cameraOverlayView上的按钮不工作

Question

我有下面的cameraOverlayView在一定程度上起作用。当调用UIImagePickerController时，标准控件将不显示，'Take Photo'按钮和logo.jpg将显示为在中描述的按钮在按下时会变蓝，但我的问题是它不调用操作( NSLog只是为了测试目的)。有人能看到我做错了什么吗？

@implementation ObViewControllerCameraOverlay

- (id)initWithFrame:(CGRect)frame {
if (self = [super initWithFrame:frame])
{
    UIImage *logo = [UIImage imageNamed:@"logo.jpg"];
    UIImageView *logoView = [[UIImageView alloc] initWithImage:logo];
    logoView.frame = CGRectMake(0, 0, 240, 50);
    [self addSubview:logoView];

    UIButton *takePhotoButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [takePhotoButton setTitle:@"Take photo" forState:UIControlStateNormal];
    takePhotoButton.frame = CGRectMake(0, 330, 320, 40);
    [self addSubview:takePhotoButton];
}
return self;
}

- (IBAction)takePhotoButton:(id)sender
{
NSLog(@"test");
}

Answer 1

它看起来不像你告诉你的按钮，打电话给takePhotoButton:时，它被点击。试着添加

[takePhotoButton addTarget:self action:@selector(takePhotoButton:) forControlEvents:UIControlEventTouchUpInside];

在initWithFrame:中创建按钮之后