From 1d9e5a73a8f2571b0d59c7ad693d274179bbb584 Mon Sep 17 00:00:00 2001
From: tehcneko <7764726+tehcneko@users.noreply.github.com>
Date: Fri, 28 May 2021 18:19:02 +0800
Subject: [PATCH] Fix shared element transition

---
 .../java/com/hippo/ehviewer/ui/scene/BaseScene.java    | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/app/src/main/java/com/hippo/ehviewer/ui/scene/BaseScene.java b/app/src/main/java/com/hippo/ehviewer/ui/scene/BaseScene.java
index a31142d9f..df105b1b0 100644
--- a/app/src/main/java/com/hippo/ehviewer/ui/scene/BaseScene.java
+++ b/app/src/main/java/com/hippo/ehviewer/ui/scene/BaseScene.java
@@ -27,6 +27,7 @@ import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.ViewTreeObserver;
 
 import androidx.annotation.IdRes;
 import androidx.annotation.NonNull;
@@ -198,6 +199,15 @@ public abstract class BaseScene extends SceneFragment {
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
+        postponeEnterTransition();
+        view.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
+            @Override
+            public boolean onPreDraw() {
+                view.getViewTreeObserver().removeOnPreDrawListener(this);
+                startPostponedEnterTransition();
+                return true;
+            }
+        });
 
         // Update left drawer locked state
         if (needShowLeftDrawer()) {