點擊關注焦點和曝光不起作用

我一直在嘗試做點擊重點一段時間，我幾乎嘗試了一切，但沒有一個人似乎爲我工作。以下是我在觸碰開始時的情況，它不起作用。它應該但它不是。我究竟做錯了什麼？點擊關注焦點和曝光不起作用

var newFocusPoint = CGPoint(x: touchPoint.locationInView(cameraView).x/screenSize.width, y: touchPoint.locationInView(cameraView).y/screenSize.height) 

    if let cameraDevice = device { 
     if(cameraDevice.lockForConfiguration(nil)) { 
      if cameraDevice.focusPointOfInterestSupported { 
       cameraDevice.focusPointOfInterest = newFocusPoint 
       cameraDevice.focusMode = AVCaptureFocusMode.ContinuousAutoFocus 
      } 
      if cameraDevice.exposurePointOfInterestSupported { 
       cameraDevice.exposurePointOfInterest = newFocusPoint 
       cameraDevice.exposureMode = AVCaptureExposureMode.ContinuousAutoExposure 
      } 
      cameraDevice.unlockForConfiguration() 
     } 
    }

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2015-10-13 John Doe

你在你的代碼做了細微的錯誤，下面的線應該修復它。

cameraDevice.focusPointOfInterest = focusPoint 
cameraDevice.focusMode = AVCaptureFocusMode.AutoFocus 
cameraDevice.exposurePointOfInterest = focusPoint 
cameraDevice.exposureMode = AVCaptureExposureMode.ContinuousAutoExposure

來源

2015-10-13 05:43:50 Katz

這似乎沒有工作。 –

哦等一下我懂了！謝謝！（： –

很高興我能幫忙@John Doe – Katz

點擊關注焦點和曝光不起作用

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