oc手势解锁demo

你可以参考以下步骤实现OC手势解锁demo：

1. 创建一个手势解锁的视图，可以使用`UIView`或`UIScrollView`等。

2. 在手势解锁视图中添加手势识别器，可以使用`UIPanGestureRecognizer`。

3. 在手势识别器回调函数中，记录手指的移动轨迹，可以使用`CGPoint`类型的数组。

4. 根据手指移动轨迹，在手势解锁视图上绘制手势轨迹，可以使用`UIBezierPath`绘制。

5. 根据手势轨迹判断手势是否正确，可以使用事先定义好的手势密码进行比对。

6. 根据比对结果，显示相应的提示信息。

以下是一个简单的OC手势解锁demo示例代码：

// 创建手势解锁视图
UIView *gestureView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 300, 300)];
gestureView.center = self.view.center;
gestureView.backgroundColor = [UIColor lightGrayColor];
[self.view addSubview:gestureView];

// 添加手势识别器
UIPanGestureRecognizer *gestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handleGesture:)];
[gestureView addGestureRecognizer:gestureRecognizer];

// 定义手势密码
NSArray *password = @[@(1), @(2), @(3), @(6), @(9)];

// 记录手指移动轨迹
NSMutableArray *path = [NSMutableArray array];

// 绘制手势轨迹
- (void)drawPath:(NSArray *)path {
    UIBezierPath *bezierPath = [UIBezierPath bezierPath];
    for (int i = 0; i < path.count; i++) {
        CGPoint point = [path[i] CGPointValue];
        if (i == 0) {
            [bezierPath moveToPoint:point];
        } else {
            [bezierPath addLineToPoint:point];
        }
    }
    CAShapeLayer *shapeLayer = [CAShapeLayer layer];
    shapeLayer.path = bezierPath.CGPath;
    shapeLayer.strokeColor = [UIColor redColor].CGColor;
    shapeLayer.fillColor = [UIColor clearColor].CGColor;
    [self.view.layer addSublayer:shapeLayer];
}

// 判断手势是否正确
- (BOOL)checkPassword:(NSArray *)path {
    if (path.count != password.count) {
        return NO;
    }
    for (int i = 0; i < path.count; i++) {
        if ([path[i] integerValue] != [password[i] integerValue]) {
            return NO;
        }
    }
    return YES;
}

// 手势识别器回调函数
- (void)handleGesture:(UIPanGestureRecognizer *)gestureRecognizer {
    CGPoint location = [gestureRecognizer locationInView:gestureView];
    if (gestureRecognizer.state == UIGestureRecognizerStateBegan) {
        [path removeAllObjects];
        [path addObject:[NSValue valueWithCGPoint:location]];
    } else if (gestureRecognizer.state == UIGestureRecognizerStateChanged) {
        [path addObject:[NSValue valueWithCGPoint:location]];
        [self drawPath:path];
    } else if (gestureRecognizer.state == UIGestureRecognizerStateEnded) {
        if ([self checkPassword:path]) {
            NSLog(@"密码正确");
        } else {
            NSLog(@"密码错误");
        }
    }
}