public void showCityAtMap(MapView mapView) {
        if (aMap == null) {
            aMap = mapView.getMap();
        }
        aMap.clear();
        aMap.moveCamera(CameraUpdateFactory.zoomTo(5));
        ArrayList<WeatherDataInfo> allCity = (ArrayList<WeatherDataInfo>) DataSupport.findAll(WeatherDataInfo.class);
        for (WeatherDataInfo weatherDataInfo : allCity) {
            LatLng latLng = new LatLng(weatherDataInfo.getLat(), weatherDataInfo.getLon());
            aMap.addMarker(new MarkerOptions().position(latLng).draggable(false).snippet(""+weatherDataInfo.getPosition())
                    .icon(BitmapDescriptorFactory.fromView(
                                    getInfoWindow(weatherDataInfo.getName(),
                                            weatherDataInfo.getTmp(),
                                            weatherDataInfo.getIcon()))));
        }
        aMap.setOnMarkerClickListener(new AMap.OnMarkerClickListener() {
            @Override
            public boolean onMarkerClick(Marker marker) {
                listener.onWindowClick(Integer.parseInt(marker.getSnippet()));
                return true;
            }
        });
    }

主要是利用addMarker方法添加一个Marker，但Marker的样式为自定义的View：

    public View getInfoWindow(String city, String temp, int icon) {
        View view = View.inflate(BaseUtils.getContext(), R.layout.marker_info_layout, null);
        TextView tvCity = (TextView) view.findViewById(R.id.tv_city);
        TextView tvTemp = (TextView) view.findViewById(R.id.tv_temp);
        ImageView ivIcon = (ImageView) view.findViewById(R.id.iv_icon);
        tvCity.setText(city);
        tvTemp.setText(temp);
        ivIcon.setImageResource(icon);
        return view;
    }

布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:background="@drawable/custom_info_bubble"
    android:orientation="vertical">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="2"
        android:gravity="center">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/tv_city"
            android:textSize="20sp"
            android:textColor="@color/colorAccent"
            />
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="3"
        android:orientation="horizontal"
        android:gravity="center">
        <ImageView
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:id="@+id/iv_icon"
            />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/tv_temp"
            android:textColor="@android:color/black"
            android:textSize="26sp"/>
    </LinearLayout>
</LinearLayout>