Finally, folks! One of the developers of Minecraft: Pocket Edition, specifically Daniel Wustenhoff, shared a GIF on his Twitter page showcasing how the sticky piston operates.
The animation illustrates the functioning of the piston, which is connected by redstone to a pressure plate. A block of dirt was placed on the pressure plate, activating the redstone signal and consequently triggering the sticky piston.
I believe many of you have been eagerly anticipating the introduction of pistons in MCPE. Discussions about them began back in version 0.12.0. There were claims they would be included in 0.13.0, but ultimately nothing materialized. They were also promised for 0.14.0, yet again we were left disappointed. However, this time around, sticky pistons will definitely be present in 0.15.0, so rest assured!