I am an Android developer. During development, I wondered if there was a listener on the soft keyboard. Is there something like a listener or observer that can detect when the keyboard goes up and down?
In addition, if you look at the bottom of the mobile with the keyboard raised, the navigation button has a [keyboard down button] except for the [home button] and [multi-task button]. Can you put your code in the setOnClickListener for this [keyboard down button]? For example, when the keyboard down button is pressed, the Toast is displayed.
According to the accepted answer here, "You can use a layout listener to see if the root layout of your activity is resized by the keyboard.": Soft keyboard open and close listener in an activity in Android