Expose swipe back

1 files changed, 13 insertions, 4 deletions

diff --git a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackHelper.kt b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackHelper.kt
index 1c6de12..90e6e6d 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackHelper.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackHelper.kt
@@ -34,8 +34,12 @@ internal object SwipeBackHelper {
     private operator fun get(activity: Activity): SwipeBackPage? =
         pageStack.firstOrNull { it.activityRef.get() === activity }
 
-    fun onCreate(activity: Activity, builder: SwipeBackContract.() -> Unit = {}) {
-        val page = this[activity] ?: pageStack.push(SwipeBackPage(activity).apply { builder() })
+    fun onCreate(
+        activity: Activity,
+        builder: SwipeBackContract.() -> Unit = {}
+    ): SwipeBackContract {
+        val swipeBackPage = SwipeBackPage(activity).apply(builder)
+        val page = this[activity] ?: pageStack.push(swipeBackPage)
         val startAnimation: Int = when (page.edgeFlag) {
             SWIPE_EDGE_LEFT -> R.anim.kau_slide_in_right
             SWIPE_EDGE_RIGHT -> R.anim.kau_slide_in_left
@@ -45,6 +49,7 @@ internal object SwipeBackHelper {
         activity.overridePendingTransition(startAnimation, 0)
         page.onPostCreate()
         KL.v { "KauSwipe onCreate ${activity.localClassName}" }
+        return swipeBackPage
     }
 
     fun onDestroy(activity: Activity) {
@@ -73,13 +78,17 @@ internal object SwipeBackHelper {
  *
  * Lastly, don't forget to call [kauSwipeOnDestroy] as well when the activity is destroyed.
  */
-fun Activity.kauSwipeOnCreate(builder: SwipeBackContract.() -> Unit = {}) = SwipeBackHelper.onCreate(this, builder)
+fun Activity.kauSwipeOnCreate(builder: SwipeBackContract.() -> Unit = {}): SwipeBackContract =
+    SwipeBackHelper.onCreate(this, builder)
 
 /**
  * Deprecated as onPostCreate seems unreliable.
  * We will instead initialize everything during [kauSwipeOnCreate]
  */
-@Deprecated(level = DeprecationLevel.WARNING, message = "All functionality has been moved to kauSwipeOnCreate")
+@Deprecated(
+    level = DeprecationLevel.WARNING,
+    message = "All functionality has been moved to kauSwipeOnCreate"
+)
 fun Activity.kauSwipeOnPostCreate() {
 }