How can I replace the Compass image of MyLocationO

2019-09-07 03:53发布

I want to use my image to replace the Compass image of MyLocationOverlay, how can i implement?

标签: android maps
2条回答
小情绪 Triste *
2楼-- · 2019-09-07 03:58

I think you can only replace the Marker (the blue, pulsating dot) which displays the location, please see a related StackOverflow question. Hope this helps, even if the issue seems a bit old.

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兄弟一词,经得起流年.
3楼-- · 2019-09-07 04:08

Subclass MyLocationOverlay, override the method drawCompass(Canvas canvas, float bearing), and draw your own bitmap(s) onto the canvas object:

@Override
protected void drawCompass(Canvas canvas, float bearing) {

    Resources res = _context.getResources();
    Bitmap myCompassPointer = BitmapFactory.decodeResource(res, R.drawable.compass_pointer);

    float rotationAngle = -bearing + 360f;
    Matrix rotation = new Matrix();
    rotation.preRotate(rotationAngle, myCompassPointer.getWidth()/2.0f, myCompassPointer.getHeight()/2.0f);

    canvas.drawBitmap(myCompassPointer, rotation, null);

    // don't call super if you don't want the default compass image:
    //super.drawCompass(canvas, bearing);

}
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