1 files changed, 26 insertions, 0 deletions
diff --git a/library/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt b/library/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt
index d1e527e..3cf3309 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt
@@ -67,6 +67,32 @@ fun View.circularReveal(x: Int = 0, y: Int = 0, offset: Long = 0L, radius: Float
     anim.start()
 }
 
+fun View.circularHide(x: Int = 0, y: Int = 0, offset: Long = 0L, radius: Float = -1.0f, duration: Long = 500L, onStart: (() -> Unit)? = null, onFinish: (() -> Unit)? = null) {
+    if (!isAttachedToWindow) {
+        onStart?.invoke()
+        invisible()
+        onFinish?.invoke()
+        return
+    }
+    var r = radius
+    if (r < 0.0f) {
+        r = Math.max(Math.hypot(x.toDouble(), y.toDouble()), Math.hypot((width - x.toDouble()), (height - y.toDouble()))).toFloat()
+    }
+    val anim = ViewAnimationUtils.createCircularReveal(this, x, y, r, 0f).setDuration(duration)
+    anim.startDelay = offset
+    anim.addListener(object : AnimatorListenerAdapter() {
+        override fun onAnimationStart(animation: Animator?) = onStart?.invoke() ?: Unit
+
+        override fun onAnimationEnd(animation: Animator?) {
+            invisible()
+            onFinish?.invoke() ?: Unit
+        }
+
+        override fun onAnimationCancel(animation: Animator?) = onFinish?.invoke() ?: Unit
+    })
+    anim.start()
+}
+
 fun View.fadeIn(offset: Long = 0L, duration: Long = 200L, onStart: (() -> Unit)? = null, onFinish: (() -> Unit)? = null) {
     if (!isAttachedToWindow) {
         onStart?.invoke()