平移和 2 指捏合同步 iOS -同时 -
2 手势识别器：
UIPinchGestureRecognizer *twoFingerPinch =
[[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(handlePinch:)];
[croppper addGestureRecognizer:twoFingerPinch];
UIPanGestureRecognizer *PanRecognizer = [[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)] autorelease];
[croppper addGestureRecognizer:PanRecognizer];
并且：
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
return YES;
}
但是同时捏合和平移不起作用...... 通常我可以捏，因为平底锅识别器已打开。
问候
2 Gesture recognizer:
UIPinchGestureRecognizer *twoFingerPinch =
[[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(handlePinch:)];
[croppper addGestureRecognizer:twoFingerPinch];
UIPanGestureRecognizer *PanRecognizer = [[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)] autorelease];
[croppper addGestureRecognizer:PanRecognizer];
and:
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
return YES;
}
But pinch and pan at the same time is not working...
often i can pinch because the pan recognizer is on.
regards
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您似乎没有为每个手势识别器设置委托。
gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer:是一个委托方法，因此如果手势识别器没有委托，则不会调用此方法。因此，默认返回值为
NO，因此手势不会同时被识别。It doesn't look like you're setting the delegate for each gesture recognizer.
gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer:is a delegate method, and so if the gesture recognizer has no delegate, this method won't be invoked.As a result, the default return value will be
NO, and so the gestures won't be recognised simultaneously.您是否将自己设置为识别者代表？
PS 我还尝试为您的变量获得更一致的命名方案！
Are you setting yourself as the recognisers delegate?
PS I'd also try to get a more consistent naming scheme for your variables!