我想知道是否有人能告诉我为什么在下面的代码中，mLat和mLon给我的错误说这个符号无法解决？
我很确定我已经在私人课程GPSCoords中正确定义了它们：
private class GPSCoords {
float mLat, mLon;
GPSCoords(float lat, float lon) {
mLat = lat;
mLon = lon;
}
}
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case PLACE_DIALOG_ID:
LayoutInflater layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View dialogLayout = layoutInflater.inflate(R.layout.fav_place_dialog, (ViewGroup) findViewById(R.id.root));
final TextView placeCoordinates = (TextView) dialogLayout.findViewById(R.id.TextView_FavPlaceCoords_Info);
final EditText placeName = (EditText) dialogLayout.findViewById(R.id.EditText_FavPlaceName);
placeName.setOnKeyListener(new View.OnKeyListener() {
public boolean onKey(View v, int keyCode, KeyEvent event) {
if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
String strPlaceName = placeName.getText().toString();
if ((strPlaceName != null) && (strPlaceName.length() > 0)) {
// Try to resolve string into GPS coords
resolveLocation(strPlaceName);
Editor editor = mGameSettings.edit();
editor.putString(GAME_PREFERENCES_FAV_PLACE_NAME, placeName.getText().toString());
editor.putFloat(GAME_PREFERENCES_FAV_PLACE_LONG, mFavPlaceCoords.mLon);
editor.putFloat(GAME_PREFERENCES_FAV_PLACE_LAT, mFavPlaceCoords.mLat);
editor.commit();
placeCoordinates.setText(formatCoordinates(mFavPlaceCoords.mLat, mFavPlaceCoords.mLon));
return true;
}
}
return false;
}
});
我有点难过。
由于
编辑：显示我定义mFavPlaceCoords的位置。另外，我将mFavPlaceCoords作为私有对象：
if (mGameSettings.contains(GAME_PREFERENCES_FAV_PLACE_NAME)) {
// Retrieve favorite place from preferences
strFavPlaceName = mGameSettings.getString(GAME_PREFERENCES_FAV_PLACE_NAME, "");
mFavPlaceCoords = new GPSCoords(mGameSettings.getFloat(GAME_PREFERENCES_FAV_PLACE_LAT, 0), mGameSettings.getFloat(GAME_PREFERENCES_FAV_PLACE_LONG, 0));
} else {
// No favorite place set, set coords to current location
strFavPlaceName = getResources().getString(R.string.settings_favplace_currentlocation); // We do not name this place ("here"), but use it as a map point. User can supply the name if
// they like
calculateCurrentCoordinates();
}