xcode4.3 - 如何在xcode中使用一根手指同时缩放和旋转文本？

Question

我的文本字段有问题，我可以使用手势旋转和缩放它，但我想同时进行单指旋转和缩放。请帮助我。我真的非常需要这个。

Answer 1

我能想到的最接近的方法不是使用手指，而是使用滑块。考虑：

scale = scaleSlider.value;
currentAngle = rotationSlider.value;

//Create a transformation with just the rotation
CGAffineTransform transform = CGAffineTransformMakeRotation(currentAngle);

//Now apply our scale
transform = CGAffineTransformScale(transform, scale, scale);

//Now set the transform on the object to the combined rotation/scale transform.
[tmp setTransform: transform];

Answer 2

要同时启用多个手势识别器，您应该添加此方法并返回 yes，我在我的项目中对其进行了测试：

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
return YES;
}