#import "AppDelegate.h"#import "ViewController.h"@interface AppDelegate ()@end@implementation AppDelegate- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { //appdelegate _window = [[UIWindow alloc]initWithFrame:[UIScreen mainScreen].bounds]; _window.backgroundColor = [UIColor whiteColor]; [_window makeKeyAndVisible]; ViewController *vc = [[ViewController alloc]init]; UINavigationController *na = [[UINavigationController alloc]initWithRootViewController:vc]; _window.rootViewController = na; return YES;}

 -canEvaluatePolicy:error: //-(BOOL)canEvaluatePolicy:(LAPolicy)policy error:(NSError * __autoreleasing *)error __attribute__((swift_error(none))); -evaluatePolicy:localizedReason:reply: //- (void)evaluatePolicy:(LAPolicy)policy localizedReason:(NSString *)localizedReason reply:(void(^)(BOOL success, NSError * __nullable error))reply;

- (void)viewDidLoad { [super viewDidLoad]; self.title = @"TouchIDSimpleDemoOne"; LAContext *context = [[LAContext alloc]init]; NSError *error; NSString *result = @"需要你身份驗證呢";  if ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) { [context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:result reply:^(BOOL success, NSError *error) { if (success) { //驗證成功，主線程處理UI //這個地方呢就是寫一些驗證成功之后需要做些什么事情的代碼。 NSLog(@"驗證成功"); } else { //以下是一些驗證失敗的原因啥的 NSLog(@"%@",error.localizedDescription); switch (error.code) {  case LAErrorSystemCancel:  {  NSLog(@"切換到其他APP，系統取消驗證Touch ID");  //切換到其他APP，系統取消驗證Touch ID  break;  }  case LAErrorUserCancel:  {  NSLog(@"用戶取消驗證Touch ID");  //用戶取消驗證Touch ID  break;  }  case LAErrorUserFallback:  {  NSLog(@"用戶選擇輸入密碼");  [[NSOperationQueue mainQueue] addOperationWithBlock:^{  //用戶選擇其他驗證方式，切換主線程處理  }];  break;  }  default:  {  NSLog(@"LAErrorAuthenticationFailed，授權失敗");  //授權失敗  [[NSOperationQueue mainQueue] addOperationWithBlock:^{  //其他情況，切換主線程處理  }];  break;  } } } }];  }else { //不支持指紋識別，LOG出錯誤詳情 switch (error.code) { case LAErrorTouchIDNotEnrolled: { NSLog(@"設備Touch ID不可用，用戶未錄入"); break; } case LAErrorPasscodeNotSet: { NSLog(@"系統未設置密碼"); break; } case LAErrorTouchIDNotAvailable: { NSLog(@"設備Touch ID不可用，例如未打開"); break; } default: { NSLog(@"系統未設置密碼"); break; } } NSLog(@"%@",error.localizedDescription); } }

//指紋驗證返回值typedef NS_ENUM(NSInteger, LAError){ /// Authentication was not successful, because user failed to provide valid credentials. LAErrorAuthenticationFailed = kLAErrorAuthenticationFailed, /// Authentication was canceled by user (e.g. tapped Cancel button). LAErrorUserCancel = kLAErrorUserCancel, /// Authentication was canceled, because the user tapped the fallback button (Enter Password). LAErrorUserFallback = kLAErrorUserFallback, /// Authentication was canceled by system (e.g. another application went to foreground). LAErrorSystemCancel = kLAErrorSystemCancel, /// Authentication could not start, because passcode is not set on the device. LAErrorPasscodeNotSet = kLAErrorPasscodeNotSet, /// Authentication could not start, because Touch ID is not available on the device. LAErrorTouchIDNotAvailable = kLAErrorTouchIDNotAvailable, /// Authentication could not start, because Touch ID has no enrolled fingers. LAErrorTouchIDNotEnrolled = kLAErrorTouchIDNotEnrolled, /// Authentication was not successful, because there were too many failed Touch ID attempts and /// Touch ID is now locked. Passcode is required to unlock Touch ID, e.g. evaluating /// LAPolicyDeviceOwnerAuthenticationWithBiometrics will ask for passcode as a prerequisite. LAErrorTouchIDLockout NS_ENUM_AVAILABLE(10_11, 9_0) = kLAErrorTouchIDLockout, /// Authentication was canceled by application (e.g. invalidate was called while /// authentication was in progress). LAErrorAppCancel NS_ENUM_AVAILABLE(10_11, 9_0) = kLAErrorAppCancel, /// LAContext passed to this call has been previously invalidated. LAErrorInvalidContext NS_ENUM_AVAILABLE(10_11, 9_0) = kLAErrorInvalidContext} NS_ENUM_AVAILABLE(10_10, 8_0);

- (void)viewDidLoad { [super viewDidLoad]; //初始化 WJTouchID *touchid = [[WJTouchID alloc]init]; [touchid startWJTouchIDWithMessage:WJNotice(@"自定義信息", @"The Custom Message") fallbackTitle:WJNotice(@"", @"Fallback Title") delegate:self]; self.touchID = touchid;}

@required //TouchID驗證成功- (void)WJTouchIDAuthorizeSuccess; //TouchID驗證失敗- (void)WJTouchIDAuthorizeFailure;@optional //當前設備不支持指紋識別- (void)WJTouchIDIsNotSupport; //當前軟件被掛起取消了授權(如突然來了電話,應用進入前臺)- (void)WJTouchIDAuthorizeErrorAppCancel; //取消TouchID驗證 (用戶點擊了取消)- (void)WJTouchIDAuthorizeErrorUserCancel; //在TouchID對話框中點擊輸入密碼按鈕- (void)WJTouchIDAuthorizeErrorUserFallback; //在驗證的TouchID的過程中被系統取消 例如突然來電話、按了Home鍵、鎖屏...- (void)WJTouchIDAuthorizeErrorSystemCancel; //無法啟用TouchID,設備沒有設置密碼- (void)WJTouchIDAuthorizeErrorPasscodeNotSet; //多次連續使用Touch ID失敗，Touch ID被鎖，需要用戶輸入密碼解鎖- (void)WJTouchIDAuthorizeErrorTouchIDLockout; //當前軟件被掛起取消了授權 (授權過程中,LAContext對象被釋)- (void)WJTouchIDAuthorizeErrorInvalidContext; //設備沒有錄入TouchID,無法啟用TouchID- (void)WJTouchIDAuthorizeErrorTouchIDNotEnrolled; //該設備的TouchID無效- (void)WJTouchIDAuthorizeErrorTouchIDNotAvailable;