scene and function
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atseirjo
157
scenen/scene01.lua
Normal file
157
scenen/scene01.lua
Normal file
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-----------------------------------------------------------------------------------------
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--
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-- scene01.lua
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-- Datenansicht Scene
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--
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-----------------------------------------------------------------------------------------
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local composer = require("composer")
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local json = require("json")
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local scene = composer.newScene()
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-- -----------------------------------------------------------------------------------
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-- Scene event functions
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-- -----------------------------------------------------------------------------------
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-- create()
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function scene:create(event)
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local sceneGroup = self.view
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-- Kein Hintergrund, keine UI-Elemente
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end
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-- show()
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function scene:show(event)
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local sceneGroup = self.view
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local phase = event.phase
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if phase == "will" then
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-- Code hier wird ausgeführt, wenn die Scene noch off-screen ist (aber im Begriff ist, on-screen zu kommen)
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elseif phase == "did" then
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-- Code hier wird ausgeführt, wenn die Scene komplett on-screen ist
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-- Hole die übergebenen Daten
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local deviceDataSets = event.params.deviceDataSets
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local devices = event.params.devices
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if deviceDataSets and devices then
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-- Berechne Layout
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local itemHeight = 90
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local cardWidth = display.contentWidth - 60
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local totalHeight = #devices * itemHeight
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local startY = (display.contentHeight - totalHeight) / 2 + (itemHeight / 2)
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for i, device in ipairs(devices) do
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local yPos = startY + ((i - 1) * itemHeight)
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-- Container für jedes Device (zentral)
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local itemBg = display.newRoundedRect(sceneGroup, display.contentCenterX, yPos, cardWidth, itemHeight - 10, 8)
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itemBg:setFillColor(1, 1, 1)
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itemBg.strokeWidth = 2
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itemBg:setStrokeColor(0.85, 0.85, 0.85)
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-- Device Name (Titel)
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local nameText = display.newText({
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parent = sceneGroup,
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text = device.name,
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x = display.contentCenterX,
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y = yPos - 25,
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fontSize = 18,
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font = native.systemFontBold,
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align = "center"
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})
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nameText:setFillColor(0.2, 0.2, 0.2)
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-- Daten extrahieren
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local dataSet = deviceDataSets[device.name]
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local valueText = "Keine Daten"
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local dateText = ""
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if dataSet and not dataSet.error then
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if type(dataSet) == "table" and #dataSet > 0 then
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local meterData = nil
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for _, meter in ipairs(dataSet) do
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if meter.deviceId == device.deviceId then
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meterData = meter
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break
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end
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end
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if meterData and meterData.values and #meterData.values > 0 then
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local firstValue = meterData.values[1]
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if firstValue.value then
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valueText = string.format("%.2f kW", firstValue.value)
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end
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if firstValue.datetime then
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dateText = firstValue.datetime
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end
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end
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end
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elseif dataSet and dataSet.error then
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valueText = "Fehler: " .. dataSet.error
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end
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-- Wert anzeigen
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local valueLabel = display.newText({
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parent = sceneGroup,
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text = valueText,
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x = display.contentCenterX,
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y = yPos,
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fontSize = 16,
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align = "center"
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})
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valueLabel:setFillColor(0.3, 0.6, 0.3)
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-- Datum anzeigen (falls vorhanden)
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if dateText ~= "" then
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local formattedDate = dateText:match("(%d%d%d%d%-%d%d%-%d%d)")
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if formattedDate then
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local dateLabel = display.newText({
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parent = sceneGroup,
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text = "📅 " .. formattedDate,
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x = display.contentCenterX,
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y = yPos + 25,
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fontSize = 12,
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align = "center"
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})
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dateLabel:setFillColor(0.5, 0.5, 0.5)
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end
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end
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end
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print("✓ Scene01 geladen mit zentral angeordneten Datenboxen")
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end
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end
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end
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-- hide()
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function scene:hide(event)
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local sceneGroup = self.view
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local phase = event.phase
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if phase == "will" then
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-- Code hier wird ausgeführt, wenn die Scene on-screen ist (aber im Begriff ist, off-screen zu gehen)
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elseif phase == "did" then
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-- Code hier wird ausgeführt, unmittelbar nachdem die Scene off-screen gegangen ist
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-- ScrollView-Inhalt wird automatisch mit der Scene entfernt
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end
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end
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-- destroy()
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function scene:destroy(event)
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local sceneGroup = self.view
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print("Scene01 zerstört")
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end
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-- -----------------------------------------------------------------------------------
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-- Scene event function listeners
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-- -----------------------------------------------------------------------------------
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scene:addEventListener("create", scene)
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scene:addEventListener("show", scene)
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scene:addEventListener("hide", scene)
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scene:addEventListener("destroy", scene)
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-- -----------------------------------------------------------------------------------
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return scene
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