If standard actions are immediate to enable and use (binding them to TAction instances), different behavior is often expected by the user. Instead of waiting for the full gesture to be completed (and recognized), some touch-driven features imply the execution of some code during the life of the gesture itself.
Typical examples are the following:
- Zoom: This gesture is about two fingers getting closer to or further from each other, in a pinch movement.
- Pan: This gesture is about a single finger sliding on the touch screen (not necessarily in a straight direction).
- Rotate: This gesture is about two fingers mimicking the act of rotating an object.
- Long tap: This gesture is about pressing and keeping a single finger on the touch screen.
Other variations include the double tap, press, and tap. You can check the InteractiveGesture property of the Touch node of the form for a complete list.
For instance, you may want to implement a way for the...
