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CameraManager
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Custom show error block.

This commit is contained in:
nelanelanela 2014-10-13 12:41:52 +01:00
parent 5a1c9b6890
commit 0cbf1dbb61
2 changed files with 41 additions and 23 deletions
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camera.xcodeproj/project.xcworkspace/xcuserdata/nataliaterlecka.xcuserdatad/UserInterfaceState.xcuserstate generated
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64
camera/CameraManager.swift
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@ -14,7 +14,10 @@ private let _singletonSharedInstance = CameraManager()
class CameraManager: NSObject {
var captureSession: AVCaptureSession?
var showErrorBlock:(erTitle: String, erMessage: String) -> Void = { (erTitle: String, erMessage: String) -> Void in
UIAlertView(title: erTitle, message: erMessage, delegate: nil, cancelButtonTitle: "OK").show()
}
private var sessionQueue: dispatch_queue_t = dispatch_queue_create("CameraSessionQueue", DISPATCH_QUEUE_SERIAL)
private var frontCamera: AVCaptureInput?
private var rearCamera: AVCaptureInput?
@ -27,6 +30,11 @@ class CameraManager: NSObject {
return _singletonSharedInstance
}
deinit {
self.stopCaptureSession()
self._stopFollowingDeviceOrientation()
}
func addPreeviewLayerToView(view: UIView)
{
if self.cameraIsSetup {
@ -37,25 +45,34 @@ class CameraManager: NSObject {
})
}
}
func stopCaptureSession()
{
self.captureSession?.stopRunning()
}
func capturePictureWithCompletition(imageCompletition: UIImage -> Void)
{
dispatch_async(self.sessionQueue, {
if let validStillImageOutput = self.stillImageOutput? {
validStillImageOutput.captureStillImageAsynchronouslyFromConnection(validStillImageOutput.connectionWithMediaType(AVMediaTypeVideo), completionHandler: { [weak self] (sample: CMSampleBuffer!, error: NSError!) -> Void in
if (error? != nil) {
dispatch_async(dispatch_get_main_queue(), {
if let weakSelf = self {
weakSelf._show("error", message: error.localizedDescription)
}
})
} else {
let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(sample)
imageCompletition(UIImage(data: imageData))
}
})
}
})
if self.cameraIsSetup {
dispatch_async(self.sessionQueue, {
if let validStillImageOutput = self.stillImageOutput? {
validStillImageOutput.captureStillImageAsynchronouslyFromConnection(validStillImageOutput.connectionWithMediaType(AVMediaTypeVideo), completionHandler: { [weak self] (sample: CMSampleBuffer!, error: NSError!) -> Void in
if (error? != nil) {
dispatch_async(dispatch_get_main_queue(), {
if let weakSelf = self {
weakSelf._show("error", message: error.localizedDescription)
}
})
} else {
let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(sample)
imageCompletition(UIImage(data: imageData))
}
})
}
})
} else {
self._show("No capture session setup", message: "I can't take any picture")
}
}
func orientationChanged()
@ -101,6 +118,11 @@ class CameraManager: NSObject {
{
NSNotificationCenter.defaultCenter().addObserver(self, selector: "orientationChanged", name: UIDeviceOrientationDidChangeNotification, object: nil)
}
private func _stopFollowingDeviceOrientation()
{
NSNotificationCenter.defaultCenter().removeObserver(self, name: UIDeviceOrientationDidChangeNotification, object: nil)
}
private func _addPreeviewLayerToView(view: UIView)
{
@ -164,11 +186,7 @@ class CameraManager: NSObject {
private func _show (title: String, message: String)
{
dispatch_async(dispatch_get_main_queue(), { () -> Void in
UIAlertView(
title: title,
message: message,
delegate: self,
cancelButtonTitle: "OK").show()
})
self.showErrorBlock(erTitle: title, erMessage: message)
})
}
}