TouchID

 

touch id

iPhone的指纹解锁实际很简单的,但是需要8.0以后使用,苹果都给封装好了,在测试下面代码前,记得设置TouchID,下面上代码吧。

-(void)testTouchId {     NSERROR *error = nil;     if ([self.context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {         NSLog(@"支持指纹识别");         [self.context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:@"指纹解锁" reply:^(BOOL success, NSError * _Nullable error) {             if (success) {                 NSLog(@"验证成功 刷新主界面");             }else{                 NSLog(@"%@",error.localizedDescription);                 switch (error.code) {                     case LAErrorSystemCancel:                     {                         NSLog(@"系统取消授权,如其他APP切入");                         break;                     }                     case LAErrorUserCancel:                     {                         NSLog(@"用户取消验证touch id"); break;                     }                     case LAErrorAuthenticationFailed:                     {                         NSLog(@"授权失败"); break;                     }                     case LAErrorPasscodeNotSet:                     {                         NSLog(@"系统未设置密码"); break;                     }                     case LAErrorTouchIDNotAvailable:                     {                         NSLog(@"设备Touch ID不可用,例如未打开");                         break;                     }                     case LAErrorTouchIDNotEnrolled:                     {                         NSLog(@"设备Touch ID不可用,用户未录入");                         break;                     }                     case LAErrorUserFallback: {                         [[NSOperationqueue mainQueue] addOperationWithBlock:^{ NSLog(@"用户选择输入密码,切换主线程处理"); }];                         break;                     }                     default:                     {                         [[NSOperationQueue mainQueue] addOperationWithBlock:^{ NSLog(@"其他情况,切换主线程处理"); }];                         break;                     }                 }             }         }];     }else{         NSLog(@"不支持指纹识别");         switch (error.code)         {             case LAErrorTouchIDNotEnrolled:             {                 NSLog(@"TouchID is not enrolled");                 break;             }             case LAErrorPasscodeNotSet:             {                 NSLog(@"A passcode has not been set");                 break;             }             default: {                 NSLog(@"TouchID not available");                 break;               }         }         NSLog(@"%@",error.localizedDescription); } } -(LAContext *)context {     if (!_context) {         _context = [LAContext new];         _context.localizedCanceltitle = @"取消";     }     return _context; }

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