iOS Question Tap to focus camera

[Hypnos]

I would like to use "tap to focus" on my camera app (just like the iphone camera app), is that possible to do it using LLCamera? Thank you!

 

[Erel]

Add these two methods to CameraEx: https://www.b4x.com/android/forum/t...control-the-camera-setting.49216/#post-306521

Public Sub IsFocusPointSupported As Boolean
   Return device.GetField("focusPointOfInterestSupported").AsBoolean
End Sub

Public Sub SetFocusPoint(x As Float, y As Float)
   device.RunMethod ("setFocusPointOfInterest:", Array(device.MakePoint(x, y)))
End Sub

You need to change the focus point in a configuration block (BeginConfiguration / CommitConfiguration).
The values are between 0 to 1: https://developer.apple.com/referen...ce/1385853-focuspointofinterest?language=objc

 

[Hypnos]

Add these two methods to CameraEx: https://www.b4x.com/android/forum/t...control-the-camera-setting.49216/#post-306521

Public Sub IsFocusPointSupported As Boolean
   Return device.GetField("focusPointOfInterestSupported").AsBoolean
End Sub

Public Sub SetFocusPoint(x As Float, y As Float)
   device.RunMethod ("setFocusPointOfInterest:", Array(device.MakePoint(x, y)))
End Sub

You need to change the focus point in a configuration block (BeginConfiguration / CommitConfiguration).
The values are between 0 to 1: https://developer.apple.com/reference/avfoundation/avcapturedevice/1385853-focuspointofinterest?language=objc

Thank you Erel, just tried and the new methods for FocusPoint worked !
Can you also let me know the code to add the following methods? I tried by myself but failed due to my limitation knowledge...

exposurePointOfInterest
https://developer.apple.com/referen...1388777-exposurepointofinterest?language=objc

exposurePointOfInterestSupported
https://developer.apple.com/referen...xposurepointofinterestsupported?language=objc

lowLightBoostSupported
https://developer.apple.com/referen.../1624595-lowlightboostsupported?language=objc

lowLightBoostEnabled
https://developer.apple.com/referen...ce/1624602-lowlightboostenabled?language=objc

automaticallyEnablesLowLightBoostWhenAvailable
https://developer.apple.com/referen...utomaticallyenableslowlightboos?language=objc

 

[Erel]

They are almost identical to the code I posted. You just need to change the method name.

 

[Hypnos]

They are almost identical to the code I posted. You just need to change the method name.

Hi Erel,

I can only successfully add the code for "SetExposurePoint" using the following code:

Public Sub SetExposurePoint(x As Float, y As Float)
    device.RunMethod ("setExposurePointOfInterest:", Array(device.MakePoint(x, y)))
End Sub

But I got error for below : (

Public Sub IsExposurePointSupported As Boolean 
    Return device.GetField("exposurePointOfInterestSupported").AsBoolean
End Sub

Public Sub SetLowLightBoost (v As Boolean)
    device.SetField ("LowLightBoostEnabled", v)
End Sub

Error configuring camera: [<AVCaptureFigVideoDevice 0x14e6d520> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key LowLightBoostEnabled.

[<AVCaptureFigVideoDevice 0x14e6d520> valueForUndefinedKey:]: this class is not key value coding-compliant for the key exposurePointOfInterestSupported.

 

[Erel]

It should be lowLightBoostEnabled (case sensitive!).

And probably: isExposurePointOfInterestSupported