Question

我有一个应用程序，要求用户提供信息，然后签名。单击“符号”按钮后，它们将被带到名为“myviewcontroller”的视图控制器。

从那里我想要显示的是以下屏幕，但是每当我点击“签名”按钮时，签名捕获将占据整个屏幕，当它工作时，我无法看到他们应该签名的“x”。

我不知道我错过了什么，或者我错误地称之为导致这种情况发生的原因。

#import "MyViewController.h"

@interface MyViewController ()

@end

@implementation MyViewController

@synthesize mySignatureImage;
@synthesize lastContactPoint1, lastContactPoint2, currentPoint;
@synthesize imageFrame;
@synthesize fingerMoved;
@synthesize navbarHeight;


- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    //set the title of the navigation view
    [self.navigationItem setTitle:@"Sign here"];

    //create a save button in the navigation bar
    UIBarButtonItem *myButton = [[UIBarButtonItem alloc]
                                 initWithTitle:@"Save"
                                 style:UIBarButtonItemStylePlain
                                 target:self
                                 action:@selector(saveSignature:)];
    [self.navigationItem setRightBarButtonItem:myButton];
    //set the view background to light gray
    self.view.backgroundColor = [UIColor lightGrayColor];

    //get reference to the navigation frame to calculate navigation bar height
    CGRect navigationframe = [[self.navigationController navigationBar] frame];
    navbarHeight = navigationframe.size.height;

    //create a frame for our signature capture based on whats remaining
    imageFrame = CGRectMake(self.view.frame.origin.x+10,
                            self.view.frame.origin.y-5,
                            self.view.frame.size.width-20,
                            self.view.frame.size.height-navbarHeight-30);

    //allocate an image view and add to the main view
    mySignatureImage = [[UIImageView alloc] initWithImage:nil];
    mySignatureImage.frame = imageFrame;
    mySignatureImage.backgroundColor = [UIColor whiteColor];
    [self.view addSubview:mySignatureImage];


}

实际签名捕获的代码更多，但这是与视图控制器直接相关的内容。

http://i59.tinypic.com/f06ph2.jpg http://i61.tinypic.com/29cqy8.jpg

显示签名捕获图像

0 个答案: