GroupChat.kv

<Button>
	background_normal: ''
	background_color: (0,80/255,64/255,1)
	color:(252/255,1,254/255,1)

<MyFloatLayout>:
	message:message
	spacing: 5
	BoxLayout:
		size: root.width, root.height
		cols:1
		orientation: "vertical"
		Label:
			id:header_label
			text: "You have joined the group chat"
			size_hint_y:0.1
			halign:"center"
			valign:"top"
			color: (17/255,252/255,205/255,1)
		Label:
			id: ChatPage
			text: ""
			height: self.texture_size[1]
			text_size: self.width, None
			halign:"left"
			valign:"top"
			color: (55/255,193/255,163/255,1)

		BoxLayout:
			cols:3
			spacing: 5
			TextInput:
				id:message
				multiline: False
				size_hint: (0.7,0.2)
				background_normal: ''
				background_color: (234/255,237/255,236/255,1)

			Button:
				text: "Attach\n  File"
				size_hint: (0.1,0.2)
				on_press: root.file_send()

			Button:
				text: "Send"
				size_hint: (0.2,0.2)
				on_press:root.message_send()

<FileSelectLayout>:
	id: FileSelector
	BoxLayout:
		cols: 1
		orientation: "vertical"
		size: root.width, root.height
		BoxLayout:
			cols:1
			size_hint_y:0.8
			FileChooserIconView:
				id: FileChooser
				path: root.defaultPath
				on_selection: FileSelector.selected(FileChooser.selection)
		BoxLayout:
			cols:2
			size_hint_y:0.2
			Button:
				text: "Select"
				on_press:root.select_event()
			Button:
				text: "Cancel"
				on_press:root.cancel_event()