diff --git a/Examples/ObjC/Sources/SCRecorderExamples-Info.plist b/Examples/ObjC/Sources/SCRecorderExamples-Info.plist
index 0dc207c7..007fb247 100644
--- a/Examples/ObjC/Sources/SCRecorderExamples-Info.plist
+++ b/Examples/ObjC/Sources/SCRecorderExamples-Info.plist
@@ -24,6 +24,10 @@
 	<string>1.0</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>NSCameraUsageDescription</key>
+	<string>使用相机</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>使用麦克风</string>
 	<key>UILaunchStoryboardName</key>
 	<string>Launch Screen</string>
 	<key>UIMainStoryboardFile</key>
diff --git a/Library/Sources/SCRecorder.m b/Library/Sources/SCRecorder.m
index efb68603..dc3f561e 100644
--- a/Library/Sources/SCRecorder.m
+++ b/Library/Sources/SCRecorder.m
@@ -91,8 +91,7 @@ - (id)init {
         [_videoConfiguration addObserver:self forKeyPath:@"enabled" options:NSKeyValueObservingOptionNew context:SCRecorderVideoEnabledContext];
         [_audioConfiguration addObserver:self forKeyPath:@"enabled" options:NSKeyValueObservingOptionNew context:SCRecorderAudioEnabledContext];
         [_photoConfiguration addObserver:self forKeyPath:@"options" options:NSKeyValueObservingOptionNew context:SCRecorderPhotoOptionsContext];
-        
-        _context = [SCContext new].CIContext;
+        _context = [SCContext contextWithType:SCContextTypeAuto options:nil].CIContext;
     }
     
     return self;