1 files changed, 41 insertions, 0 deletions
diff --git a/android/annotation/CallbackExecutor.java b/android/annotation/CallbackExecutor.java
new file mode 100644
index 00000000..5671a3d2
--- /dev/null
+++ b/android/annotation/CallbackExecutor.java
@@ -0,0 +1,41 @@
+/*
+ * 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.annotation;
+
+import static java.lang.annotation.ElementType.PARAMETER;
+import static java.lang.annotation.RetentionPolicy.SOURCE;
+
+import android.content.Context;
+import android.os.AsyncTask;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+import java.util.concurrent.Executor;
+
+/**
+ * @paramDoc Callback and listener events are dispatched through this
+ *           {@link Executor}, providing an easy way to control which thread is
+ *           used. To dispatch events through the main thread of your
+ *           application, you can use {@link Context#getMainExecutor()}. To
+ *           dispatch events through a shared thread pool, you can use
+ *           {@link AsyncTask#THREAD_POOL_EXECUTOR}.
+ * @hide
+ */
+@Retention(SOURCE)
+@Target(PARAMETER)
+public @interface CallbackExecutor {
+}