'How to create text inside marker with google_maps_flutter?

How to implement a marker on Google Maps flutter with text on the marker. Image for reference:

https://i.stack.imgur.com/W6oqG.jpg

flutterdartgoogle-maps-api-3flutter-layoutgoogle-maps-markers


Solution 1:[1]

I managed to solve with this method

Future<BitmapDescriptor> createCustomMarkerBitmap(String title) async {
        TextSpan span = new TextSpan(
          style: new TextStyle(
            color: Prefs.singleton().getTheme() == 'Dark'
                ? Colors.white
                : Colors.black,
            fontSize: 35.0,
            fontWeight: FontWeight.bold,
          ),
          text: title,
        );
    
        TextPainter tp = new TextPainter(
          text: span,
          textAlign: TextAlign.center,
          textDirection: TextDirection.ltr,
        );
        tp.text = TextSpan(
        text: title.toStringAsFixed(0),
        style: TextStyle(
          fontSize: 35.0,
          color: Theme.of(context).accentColor,
          letterSpacing: 1.0,
          fontFamily: 'Roboto Bold',
         ),
        );
    
        PictureRecorder recorder = new PictureRecorder();
        Canvas c = new Canvas(recorder);
    
        tp.layout();
        tp.paint(c, new Offset(20.0, 10.0));
    
        /* Do your painting of the custom icon here, including drawing text, shapes, etc. */
    
        Picture p = recorder.endRecording();
        ByteData pngBytes =
            await (await p.toImage(tp.width.toInt() + 40, tp.height.toInt() + 20))
                .toByteData(format: ImageByteFormat.png);
    
        Uint8List data = Uint8List.view(pngBytes.buffer);
    
        return BitmapDescriptor.fromBytes(data);
      }

how to use:

BitmapDescriptor bitmapDescriptor = await createCustomMarkerBitmap(...);

Marker marker = Marker(
  /*  in addition to your other properties: */
  icon: bitmapDescriptor
);

Solution 2:[2]

You can either do it manually using Canvas and Painter. Or you could use this package which does the exact same thing asked in the question.

https://pub.dev/packages/label_marker

Just go through the overview once and you can see if it is for you or not. I really hope it helps. And yeah. I made it :)

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1
Solution 2 Nirmal Scaria

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