iPhone签名捕获

是否可以通过电缆（USB）连接将签名从iPhone传输到.xls文件？

因此，这可能不是您想要的，但这就是我捕获用户（用手指/触笔）绘制的签名的方式。您的UIImageView将具有绘制的签名。我没有想过如何将签名图像传输到.xls，但您可以将图像保存到设备的照片库中，然后像导出任何其他图像一样将其导出，然后将其放入.xls（我知道，这是一个手动过程）。我希望这有帮助

签名EWController.h

IBOutlet UIImageView *signatureImageView;

//Signature Drawing Items
CGPoint lastPoint;
BOOL mouseSwiped;   
int mouseMoved;

SignatureCaptureViewController.m

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {      
    mouseSwiped = NO;
    UITouch *touch = [touches anyObject];

    //Clear Signature on Double Tap
    if ([touch tapCount] == 2) {
        signatureImageView.image = nil;
        return;
    }

    lastPoint = [touch locationInView:signatureImageView];

}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
    mouseSwiped = YES;

    UITouch *touch = [touches anyObject];   

    CGPoint currentPoint = [touch locationInView:signatureImageView];

    UIGraphicsBeginImageContext(signatureImageView.frame.size);
    [signatureImageView.image drawInRect:CGRectMake(0, 0, signatureImageView.frame.size.width, signatureImageView.frame.size.height)];
    CGContextSetLineCap(UIGraphicsGetCurrentContext(), kCGLineCapRound);
    CGContextSetLineWidth(UIGraphicsGetCurrentContext(), 2.0);
    CGContextSetRGBStrokeColor(UIGraphicsGetCurrentContext(), 0.0, 0.0, 0.0, 1.0);
    CGContextBeginPath(UIGraphicsGetCurrentContext());
    CGContextMoveToPoint(UIGraphicsGetCurrentContext(), lastPoint.x, lastPoint.y);
    CGContextAddLineToPoint(UIGraphicsGetCurrentContext(), currentPoint.x, currentPoint.y);
    CGContextStrokePath(UIGraphicsGetCurrentContext());

    signatureImageView.image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    lastPoint = currentPoint;
}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *touch = [touches anyObject];

    //Clear Signature on Double Tap
    if ([touch tapCount] == 2) {
        signatureImageView.image = nil;
        return;
    }

    if(!mouseSwiped) {
        UIGraphicsBeginImageContext(signatureImageView.frame.size);
        [signatureImageView.image drawInRect:CGRectMake(0, 0, signatureImageView.frame.size.width, signatureImageView.frame.size.height)];
        CGContextSetLineCap(UIGraphicsGetCurrentContext(), kCGLineCapRound);
        CGContextSetLineWidth(UIGraphicsGetCurrentContext(), 2.0);
        CGContextSetRGBStrokeColor(UIGraphicsGetCurrentContext(), 0.0, 0.0, 0.0, 0.0);
        CGContextMoveToPoint(UIGraphicsGetCurrentContext(), lastPoint.x, lastPoint.y);
        CGContextAddLineToPoint(UIGraphicsGetCurrentContext(), lastPoint.x, lastPoint.y);
        CGContextStrokePath(UIGraphicsGetCurrentContext());
        CGContextFlush(UIGraphicsGetCurrentContext());
        signatureImageView.image = UIGraphicsGetImageFromCurrentImageContext();
        UIGraphicsEndImageContext();
    }
}

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来自应用程序（如autogragh）的签名。e、 g.客户签收货物。您是在寻找捕获签名的方法，还是只想通过标准附件端口/USB将其从应用程序导出到Excel？这两种方法都是真的，因为我只能找到通过网络（无线）传输签名的应用程序，我想把这个信号导入笔记本电脑的xls文件中，这看起来很棒。我很想看到完整的.h，以及更多关于如何通过interface builder实际集成的内容。