How to specify the size of the icon on the Marker in Google Maps V2 Android

问题

In may app i use Map from Google Maps V2 and in this map i am trying to add markers each Marker with an icon, but the marker is taking the size of the icon which is making the icon looks flue. How can i specify the size of the marker in dp so that i can control how it looks like on the map

回答1:

Currently i think we cannot change the marker size, so u can add marker image in drawable and re-size something like this:,

int height = 100;
 int width = 100;
 BitmapDrawable bitmapdraw=(BitmapDrawable)getResources().getDrawable(R.mipmap.marker);
  Bitmap b=bitmapdraw.getBitmap();
Bitmap smallMarker = Bitmap.createScaledBitmap(b, width, height, false);

Ur add marker be like this with icon

                map.addMarker(new MarkerOptions()
                        .position(POSITION)
                        .title("Your title")
                        .icon(BitmapDescriptorFactory.fromBitmap(smallMarker))
                );

回答2:

Approved answer is outdated (getDrawable(), depricated since API level 22), so I changed it a litte bit:

int height = 100;
int width = 100;
Bitmap b = BitmapFactory.decodeResource(getResources(), R.drawable.FOO);
Bitmap smallMarker = Bitmap.createScaledBitmap(b, width, height, false);
BitmapDescriptor smallMarkerIcon = BitmapDescriptorFactory.fromBitmap(smallMarker);

and then apply it in MarkerOption

.icon(smallMarkerIcon)

回答3:

I think you can look for an answer on this question, where it already explained how to create a custom marker, with a given width and height by creating a dynamic bitmap.

回答4:

[edit: formatting]

Drawable circleDrawable = getResources().getDrawable(R.mipmap.primarysplitter);
            bitmapDescriptor=getMarkerIconFromDrawable(circleDrawable);


private BitmapDescriptor getMarkerIconFromDrawable(Drawable drawable) {
    Canvas canvas = new Canvas();
    Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
    canvas.setBitmap(bitmap);
    drawable.setBounds(0, 0, (int)getResources().getDimension(R.dimen._30sdp), (int)getResources().getDimension(R.dimen._30sdp));
    drawable.draw(canvas);
    return BitmapDescriptorFactory.fromBitmap(bitmap);
}

来源：https://stackoverflow.com/questions/35718103/how-to-specify-the-size-of-the-icon-on-the-marker-in-google-maps-v2-android

标签

android

google-maps

size

marker