1 files changed, 40 insertions, 0 deletions
diff --git a/android/support/transition/SyncRunnable.java b/android/support/transition/SyncRunnable.java
new file mode 100644
index 00000000..2e8a2e14
--- /dev/null
+++ b/android/support/transition/SyncRunnable.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.support.transition;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+class SyncRunnable implements Runnable {
+
+    private final CountDownLatch mLatch = new CountDownLatch(1);
+
+    @Override
+    public void run() {
+        mLatch.countDown();
+    }
+
+    boolean await() {
+        try {
+            return mLatch.await(3000, TimeUnit.MILLISECONDS);
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+        }
+        return false;
+    }
+
+}