Simple Light(meekapps/Simple-Light)をiOS4で光らせる

gistfile1.diff

diff --git a/Simple Light/ViewController.h b/Simple Light/ViewController.h
index 21571f3..db2709d 100644
--- a/Simple Light/ViewController.h	
+++ b/Simple Light/ViewController.h	
@@ -13,6 +13,7 @@
     
     AVCaptureDevice *captureDevice;
     AVCaptureSession *captureSession;
+    AVCaptureVideoPreviewLayer *videoPreviewLayer;
     
     BOOL mainOn;
     BOOL strobeOn;
@@ -27,6 +28,7 @@
 }
 @property (nonatomic, retain) AVCaptureDevice *captureDevice;
 @property (nonatomic, retain) AVCaptureSession *captureSession;
+@property (nonatomic, retain) AVCaptureVideoPreviewLayer *videoPreviewLayer;
 @property (nonatomic) BOOL mainOn;
 @property (nonatomic) BOOL strobeOn;
 @property (nonatomic, retain) NSTimer *strobeTimer;
diff --git a/Simple Light/ViewController.m b/Simple Light/ViewController.m
index 567bf48..ce3b9f8 100644
--- a/Simple Light/ViewController.m	
+++ b/Simple Light/ViewController.m	
@@ -15,7 +15,7 @@
 
 @implementation ViewController
 @synthesize strobeTimer, mainOn, strobeOn, strobeDuration, batteryIndicator, calloutView, strobeButton, toggleButton, darknessOverlay, brightnessButton;
-@synthesize captureSession, captureDevice;
+@synthesize captureSession, captureDevice, videoPreviewLayer;
 
 - (void)didReceiveMemoryWarning
 {
@@ -197,6 +197,7 @@
 										  error:nil];
     
     self.captureSession = [[AVCaptureSession alloc] init];
+    self.videoPreviewLayer = [AVCaptureVideoPreviewLayer layerWithSession:self.captureSession];
     
     [self.captureSession addInput:captureInput];
     [self.captureSession startRunning];
@@ -238,7 +239,7 @@
     
     //strobe button slider
     UISlider *strobeSlider = [[UISlider alloc] initWithFrame:CGRectMake(9.5f, 39.0f, 190.0f, 30.0f)];
-    strobeSlider.minimumTrackTintColor = [UIColor darkGrayColor];
+    //strobeSlider.minimumTrackTintColor = [UIColor darkGrayColor];
     strobeSlider.minimumValue = kStrobeMin;
     strobeSlider.maximumValue = kStrobeMax;
     strobeSlider.value = (kStrobeMax + kStrobeMin) / 2.0f;