Question

MotionEvent doesn’t get a constructor, I wanted to manually create a MotionEvent in my unit test, then how to get that? Thanks.

Answer 1

You should use one of the static obtain methods of the MotionEvent class to create a new event.

The simplest way (besides wrapping a new event from an existing one) is:

static public MotionEvent obtain(long downTime, long eventTime, int action,
        float x, float y, int metaState) {

API Docs:

Create a new MotionEvent, filling in a
subset of the basic motion values.
Those not specified here are: device
id (always 0), pressure and size
(always 1), x and y precision (always
1), and edgeFlags (always 0).

Parameters:

• downTime The time (in ms) when the
  user originally pressed down to start
  a stream of position events. This
  must be obtained from
  SystemClock.uptimeMillis().
• eventTime The the time (in ms) when
  this specific event was generated.
  This must be obtained from
  SystemClock.uptimeMillis().
• action The kind of action being
  performed — one of either
  ACTION_DOWN, ACTION_MOVE,
  ACTION_UP, or ACTION_CANCEL.
• x The X coordinate of this event.
• y The Y coordinate of this event.
• metaState The state of any meta /
  modifier keys that were in effect
  when the event was generated.

Link to API Docs