CODEWITHSUNDEEP
androidpolyline
Adam Varhegyi
Adam Varhegyi

Reputation: 9924

Android GoogleMaps: How to change a Polyline's color to a transparent one?

So how could I change my polyline's actual color to a transparent version of it?

There's no setAlpha() or alpha() function for polyline just like for a Marker. So I tought I could simple ask the color of the polyline, make it transparent then re-set the new color.

If I use getColor() on polyline I get ints like this:

-4540819

I estimated some data like this: (So I could change the 'ff' values)

0xff222345 (for example)

Because documetation says:

Line segment color in ARGB format, the same format used by Color. The default value is black (0xff000000).

So how could I make this work?

Upvotes: 1

Views: 887

Answers (2)

Remolten
Remolten

Reputation: 2682

This snippet demonstrates how to make your polyline transparent. Just change aa to your desired transparency in hex.

map.addPolyline(new PolylineOptions()
    .add(new LatLng(90, -90))
    .color(0xaa222345);

Upvotes: 1

Rybzor
Rybzor

Reputation: 183

Try this code:

map.addPolyline(new PolylineOptions()
    .add(new LatLng(-37.81319, 144.96298), new LatLng(-31.95285, 115.85734))
    .color(ContextCompat.getColor(context, R.color.transparent_color)));

Where R.color.transparent_color is

<color name="transparent_color">#00000000</color>

In your resources.

Upvotes: 0

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