在我的位置改变后，我需要指导来上课。谁能帮助我。我认为问题在于以下代码：
Intent i = new Intent(getApplicationContext(), CreateNewProduct.class);
startActivity(i);
这是整个代码：
（当我的位置发生变化时，我在这里设置了一些条件，这也是我必须在下面调用下一个类的部分。）
class myLocationlistener implements LocationListener {
@Override
public void onLocationChanged(Location location) {
if (location != null) {
double pLong = location.getLongitude();
double pLat = location.getLatitude();
textLat.setText(Double.toString(pLat));
textLong.setText(Double.toString(pLong));
Intent i = new Intent(getApplicationContext(), CreateNewProduct.class);
startActivity(i);
}
}
@Override
public void onProviderDisabled(String provider) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
}
（要调用的类）
class CreateNewProduct extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(Sample.this);
pDialog.setMessage("Sending Location");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
/**
* Creating product
* */
protected String doInBackground(String... args) {
String latitude = textLong.getText().toString();
String longitude = textLat.getText().toString();
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("latitude", latitude));
params.add(new BasicNameValuePair("longitude", longitude));
// getting JSON Object
// Note that create product url accepts POST method
JSONObject json = jsonParser.makeHttpRequest(url_create_product,
"POST", params);
// check log cat fro response
Log.d("Create Response", json.toString());
// check for success tag
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
Toast.makeText(getBaseContext(), "Success",
Toast.LENGTH_SHORT).show();
} else {
// failed to create product
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog once done
pDialog.dismiss();
}
}