Question

我想创建WhatsApp，使用目标c在iPhone中推出一键式语音留言功能。

Answer 1

首先，这是一个非常基本的例子。所以谁想要使用它，还需要做更多的事情。如果有人在 Swift 3.x

中需要它

＆＃13;

import UIKit

protocol SPKRecordViewDelegate: class {
    
    func SPKRecordViewDidSelectRecord(sender : SPKRecordView, button: UIView)
    func SPKRecordViewDidStopRecord(sender : SPKRecordView, button: UIView)
    func SPKRecordViewDidCancelRecord(sender : SPKRecordView, button: UIView)
    
}

class SPKRecordView: UIView {
    
    enum SPKRecordViewState {
        
        case Recording
        case None
        
    }
    
    var state : SPKRecordViewState = .None {
        
        didSet {
            
            UIView.animate(withDuration: 0.3) { () -> Void in
                
                self.slideToCancel.alpha = 1.0
                self.invalidateIntrinsicContentSize()
                self.setNeedsLayout()
                self.layoutIfNeeded()
                
            }
            
        }
    }
    
    let recordButton : UIButton = UIButton(type: .custom)
    let slideToCancel : UILabel = UILabel(frame: CGRect.zero)
    
    weak var delegate : SPKRecordViewDelegate?
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        self.translatesAutoresizingMaskIntoConstraints = false
        
        setupRecordButton()
        setupLabel()
    }
    
    func setupRecordButton() {
        
        recordButton.translatesAutoresizingMaskIntoConstraints = false
        addSubview(recordButton)
        let hConsts = NSLayoutConstraint.constraints(withVisualFormat: "H:[recordButton]|", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["recordButton":recordButton])
        self.addConstraints(hConsts)
        
        let vConsts = NSLayoutConstraint.constraints(withVisualFormat: "V:|[recordButton]|", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["recordButton":recordButton])
        self.addConstraints(vConsts)
        
        recordButton.setImage(UIImage(named: "record")!, for: .normal)
        let longPress = UILongPressGestureRecognizer(target: self, action: #selector(userDidTapRecord(_:)))
        longPress.cancelsTouchesInView = false
        longPress.allowableMovement = 10
        longPress.minimumPressDuration = 0.2
        recordButton.addGestureRecognizer(longPress)
        
    }
    
    func setupLabel() {
        
        slideToCancel.translatesAutoresizingMaskIntoConstraints = false
        addSubview(slideToCancel)
        backgroundColor = UIColor.clear
        
        let hConsts = NSLayoutConstraint.constraints(withVisualFormat: "H:|[slideToCancel][bt]", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["slideToCancel":slideToCancel,"bt":recordButton])
        self.addConstraints(hConsts)
        
        let vConsts = NSLayoutConstraint.constraints(withVisualFormat: "V:|[slideToCancel]|", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["slideToCancel":slideToCancel])
        self.addConstraints(vConsts)
        
        slideToCancel.alpha = 0.0
        slideToCancel.font = UIFont(name: "Lato-Bold", size: 17)
        slideToCancel.textAlignment = .center
        slideToCancel.textColor = UIColor.black
    }
    
    
    override public var intrinsicContentSize: CGSize {
        if state == .none {
            return recordButton.intrinsicContentSize
        } else {
            
            return CGSize(width: recordButton.intrinsicContentSize.width * 3, height: recordButton.intrinsicContentSize.height)
        }
    }
    
    func userDidTapRecordThenSwipe(sender: UIButton) {
        slideToCancel.text = nil
        delegate?.SPKRecordViewDidCancelRecord(sender: self, button: sender)
    }
    
    func userDidStopRecording(sender: UIButton) {
        slideToCancel.text = nil
        delegate?.SPKRecordViewDidStopRecord(sender: self, button: sender)
    }
    
    func userDidBeginRecord(sender : UIButton) {
        slideToCancel.text = "Slide to cancel <"
        delegate?.SPKRecordViewDidSelectRecord(sender: self, button: sender)
        
    }
    
    func userDidTapRecord(_ sender: UIGestureRecognizer) {
        
        print("Long Tap")
        
        let button = sender.view as! UIButton
        
        let location = sender.location(in: button)
        
        var startLocation = CGPoint.zero
        
        switch sender.state {
            
        case .began:
            startLocation = location
            userDidBeginRecord(sender: button)
        case .changed:
            
            let translate = CGPoint(x: location.x - startLocation.x, y: location.y - startLocation.y)
            
            if !button.bounds.contains(translate) {
                
                if state == .Recording {
                    userDidTapRecordThenSwipe(sender: button)
                }
            }
            
        case .ended:
            
            if state == .None { return }
            
            let translate = CGPoint(x: location.x - startLocation.x, y: location.y - startLocation.y)
            
            if !button.frame.contains(translate) {
                
                userDidStopRecording(sender: button)
                
            }
            
        case .failed, .possible ,.cancelled :
            
            if state == .Recording {
                userDidStopRecording(sender: button)
            }
            else {
                userDidTapRecordThenSwipe(sender: button)
            }
        }
        
        
    }
    
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

extension ViewController : SPKRecordViewDelegate {
    
    func SPKRecordViewDidCancelRecord(sender: SPKRecordView, button: UIView) {
        
        sender.state = .None
        
        print("Cancelled")
    }
    
    func SPKRecordViewDidSelectRecord(sender: SPKRecordView, button: UIView) {
        
        sender.state = .Recording
        
        print("Began " + NSUUID().uuidString)
        
    }
    
    func SPKRecordViewDidStopRecord(sender : SPKRecordView, button: UIView) {
        
        sender.state = .None
        
        print("Done")
    }
}

＆＃13;

用法：

＆＃13;

import UIKit

let rec = SPKRecordView(frame: CGRect.zero)

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        rec.delegate = self
        view.addSubview(rec)
        
        let hConsts = NSLayoutConstraint.constraints(withVisualFormat: "H:[bt]-(100)-|", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["bt":rec])
        view.addConstraints(hConsts)
        
        let vConsts = NSLayoutConstraint.constraints(withVisualFormat: "V:|-(100)-[bt]", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["bt":rec])
        view.addConstraints(vConsts)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}

＆＃13;

Answer 2

这类似于Whatsapp录制行为只是为了好玩，但它写在protocol SPKRecordViewDelegate: class { func SPKRecordViewDidSelectRecord(sender : SPKRecordView, button: UIView) func SPKRecordViewDidStopRecord(sender : SPKRecordView, button: UIView) func SPKRecordViewDidCancelRecord(sender : SPKRecordView, button: UIView) } class SPKRecordView: UIView { enum SPKRecordViewState { case Recording case None } var state : SPKRecordViewState = .None { didSet { UIView.animateWithDuration(0.3) { () -> Void in self.slideToCancel.alpha = 1.0 self.invalidateIntrinsicContentSize() self.setNeedsLayout() self.layoutIfNeeded() } } } let recordButton : UIButton = UIButton(type: .Custom) let slideToCancel : UILabel = UILabel(frame: CGRectZero) weak var delegate : SPKRecordViewDelegate? override init(frame: CGRect) { super.init(frame: frame) self.translatesAutoresizingMaskIntoConstraints = false setupRecordButton() setupLabel() } func setupRecordButton() { recordButton.translatesAutoresizingMaskIntoConstraints = false addSubview(recordButton) let hConsts = NSLayoutConstraint.constraintsWithVisualFormat("H:[recordButton]|", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["recordButton":recordButton]) self.addConstraints(hConsts) let vConsts = NSLayoutConstraint.constraintsWithVisualFormat("V:|[recordButton]|", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["recordButton":recordButton]) self.addConstraints(vConsts) recordButton.setImage(UIImage(named: "record")!, forState: .Normal) let longPress = UILongPressGestureRecognizer(target: self, action: "userDidTapRecord:") longPress.cancelsTouchesInView = false longPress.allowableMovement = 10 longPress.minimumPressDuration = 0.2 recordButton.addGestureRecognizer(longPress) } func setupLabel() { slideToCancel.translatesAutoresizingMaskIntoConstraints = false addSubview(slideToCancel) backgroundColor = UIColor.clearColor() let hConsts = NSLayoutConstraint.constraintsWithVisualFormat("H:|[slideToCancel][bt]", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["slideToCancel":slideToCancel,"bt":recordButton]) self.addConstraints(hConsts) let vConsts = NSLayoutConstraint.constraintsWithVisualFormat("V:|[slideToCancel]|", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["slideToCancel":slideToCancel]) self.addConstraints(vConsts) slideToCancel.alpha = 0.0 slideToCancel.font = UIFont(name: "Lato-Bold", size: 17) slideToCancel.textAlignment = .Center slideToCancel.textColor = UIColor.blackColor() } override func intrinsicContentSize() -> CGSize { if state == .None { return recordButton.intrinsicContentSize() } else { return CGSizeMake(recordButton.intrinsicContentSize().width * 3, recordButton.intrinsicContentSize().height) } } func userDidTapRecordThenSwipe(sender: UIButton) { slideToCancel.text = nil delegate?.SPKRecordViewDidCancelRecord(self, button: sender) } func userDidStopRecording(sender: UIButton) { slideToCancel.text = nil delegate?.SPKRecordViewDidStopRecord(self, button: sender) } func userDidBeginRecord(sender : UIButton) { slideToCancel.text = "Slide to cancel <" delegate?.SPKRecordViewDidSelectRecord(self, button: sender) } func userDidTapRecord(gesture: UIGestureRecognizer) { let button = gesture.view as! UIButton let location = gesture.locationInView(button) var startLocation = CGPointZero switch gesture.state { case .Began: startLocation = location userDidBeginRecord(button) case .Changed: let translate = CGPoint(x: location.x - startLocation.x, y: location.y - startLocation.y) if !CGRectContainsPoint(button.bounds, translate) { if state == .Recording { userDidTapRecordThenSwipe(button) } } case .Ended: if state == .None { return } let translate = CGPoint(x: location.x - startLocation.x, y: location.y - startLocation.y) if !CGRectContainsPoint(button.frame, translate) { userDidStopRecording(button) } case .Failed, .Possible ,.Cancelled : if state == .Recording { userDidStopRecording(button) } else { userDidTapRecordThenSwipe(button)} } } required init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") } } extension ViewController : SPKRecordViewDelegate { func SPKRecordViewDidCancelRecord(sender: SPKRecordView, button: UIView) { sender.state = .None print("Cancelled") } func SPKRecordViewDidSelectRecord(sender: SPKRecordView, button: UIView) { sender.state = .Recording print("Began " + NSUUID().UUIDString) } func SPKRecordViewDidStopRecord(sender : SPKRecordView, button: UIView) { sender.state = .None print("Done") } }

class HomeViewController: UIViewController {


let rec = SPKRecordView(frame: CGRectZero)

override func viewDidLoad() {
    super.viewDidLoad()

    rec.delegate = self
    view.addSubview(rec)

    let hConsts = NSLayoutConstraint.constraintsWithVisualFormat("H:[bt]-(100)-|", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["bt":rec])
    view.addConstraints(hConsts)

    let vConsts = NSLayoutConstraint.constraintsWithVisualFormat("V:|-(100)-[bt]", options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: ["bt":rec])
    view.addConstraints(vConsts)
}
}

用法：

$qr1

如何使用幻灯片创建一个类似录制按钮的whatsapp来取消使用IPhone sdk中的Objective C.

2 个答案: