密码锁功能

判断是否开着密码锁

NSString *touch =   [[NSUserDefaults standardUserDefaults]objectForKey:@"ISTouch"];
        if ([touch isEqualToString:@"ON"]) {
            ViewController *VC = [[ViewController alloc]init];
            
            QMUINavigationController *nav = [[QMUINavigationController alloc]initWithRootViewController:VC];
            
            self.window.rootViewController = nav;
            self.window.backgroundColor = [UIColor whiteColor];
            [self.window makeKeyAndVisible];
        }else{
            
            HomeViewController *VC = [[HomeViewController alloc]init];
            
            QMUINavigationController *nav = [[QMUINavigationController alloc]initWithRootViewController:VC];
            
            self.window.rootViewController = nav;
            self.window.backgroundColor = [UIColor whiteColor];
            [self.window makeKeyAndVisible];
        }
    

``

• (void)clicktouch{
  LAContext* context = [[LAContext alloc] init];
  //这个设置的使用密码的字体，当text=@""时，按钮将被隐藏
  context.localizedFallbackTitle= @"输入密码解锁";

  //这个设置的取消按钮的内容
  if (@available(iOS 10.0, )) {
  context.localizedCancelTitle = @"取消";
  } else {
  // Fallback on earlier versions
  }
  //错误对象
  NSError error = nil;
  NSString* result = @"需要验证您的touch ID";
  //首先使用canEvaluatePolicy 判断设备支持状态
  if ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics
  error:&error]) {
  NSLog(@"支持指纹识别");
  [context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics
  localizedReason:result reply:^(BOOL success, NSError * _Nullable error) {
  if (success) {
  NSLog(@"验证成功 刷新主界面");
  // [SVProgressHUD showSuccessWithStatus:@"验证成功"];
  // [SVProgressHUD dismissWithDelay:1.5];
  // 主线程跳转 一定要在主线程 因为这个环节很慢
  dispatch_async(dispatch_get_main_queue(), ^{

                        [self pushtoHome];
                    });
                
                    
                }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");
                            [self clickPwd];
                        }];
                        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);
  

  }
  }