MapActivity.java

package com.arrownock.opensource.arrownockers.utils;

import android.app.Activity;
import android.os.Bundle;

import com.arrownock.opensource.arrownockers.R;
import com.baidu.mapapi.BMapManager;
import com.baidu.mapapi.map.LocationData;
import com.baidu.mapapi.map.MapController;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.MyLocationOverlay;
import com.baidu.platform.comapi.basestruct.GeoPoint;

// 显示定位点
public class MapActivity extends Activity {

	BMapManager mBMapMan = null;
	MapView mMapView = null;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		double latitude = getIntent().getDoubleExtra("latitude", 0.0);
		double longitude = getIntent().getDoubleExtra("longitude", 0.0);

		mBMapMan = new BMapManager(getApplication());
		mBMapMan.init("6D31A26E610B861CD57E7EAA2B52CA39B72D58DC", null);
		// 注意：请在试用setContentView前初始化BMapManager对象，否则会报错
		setContentView(R.layout.activity_map);
		mMapView = (MapView) findViewById(R.id.bmapsView);
		mMapView.setBuiltInZoomControls(true);
		// 设置启用内置的缩放控件
		MapController mMapController = mMapView.getController();
		// 得到mMapView的控制权,可以用它控制和驱动平移和缩放
		GeoPoint point = new GeoPoint((int) (latitude * 1E6),
				(int) (longitude * 1E6));
		// 用给定的经纬度构造一个GeoPoint，单位是微度 (度 * 1E6)
		mMapController.setCenter(point);// 设置地图中心点
		mMapController.setZoom(15);// 设置地图zoom级别

		MyLocationOverlay myLocationOverlay = new MyLocationOverlay(mMapView);
		LocationData locData = new LocationData();
		// 手动将位置源置为天安门，在实际应用中，请使用百度定位SDK获取位置信息，要在SDK中显示一个位置，需要
		// 使用百度经纬度坐标（bd09ll）
		locData.latitude = latitude;
		locData.longitude = longitude;
		locData.direction = 2.0f;
		myLocationOverlay.setData(locData);
		mMapView.getOverlays().add(myLocationOverlay);
		mMapView.refresh();
		mMapView.getController().animateTo(point);
	}

	@Override
	protected void onDestroy() {
		mMapView.destroy();
		if (mBMapMan != null) {
			mBMapMan.destroy();
			mBMapMan = null;
		}
		super.onDestroy();
	}

	@Override
	protected void onPause() {
		mMapView.onPause();
		if (mBMapMan != null) {
			mBMapMan.stop();
		}
		super.onPause();
	}

	@Override
	protected void onResume() {
		mMapView.onResume();
		if (mBMapMan != null) {
			mBMapMan.start();
		}
		super.onResume();
	}

}