相关疑难解决方法(0)

我对地理编码器有一点问题是从地址获取纬度和纬度:

这是我的代码:

for (Garage g : XMLGarage) {
List<Address> address;
address = coder.getFromLocationName(
g.getAddress(), 5);
if (address != null) {
Address location = address.get(0);  
g.setLatitude(location.getLatitude());
g.setLongitude(location.getLongitude());
...

错误是:

08-18 14:28:56.026: WARN/System.err(359): java.io.IOException: Service not Available
08-18 14:28:56.026: WARN/System.err(359):     at 
android.location.Geocoder.getFromLocationName(Geocoder.java:178)
08-18 14:28:56.026: WARN/System.err(359):     at 
com.amt.android.garage.Garage.postData(Garage.java:269)
08-18 14:28:56.026: WARN/System.err(359):     at
com.amt.android.garage.GarageForm$2.onClick(GarageForm.java:86)
08-18 14:28:56.026: WARN/System.err(359):     at  
android.view.View.performClick(View.java:2485)
08-18 14:28:56.026: WARN/System.err(359):     at
android.view.View$PerformClick.run(View.java:9080)
08-18 14:28:56.036: WARN/System.err(359):     at  
android.os.Handler.handleCallback(Handler.java:587)
08-18 14:28:56.036: WARN/System.err(359):     at
android.os.Handler.dispatchMessage(Handler.java:92)
08-18 14:28:56.036: WARN/System.err(359):     at
android.os.Looper.loop(Looper.java:130)
08-18 14:28:56.036: WARN/System.err(359):     at 
android.app.ActivityThread.main(ActivityThread.java:3683) …

我知道有时google后端服务可能无法使用.

因此,解决方案可能是循环,直到我获得数据.

private class getLocationDetails extends AsyncTask<String, Void, String> {

    @Override
    protected String doInBackground(String... params) {

        Log.d("looping", "" + count + "");
        count++;
        double lat = Double.parseDouble(params[0]);
        double lng = Double.parseDouble(params[1]);
        List<Address> addresses = null;
        try {

            Geocoder gCoder = new Geocoder(ImageAndLocationActivity.this,
                    Locale.getDefault());
            addresses = gCoder.getFromLocation(lat, lng, 1);
            Address addr = addresses.get(0);
            user_country = addr.getCountryName();
            user_city = addr.getLocality();
            user_district = addr.getSubAdminArea();

            if (user_city == null) {

                user_city = user_district;
            }
        } catch (Exception e) {

            Log.e("Exception in getLocationDetails - ", …