From 70799b7b03bfcd7265ce4856dcc96af7cd49223f Mon Sep 17 00:00:00 2001
From: guhongya <1138733232@qq.com>
Date: Tue, 20 Dec 2016 16:05:30 +0800
Subject: [PATCH] fix bugs when sdk>=21 and camera fall back toCamera1 (#71)

---
 .../main/java/com/google/android/cameraview/CameraView.java    | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/library/src/main/java/com/google/android/cameraview/CameraView.java b/library/src/main/java/com/google/android/cameraview/CameraView.java
index 87a7f78e..7ee581ff 100644
--- a/library/src/main/java/com/google/android/cameraview/CameraView.java
+++ b/library/src/main/java/com/google/android/cameraview/CameraView.java
@@ -230,8 +230,11 @@ protected void onRestoreInstanceState(Parcelable state) {
      */
     public void start() {
         if (!mImpl.start()) {
+            //store the state ,and restore this state after fall back o Camera1
+            Parcelable state=onSaveInstanceState();
             // Camera2 uses legacy hardware layer; fall back to Camera1
             mImpl = new Camera1(mCallbacks, createPreviewImpl(getContext()));
+            onRestoreInstanceState(state);
             mImpl.start();
         }
     }