android - 如何使用 android google map sdk v2 绘制虚线折线？

Question

我浏览了documentation of polyline并且没有选项可以使它变成虚线。

有人知道如何使用 android google map sdk v2 绘制虚线折线吗？

Answer 1

现在在折线中，您可以将图案设置为短划线、点或间隙只需应用以下内容

public static final int PATTERN_DASH_LENGTH_PX = 20;
public static final int PATTERN_GAP_LENGTH_PX = 20;
public static final PatternItem DOT = new Dot();
public static final PatternItem DASH = new Dash(PATTERN_DASH_LENGTH_PX);
public static final PatternItem GAP = new Gap(PATTERN_GAP_LENGTH_PX);
public static final List<PatternItem> PATTERN_POLYGON_ALPHA = Arrays.asList(GAP, DASH);

 private void drawDashedLeg(GoogleMap googleMap, Route route) {
    PolylineOptions polyOptions = new PolylineOptions();
    polyOptions.color(ContextCompat.getColor(getContext(), R.color.coolgrey));
    polyOptions.addAll(route.getPoints());
    polyOptions.pattern(PATTERN_POLYGON_ALPHA);
    Polyline polyline = googleMap.addPolyline(polyOptions);
    polylines.add(polyline);
}