1 files changed, 63 insertions, 0 deletions
diff --git a/adapter/src/main/kotlin/ca/allanwang/kau/animators/DefaultAnimator.kt b/adapter/src/main/kotlin/ca/allanwang/kau/animators/DefaultAnimator.kt
new file mode 100644
index 0000000..9aeafde
--- /dev/null
+++ b/adapter/src/main/kotlin/ca/allanwang/kau/animators/DefaultAnimator.kt
@@ -0,0 +1,63 @@
+package ca.allanwang.kau.animators
+
+import android.support.v7.widget.RecyclerView
+import android.view.ViewPropertyAnimator
+
+/**
+ * Created by Allan Wang on 2017-06-27.
+ */
+open class DefaultAnimator : BaseItemAnimator() {
+
+    override fun removeAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator {
+        return holder.itemView.animate().apply {
+            alpha(0f)
+            duration = this@DefaultAnimator.removeDuration
+            interpolator = this@DefaultAnimator.interpolator
+        }
+    }
+
+    override fun removeAnimationCleanup(holder: RecyclerView.ViewHolder) {
+        holder.itemView.alpha = 1f
+    }
+
+    override fun addAnimationPrepare(holder: RecyclerView.ViewHolder) {
+        holder.itemView.alpha = 0f
+    }
+
+    override fun addAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator {
+        return holder.itemView.animate().apply {
+            alpha(1f)
+            duration = this@DefaultAnimator.addDuration
+            interpolator = this@DefaultAnimator.interpolator
+        }
+    }
+
+    override fun addAnimationCleanup(holder: RecyclerView.ViewHolder) {
+        holder.itemView.alpha = 1f
+    }
+
+    override fun changeOldAnimation(holder: RecyclerView.ViewHolder, changeInfo: ChangeInfo): ViewPropertyAnimator {
+        return holder.itemView.animate().apply {
+            alpha(0f)
+            translationX(changeInfo.toX.toFloat() - changeInfo.fromX)
+            translationY(changeInfo.toY.toFloat() - changeInfo.fromY)
+            duration = this@DefaultAnimator.changeDuration
+            interpolator = this@DefaultAnimator.interpolator
+        }
+    }
+
+    override fun changeNewAnimation(holder: RecyclerView.ViewHolder): ViewPropertyAnimator {
+        return holder.itemView.animate().apply {
+            alpha(1f)
+            translationX(0f)
+            translationY(0f)
+            duration = this@DefaultAnimator.changeDuration
+            interpolator = this@DefaultAnimator.interpolator
+        }
+    }
+
+    override fun changeAnimationCleanup(holder: RecyclerView.ViewHolder) {
+        holder.itemView.alpha = 1f
+    }
+
+}
+\ No newline at end of file