Fix SimpleOnGestureListener implementation in SkikoGesturesDetector.a…

…ndroid.kt
JetBrains · Jun 19, 2023 · 19c4114 · 19c4114
1 parent 8a83c49
commit 19c4114
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Showing 2 changed files with 5 additions and 5 deletions.
diff --git a/skiko/src/androidMain/kotlin/org/jetbrains/skiko/Convertors.android.kt b/skiko/src/androidMain/kotlin/org/jetbrains/skiko/Convertors.android.kt
@@ -99,13 +99,13 @@ private val swipeThreshold = 100
 private val swipeVelocityThreshold = 100
 
 internal fun toSkikoGestureDirection(
-    event1: MotionEvent, 
+    event1: MotionEvent?,
     event2: MotionEvent, 
     velocityX: Float, 
     velocityY: Float
 ): SkikoGestureEventDirection {
-    val dx = event2.x - event1.x
-    val dy = event2.y - event1.y
+    val dx = event2.x - (event1?.x ?: 0f)
+    val dy = event2.y - (event1?.y ?: 0f)
     if (abs(dx) > abs(dy)) {
         if (abs(dx) > swipeThreshold && abs(velocityX) > swipeVelocityThreshold) {
             if (dx > 0) {

diff --git a/skiko/src/androidMain/kotlin/org/jetbrains/skiko/SkikoGesturesDetector.android.kt b/skiko/src/androidMain/kotlin/org/jetbrains/skiko/SkikoGesturesDetector.android.kt
@@ -79,7 +79,7 @@ internal class SkikoGesturesDetector(
         }
 
         override fun onScroll(
-            event1: MotionEvent,
+            event1: MotionEvent?,
             event2: MotionEvent,
             distanceX: Float,
             distanceY: Float,
@@ -98,7 +98,7 @@ internal class SkikoGesturesDetector(
         }
 
         override fun onFling(
-            event1: MotionEvent, 
+            event1: MotionEvent?,
             event2: MotionEvent, 
             velocityX: Float, 
             velocityY: Float