camera2: Add state waiters for the session state listener

Bug: 15474402
Change-Id: I4ae86166b5ce99a854c754c8ac6d6c23c683b14a

1 files changed, 21 insertions, 0 deletions

diff --git a/camera2/public/src/com/android/ex/camera2/utils/StateChangeListener.java b/camera2/public/src/com/android/ex/camera2/utils/StateChangeListener.java
new file mode 100644
index 0000000..48cca17
--- /dev/null
+++ b/camera2/public/src/com/android/ex/camera2/utils/StateChangeListener.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2014 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 com.android.ex.camera2.utils;
+
+public interface StateChangeListener {
+    public void onStateChanged(int state);
+}