本文介绍了UIImageView 上的 UIGestureRecognizer的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个 UIImageView，我希望它能够调整大小和旋转等.
I have a UIImageView, which I want to be able to resize and rotate etc.
UIGestureRecognizer可以添加到UIImageView吗?
我想在运行时创建的 UIImageView 中添加旋转和捏合识别器.
I would want to add a rotate and pinch recognizer to a UIImageView which would be created at runtime.
如何添加这些识别器?
推荐答案
检查 UIImageView 上的 userInteractionEnabled 是否为 YES.然后你可以添加一个手势识别器.
Check that userInteractionEnabled is YES on the UIImageView. Then you can add a gesture recognizer.
imageView.userInteractionEnabled = YES;
UIPinchGestureRecognizer *pgr = [[UIPinchGestureRecognizer alloc]
initWithTarget:self action:@selector(handlePinch:)];
pgr.delegate = self;
[imageView addGestureRecognizer:pgr];
[pgr release];
:
:
- (void)handlePinch:(UIPinchGestureRecognizer *)pinchGestureRecognizer
{
//handle pinch...
}
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