gesture_zoom_box 0.0.4

A widget for gesture zoom.

[0.0.4] - 2022/04.24.

• Port to Flutter 2 for null safety.
• Occasionally fails to trigger zoom.
• Boundary error after zooming in long image.

[0.0.3] - 2020.08.07.

• Fix bug: Multi-finger sliding abnormal.

[0.0.2] - 2019.09.18.

• Add bounce effects for zooming.
• Add a duration parameter for animation.
• Add bounce effects for panning.
• Add fling effects for panning.

[0.0.1] - 2019.09.16.

• Scale/Pan
• Double tap scale
• Max scale
• Pressed callback