最近在搞点击按钮实现ＧＰＳ定位的 新手可以看一下 避免一些弯路
imgbtn4 = (ImageView)findViewById(R.id.cd4); imgbtn4.setOnClickListener(new Button.OnClickListener() { //注册一个LoacationManager LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); public void onClick(View arg0) { // TODO Auto-generated method stub //注册一个周期性的位置更新 Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); WithNewLocation(location); locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 0, locationListener); } }); 将定位单独设置成一个函数写OnCreat 的外边
public void WithNewLocation(Location location){ if(location==null) { return ; } //取得经度和纬度 Double geoLat=location.getLatitude()*1E6;//这儿 将Double换成double会报错 Double geoLng=location.getLongitude()*1E6; //将其转换为int型 GeoPoint point=new GeoPoint(geoLat.intValue(),geoLng.intValue()); mMapController.animateTo(point); } 监听器的实现 private final LocationListener locationListener = new LocationListener() { // //当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发 public void onLocationChanged(Location location) { // log it when the location changes if (location != null) { Log.i("SuperMap", "Location changed : Lat: " + location.getLatitude() + " Lng: " + location.getLongitude()); } } public void onProviderDisabled(String provider) { // Provider被disable时触发此函数，比如GPS被关闭 } public void onProviderEnabled(String provider) { // Provider被enable时触发此函数，比如GPS被打开 } public void onStatusChanged(String provider, int status, Bundle extras) { // Provider的转态在可用、暂时不可用和无服务三个状态直接切换时触发此函数 } };