Animation effect generation method and apparatus, and medium and device

An animation effect generation apparatus, comprising:

• a first determination module, configured to, in response to determining that an inertial movement of a target element after an end event of a two-dimensional touch movement involves a region outside a first elastic boundary of a display interface, determine collision information for occurrence of a collision rebound according to the first elastic boundary, a motion state of the target element when the end event occurs, and an assumed end-point position, wherein the assumed end-point position is a stop position of the target element only moving inertially based on the motion state;
• and
• a first generation module, configured to, according to a preset target easing function and the collision information, generate a first animation from the motion state to the occurrence of the collision rebound, and a second animation from the occurrence of the collision rebound to a case where a first boundary of the target element is aligned with the first elastic boundary.

An electronic device, comprising a memory and a processor, wherein the memory stores executable code, and the processor, when executing the executable code, implements an animation effect generation method, and the animation effect generation method comprises:

• in response to determining that an inertial movement of a target element after an end event of a two-dimensional touch movement involves a region outside a first elastic boundary of a display interface, determining collision information for occurrence of a collision rebound according to the first elastic boundary, a motion state of the target element when the end event occurs, and an assumed end-point position, wherein the assumed end-point position is a stop position of the target element only moving inertially based on the motion state;
• and
• according to a preset target easing function and the collision information, generating a first animation from the motion state to the occurrence of the collision rebound, and a second animation from the occurrence of the collision rebound to a case where a first boundary of the target element is aligned with the first elastic boundary.