我想知道如何使用地图视图在谷歌地图上获得我的当前位置。当我从一个地方走到另一个地方时,我在地图上的位置也会改变。它将实现由全球定位系统或网络供应商,但希望得到我的适当的当前位置。
最佳答案
必须实现location listener以获取纬度和经度数据,使用这些值设置google地图上的位置并使用标记来指示该位置
public class MyLocationListener implements LocationListener {
protected LocationManager lm;
public String message="Hello";
Location location;
private static final long MINIMUM_DISTANCE_CHANGE_FOR_UPDATES = 1;
private static final long MINIMUM_TIME_BETWEEN_UPDATES = 1000000;
Context mContext;
public MyLocationListener(Context mContext) {
// TODO Auto-generated constructor stub
this.mContext = mContext;
String context=Context.LOCATION_SERVICE;
lm = (LocationManager)mContext.getSystemService(context);
lm.requestLocationUpdates(LocationManager.PASSIVE_PROVIDER,MINIMUM_TIME_BETWEEN_UPDATES,MINIMUM_DISTANCE_CHANGE_FOR_UPDATES,this);
}
public void showCurrentLocation()
{
location=lm.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER);
if (location != null) {
message = String.format(
"Longitude: %1$s \n Latitude: %2$s",
location.getLongitude(), location.getLatitude()
);
t1.setText(message);
}
}
public void onLocationChanged(Location location)
{
/* String message = String.format(
"New Location \n Longitude: %1$s \n Latitude: %2$s",
location.getLongitude(), location.getLatitude()
);
t1.setText(message);
Toast.makeText(WinUirep.this,
"Location Changed !",
Toast.LENGTH_LONG).show();*/
}
public void onStatusChanged(String s, int i, Bundle b)
{
}
public void onProviderDisabled(String s)
{
}
public void onProviderEnabled(String s)
{
}}
location.getLatitude()从网络提供程序获取纬度,sames表示经度