feat: PlacementGuideView + MeasurementLogService + navigation flow
PlacementGuideView.kt: - 6-sensor Canvas layout (CH0-CH3 vertical + CH4/CH5 lateral wings) - Per-channel UrinAI detection (green/red color coding) - Direction guidance (up/down/left/right) - Check Position → maa → detect → display - Start Measurement when 4+ channels detected MeasurementLogService.kt: - JSON Lines format, daily rotation - Events: measurement, placement, ble_connected/disconnected, error - 90-day auto-purge - App internal storage: vesiscan_logs/YYYY-MM-DD.jsonl AppState.kt + MainActivity.kt: - PLACEMENT_GUIDE screen added to navigation - Flow: personalization → placementGuide → piezoMonitoring Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
dwjang
@@ -12,7 +12,7 @@ import com.example.medilightv2android.services.*
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enum class AppScreen {
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ONBOARDING, CONSENT, REGISTRATION, HOME, SENSOR_SELECT, DEVICE_SCAN,
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NIRS_CALIBRATION, PIEZO_PERSONALIZATION, PIN_SETUP, PIN_ENTRY,
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NIRS_CALIBRATION, PIEZO_PERSONALIZATION, PLACEMENT_GUIDE, PIN_SETUP, PIN_ENTRY,
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VIVAMYO_MONITORING, PIEZO_MONITORING, MEASUREMENT_HISTORY,
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VOIDING_DIARY, URINE_CAMERA, REMINDER_SETTINGS
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}
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@@ -121,6 +121,10 @@ class AppState(private val context: Context) {
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fun personalizationComplete() {
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storage.piezoSettings = piezoSettings
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currentScreen = AppScreen.PLACEMENT_GUIDE
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}
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fun placementComplete() {
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currentScreen = AppScreen.PIEZO_MONITORING
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}
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@@ -21,6 +21,7 @@ import com.example.medilightv2android.ui.views.calibration.CalibrationView
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import com.example.medilightv2android.ui.views.connection.DeviceScanView
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import com.example.medilightv2android.ui.views.history.MeasurementHistoryView
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import com.example.medilightv2android.ui.views.home.HomeView
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import com.example.medilightv2android.ui.views.monitoring.PlacementGuideView
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import com.example.medilightv2android.ui.views.monitoring.PiezoMonitoringView
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import com.example.medilightv2android.ui.views.monitoring.VivamyoMonitoringView
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import com.example.medilightv2android.ui.views.monitoring.UrineCameraScreen
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@@ -74,6 +75,7 @@ fun MedilightApp(modifier: Modifier = Modifier) {
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AppScreen.DEVICE_SCAN -> DeviceScanView(appState)
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AppScreen.NIRS_CALIBRATION -> CalibrationView(appState)
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AppScreen.PIEZO_PERSONALIZATION -> PiezoPersonalizationView(appState)
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AppScreen.PLACEMENT_GUIDE -> PlacementGuideView(appState)
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AppScreen.PIN_SETUP -> PinView(appState, PinMode.SETUP, context)
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AppScreen.PIN_ENTRY -> PinView(appState, PinMode.ENTER, context)
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AppScreen.VIVAMYO_MONITORING -> VivamyoMonitoringView(appState)
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@@ -0,0 +1,206 @@
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package com.example.medilightv2android.services
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import android.content.Context
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import android.os.Build
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import org.json.JSONArray
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import org.json.JSONObject
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import java.io.File
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import java.text.SimpleDateFormat
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import java.util.*
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/**
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* Measurement log auto-save service.
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*
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* All measurement results are saved in JSON Lines format to internal storage.
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* Medical audit trail + QA verification.
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*
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* File location: vesiscan_logs/YYYY-MM-DD.jsonl
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* Each line = one measurement event (JSON)
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*/
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class MeasurementLogService private constructor(context: Context) {
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private val logDir: File
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private val dateFormatter = SimpleDateFormat("yyyy-MM-dd", Locale.US)
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private val timestampFormatter = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS", Locale.US)
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init {
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logDir = File(context.filesDir, "vesiscan_logs")
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if (!logDir.exists()) logDir.mkdirs()
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}
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companion object {
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@Volatile
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private var instance: MeasurementLogService? = null
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fun getInstance(context: Context): MeasurementLogService {
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return instance ?: synchronized(this) {
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instance ?: MeasurementLogService(context.applicationContext).also { instance = it }
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}
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}
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}
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// -- Log Events --
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/**
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* Log a spot measurement result.
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*/
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fun logMeasurement(
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volumeMl: Double?,
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channels: List<ChannelLogEntry>,
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rawADC: List<List<UShort>>
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) {
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val entry = JSONObject().apply {
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put("event", "measurement")
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put("timestamp", timestampFormatter.format(Date()))
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put("device", Build.MODEL)
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put("app_version", getAppVersion())
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}
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if (volumeMl != null) {
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entry.put("volume_ml", Math.round(volumeMl * 10.0) / 10.0)
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}
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// Per-channel detection
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val chArray = JSONArray()
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for (ch in channels) {
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val chObj = JSONObject().apply {
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put("channel", ch.channel)
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ch.ant?.let { put("ant", it) }
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ch.post?.let { put("post", it) }
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ch.urineLen?.let { put("urine_len", it) }
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ch.score?.let { put("score", Math.round(it * 10.0) / 10.0) }
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}
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chArray.put(chObj)
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}
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entry.put("channels", chArray)
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// Raw ADC (compact: comma-separated per channel)
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val adcObj = JSONObject()
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for ((i, adc) in rawADC.withIndex()) {
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adcObj.put("CH$i", adc.joinToString(",") { it.toString() })
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}
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entry.put("adc", adcObj)
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appendLog(entry)
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}
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/**
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* Log Placement Guide result.
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*/
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fun logPlacement(
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channelDetected: List<Boolean>,
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direction: String
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) {
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val entry = JSONObject().apply {
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put("event", "placement")
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put("timestamp", timestampFormatter.format(Date()))
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val arr = JSONArray()
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for (d in channelDetected) arr.put(d)
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put("detected", arr)
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put("detected_count", channelDetected.count { it })
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put("direction", direction)
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}
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appendLog(entry)
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}
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/**
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* Log BLE connection/disconnection.
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*/
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fun logConnection(event: String, deviceName: String = "") {
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val entry = JSONObject().apply {
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put("event", "ble_$event")
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put("timestamp", timestampFormatter.format(Date()))
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put("device_name", deviceName)
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}
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appendLog(entry)
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}
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/**
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* Log an error.
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*/
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fun logError(message: String) {
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val entry = JSONObject().apply {
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put("event", "error")
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put("timestamp", timestampFormatter.format(Date()))
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put("message", message)
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}
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appendLog(entry)
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}
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// -- File Operations --
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private fun appendLog(entry: JSONObject) {
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try {
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val line = entry.toString() + "\n"
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val fileName = dateFormatter.format(Date()) + ".jsonl"
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val file = File(logDir, fileName)
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file.appendText(line)
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} catch (e: Exception) {
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// Silently fail — logging should never crash the app
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}
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}
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/** Today's log file */
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val todayLogFile: File
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get() = File(logDir, dateFormatter.format(Date()) + ".jsonl")
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/** All log files, newest first */
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fun listLogFiles(): List<File> {
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return logDir.listFiles { f -> f.extension == "jsonl" }
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?.sortedByDescending { it.name }
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?: emptyList()
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}
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/** Read a log file as lines */
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fun readLog(file: File): List<String> {
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return try {
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file.readLines().filter { it.isNotBlank() }
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} catch (e: Exception) {
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emptyList()
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}
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}
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/** Today's log as text */
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fun todayLogText(): String {
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return try {
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todayLogFile.readText()
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} catch (e: Exception) {
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"(no logs today)"
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}
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}
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/** Total log size in bytes */
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val totalLogSize: Long
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get() = listLogFiles().sumOf { it.length() }
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/** Purge logs older than [keepDays] days (default 90) */
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fun purgeOldLogs(keepDays: Int = 90) {
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val calendar = Calendar.getInstance()
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calendar.add(Calendar.DAY_OF_YEAR, -keepDays)
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val cutoffStr = dateFormatter.format(calendar.time)
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for (file in listLogFiles()) {
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val name = file.nameWithoutExtension
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if (name < cutoffStr) {
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file.delete()
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}
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}
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}
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private fun getAppVersion(): String {
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return try {
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val context = logDir.parentFile // filesDir parent hack — not ideal
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"1.0" // Fallback; ideally inject from BuildConfig
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} catch (e: Exception) {
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"unknown"
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}
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}
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}
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/** Data class for channel log entries */
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data class ChannelLogEntry(
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val channel: Int,
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val ant: Int? = null,
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val post: Int? = null,
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val urineLen: Int? = null,
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val score: Double? = null
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)
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+522
@@ -0,0 +1,522 @@
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package com.example.medilightv2android.ui.views.monitoring
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import android.util.Log
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import androidx.compose.foundation.Canvas
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import androidx.compose.foundation.background
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import androidx.compose.foundation.clickable
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import androidx.compose.foundation.layout.*
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import androidx.compose.foundation.rememberScrollState
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import androidx.compose.foundation.shape.CircleShape
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import androidx.compose.foundation.shape.RoundedCornerShape
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import androidx.compose.foundation.verticalScroll
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import androidx.compose.material.icons.Icons
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import androidx.compose.material.icons.automirrored.filled.ArrowBack
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import androidx.compose.material.icons.filled.*
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import androidx.compose.material3.*
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import androidx.compose.runtime.*
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.draw.clip
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import androidx.compose.ui.draw.rotate
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import androidx.compose.ui.draw.shadow
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import androidx.compose.ui.geometry.CornerRadius
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import androidx.compose.ui.geometry.Offset
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import androidx.compose.ui.geometry.Size
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import androidx.compose.ui.graphics.Brush
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.graphics.PathEffect
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import androidx.compose.ui.graphics.drawscope.Stroke
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import androidx.compose.ui.graphics.drawscope.rotate
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import androidx.compose.ui.platform.LocalContext
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import androidx.compose.ui.text.font.FontWeight
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import androidx.compose.ui.text.style.TextAlign
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import androidx.compose.ui.unit.dp
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import androidx.compose.ui.unit.sp
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import com.example.medilightv2android.AppState
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import com.example.medilightv2android.ble.BleManager
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import com.example.medilightv2android.ble.PiezoChannelData
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import com.example.medilightv2android.managers.PiezoEchoAnalyzer
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import com.example.medilightv2android.managers.UrinAI
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import com.example.medilightv2android.services.MeasurementLogService
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import com.example.medilightv2android.ui.theme.*
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/**
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* Sensor Placement Guide -- shown after BLE connection, before measurement.
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*
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* Displays a 6-channel sensor layout, shows per-channel UrinAI detection
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* (green = detected, red = not), and provides direction guidance.
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*
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* Flow: deviceScan -> personalization -> placementGuide -> piezoMonitoring
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*/
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@Composable
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fun PlacementGuideView(appState: AppState) {
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val context = LocalContext.current
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val bleManager = remember { BleManager.getInstance(context) }
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val logService = remember { MeasurementLogService.getInstance(context) }
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val analyzer = remember { PiezoEchoAnalyzer.shared }
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var isScanning by remember { mutableStateOf(false) }
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val channelDetected = remember { mutableStateListOf(false, false, false, false, false, false) }
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var directionHint by remember { mutableStateOf("") }
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var directionIcon by remember { mutableStateOf("") }
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var scanCount by remember { mutableIntStateOf(0) }
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var isLocked by remember { mutableStateOf(false) }
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val detectedCount = channelDetected.count { it }
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Column(
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modifier = Modifier
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.fillMaxSize()
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.background(MlBackground)
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) {
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// Top bar
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Row(
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modifier = Modifier
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.fillMaxWidth()
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.padding(horizontal = 24.dp, vertical = 16.dp),
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verticalAlignment = Alignment.CenterVertically
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) {
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IconButton(onClick = { appState.goHome() }) {
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Icon(
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Icons.AutoMirrored.Filled.ArrowBack,
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contentDescription = "Back",
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tint = MlPrimary
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)
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}
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Text(
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text = "Sensor Placement",
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fontSize = 20.sp,
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fontWeight = FontWeight.Bold,
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modifier = Modifier.padding(start = 8.dp)
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)
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Spacer(modifier = Modifier.weight(1f))
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if (isLocked) {
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Row(
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verticalAlignment = Alignment.CenterVertically,
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horizontalArrangement = Arrangement.spacedBy(4.dp)
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) {
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Icon(
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Icons.Filled.CheckCircle,
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contentDescription = "Ready",
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tint = Color(0xFF4CAF50)
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)
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Text(
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text = "Ready",
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fontSize = 14.sp,
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fontWeight = FontWeight.Bold,
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color = Color(0xFF4CAF50)
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)
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}
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}
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}
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Column(
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modifier = Modifier
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.fillMaxSize()
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.verticalScroll(rememberScrollState())
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.padding(horizontal = 24.dp),
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horizontalAlignment = Alignment.CenterHorizontally
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) {
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// Instructions
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Text(
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text = "Place the sensor on your lower abdomen.\nAdjust until all channels turn green.",
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fontSize = 14.sp,
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color = MlSecondaryText,
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textAlign = TextAlign.Center,
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modifier = Modifier.padding(top = 8.dp)
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)
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Spacer(modifier = Modifier.height(24.dp))
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// Sensor layout visualization
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SensorLayoutCanvas(
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channelDetected = channelDetected,
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directionIcon = directionIcon,
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isLocked = isLocked
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)
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Spacer(modifier = Modifier.height(24.dp))
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// Direction guide
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if (directionHint.isNotEmpty() && !isLocked) {
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Row(
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modifier = Modifier
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.fillMaxWidth()
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.background(
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Color(0xFFFFF3E0),
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RoundedCornerShape(14.dp)
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)
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.padding(16.dp),
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verticalAlignment = Alignment.CenterVertically,
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horizontalArrangement = Arrangement.spacedBy(12.dp)
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) {
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val icon = when {
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directionIcon.contains("up") -> Icons.Filled.KeyboardArrowUp
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directionIcon.contains("down") -> Icons.Filled.KeyboardArrowDown
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directionIcon.contains("left") -> Icons.Filled.ArrowBack
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directionIcon.contains("right") -> Icons.Filled.ArrowForward
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directionIcon.contains("check") -> Icons.Filled.CheckCircle
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else -> Icons.Filled.Warning
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}
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Icon(
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icon,
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contentDescription = null,
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tint = Color(0xFFFF9800),
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modifier = Modifier.size(24.dp)
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)
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Text(
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text = directionHint,
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fontSize = 16.sp,
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fontWeight = FontWeight.SemiBold,
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color = Color(0xFFFF9800)
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)
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}
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}
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Spacer(modifier = Modifier.height(24.dp))
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// Status summary - channel dots row
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Row(
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modifier = Modifier.fillMaxWidth(),
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verticalAlignment = Alignment.CenterVertically,
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horizontalArrangement = Arrangement.spacedBy(8.dp)
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) {
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for (i in 0 until 6) {
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Column(
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horizontalAlignment = Alignment.CenterHorizontally,
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verticalArrangement = Arrangement.spacedBy(4.dp)
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) {
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Box(
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modifier = Modifier
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.size(12.dp)
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.clip(CircleShape)
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.background(
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if (channelDetected[i]) Color(0xFF4CAF50)
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else Color.Red.copy(alpha = 0.4f)
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)
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)
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Text(
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text = "CH$i",
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fontSize = 9.sp,
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||||
fontWeight = FontWeight.SemiBold,
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color = MlSecondaryText
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)
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}
|
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}
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Spacer(modifier = Modifier.weight(1f))
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Text(
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text = "$detectedCount/6",
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fontSize = 16.sp,
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fontWeight = FontWeight.Bold,
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color = if (detectedCount >= 4) Color(0xFF4CAF50) else Color(0xFFFF9800)
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)
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}
|
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|
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Spacer(modifier = Modifier.height(24.dp))
|
||||
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// Check Position button
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Button(
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onClick = {
|
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if (!isScanning) {
|
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isScanning = true
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bleManager.piezoCollector.onMultiChannelComplete = { channels ->
|
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isScanning = false
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scanCount++
|
||||
|
||||
// Run UrinAI on each channel
|
||||
val detected = MutableList(6) { false }
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||||
for (ch in channels) {
|
||||
if (ch.buffer.isNotEmpty() && ch.channel < 6) {
|
||||
val gate = UrinAI.detect(ch.buffer)
|
||||
detected[ch.channel] = gate.detected
|
||||
|
||||
// Echo analysis as backup
|
||||
if (!gate.detected) {
|
||||
val analysis = analyzer.analyzeChannel(ch.buffer, ch.channel)
|
||||
if (analysis.isValid) {
|
||||
val r = analysis.result
|
||||
if (r != null && r.urineLen >= 10) {
|
||||
detected[ch.channel] = true
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (i in 0 until 6) {
|
||||
channelDetected[i] = detected[i]
|
||||
}
|
||||
|
||||
// Direction guidance
|
||||
val hints = updateDirectionGuide(detected)
|
||||
directionHint = hints.first
|
||||
directionIcon = hints.second
|
||||
|
||||
// Lock if 4+ detected
|
||||
if (detected.count { it } >= 4) {
|
||||
isLocked = true
|
||||
}
|
||||
|
||||
Log.d("PlacementGuide", "Placement: ${detected.count { it }}/6 -- ${
|
||||
detected.mapIndexed { idx, d -> if (d) "CH$idx OK" else "CH$idx X" }.joinToString(" ")
|
||||
}")
|
||||
|
||||
// Save placement log
|
||||
logService.logPlacement(
|
||||
channelDetected = detected,
|
||||
direction = directionHint
|
||||
)
|
||||
}
|
||||
bleManager.piezoCollector.onLog = { msg ->
|
||||
Log.d("PlacementGuide", msg)
|
||||
}
|
||||
bleManager.sendAllChannels()
|
||||
}
|
||||
},
|
||||
enabled = !isScanning,
|
||||
modifier = Modifier
|
||||
.fillMaxWidth()
|
||||
.height(52.dp),
|
||||
shape = RoundedCornerShape(14.dp),
|
||||
colors = ButtonDefaults.buttonColors(
|
||||
containerColor = if (isScanning) Color.Gray else MlPrimary,
|
||||
disabledContainerColor = Color.Gray
|
||||
)
|
||||
) {
|
||||
if (isScanning) {
|
||||
CircularProgressIndicator(
|
||||
modifier = Modifier.size(20.dp),
|
||||
color = Color.White,
|
||||
strokeWidth = 2.dp
|
||||
)
|
||||
Spacer(modifier = Modifier.width(8.dp))
|
||||
}
|
||||
Text(
|
||||
text = if (isScanning) "Scanning..." else "Check Position",
|
||||
fontSize = 16.sp,
|
||||
fontWeight = FontWeight.SemiBold,
|
||||
color = Color.White
|
||||
)
|
||||
}
|
||||
|
||||
// Start Measurement button (when 4+ channels detected)
|
||||
if (isLocked || detectedCount >= 4) {
|
||||
Spacer(modifier = Modifier.height(12.dp))
|
||||
Button(
|
||||
onClick = { appState.placementComplete() },
|
||||
modifier = Modifier
|
||||
.fillMaxWidth()
|
||||
.height(52.dp),
|
||||
shape = RoundedCornerShape(14.dp),
|
||||
colors = ButtonDefaults.buttonColors(
|
||||
containerColor = Color(0xFF4CAF50)
|
||||
)
|
||||
) {
|
||||
Icon(
|
||||
Icons.Filled.PlayArrow,
|
||||
contentDescription = null,
|
||||
tint = Color.White
|
||||
)
|
||||
Spacer(modifier = Modifier.width(8.dp))
|
||||
Text(
|
||||
text = "Start Measurement",
|
||||
fontSize = 16.sp,
|
||||
fontWeight = FontWeight.Bold,
|
||||
color = Color.White
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
// Skip button
|
||||
Spacer(modifier = Modifier.height(16.dp))
|
||||
TextButton(onClick = { appState.placementComplete() }) {
|
||||
Text(
|
||||
text = "Skip Placement Guide",
|
||||
fontSize = 13.sp,
|
||||
color = MlSecondaryText
|
||||
)
|
||||
}
|
||||
|
||||
Spacer(modifier = Modifier.height(32.dp))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Canvas-based sensor layout visualization.
|
||||
* Draws body outline, bladder outline, and 6 sensor dots with labels.
|
||||
*/
|
||||
@Composable
|
||||
private fun SensorLayoutCanvas(
|
||||
channelDetected: List<Boolean>,
|
||||
directionIcon: String,
|
||||
isLocked: Boolean
|
||||
) {
|
||||
val greenColor = Color(0xFF4CAF50)
|
||||
val redColor = Color.Red.copy(alpha = 0.5f)
|
||||
val orangeColor = Color(0xFFFF9800).copy(alpha = 0.6f)
|
||||
|
||||
Box(
|
||||
modifier = Modifier
|
||||
.fillMaxWidth()
|
||||
.height(300.dp),
|
||||
contentAlignment = Alignment.Center
|
||||
) {
|
||||
Canvas(
|
||||
modifier = Modifier
|
||||
.width(280.dp)
|
||||
.height(300.dp)
|
||||
) {
|
||||
val centerX = size.width / 2
|
||||
val centerY = size.height / 2
|
||||
|
||||
// Body outline (rounded rectangle)
|
||||
drawRoundRect(
|
||||
color = Color.Gray.copy(alpha = 0.2f),
|
||||
topLeft = Offset(centerX - 100f, centerY - 140f),
|
||||
size = Size(200f, 280f),
|
||||
cornerRadius = CornerRadius(30f),
|
||||
style = Stroke(width = 2f)
|
||||
)
|
||||
|
||||
// Bladder outline (dashed ellipse)
|
||||
drawOval(
|
||||
color = Color.Cyan.copy(alpha = 0.3f),
|
||||
topLeft = Offset(centerX - 60f, centerY - 60f),
|
||||
size = Size(120f, 100f),
|
||||
style = Stroke(
|
||||
width = 1.5f,
|
||||
pathEffect = PathEffect.dashPathEffect(floatArrayOf(10f, 6f))
|
||||
)
|
||||
)
|
||||
|
||||
// Sensor positions: channel -> (offsetX, offsetY)
|
||||
data class SensorPos(val ch: Int, val x: Float, val y: Float, val angle: Float, val label: String)
|
||||
val sensors = listOf(
|
||||
SensorPos(3, 0f, -80f, -10f, "CH3\n-10\u00B0"),
|
||||
SensorPos(2, 0f, -25f, 0f, "CH2\n0\u00B0"),
|
||||
SensorPos(1, 0f, 30f, 10f, "CH1\n+10\u00B0"),
|
||||
SensorPos(0, 0f, 85f, 20f, "CH0\n+20\u00B0"),
|
||||
SensorPos(4, -80f, -25f, 10f, "CH4\nL 5\u00B0"),
|
||||
SensorPos(5, 80f, -25f, 10f, "CH5\nR 5\u00B0")
|
||||
)
|
||||
|
||||
for (s in sensors) {
|
||||
val detected = if (s.ch < channelDetected.size) channelDetected[s.ch] else false
|
||||
val color = if (detected) greenColor else redColor
|
||||
val sx = centerX + s.x
|
||||
val sy = centerY + s.y
|
||||
|
||||
// Sensor body (rotated rounded rect)
|
||||
rotate(degrees = s.angle, pivot = Offset(sx, sy)) {
|
||||
drawRoundRect(
|
||||
color = color,
|
||||
topLeft = Offset(sx - 14f, sy - 7f),
|
||||
size = Size(28f, 14f),
|
||||
cornerRadius = CornerRadius(3f)
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
// Direction arrow overlay
|
||||
if (directionIcon.isNotEmpty() && !isLocked) {
|
||||
val arrowLength = 30f
|
||||
val arrowStroke = Stroke(width = 4f)
|
||||
when {
|
||||
directionIcon.contains("up") -> {
|
||||
val ax = centerX
|
||||
val ay = centerY - 130f
|
||||
drawLine(orangeColor, Offset(ax, ay + arrowLength), Offset(ax, ay), strokeWidth = 4f)
|
||||
drawLine(orangeColor, Offset(ax - 10f, ay + 10f), Offset(ax, ay), strokeWidth = 4f)
|
||||
drawLine(orangeColor, Offset(ax + 10f, ay + 10f), Offset(ax, ay), strokeWidth = 4f)
|
||||
}
|
||||
directionIcon.contains("down") -> {
|
||||
val ax = centerX
|
||||
val ay = centerY + 130f
|
||||
drawLine(orangeColor, Offset(ax, ay - arrowLength), Offset(ax, ay), strokeWidth = 4f)
|
||||
drawLine(orangeColor, Offset(ax - 10f, ay - 10f), Offset(ax, ay), strokeWidth = 4f)
|
||||
drawLine(orangeColor, Offset(ax + 10f, ay - 10f), Offset(ax, ay), strokeWidth = 4f)
|
||||
}
|
||||
directionIcon.contains("left") -> {
|
||||
val ax = centerX - 130f
|
||||
val ay = centerY
|
||||
drawLine(orangeColor, Offset(ax + arrowLength, ay), Offset(ax, ay), strokeWidth = 4f)
|
||||
drawLine(orangeColor, Offset(ax + 10f, ay - 10f), Offset(ax, ay), strokeWidth = 4f)
|
||||
drawLine(orangeColor, Offset(ax + 10f, ay + 10f), Offset(ax, ay), strokeWidth = 4f)
|
||||
}
|
||||
directionIcon.contains("right") -> {
|
||||
val ax = centerX + 130f
|
||||
val ay = centerY
|
||||
drawLine(orangeColor, Offset(ax - arrowLength, ay), Offset(ax, ay), strokeWidth = 4f)
|
||||
drawLine(orangeColor, Offset(ax - 10f, ay - 10f), Offset(ax, ay), strokeWidth = 4f)
|
||||
drawLine(orangeColor, Offset(ax - 10f, ay + 10f), Offset(ax, ay), strokeWidth = 4f)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Overlay text labels (outside Canvas for proper text rendering)
|
||||
data class LabelPos(val ch: Int, val x: Int, val y: Int, val label: String)
|
||||
val labels = listOf(
|
||||
LabelPos(3, 0, -80, "CH3\n-10\u00B0"),
|
||||
LabelPos(2, 0, -25, "CH2\n0\u00B0"),
|
||||
LabelPos(1, 0, 30, "CH1\n+10\u00B0"),
|
||||
LabelPos(0, 0, 85, "CH0\n+20\u00B0"),
|
||||
LabelPos(4, -80, -25, "CH4\nL 5\u00B0"),
|
||||
LabelPos(5, 80, -25, "CH5\nR 5\u00B0")
|
||||
)
|
||||
for (lbl in labels) {
|
||||
val detected = if (lbl.ch < channelDetected.size) channelDetected[lbl.ch] else false
|
||||
Text(
|
||||
text = lbl.label,
|
||||
fontSize = 8.sp,
|
||||
fontWeight = FontWeight.SemiBold,
|
||||
color = if (detected) Color(0xFF4CAF50) else Color.Gray,
|
||||
textAlign = TextAlign.Center,
|
||||
lineHeight = 10.sp,
|
||||
modifier = Modifier.offset(x = lbl.x.dp, y = (lbl.y + 14).dp)
|
||||
)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Compute direction guidance based on which channels are detected.
|
||||
* Returns (hint text, icon identifier).
|
||||
*/
|
||||
private fun updateDirectionGuide(detected: List<Boolean>): Pair<String, String> {
|
||||
val topDetected = detected[3] // CH3 = top
|
||||
val bottomDetected = detected[0] // CH0 = bottom
|
||||
val leftDetected = if (detected.size > 4) detected[4] else true // CH4
|
||||
val rightDetected = if (detected.size > 5) detected[5] else true // CH5
|
||||
|
||||
val detectedCount = detected.count { it }
|
||||
|
||||
if (detectedCount >= 4) {
|
||||
return "Good position! Ready to measure." to "checkmark.circle"
|
||||
}
|
||||
|
||||
// Vertical guidance
|
||||
if (!topDetected && bottomDetected) {
|
||||
return "Move sensor DOWN" to "arrow.down"
|
||||
}
|
||||
if (topDetected && !bottomDetected) {
|
||||
return "Move sensor UP" to "arrow.up"
|
||||
}
|
||||
|
||||
// Horizontal guidance
|
||||
if (!leftDetected && rightDetected) {
|
||||
return "Move sensor RIGHT" to "arrow.right"
|
||||
}
|
||||
if (leftDetected && !rightDetected) {
|
||||
return "Move sensor LEFT" to "arrow.left"
|
||||
}
|
||||
|
||||
// No signal
|
||||
if (detectedCount == 0) {
|
||||
return "No bladder detected. Check sensor contact." to "exclamationmark.triangle"
|
||||
}
|
||||
|
||||
// Partial
|
||||
return "Adjust sensor position slowly" to "arrow.up.arrow.down"
|
||||
}
|
||||
Reference in New Issue
Block a user