我在寻找如何打开/关闭 iPhone 的相机闪光灯,我发现了这个:
@IBAction func didTouchFlashButton(sender: AnyObject) {
let avDevice = AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeVideo)
// check if the device has torch
if avDevice.hasTorch {
// lock your device for configuration
avDevice.lockForConfiguration(nil)
// check if your torchMode is on or off. If on turns it off otherwise turns it on
if avDevice.torchActive {
avDevice.torchMode = AVCaptureTorchMode.Off
} else {
// sets the torch intensity to 100%
avDevice.setTorchModeOnWithLevel(1.0, error: nil)
}
// unlock your device
avDevice.unlockForConfiguration()
}
}
我确实遇到了 2 个问题,其中一个在线:
avDevice.lockForConfiguration(nil)
和另一个在线:
avDevice.setTorchModeOnWithLevel(1.0, error:nil)
都和异常处理有关,不知道怎么解决。
最佳答案
@IBAction func didTouchFlashButton(sender: UIButton) {
let avDevice = AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeVideo)
// check if the device has torch
if avDevice.hasTorch {
// lock your device for configuration
do {
let abv = try avDevice.lockForConfiguration()
} catch {
print("aaaa")
}
// check if your torchMode is on or off. If on turns it off otherwise turns it on
if avDevice.torchActive {
avDevice.torchMode = AVCaptureTorchMode.Off
} else {
// sets the torch intensity to 100%
do {
let abv = try avDevice.setTorchModeOnWithLevel(1.0)
} catch {
print("bbb")
}
// avDevice.setTorchModeOnWithLevel(1.0, error: nil)
}
// unlock your device
avDevice.unlockForConfiguration()
}
}
关于ios - 如何打开/关闭 iPhone 相机闪光灯 swift 2?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33585353/