ios与android指纹识别,iOS开发swift -- 指纹识别
//導入類庫 import LocalAuthentication
func touchID() {
//創建上下文
let context = LAContext()
var error : NSError?
//判斷設備是否支持指紋識別
if context.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: &error)
{
//開始指紋識別
context.evaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, localizedReason: "請用指紋解鎖", reply: { (success, error) in
if success {
debugPrint("successful")
//do what you want
}else
{
if let error = error as NSError?
{
switch error.code {
case LAError.appCancel.rawValue:
debugPrint("Authentication was cancelled by application")
case LAError.authenticationFailed.rawValue:
debugPrint("The user failed to provide valid credentials")
case LAError.invalidContext.rawValue:
debugPrint("The context is invalid")
case LAError.passcodeNotSet.rawValue:
debugPrint("Passcode is not set on the device")
case LAError.systemCancel.rawValue:
debugPrint("Authentication was cancelled by the system")
case LAError.touchIDLockout.rawValue:
debugPrint("Too many failed attempts.")
case LAError.touchIDNotAvailable.rawValue:
debugPrint("TouchID is not available on the device")
case LAError.userCancel.rawValue:
debugPrint("The user did cancel")
case LAError.userFallback.rawValue:
debugPrint("The user chose to use the fallback")
default:
debugPrint( "Did not find error code on LAError object")
}
}
}
})
}else
{
debugPrint("no support")
}
}
總結
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