Animations Utils

animation_utils.kt

import android.content.Context
import android.util.DisplayMetrics

fun linearMap(source: Float, sourceMin: Float, sourceMax: Float, targetMin: Float, targetMax: Float): Float {
    return ((source - sourceMin) / (sourceMax - sourceMin)) * (targetMax - targetMin) + targetMin
}

fun clampedLinearPercent(percent: Float, expandAnchor: Float, collapseAnchor: Float) : Float {
    return ((Math.max(percent, collapseAnchor) - collapseAnchor) / (expandAnchor - collapseAnchor)) * expandAnchor
}

fun convertDpToPixel(dp: Float, context: Context): Float {
    return dp * (context.resources.displayMetrics.densityDpi.toFloat()/ DisplayMetrics.DENSITY_DEFAULT)
}

fun convertPixelsToDp(px: Float, context: Context): Float {
    return px / (context.resources.displayMetrics.densityDpi.toFloat() / DisplayMetrics.DENSITY_DEFAULT)
}