Andriod手机上显示定位信息

第一步 获取LocationManager

locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

第二部 获取可用的Location Provider

List providers =locationManager.getProviders(true);

if (providers.contains(LocationManager.GPS_PROVIDER)) {

provider =LocationManager.GPS_PROVIDER;

}else if (providers.contains(LocationManager.NETWORK_PROVIDER)) {

provider =LocationManager.NETWORK_PROVIDER;

}else {

Toast.makeText(this,"no location provider to use",Toast.LENGTH_SHORT).show();

return;

}

第三步 获取经纬度信息

Location location =locationManager.getLastKnownLocation(provider);

Log.d("location",location!=null?location.getLongitude()+"":"没有获取到地址信息");

if (location!=null){

        showLocation(location);

}

locationManager.requestLocationUpdates(provider,5000,1,locationListener);

第四步 将获取到的经纬度信息逆地理编码为地址信息

HttpClient httpClient =new DefaultHttpClient();

HttpGet httpGet =new HttpGet(url.toString());

httpGet.setHeader("Accept-Language","zh-CN");

try {

HttpResponse response =httpClient.execute(httpGet);

if (response.getStatusLine().getStatusCode() ==200){

HttpEntity entity =response.getEntity();

String response1 =EntityUtils.toString(entity,"utf-8");

response1 = response1.substring(29,response1.length()-1);

JSONObject jsonObject =new JSONObject(response1);

jsonObject = jsonObject.getJSONObject("result");

String address = jsonObject.getString("formatted_address");

Message message =new Message();

message.what =0 ;

message.obj =address;

handler.sendMessage(message);

}

private Handler handler =new Handler(){

@Override

    public void handleMessage(@NonNull Message msg) {

switch (msg.what){

case 0:

String response = (String) msg.obj;

positionTextView.setText(response);

break;

default:

break;

}

}

};