vormTouchListener

vormTouchListener is an interface in Android development that defines a set of callback methods for receiving notifications about touchscreen events. It is part of the `android.view` package. This listener is specifically designed to handle gestures that involve multiple touch points, such as pinch-to-zoom or two-finger rotation.

The core method of the vormTouchListener interface is onFormTouchEvent(MotionEvent event). This method is invoked whenever a touch event occurs on the view associated with the listener. The MotionEvent object passed to this method contains detailed information about the touch event, including the action being performed (e.g., down, move, up), the coordinates of the touch points, and the time of the event.

Developers implement the vormTouchListener interface and attach an instance of their implementation to a View using the setOnFormTouchListener() method. By analyzing the sequence and properties of MotionEvent objects received in onFormTouchEvent(), developers can detect and respond to complex multi-touch gestures. This is crucial for creating interactive user interfaces that support advanced touch interactions. Common use cases include image manipulation, map zooming, and custom gesture recognition.