// 创建点击mark时的弹出泡泡
mPopView = super.getLayoutInflater()
.inflate(R.layout.popview, null);
mMapView.addView(mPopView, new MapView.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, null,
MapView.LayoutParams.TOP_LEFT));
mPopView.setVisibility(View.GONE);
}
}
@Override
protected void onPause() {
BMapApp app = (BMapApp) this.getApplication();
app.mBMapMan.getLocationManager().removeUpdates(mLocationListener);
mLocationOverlay.disableMyLocation();
mLocationOverlay.disableCompass(); // 关闭指南针
app.mBMapMan.stop();
super.onPause();
}
@Override
protected void onResume() {
BMapApp app = (BMapApp) this.getApplication();
// 注册定位事件，定位后将地图移动到定位点
app.mBMapMan.getLocationManager().requestLocationUpdates(
mLocationListener);
mLocationOverlay.enableMyLocation();
mLocationOverlay.enableCompass(); // 打开指南针
app.mBMapMan.start();
super.onResume();
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
}
class OverItemT extends ItemizedOverlay<OverlayItem> {
private List<OverlayItem> mGeoList = new ArrayList<OverlayItem>();
private Drawable marker;
private Context mContext;
private ArrayList<Trace> traces = new ArrayList<Trace>();
public OverItemT(Drawable marker, Context context, ArrayList<Trace> traces) {
super(boundCenterBottom(marker));
this.marker = marker;
this.mContext = context;
this.traces = traces;
// 用给定的经纬度构造GeoPoint，单位是微度 (度 * 1E6)
// 构造OverlayItem的三个参数依次为：item的位置，标题文本，文字片段
for (int i = 0; i < traces.size(); i++) {
int lat = new Integer(traces.get(i).getLatitude());
int lon = new Integer(traces.get(i).getLongitude());
String resName = traces.get(i).getResname();
GeoPoint p = new GeoPoint(lat, lon);
mGeoList.add(new OverlayItem(p, resName, i + resName));
populate(); // createItem(int)方法构造item。一旦有了数据，在调用其它方法前，首先调用这个方法
}
}
@Override
public void draw(Canvas canvas, MapView mapView, boolean shadow) {
// Projection接口用于屏幕像素坐标和经纬度坐标之间的变换
Projection projection = mapView.getProjection();
for (int index = size() - 1; index >= 0; index--) { // 遍历mGeoList
OverlayItem overLayItem = getItem(index); // 得到给定索引的item
String title = overLayItem.getTitle();
// 把经纬度变换到相对于MapView左上角的屏幕像素坐标
Point point = projection.toPixels(overLayItem.getPoint(), null);
// 可在此处添加您的绘制代码
Paint paintText = new Paint();
paintText.setColor(Color.BLUE);
paintText.setTextSize(15);
canvas.drawText(title, point.x - 30, point.y, paintText); // 绘制文本
}
super.draw(canvas, mapView, shadow);
// 调整一个drawable边界，使得（0，0）是这个drawable底部最后一行中心的一个像素
// 先所有点的经度转像素
ArrayList<Point> points = new ArrayList<Point>();
for (int i = 0; i < this.size(); i++) {
Point p = new Point();
OverlayItem overLayItem = getItem(i);
projection.toPixels(overLayItem.getPoint(), p);
points.add(p);
}
// 第二个画笔 画线
Paint paint = new Paint();
paint.setColor(Color.BLUE);
paint.setDither(true);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeJoin(Paint.Join.ROUND);
paint.setStrokeCap(Paint.Cap.ROUND);
paint.setStrokeWidth(4);
// 连接 所有点
Path path = new Path();
path.moveTo(points.get(0).x, points.get(0).y);
for (int i = 1; i < points.size(); i++) {
path.lineTo(points.get(i).x, points.get(i).y);
}
// 画出路径
canvas.drawPath(path, paint);
boundCenterBottom(marker);
}
@Override
protected OverlayItem createItem(int i) {
// TODO Auto-generated method stub
return mGeoList.get(i);
}
@Override
public int size() {
// TODO Auto-generated method stub
return mGeoList.size();
}