Fix setting drawer drag margin on Android 10+

navlib/consumer-rules.pro

@@ -1,2 +1 @@
 -keep class androidx.drawerlayout.widget.DrawerLayout { *; }
--keep class androidx.customview.widget.ViewDragHelper { *; }

navlib/proguard-rules.pro

@@ -21,4 +21,3 @@
 #-renamesourcefileattribute SourceFile
 
 -keep class androidx.drawerlayout.widget.DrawerLayout { *; }
--keep class androidx.customview.widget.ViewDragHelper { *; }

navlib/src/main/java/pl/szczodrzynski/navlib/drawer/NavDrawer.kt

@@ -280,19 +280,17 @@ class NavDrawer(
             val mDrawerLayout = drawerLayout
             val mDragger = mDrawerLayout::class.java.getDeclaredField(
                 "mLeftDragger"
-            )//mRightDragger for right obviously
+            )
             mDragger.isAccessible = true
             val draggerObj = mDragger.get(mDrawerLayout) as ViewDragHelper?
+            draggerObj?.edgeSize = size.toInt()
 
-            val mEdgeSize = draggerObj?.javaClass?.getDeclaredField(
+            // update for SDK >= 29 (Android 10)
-                "mEdgeSize"
+            val useSystemInsets = mDrawerLayout::class.java.getDeclaredField(
+                "sEdgeSizeUsingSystemGestureInsets"
             )
-            mEdgeSize?.isAccessible = true
+            useSystemInsets.isAccessible = true
-
+            useSystemInsets.set(null, false)
-            mEdgeSize?.setInt(
-                draggerObj,
-                size.toInt()
-            ) //optimal value as for me, you may set any constant in dp
         }
         catch (e: Exception) {
             e.printStackTrace()