Sending the button label to a another tile

Developer Programs Writing Device Types
#1

Hi all,

I am trying to create a virtual remote control with several button capabilities that change colors for the hue lights.
I am trying to set one of the tile to display the last button pressed (current selected color) so the value of the attribute should change when a button is pressed.
Unfortunately, I am stuck at sending the button’s label to that variable.
Maybe I didn’t explain correctly, but hopefully the code will be more easy to understand:

metadata {
definition (name: “Philips Hue Theme Selector”, namespace: “Custom Device Handlers”, author: “SmartThings”) {
capability "Actuator"
capability "Button"
capability "Configuration"
capability “Sensor”

    attribute "value","string"
    
    command "blue_theme"
    command "red_theme"
    command "purple_theme"
    command "Unassigned"
    command "Unassigned"
    command "Unassigned"
    command "Unassigned"
    command "Unassigned"
}

simulator {
	status "button 1 pushed":  "command: 2001, payload: 01"
    status "button 2 pushed":  "command: 2001, payload: 29"
    status "button 3 pushed":  "command: 2001, payload: 51"
    status "button 4 pushed":  "command: 2001, payload: 79"
	status "button 1 held":  "command: 2001, payload: 15"
	status "button 2 held":  "command: 2001, payload: 3D"
	status "button 3 held":  "command: 2001, payload: 65"
	status "button 4 held":  "command: 2001, payload: 8D"
	status "wakeup":  "command: 8407, payload: "
}
tiles {
	standardTile("button", "device.button") {
		state "default", label: "", icon: "st.unknown.zwave.remote-controller", backgroundColor: "#ffffff"
	}
    valueTile("current_theme", "device.value", width: 3, height: 1) {
    	state "default", label: '${currentValue}', backgroundColor: "#1E90FF"
	} 
	standardTile("blue_theme", "device.button", width: 1, height: 1, decoration: "flat") {
		state "default", label: "Blue", backgroundColor: "#1E90FF", action: "blue_theme"
	} 
	standardTile("red_theme", "device.button", width: 1, height: 1, decoration: "flat") {
		state "default", label: "Red", backgroundColor: "#DC143C", action: "red_theme"
	} 
	standardTile("purple_theme", "device.button", width: 1, height: 1, decoration: "flat") {
		state "default", label: "Purple", backgroundColor: "#9932CC", action: "purple_theme"
	} 
	standardTile("push4", "device.button", width: 1, height: 1, decoration: "flat") {
		state "default", label: "Push 4", backgroundColor: "#ffffff", action: "push4"
	} 
	standardTile("dummy1", "device.button", width: 1, height: 1, decoration: "flat") {
		state "default", label: " ", backgroundColor: "#ffffff", action: "push4"
	}         
	standardTile("hold1", "device.button", width: 1, height: 1, decoration: "flat") {
		state "default", label: "Hold 1", backgroundColor: "#ffffff", action: "hold1"
	}          
	standardTile("hold2", "device.button", width: 1, height: 1, decoration: "flat") {
		state "default", label: "Hold 2", backgroundColor: "#ffffff", action: "hold2"
	}          
	standardTile("dummy2", "device.button", width: 1, height: 1, decoration: "flat") {
		state "default", label: " ", backgroundColor: "#ffffff", action: "push4"
	}         
	standardTile("3", "device.button", width: 1, height: 1, decoration: "flat") {
		state "default", label: "Hold 3", backgroundColor: "#ffffff", action: "hold3"
	}          
	standardTile("hold4", "device.button", width: 1, height: 1, decoration: "flat") {
		state "default", label: "Hold 4", backgroundColor: "#ffffff", action: "hold4"
	}          
    
	main "button"
	details(["current_theme","blue_theme","red_theme","purple_theme","button","push4","dummy1","hold1","hold2","dummy2","hold3","hold4"])
}

}

def parse(String description) {

}

def blue_theme() {
push(1)
}

def red_theme() {
push(2)
}

def purple_theme() {
push(3)
}

def push4() {
push(4)
}

def push5() {
push(5)
}

def push6() {
push(6)
}

def push7() {
push(7)
}

def push8() {
push(8)
}

private push(button) {
log.debug "$device.displayName button $button was pushed"
sendEvent(name: “button”, value: “pushed”, data: [buttonNumber: button], descriptionText: “$device.displayName button $button was pushed”, isStateChange: true)
sendEvent(name: “value”, “value”:“device.button”)
}

private hold(button) {
log.debug "$device.displayName button $button was held"
sendEvent(name: “button”, value: “held”, data: [buttonNumber: button], descriptionText: “$device.displayName button $button was held”, isStateChange: true)
}