#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(yàn)證呢";  if ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) { [context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:result reply:^(BOOL success, NSError *error) {  if (success)  {  //驗(yàn)證成功，主線程處理UI  //這個(gè)地方呢就是寫(xiě)一些驗(yàn)證成功之后需要做些什么事情的代碼。  NSLog(@"驗(yàn)證成功");  }  else  {  //以下是一些驗(yàn)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(tǒng)取消驗(yàn)證Touch ID");   //切換到其他APP，系統(tǒng)取消驗(yàn)證Touch ID   break;   }   case LAErrorUserCancel:   {   NSLog(@"用戶取消驗(yàn)證Touch ID");   //用戶取消驗(yàn)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(yàn)證方式，切換主線程處理   }];   break;   }   default:   {   NSLog(@"LAErrorAuthenticationFailed，授權(quán)失敗");   //授權(quán)失敗   [[NSOperationQueue mainQueue] addOperationWithBlock:^{    //其他情況，切換主線程處理   }];   break;   }  }  } }];  }else { //不支持指紋識(shí)別，LOG出錯(cuò)誤詳情 switch (error.code) {  case LAErrorTouchIDNotEnrolled:  {  NSLog(@"設(shè)備Touch ID不可用，用戶未錄入");  break;  }  case LAErrorPasscodeNotSet:  {  NSLog(@"系統(tǒng)未設(shè)置密碼");  break;  }  case LAErrorTouchIDNotAvailable:  {  NSLog(@"設(shè)備Touch ID不可用，例如未打開(kāi)");  break;  }  default:  {  NSLog(@"系統(tǒng)未設(shè)置密碼");  break;  } } NSLog(@"%@",error.localizedDescription); } }

//指紋驗(yàn)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(yàn)證成功- (void)WJTouchIDAuthorizeSuccess; //TouchID驗(yàn)證失敗- (void)WJTouchIDAuthorizeFailure;@optional //當(dāng)前設(shè)備不支持指紋識(shí)別- (void)WJTouchIDIsNotSupport; //當(dāng)前軟件被掛起取消了授權(quán)(如突然來(lái)了電話,應(yīng)用進(jìn)入前臺(tái))- (void)WJTouchIDAuthorizeErrorAppCancel; //取消TouchID驗(yàn)證 (用戶點(diǎn)擊了取消)- (void)WJTouchIDAuthorizeErrorUserCancel; //在TouchID對(duì)話框中點(diǎn)擊輸入密碼按鈕- (void)WJTouchIDAuthorizeErrorUserFallback; //在驗(yàn)證的TouchID的過(guò)程中被系統(tǒng)取消 例如突然來(lái)電話、按了Home鍵、鎖屏...- (void)WJTouchIDAuthorizeErrorSystemCancel; //無(wú)法啟用TouchID,設(shè)備沒(méi)有設(shè)置密碼- (void)WJTouchIDAuthorizeErrorPasscodeNotSet; //多次連續(xù)使用Touch ID失敗，Touch ID被鎖，需要用戶輸入密碼解鎖- (void)WJTouchIDAuthorizeErrorTouchIDLockout; //當(dāng)前軟件被掛起取消了授權(quán) (授權(quán)過(guò)程中,LAContext對(duì)象被釋)- (void)WJTouchIDAuthorizeErrorInvalidContext; //設(shè)備沒(méi)有錄入TouchID,無(wú)法啟用TouchID- (void)WJTouchIDAuthorizeErrorTouchIDNotEnrolled; //該設(shè)備的TouchID無(wú)效- (void)WJTouchIDAuthorizeErrorTouchIDNotAvailable;