Difference between revisions of "AVFlashlight"

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[[AVFlashlight]] is a private class introduced in iOS 7 for turning the device's LED flash on or off. The example application that use this class is Control Center in [[SpringBoard]].
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[[AVFlashlight]] is a private class introduced in iOS 7 for turning the device's LED flash on or off. The example application that uses this class is Control Center in [[SpringBoard]].
  
 
== Methods ==
 
== Methods ==
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The method {{ObjcCall|AVFlashlight|setFlashlightLevel:withError:}} is used for setting the flashlight level.
 
The method {{ObjcCall|AVFlashlight|setFlashlightLevel:withError:}} is used for setting the flashlight level.
  
Example usage:
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== Example usage ==
 +
 
 
<source lang=objc>
 
<source lang=objc>
 
AVFlashlight *flashlight;
 
AVFlashlight *flashlight;
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[flashlight release];
 
[flashlight release];
 
</source>
 
</source>
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{{occlass|library=AVFoundation.framework|navbox=1}}

Revision as of 20:18, 18 February 2014

AVFlashlight is a private class introduced in iOS 7 for turning the device's LED flash on or off. The example application that uses this class is Control Center in SpringBoard.

Methods

Signature +(BOOL)hasFlashlight;
Available in 7.0 —

The method +[AVFlashlight hasFlashlight] indicates the LED flash availability.

Signature -(BOOL)setFlashlightLevel:(float)level withError:(NSError *)error;
Available in 7.0 —

The method -[AVFlashlight setFlashlightLevel:withError:] is used for setting the flashlight level.

Example usage

AVFlashlight *flashlight;

...

// Make sure you don't have any others AVFlashlight object instantiated
flashlight = [[AVFlashlight alloc] init];
[flashlight setFlashlightLevel:AVCaptureMaxAvailableTorchLevel withError:nil];

...

// Do this when you want to turn power/light off the LED flash
[flashlight release];