Question

我正在使用UITapGestureRecognizer

这是我的代码：

Home.m：

- (void)viewDidLoad {
    [super viewDidLoad];
    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAnim:)];
    [self.view addGestureRecognizer:tapGesture];

    UIButton *buttontest = [[UIButton alloc] init];
    buttontest.backgroundColor = [UIColor whiteColor];
    buttontest.frame = CGRectMake(0, 80, 40, 40);
    [buttontest addTarget:self action:@selector(test:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:buttontest];
    [self.view bringSubviewToFront:buttontest];
}
- (void)test: (UIButton*)aButton {
//    TakePhoto *mvc = [[TakePhoto alloc]initWithNibName:@"TakePhoto" bundle:Nil];
//    [self.navigationController pushViewController:mvc animated:YES];
//    
//    [self.view removeFromSuperview];

    if (self.companyController) {
        self.companyController = nil;
    }
    self.companyController = [[TakePhoto alloc] initWithNibName:@"TakePhoto" bundle:nil];
    UIView *viewSuper = [[IQAppDelegate shareInstance] currentVisibleController].view;
    UIViewController *profile = self.companyController;

    profile.view.frame = viewSuper.frame;
    [viewSuper addSubview:profile.view];
    profile.view.frame = CGRectMake(viewSuper.frame.origin.x, viewSuper.frame.size.height, profile.view.frame.size.width, profile.view.frame.size.height);
    [UIView  beginAnimations:nil context: nil];
    [UIView setAnimationDuration:0.35];

    profile.view.frame = CGRectMake(viewSuper.frame.origin.x, viewSuper.frame.origin.x, profile.view.frame.size.width, profile.view.frame.size.height);

    [UIView commitAnimations];
}

}
- (void) tapAnim: (UITapGestureRecognizer*)gestureRecognizer {
// Show something
}

TakePhoto.m

UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    picker.delegate = self;
    picker.allowsEditing = NO;
    [(UIViewController *)self.delegate presentModalViewController:picker animated:YES];

我添加了一个视图：Takephoto Front of Home（我不是用“推”），像这样：

---＆GT;首页

---＆gt;拍照（如popUp节目）：它有2个按钮“从库中选择照片”和“关闭”

当我使用“从图库中选择照片”功能时，我无法选择照片，UITapGestureRecognizer始终显示。

如何从图库中选择照片时停用UITapGestureRecognizer？

P / S：抱歉我的英语。

Answer 1

手势识别器具有enabled属性。将其设置为NO以禁用手势识别器。为了使这更容易，您应该使用实例变量保持对轻击手势识别器的引用。

Answer 2

您可以在选择照片之前设置tapGesture.enabled=NO。

Answer 3

我认为你需要在下面的委托方法中实现： -

- (BOOL)gestureRecognizer:
 (UIGestureRecognizer *)gestureRecognizer 
 shouldReceiveTouch:(UITouch *)touch

当您查看文档时，它将返回YES（默认情况下）以允许手势识别器检查触摸对象，NO以防止手势识别器看到此触摸对象。有关详细信息，请参阅此https://developer.apple.com/library/ios/DOCUMENTATION/UIKit/Reference/UIGestureRecognizerDelegate_Protocol/Reference/Reference.html#//apple_ref/occ/intfm/UIGestureRecognizerDelegate/gestureRecognizer:shouldReceiveTouch：

如何从库中选择照片时禁用UITapGestureRecognizer？

3 个答案: