android mapview-附加到类似“的内容”；onZoom"；

我想为每个缩放级别更新在mapview上绘制的多边形。放大或缩小mapview时，如何获取通知

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BR

不幸的是，没有本机回调通知您缩放级别的更改。您可以做的是扩展本机地图视图，并在

onDraw

方法中查找缩放级别的更改：

public final class CustomMapView extends MapView
{
    private int lastZoomLevel = -1;


    @Override
    public void draw(Canvas canvas) 
    {
        if (isZoomChange()) 
        {
            lastZoomLevel = this.getZoomLevel();
            onZoomLevelChange(lastZoomLevel); //this would be your notification function
        }
        super.draw(canvas);
    }

    private boolean isZoomChange() 
    {
        return (getZoomLevel() != lastZoomLevel);
    }
}