Added scale-to-zoom gesture support to the Gallery grid demo #6185
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abarth
approved these changes
Oct 3, 2016
| _focalPoint = _flingAnimation.value; | ||
| _lastFocalPoint = _focalPoint; | ||
| }); | ||
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| /// Signature for when the pointers are no longer in contact with the screen. | ||
| typedef void GestureScaleEndCallback(); | ||
| typedef void GestureScaleEndCallback(Velocity flingVelocity); |
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I wonder if these should take details objects. That's the pattern we've adopted for the other gestures.
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I agree. I can take a stab at that in a separate PR.
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Added basic support for the scale input gesture to the Gallery grid demo.
Added a flingVelocity parameter to the scaleEnd() callback.