Question

我正在开发一个应用程序，用户可以在捕获的图片上添加帽子，头发等图标。为此我在屏幕上有一个图像视图来保存捕获的图像，在这下面我有一个滚动视图来显示各种图标该用户可以申请。当我点击滚动视图内的任何图标时，我需要将此图标移动到中心捕获的图片，但是当我尝试使用代码时，这会将图像设置为滚动视图的中心而不是整个视图。但是，当我删除滚动视图并将图像放在图像视图外时，这是有效的。请建议。

//在视图中加载

//*************************************adding gusture******************************
    //SINGLETAP
    UITapGestureRecognizer *singleTapGestureRecognizer_For_image15 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTapAction_For_Image_15:)];
    singleTapGestureRecognizer_For_image15.numberOfTapsRequired = 1;
    [self.image_15 addGestureRecognizer:singleTapGestureRecognizer_For_image15];
    //DOUBLE TAP
    UITapGestureRecognizer *doubleTapGestureRecognizer_For_image15 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleDoubleTapAction_For_Image_15:)];
    doubleTapGestureRecognizer_For_image15.numberOfTapsRequired = 2;
    [self.image_15 addGestureRecognizer:doubleTapGestureRecognizer_For_image15];
    //End Image 15








//***********************************Handling Tap
//SIngle TAP

-(void)handleSingleTapAction_For_Image_15:(UITapGestureRecognizer *)handleSingleTapAction_For_Image_15{
    CGSize newSize = CGSizeMake(250.0, 250.0);
    CGPoint currentCenter = self.view.center;
    self.image_15.frame = CGRectMake(self.image_15.frame.origin.x, self.image_15.frame.origin.y, newSize.width, newSize.height);
    self.image_15.center = currentCenter;
}

//Double Tap
-(void)handleDoubleTapAction_For_Image_15:(UITapGestureRecognizer *)doubleTapGestureRecognizer_For_image15
{
    CGSize newSize = CGSizeMake(40.0, 40.0);
    CGPoint currentCenter = self.view.center;
    self.image_15.frame = CGRectMake(self.image_15.frame.origin.x, self.image_15.frame.origin.y, newSize.width, newSize.height);
    self.image_15.center = currentCenter;
}

Answer 1

您正在设置self.view中心的图像中心，但我认为您还必须处理从原点偏移的scrollview框架。因此，您的image_15中心应设置为

self.image_15.center = CGPointMake(currentCenter.x-yourScrollView.frame.origin.x, currentCenter.y-yourScrollView.frame.origin.y);
（提供的scrollview也是self.view）

的直接子视图

如果您向我提供有关您的视图层次结构的详细信息，我可以优化我的答案。

点击手势不起作用

1 个答案: