caspervk/AndroidAPS
1
0
Fork 0
Code Releases Activity

TrendArrow calculation

Browse source
This commit is contained in:
Milos Kozak 2021-03-05 23:08:43 +01:00
parent 65770ecbf6
commit 23c23ea0b8
3 changed files with 47 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
app/src/main/java/info/nightscout/androidaps/plugins/general/overview/OverviewFragment.kt
View file

@ -109,6 +109,7 @@ class OverviewFragment : DaggerFragment(), View.OnClickListener, OnLongClickList
@Inject lateinit var fabricPrivacy: FabricPrivacy
@Inject lateinit var overviewMenus: OverviewMenus
@Inject lateinit var skinProvider: SkinProvider
@Inject lateinit var trendCalculator: TrendCalculator
@Inject lateinit var config: Config
@Inject lateinit var dateUtil: DateUtil
@Inject lateinit var databaseHelper: DatabaseHelperInterface
@ -584,7 +585,7 @@ class OverviewFragment : DaggerFragment(), View.OnClickListener, OnLongClickList
binding.infoLayout.bg.text = lastBG.valueToUnitsString(units)
binding.infoLayout.bg.setTextColor(color)
binding.infoLayout.arrow.setImageResource(lastBG.trendArrow.directionToIcon())
binding.infoLayout.arrow.setImageResource(trendCalculator.getTrendArrow(lastBG).directionToIcon())
binding.infoLayout.arrow.setColorFilter(color)
val glucoseStatus = GlucoseStatus(injector).glucoseStatusData

45
app/src/main/java/info/nightscout/androidaps/utils/TrendCalculator.kt Normal file
View file

@ -0,0 +1,45 @@
package info.nightscout.androidaps.utils
import info.nightscout.androidaps.database.AppRepository
import info.nightscout.androidaps.database.entities.GlucoseValue
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
class TrendCalculator @Inject constructor(
private val repository: AppRepository
) {
fun getTrendArrow(glucoseValue: GlucoseValue): GlucoseValue.TrendArrow =
if (glucoseValue.trendArrow != GlucoseValue.TrendArrow.NONE) glucoseValue.trendArrow
else calculateDirection(glucoseValue)
private fun calculateDirection(glucoseValue: GlucoseValue): GlucoseValue.TrendArrow {
val toTime = glucoseValue.timestamp
val readings = repository.compatGetBgReadingsDataFromTime(toTime - T.mins(10).msecs(), toTime, false).blockingGet()
if (readings.size < 2)
return GlucoseValue.TrendArrow.NONE
val current = readings[0]
val previous = readings[1]
// Avoid division by 0
val slope =
if (current.timestamp == previous.timestamp) 0.0
else (previous.value - current.value) / (previous.timestamp - current.timestamp)
val slopeByMinute = slope * 60000
return when {
slopeByMinute <= -3.5 -> GlucoseValue.TrendArrow.DOUBLE_DOWN
slopeByMinute <= -2 -> GlucoseValue.TrendArrow.SINGLE_DOWN
slopeByMinute <= -1 -> GlucoseValue.TrendArrow.FORTY_FIVE_DOWN
slopeByMinute <= 1 -> GlucoseValue.TrendArrow.FLAT
slopeByMinute <= 2 -> GlucoseValue.TrendArrow.FORTY_FIVE_UP
slopeByMinute <= 3.5 -> GlucoseValue.TrendArrow.SINGLE_UP
slopeByMinute <= 40 -> GlucoseValue.TrendArrow.DOUBLE_UP
else -> GlucoseValue.TrendArrow.NONE
}
}
}

0
app/src/main/java/info/nightscout/androidaps/utils/GlucoseValueUtils.kt → app/src/main/java/info/nightscout/androidaps/utils/extensions/GlucoseValueUtils.kt
View file