Fix of rotation and pinch gesture on android

android/src/main/java/com/swmansion/gesturehandler/core/PinchGestureHandler.kt

@@ -74,10 +74,13 @@ class PinchGestureHandler : GestureHandler<PinchGestureHandler>() {
     if (sourceEvent.actionMasked == MotionEvent.ACTION_POINTER_UP) {
       activePointers -= 1
     }
-    if (state == STATE_ACTIVE && activePointers < 2) {
-      end()
-    } else if (sourceEvent.actionMasked == MotionEvent.ACTION_UP) {
-      fail()
+
+    if (sourceEvent.actionMasked == MotionEvent.ACTION_UP) {
+      if (state == STATE_ACTIVE) {
+        end()
+      } else {
+        fail()
+      }
     }
   }
 

android/src/main/java/com/swmansion/gesturehandler/core/RotationGestureDetector.kt

@@ -111,11 +111,21 @@ class RotationGestureDetector(private val gestureListener: OnRotationGestureList
         updateCurrent(event)
         gestureListener?.onRotation(this)
       }
-      MotionEvent.ACTION_POINTER_UP -> if (isInProgress) {
+      MotionEvent.ACTION_POINTER_UP -> {
         val pointerId = event.getPointerId(event.actionIndex)
-        if (pointerId == pointerIds[0] || pointerId == pointerIds[1]) {
-          // One of the key pointer has been lifted up, we have to end the gesture
-          finish()
+
+        // All key pointers are up
+        if (!isInProgress && pointerId == pointerIds[0]) {
+          gestureListener?.onRotationEnd(this)
+        }
+
+        // One of the key pointers is up
+        if (isInProgress && pointerIds.contains(pointerId)) {
+          if (pointerId == pointerIds[0]) {
+            pointerIds[0] = pointerIds[1]
+          }
+          pointerIds[1] = MotionEvent.INVALID_POINTER_ID
+          isInProgress = false
         }
       }
       MotionEvent.ACTION_UP -> finish()

android/src/main/java/com/swmansion/gesturehandler/core/RotationGestureHandler.kt

@@ -59,7 +59,7 @@ class RotationGestureHandler : GestureHandler<RotationGestureHandler>() {
       anchorY = point.y
     }
     if (sourceEvent.actionMasked == MotionEvent.ACTION_UP) {
-      if (state == STATE_ACTIVE) {
+      if (state == STATE_ACTIVE && sourceEvent.pointerCount == 0) {
         end()
       } else {
         fail()