher.helpers
 
-import android.view.View
-import com.simplemobiletools.commons.helpers.isSPlus
-
 const val WIDGET_LIST_SECTION = 0
 const val WIDGET_LIST_ITEMS_HOLDER = 1
 
@@ -25,8 +22,3 @@ const val ITEM_TYPE_SHORTCUT = 2
 const val WIDGET_HOST_ID = 12345
 const val MAX_ALLOWED_MOVE_PX = 10
 const val MAX_CLICK_DURATION = 150
-
-// remove rounded corners if the display isnt using them
-fun shouldRemoveTopRoundedCorners(mainView: View): Boolean {
-    return isSPlus() && mainView.rootWindowInsets.displayCutout == null
-}

app/src/main/res/drawable/fragment_background_flat_top.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:id="@+id/fragment_background">
-        <shape android:shape="rectangle" />
-    </item>
-</layer-list>

app/src/main/res/drawable/fragment_background_rounded_corners.xml

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:id="@+id/fragment_background">
-        <shape android:shape="rectangle">
-            <corners
-                android:topLeftRadius="@dimen/material_button_corner_radius"
-                android:topRightRadius="@dimen/material_button_corner_radius" />
-        </shape>
-    </item>
-</layer-list>

app/src/main/res/layout/all_apps_fragment.xml

@@ -3,8 +3,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/all_apps_holder"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content"
+    android:layout_height="wrap_content">
-    android:background="@drawable/fragment_background_rounded_corners">
 
     <com.qtalk.recyclerviewfastscroller.RecyclerViewFastScroller
         android:id="@+id/all_apps_fastscroller"

app/src/main/res/layout/widgets_fragment.xml

@@ -3,8 +3,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/widgets_holder"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content"
+    android:layout_height="wrap_content">
-    android:background="@drawable/fragment_background_rounded_corners">
 
     <com.qtalk.recyclerviewfastscroller.RecyclerViewFastScroller
         android:id="@+id/widgets_fastscroller"