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Added function to zoom from code #114

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Added function to zoom from code #114

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11 changes: 11 additions & 0 deletions LLSimpleCamera/LLSimpleCamera.h
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Original file line number Diff line number Diff line change
Expand Up @@ -215,6 +215,13 @@ typedef enum : NSUInteger {
*/
- (void)alterFocusBox:(CALayer *)layer animation:(CAAnimation *)animation;

/**
* Function to zoom the camera from code
*
* @param factor from 0.0 to 1.0
*/
- (void) scaleToFactor:(CGFloat)factor;

/**
* Checks is the front camera is available.
*/
Expand All @@ -224,4 +231,8 @@ typedef enum : NSUInteger {
* Checks is the rear camera is available.
*/
+ (BOOL)isRearCameraAvailable;




@end
12 changes: 12 additions & 0 deletions LLSimpleCamera/LLSimpleCamera.m
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Expand Up @@ -150,6 +150,18 @@ - (void)handlePinchGesture:(UIPinchGestureRecognizer *)recognizer
}
}

#pragma mark - Zooming programmatically
- (void) scaleToFactor:(CGFloat)factor
{
NSError *error = nil;
if ([self.videoCaptureDevice lockForConfiguration:&error])
{
[self.videoCaptureDevice rampToVideoZoomFactor:factor withRate:10];

[self.videoCaptureDevice unlockForConfiguration];
}
}

#pragma mark - Camera

- (void)attachToViewController:(UIViewController *)vc withFrame:(CGRect)frame
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