将Drawable转换为位图以更改Google Maps Android API v2中标记的颜色

Question

我正在将一个旧的应用程序从v1转换为v2,我的Marker图标的颜色有问题.我有一个基本的白色图标,它需要着色.

在v1中,我这样做了:

Drawable d = DrawableUtils.resizeImageToDrawable(
    MapViewFragment.mapviewActivity,
    Configuration.Display.getDrawableFix(i),
    Configuration.MapView.getWaypointIconWidth(),
    Configuration.MapView.getWaypointIconHeight());
d.setColorFilter(color, Mode.MULTIPLY);

overlay = new MyFplnFixListItimizedOverlay(d);

由于v2 Markers不接受Drawables的图标,我想将Drawable转换为Bitmap,如下所示:

Drawable d = DrawableUtils.resizeImageToDrawable(
    MapViewFragment.mapviewActivity,
    Configuration.Display.getDrawableFix(i),
    Configuration.MapView.getWaypointIconWidth(),
    Configuration.MapView.getWaypointIconHeight());
d.setColorFilter(color, Mode.MULTIPLY);

Bitmap icon = ((BitmapDrawable) d).getBitmap();

Marker marker = MapViewFragment.map.addMarker(new MarkerOptions()
    .position(point)
    .title(Integer.toString(fplnType))
    .visible(true)
    .icon(BitmapDescriptorFactory.fromBitmap(icon)));

但由于某种原因,它不起作用.图标保持白色.谁知道为什么？

提前致谢.

Answer 1

好的,这就是我在一天结束时的表现:

Drawable d = DrawableUtils.resizeImageToDrawable(
                    MapViewFragment.mapViewActivity,
                    Configuration.Display.getDrawableFix(i),
                    Configuration.MapView.getWaypointIconWidth(),
                    Configuration.MapView.getWaypointIconHeight());
d.setColorFilter(color, Mode.MULTIPLY);

Bitmap b = ((BitmapDrawable) d).getBitmap();
Canvas myCanvas = new Canvas(b);

int myColor = b.getPixel(0,0);
ColorFilter filter = new LightingColorFilter(myColor, color);

Paint pnt = new Paint();
pnt.setColorFilter(filter);
myCanvas.drawBitmap(b,0,0,pnt);

Marker marker = MapViewFragment.map.addMarker(new MarkerOptions()
    .position(point)
    .title(Integer.toString(fplnType))
    .visible(true)
    .icon(BitmapDescriptorFactory.fromBitmap(b)));