在运行时使用UIGestureRecognizer创建UIImage

Question

我希望能够添加一个特定大小的新UIImageView,它应该有一些UIGestureRecognizers检测UIImageView上的触摸.

一个子类UIImageView如何才能最好地实现？

我希望用户能够在运行时根据需要添加UIImageViews,然后gestureRecognizer将允许他们操作视图.

谢谢

Answer 1

我想你只是忘了启用userInteractions.

UIImageView *imageView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"foo.png"]] autorelease];
imageView.userInteractionEnabled = YES;
UITapGestureRecognizer *tapGesture = [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction:)] autorelease];
[imageView addGestureRecognizer:tapGesture];
[self.view addSubview:imageView];