Question

我需要添加一个弹出窗口，在我添加的标记之上显示城市名称（自己的描述），下面是我的标记代码。任何帮助将不胜感激。

private MapView osm;
osm = (MapView) findViewById(R.id.mapView);

    public void addMarker() {

            GeoPoint colombo = new GeoPoint(6.9271, 79.8612);

            Marker startMarker = new Marker(osm);
            startMarker.setPosition(colombo);
            osm.getOverlays().add(startMarker);
            startMarker.setIcon(getResources().getDrawable(R.drawable.black));
    }

Answer 1

startMarker.setTitle("title") 应该做的...你可以通过在startMarker上调用showInfoWindow()方法手动显示它。

如果您想拥有自己的弹出窗口布局，可以继承InfoWindow。

Answer 2

MarkerWithLabel 对其进行分类：

public class MarkerWithLabel extends Marker {
Paint textPaint = null; 
String mLabel = null; 
float rotation = 0.0f;

public MarkerWithLabel( MapView mapView, String label) {
    super( mapView);
    mLabel = label; 
    textPaint = new Paint();
    textPaint.setColor( Color.RED);
    textPaint.setTextSize( WaypointActivity.textSizeCanvas25sp);
    textPaint.setAntiAlias(true);
    textPaint.setTextAlign(Paint.Align.LEFT);
    setTitle( label);
}
public void draw( final Canvas c, final MapView osmv, boolean shadow) {
    draw( c, osmv); 
}
public void draw( final Canvas c, final MapView osmv) {
    super.draw( c, osmv, false); 
    Point p = this.mPositionPixels;  // already provisioned by Marker
    if( rotation <= -1 || rotation >= 1) { // could be left out
        c.save();
        c.rotate( rotation, p.x, p.y);
        c.drawText( getTitle(), p.x, p.y+20, textPaint);
        c.restore();
    } else { 
        c.drawText( getTitle(), p.x, p.y+20, textPaint); 
    }
}
}

查找所有MarkerWithLabel实例很容易：

   marker = new MarkerWithLabel( mv, label);
marker.setTitle( label);

在我的自定义OSM地图中的标记顶部添加弹出/片段/标题

2 个答案: