{"id":1086,"date":"2016-06-02T19:19:48","date_gmt":"2016-06-02T11:19:48","guid":{"rendered":"http:\/\/zerobox.org\/notes\/?p=1086"},"modified":"2016-06-02T19:36:01","modified_gmt":"2016-06-02T11:36:01","slug":"ios%e6%8c%87%e7%ba%b9%e8%a7%a3%e9%94%81%e3%80%81%e6%89%8b%e5%8a%bf%e8%a7%a3%e9%94%81-swift%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"http:\/\/zerobox.org\/notes\/1086.html","title":{"rendered":"iOS\u6307\u7eb9\u89e3\u9501\u3001\u624b\u52bf\u89e3\u9501–Swift\u4ee3\u7801"},"content":{"rendered":"
\n

\u4e00\u3001\u6307\u7eb9\u9a8c\u8bc1<\/p>\n

iPhone \u7684Home\u952e \u4e0a\u7684\u91d1\u5c5e\u73af \u80fd\u611f\u5e94\u624b\u6307\uff0c\u901a\u77e5Touch ID \u8bfb\u53d6\u6307\u7eb9\uff0cTouch ID \u4f20\u611f\u5668 \u53ef\u4ee5\u62cd\u6444 \u76ae\u80a4 \u76ae\u4e0b\u5c42\u6307\u7eb9\u3002<\/p>\n

\u6bcf\u6b21\u4f7f\u7528\u6307\u7eb9\uff0cTouch ID \u4f1a\u6301\u7eed\u7684\u6dfb\u52a0\u65b0\u7684\u6307\u7eb9\u7279\u6027\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u51c6\u786e\u3001\u5b89\u5168\u6027\u3002<\/p>\n

\"\"<\/p>\n

 <\/p>\n

Touch ID \u4e0d\u4f1a\u50a8\u5b58\u6307\u7eb9\u7684\u56fe\u50cf\u3002\u5b83\u53ea\u5b58\u50a8\u6307\u7eb9\u7684\u6570\u5b66\u8868\u8fbe\u5f0f\u3002\u8bbe\u5907\u4e2d\u7684\u82af\u7247\u8fd8\u5305\u542b\u79f0\u4e3a\u201cSecure Enclave\u201d\u7684\u9ad8\u7ea7\u5b89\u5168\u67b6\u6784\uff0c\u4e13\u95e8\u7528\u4e8e\u4fdd\u62a4\u5bc6\u7801\u548c\u6307\u7eb9\u6570\u636e\u3002\u6307\u7eb9\u6570\u636e\u901a\u8fc7 Secure Enclave \u7684\u4e13\u7528\u5bc6\u94a5\u5f97\u5230\u52a0\u5bc6\u548c\u4fdd\u62a4\u3002iOS \u548c\u5176\u4ed6 app \u7edd\u4e0d\u4f1a\u8bbf\u95ee\u60a8\u7684\u6307\u7eb9\u6570\u636e\uff0c\u6307\u7eb9\u6570\u636e\u7edd\u4e0d\u4f1a\u5b58\u50a8\u5230 Apple \u670d\u52a1\u5668\u3001 iCloud \u6216\u5176\u4ed6\u5730\u65b9\u3002<\/p>\n

 <\/p>\n

 <\/p>\n

1\u3001 \u00a0import LocalAuthentication<\/p>\n

 <\/p>\n

2\u3001\u7528\u00a0LAContext \u7c7b\u7684 \u00a0canEvaluatePolicy \u65b9\u6cd5 \u5224\u65ad\u8bbe\u5907\u662f\u5426\u652f\u6301\u6307\u7eb9\uff0c\u7136\u540e\u7528\u00a0evaluatePolicy \u65b9\u6cd5 \u6765\u8fdb\u884c\u6307\u7eb9\u9a8c\u8bc1\u3002<\/p>\n

\u6267\u884cevaluatePolicy\u65b9\u6cd5\uff0c\u7cfb\u7edf\u4f1a\u81ea\u52a8\u5f39\u51fa \u9a8c\u8bc1\u6307\u7eb9\u7684\u63d0\u793a\u6846\uff0c\u63d0\u793a\u526f\u6807\u9898\u53ef\u4ee5\u81ea\u5df1\u8bbe\u5b9a\u3002<\/p>\n

\u5982\u679c\u8f93\u5165\u9519\u8bef\u540e\uff0c\u7cfb\u7edf\u4f1a\u81ea\u52a8\u8fdb\u5165\u201c\u518d\u8bd5\u4e00\u6b21\u201d\u7684\u63d0\u793a\u6846\uff0c\u70b9\u51fb\u53f3\u8fb9\u7684 \u201c\u8f93\u5165\u5bc6\u7801\u201d\u9009\u9879\uff0c\u8981\u81ea\u5df1\u5199\u4ee3\u7801\u5b9e\u73b0 \u8f93\u5165\u5bc6\u7801\u7684\u5f39\u6846\u3002<\/p>\n

\"\"<\/p>\n

 <\/p>\n

 <\/p>\n

Swift Touch ID \u4ee3\u7801<\/span><\/div>\n<\/div>\n
let laContext = LAContext()
\nvar error:NSError?
\nif laContext.canEvaluatePolicy(LAPolicy.DeviceOwnerAuthenticationWithBiometrics, error: &error) {
\nlaContext.evaluatePolicy(LAPolicy.DeviceOwnerAuthenticationWithBiometrics,
\nlocalizedReason: “\u8bf7\u9a8c\u8bc1\u5df2\u6709\u7684\u6307\u7eb9”,
\nreply: {(success: Bool, error: NSError?) in
\n\/\/\u8fd9\u91cc\u4e0d\u662f\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u6267\u884c\u7684\uff0c\u662f\u591a\u7ebf\u7a0b\u3002
\nif success {
\nprint(“\u9a8c\u8bc1\u6307\u7eb9\u6210\u529f”)
\nNSOperationQueue.mainQueue().addOperationWithBlock({ () -> Void in
\n\/\/\u4e3b\u7ebf\u7a0b\u5237\u65b0View
\n})
\n} else {
\nprint(error)
\nswitch error?.code {
\ncase LAError.AuthenticationFailed.rawValue?:
\nprint(“\u6388\u6743\u5931\u8d25”)
\ncase LAError.UserCancel.rawValue?:
\nprint(“\u7528\u6237\u53d6\u6d88\u9a8c\u8bc1Touch ID”)
\ncase LAError.UserFallback.rawValue?:
\nprint(“\u7528\u6237\u70b9\u51fb \u8f93\u5165\u5bc6\u7801\uff0c\u5207\u6362\u4e3b\u7ebf\u7a0b\u5904\u7406”)
\nNSOperationQueue.mainQueue().addOperationWithBlock({ () -> Void in
\nself.showPasswordAlert()
\n})
\ncase LAError.SystemCancel.rawValue?:
\nprint(“\u5207\u6362\u5230\u5176\u4ed6APP\uff0c\u7cfb\u7edf\u53d6\u6d88\u9a8c\u8bc1Touch ID”)
\ncase LAError.PasscodeNotSet.rawValue?:
\nprint(“\u7cfb\u7edf\u672a\u8bbe\u7f6e\u5bc6\u7801”)
\ncase LAError.TouchIDNotAvailable.rawValue?:
\nprint(“\u8bbe\u5907Touch ID\u4e0d\u53ef\u7528\uff0c\u4f8b\u5982\u672a\u6253\u5f00”)
\ncase LAError.TouchIDNotEnrolled.rawValue?:
\nprint(“\u8bbe\u5907Touch ID\u4e0d\u53ef\u7528\uff0c\u7528\u6237\u672a\u5f55\u5165”)
\ncase LAError.TouchIDLockout.rawValue?:
\nprint(“Touch ID\u8f93\u5165\u9519\u8bef\u591a\u6b21\uff0c\u5df2\u88ab\u9501”)
\ncase LAError.AppCancel.rawValue?:
\nprint(“\u7528\u6237\u9664\u5916\u7684APP\u6302\u8d77\uff0c\u5982\u7535\u8bdd\u63a5\u5165\u7b49\u5207\u6362\u5230\u4e86\u5176\u4ed6APP”)
\ndefault:
\nprint(“\u5176\u4ed6\u60c5\u51b5”)
\nNSOperationQueue.mainQueue().addOperationWithBlock({ () -> Void in
\nself.showPasswordAlert()
\n})
\n}
\n}
\n})} else {
\nprint(error)
\n}<\/div>\n
<\/div>\n

 <\/p>\n

\n

\u4e8c\u3001\u624b\u52bf\u5bc6\u7801<\/p>\n

 <\/p>\n

\"\"<\/p>\n

 <\/p>\n

1\u3001\u7528UIButton\u7ec4\u6210\u624b\u52bf\u7684\u8282\u70b9\u3002<\/p>\n

\u5f53\u624b\u6307\u63a5\u89e6\u5c4f\u5e55\u65f6\uff0c\u8c03\u7528\u91cd\u5199\u7684\u00a0touchesBegan:withEvent\u65b9\u6cd5\uff08\u5728touchesBegan\u91cc\u6761\u7528setNeedsDisplay\uff0c\u8fd9\u6837\u5c31\u4f1a\u81ea\u52a8\u8c03\u7528drawRect\u65b9\u6cd5\uff09\u3002<\/p>\n

\u5f53\u624b\u6307\u5728\u5c4f\u5e55\u4e0a\u6ed1\u52a8\u65f6\uff0c\u8c03\u7528\u91cd\u5199\u7684touchesEnded:withEvent\u65b9\u6cd5\u3002<\/p>\n

\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u6267\u884c\u7684\u64cd\u4f5c\u662f\u4e00\u6837\u7684\uff1a\u901a\u8fc7locationInView\u83b7\u53d6 \u89e6\u6478\u7684\u5750\u6807\uff0c\u7136\u540e\u7528\u00a0CGRectContainsPoint \u624b\u6307\u662f\u5426\u7ecf\u8fc7UIButton\uff0c\u5982\u679c\u7ecf\u8fc7\u6309\u94ae\uff0c\u5c31\u66f4\u6362\u6309\u94ae\u7684\u56fe\u7247\uff0c\u540c\u65f6 \u4fdd\u5b58\u5212\u8fc7\u6309\u94ae\u7684tag\u3002<\/p>\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b \u8df3\u8dc3\u8fde\u7ebf\u7b2c1\u4e2a\u548c\u7b2c3\u4e2a\u8282\u70b9\uff0c\u4e2d\u95f4\u7684\u7b2c2\u4e2a\u8282\u70b9 \u4f1a\u88ab\u5ffd\u7565\uff0c\u6240\u4ee5\u8981\u5355\u72ec\u8fdb\u884c\u5904\u7406\u3002\u6839\u636e\u8fde\u7ebf \u6700\u540e2\u4e2aUIButton\u7684\u5750\u6807 \u8ba1\u7b97\u51fa\u7b2c1\u4e2a\u548c\u7b2c3\u4e2a\u8282\u70b9\u00a0\u4e2d\u95f4\u7684\u5750\u6807\uff0c\u5224\u65ad\u8be5\u5750\u6807\u662f\u5426\u5b58\u5728UIButton\uff0c\u5982\u679c\u5b58\u5728\u5c31\u52a0\u5165\u8bbe\u7f6e\u9009\u4e2d\uff0c\u5e76\u52a0\u5165\u9009\u4e2d\u6570\u7ec4\u3002<\/p>\n

\u5230\u8fd9\u91cc \u5c31\u5df2\u7ecf\u5b9e\u73b0\u4e86 \u624b\u6307\u6ed1\u8fc7 \u8282\u70b9\u7684\u65f6\u5019 \u8282\u70b9\u88ab\u9009\u4e2d\u7684\u6548\u679c\uff1a<\/p>\n

\/\/ MARK: – Override
\n\/\/ \u5f53\u624b\u6307\u63a5\u89e6\u5c4f\u5e55\u65f6\uff0c\u5c31\u4f1a\u8c03\u7528touchesBegan:withEvent\u65b9\u6cd5\uff1b
\noverride func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
\nprint(“\u6267\u884ctouchesBegan”)
\nselectBtnTagArray.removeAll()
\ntouchesChange(touches)
\n}<\/p>\n

\/\/\u5f53\u624b\u6307\u5728\u5c4f\u5e55\u4e0a\u79fb\u52a8\u65f6\uff0c\u8c03\u7528touchesMoved:withEvent\u65b9\u6cd5\uff1b
\noverride func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
\ntouchesChange(touches)
\n}<\/p>\n

\/\/\u5f53\u89e6\u6478\u88ab\u53d6\u6d88\uff08\u6bd4\u5982\u89e6\u6478\u8fc7\u7a0b\u4e2d\u88ab\u6765\u7535\u6253\u65ad\uff09\uff0c\u5c31\u4f1a\u8c03\u7528touchesCancelled:withEvent\u65b9\u6cd5\u3002
\noverride func touchesCancelled(touches: Set<UITouch>?, withEvent event: UIEvent?) {<\/p>\n

}
\n\/\/\u5f53\u624b\u6307\u79bb\u5f00\u5c4f\u5e55\u65f6\uff0c\u5c31\u4f1a\u8c03\u7528touchesEnded:withEvent\u65b9\u6cd5\uff1b
\noverride func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
\nprint(“\u6267\u884ctouchesEnded”)
\nvar alertTitle = “\u8bf7\u8bbe\u7f6e\u6b63\u786e\u7684\u624b\u52bf”
\nvar alertMessage = “\u624b\u52bf\u5bc6\u7801\u4e0d\u80fd\u5c11\u4e8e4\u4e2a”
\nvar isSuccess = false<\/p>\n

if selectBtnTagArray.count >= 4 {
\nalertTitle = “\u624b\u52bf\u5bc6\u7801\u8bbe\u7f6e\u6210\u529f”
\nisSuccess = true
\nalertMessage = “\u5bc6\u7801\u4e3a\uff1a\\(selectBtnTagArray)”
\n}<\/p>\n

gestureLockDelegate!.gestureLockSuccess(isSuccess, title: alertTitle, message: alertMessage)<\/p>\n

gesturePoint = CGPointZero;
\nself.setNeedsDisplay()
\n}<\/p>\n

\/\/ MARK: – PrivateMethod
\nprivate func initButtons() {
\nfor i in 0…8 {
\n\/\/\u7b2c\u51e0\u884c
\nlet row = i \/ 3
\nlet loc = i % 3<\/p>\n

\/\/\u4e24\u4e2abutton\u7684\u95f4\u8ddd
\nlet btnSpace = (screenWidth – 3*btnWH)\/4
\nlet btnX = btnSpace + (btnWH + btnSpace) * CGFloat(loc)
\nlet btnY = 70 + btnSpace + (btnWH + btnSpace) * CGFloat(row)<\/p>\n

let gestureNodeBtn = UIButton(frame:CGRectMake(btnX, btnY, btnWH, btnWH))
\ngestureNodeBtn.tag = i
\ngestureNodeBtn.userInteractionEnabled = false \/\/\u4e0d\u54cd\u5e94\u7528\u6237\u7684\u4ea4\u4e92\u3002\u4e00\u5b9a\u8981\u52a0\u4e0a\u8fd9\u53e5
\ngestureNodeBtn.setImage(UIImage(named: btnImgNormal), forState: .Normal)
\nself.addSubview(gestureNodeBtn)
\nbtnArray.append(gestureNodeBtn)
\n}
\n}<\/p>\n

private func touchesChange(touches: Set<UITouch>) {
\n\/\/\u83b7\u53d6 \u89e6\u6478\u5bf9\u8c61 ,\u89e6\u6478\u5bf9\u8c61\u7684\u4f4d\u7f6e\u5750\u6807\u6765\u5b9e\u73b0
\ngesturePoint = touches.first!.locationInView(self)<\/p>\n

for btn in btnArray {
\n\/\/\u5224\u65ad \u624b\u6307\u7684\u5750\u6807 \u662f\u5426\u5728 button\u7684\u5750\u6807\u91cc
\nif !selectBtnTagArray.contains(btn.tag) && CGRectContainsPoint(btn.frame, gesturePoint) {
\n\/\/\u5904\u7406\u8df3\u8dc3\u8fde\u7ebf
\nvar lineCenterPoint:CGPoint = CGPoint()<\/p>\n

if selectBtnTagArray.count > 0 {
\nlineCenterPoint = centerPoint(btn.frame.origin, endPoint: btnArray[selectBtnTagArray.last!].frame.origin)
\n}<\/p>\n

\/\/\u4fdd\u5b58\u4e2d\u95f4\u8df3\u8dc3 \u8fc7\u7684\u8282\u70b9
\nfor btn in btnArray {
\nif !selectBtnTagArray.contains(btn.tag) && CGRectContainsPoint(btn.frame, lineCenterPoint) {
\nbtn.setImage(UIImage(named: btnImgSelected), forState: .Normal)
\nselectBtnTagArray.append(btn.tag)
\n}
\n}<\/p>\n

\/\/\u4fdd\u5b58\u5212\u8fc7\u7684\u6309\u94ae\u7684tag
\nselectBtnTagArray.append(btn.tag)
\nbtn.setImage(UIImage(named: btnImgSelected), forState: .Normal)
\n}
\n}<\/p>\n

\/\/setNeedsDisplay\u4f1a\u81ea\u52a8\u8c03\u7528drawRect\u65b9\u6cd5 \u8fdb\u884c\u753b\u7ebf
\nself.setNeedsDisplay()
\n}<\/p>\n

\/\/\u8ba1\u7b972\u4e2a\u8282\u70b9\u4e2d\u5fc3\u7684\u5750\u6807
\nprivate func centerPoint(startPoint: CGPoint, endPoint:CGPoint) -> CGPoint {
\nlet rightPoint = startPoint.x > endPoint.x ? startPoint.x : endPoint.x
\nlet leftPoint = startPoint.x < endPoint.x ? startPoint.x : endPoint.x<\/p>\n

let topPoint = startPoint.y > endPoint.y ? startPoint.y : endPoint.y
\nlet bottomPoint = startPoint.y < endPoint.y ? startPoint.y : endPoint.y<\/p>\n

\/\/x\u5750\u6807\uff1a leftPoint +\uff08rightPoint-leftPoint)\/2 = (rightPoint+leftPoint)\/2
\nreturn CGPointMake((rightPoint + leftPoint)\/2 + btnWH\/2, (topPoint + bottomPoint)\/2 + btnWH\/2);
\n}<\/p>\n

func recoverNodeStatus() {
\nselectBtnTagArray.removeAll()
\nfor btn in btnArray {
\nbtn.setImage(UIImage(named: btnImgNormal), forState: .Normal)
\n}
\nself.setNeedsDisplay()
\n}<\/p>\n

<\/div>\n

 <\/p>\n

2\u3001\u753b\u7ebf\uff1a\u5728drawRect\u65b9\u6cd5\u4e2d\u8fdb\u884c\u753b\u7ebf\u3002<\/p>\n

override func drawRect(rect: CGRect) {
\nprint(“\u6267\u884cdrawRect”)
\nlet context = UIGraphicsGetCurrentContext() \/\/\u83b7\u53d6\u753b\u7b14\u4e0a\u4e0b\u6587<\/p>\n

var i = 0
\nfor tag in selectBtnTagArray {
\nif (0 == i) {
\n\/\/\u5f00\u59cb\u753b\u7ebf,\u8bbe\u7f6e\u76f4\u7ebf\u7684\u8d77\u70b9\u5750\u6807
\nCGContextMoveToPoint(context, btnArray[tag].center.x, btnArray[tag].center.y)
\n} else {
\n\/\/\u753b\u76f4\u7ebf,\u8bbe\u7f6e\u76f4\u7ebf\u7684\u7ec8\u70b9\u5750\u6807
\nCGContextAddLineToPoint(context, btnArray[tag].center.x,btnArray[tag].center.y)
\n}
\ni = i+1
\n}<\/p>\n

\/\/\u5982\u679c\u6709\u9009\u4e2d\u7684\u8282\u70b9\uff0c\u5c31\u53d6 \u8ddf\u7740 \u624b\u6307\u7684\u6ed1\u52a8 \u753b\u7ebf
\nif (selectBtnTagArray.count > 0) {
\n\/\/ \u79fb\u9664\u6700\u540e\u4e00\u6761\u591a\u4f59\u7684\u7ebf\uff0c
\nif gesturePoint != CGPointZero {
\nCGContextAddLineToPoint(context, gesturePoint.x, gesturePoint.y)
\n}
\n}<\/p>\n

CGContextSetLineWidth(context, 10) \/\/\u8bbe\u7f6e\u753b\u7b14\u5bbd\u5ea6
\nCGContextSetLineJoin(context, .Round) \/\/\u4e24\u4e2a\u7ebf\u76f8\u4ea4\u70b9 \u5e73\u6ed1\u5904\u7406
\nCGContextSetLineCap(context, .Round) \/\/\u8bbe\u7f6e\u7ebf\u6761\u4e24\u7aef\u7684\u6837\u5f0f\u4e3a\u5706\u89d2
\nCGContextSetRGBStrokeColor(context, 227\/255.0, 54\/255.0, 58\/255.0, 1)
\nCGContextStrokePath(context) \/\/ \/\/\u5bf9\u7ebf\u6761\u8fdb\u884c\u6e32\u67d3
\n}<\/p>\n

<\/div>\n

 <\/p>\n

Demo\u5730\u5740\uff1ahttps:\/\/github.com\/bugaoshuni\/TouchIDAndGestureLock<\/a><\/p>\n

 <\/p>\n<\/div>\n

\u4f5c\u8005\uff1a\u4e91\u7aef\u4e4b\u5dc5<\/a>
\n\u51fa\u5904\uff1ahttp:\/\/www.cnblogs.com\/dahe007\/<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"

\u4e00\u3001\u6307\u7eb9\u9a8c\u8bc1 iPhone \u7684Home\u952e \u4e0a\u7684\u91d1\u5c5e\u73af \u80fd\u611f\u5e94\u624b\u6307\uff0c\u901a\u77e5Touch …<\/p>\n

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