指纹解锁

来源：互联网发布：flash 9插件 for mac 编辑：程序博客网时间：2024/04/28 03:17

1.包头文件

LocalAuthentication/LocalAuthentication.h

2.协议方法

//判断设备是否支持TouchID的

- (BOOL)canEvaluatePolicy:(LAPolicy)policy error:(NSError * __autoreleasing *)

error __attribute__

((swift_error(none)));

//验证TouchID的，并有弹出框

- (void)evaluatePolicy:(LAPolicy)policy
       localizedReason:(NSString *)localizedReason
                 reply:(void(^)(BOOL success, NSError * __nullable error))reply;

3.属性

//设置右边边的按钮的名称，默认是Enter Password.

localizedFallbackTitle

//设置提示语

localizedReason

//指纹输入失败之后的弹出框的选项

LAContext *context = [LAContext new];

context.localizedFallbackTitle = @"没有忘记密码"

`4.回调`

NSError *error = nil;
    if ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics 
    error:&error]) {
        NSLog(@"支持指纹识别");
        [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);
    }

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