chooseNumericVariant method
Return the best choice of resolution variants for current device pixel ratio in the double type. Example: 1.5
Implementation
double chooseNumericVariant(BuildContext context) {
var currentRatio = MediaQuery.of(context).devicePixelRatio;
String bestVariant =
_AssetVariantChooser._findBestVariant(_candidates, currentRatio) ??
_defaultRatioName;
if (bestVariant == _defaultRatioName) {
bestVariant = _AssetVariantChooser.assetName;
}
return _AssetVariantChooser._parseScale(bestVariant);
}