百度地图API安卓版的GPS定位

来源：互联网发布：windows日志删除记录编辑：程序博客网时间：2024/04/30 16:50

在官方程序中略为提及，但显然不够清楚，幸好官方有DemoApp，特将此代码提出。

1 添加LocationListerner变量

LocationListener mLocationListener = null; // create时注册此listener，Destroy时需要Remove

2 在OnCreate中注册定位监听器事件

mLocationListener = new LocationListener() {public void onLocationChanged(Location location) {if (location != null) {String strLog = String.format("您当前的位置:\r\n" + "纬度:%f\r\n"+ "经度:%f", location.getLongitude(),location.getLatitude());TextView mainText = (TextView) findViewById(R.id.textview);mainText.setText(strLog);}if (location != null) {GeoPoint pt = new GeoPoint((int) (location.getLatitude() * 1e6),(int) (location.getLongitude() * 1e6));mMapView.getController().animateTo(pt);}}};

3 添加MyLocationOverlay变量

MyLocationOverlay mLocationOverlay = null;

4 在OnCreate中添加该层

mLocationOverlay = new MyLocationOverlay(this, mMapView);mMapView.getOverlays().add(mLocationOverlay);

5 最后在Activity重载两个函数

@Overrideprotected void onPause() {// TODO Auto-generated method stubHZBikeApp app = (HZBikeApp) this.getApplication();app.mBMapMan.getLocationManager().removeUpdates(mLocationListener);mLocationOverlay.disableMyLocation();mLocationOverlay.disableCompass(); // 关闭指南针app.mBMapMan.stop();// 停止地图服务super.onPause();}@Overrideprotected void onResume() {// TODO Auto-generated method stubHZBikeApp app = (HZBikeApp) this.getApplication();app.mBMapMan.getLocationManager().requestLocationUpdates(mLocationListener);mLocationOverlay.enableMyLocation();mLocationOverlay.enableCompass(); // 打开指南针app.mBMapMan.start();// 恢复地图服务super.onResume();}