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Android GPS获得经纬度并得到该坐标精确地址

 
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package cn.xx.currentlocation;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

import android.app.Activity;
import android.content.Context;
import android.location.Address;
import android.location.Criteria;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

public class CurrentLocation extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
LocationManager locationManager;
String serviceName = Context.LOCATION_SERVICE;
locationManager = (LocationManager) getSystemService(serviceName);
// String provider = LocationManager.GPS_PROVIDER;
// String provider = "gps";

Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setAltitudeRequired(false);
criteria.setBearingRequired(false);
criteria.setCostAllowed(true);
criteria.setPowerRequirement(Criteria.POWER_LOW);
String provider = locationManager.getBestProvider(criteria, true);

Location location = locationManager.getLastKnownLocation(provider);
updateWithNewLocation(location);
locationManager.requestLocationUpdates(provider, 2000, 10, locationListener);

}

private final LocationListener locationListener = new LocationListener() {
public void onLocationChanged(Location location) {
updateWithNewLocation(location);
}

public void onProviderDisabled(String provider) {
updateWithNewLocation(null);
}

public void onProviderEnabled(String provider) {
}

public void onStatusChanged(String provider, int status, Bundle extras) {
}
};

private void updateWithNewLocation(Location location) {
String latLongString;
TextView myLocationText;
myLocationText = (TextView) findViewById(R.id.myLocationText);
// try {
// Thread.sleep(0);//因为真机获取gps数据需要一定的时间,为了保证获取到,采取系统休眠的延迟方法
// } catch (InterruptedException e) {
// e.printStackTrace();
// throw new RuntimeException(e);
// }
if (location != null) {
double lat = location.getLatitude();
double lng = location.getLongitude();

Geocoder geocoder=new Geocoder(this);
// Geocoder geocoder = new Geocoder(this, Locale.CHINA);
List places = null;

try {
// Thread.sleep(2000);
places = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 5);
// Thread.sleep(2000);
Toast.makeText(CurrentLocation.this, places.size()+"", Toast.LENGTH_LONG).show();
System.out.println(places.size()+"");
} catch (Exception e) {
e.printStackTrace();
}

String placename = "";
if (places != null && places.size() > 0) {
// placename=((Address)places.get(0)).getLocality();
//一下的信息将会具体到某条街
//其中getAddressLine(0)表示国家,getAddressLine(1)表示精确到某个区,getAddressLine(2)表示精确到具体的街
placename = ((Address) places.get(0)).getAddressLine(0) + ", " + System.getProperty("line.separator")
+ ((Address) places.get(0)).getAddressLine(1) + ", "
+ ((Address) places.get(0)).getAddressLine(2);
}

latLongString = "纬度:" + lat + "/n经度:" + lng;
Toast.makeText(CurrentLocation.this, placename, Toast.LENGTH_LONG).show();
} else {
latLongString = "无法获取地理信息";
}
myLocationText.setText("您当前的位置是:/n" + latLongString);
}

}

又有其他项目,还没着手这个GPS功能,没来得及试验,感觉这段代码写得很好,有需要时再根据实际需要进一步优化

原文地址:http://www.eoeandroid.com/thread-56691-1-1.html

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