我正在尝试使用新的谷歌位置服务更新旧教程。我直接使用谷歌教程中的代码,但行 mLocationClient = new LocationClient(this,this,this);返回错误 构造函数 LocationClient(RunFragment, RunFragment, RunFragment) 未定义
我的代码和教程之间的唯一区别是我在片段中的 onCreateView 中运行它,而不是从 Activity 中运行。有什么建议我可以纠正这个问题吗?谢谢。
public class RunFragment extends Fragment implements
位置监听器,
GooglePlayServicesClient.ConnectionCallbacks,
GooglePlayServicesClient.OnConnectionFailedListener {
private Button mStartButton, mStopButton;
private TextView mStartedTextView, mLatitudeTextView,
mLongitudeTextView, mAltitudeTextView, mDurationTextView;
// A request to connect to Location Services
private LocationRequest mLocationRequest;
// Stores the current instantiation of the location client in this object
private LocationClient mLocationClient;
// Handle to SharedPreferences for this app
SharedPreferences mPrefs;
// Handle to a SharedPreferences editor
SharedPreferences.Editor mEditor;
/*
* Note if updates have been turned on. Starts out as "false"; is set to "true" in the
* method handleRequestSuccess of LocationUpdateReceiver.
*
*/
boolean mUpdatesRequested = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRetainInstance(true);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_run, container, false);
mStartedTextView = (TextView)view.findViewById(R.id.run_startedTextView);
mLatitudeTextView = (TextView)view.findViewById(R.id.run_latitudeTextView);
mLongitudeTextView = (TextView)view.findViewById(R.id.run_longitudeTextView);
mAltitudeTextView = (TextView)view.findViewById(R.id.run_altitudeTextView);
mDurationTextView = (TextView)view.findViewById(R.id.run_durationTextView);
mStartButton = (Button)view.findViewById(R.id.run_startButton);
mStopButton = (Button)view.findViewById(R.id.run_stopButton);
// Create a new global location parameters object
mLocationRequest = LocationRequest.create();
/*
* Set the update interval
*/
mLocationRequest.setInterval(LocationUtils.UPDATE_INTERVAL_IN_MILLISECONDS);
// Use high accuracy
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
// Set the interval ceiling to one minute
mLocationRequest.setFastestInterval(LocationUtils.FAST_INTERVAL_CEILING_IN_MILLISECONDS);
// Note that location updates are off until the user turns them on
mUpdatesRequested = false;
// Open Shared Preferences
mPrefs = getActivity().getSharedPreferences(LocationUtils.SHARED_PREFERENCES, Context.MODE_PRIVATE);
// Get an editor
mEditor = mPrefs.edit();
/*
* Create a new location client, using the enclosing class to
* handle callbacks.
*/
mLocationClient = new LocationClient(this,this,this);
//updateUI();
return view;
}
@Override
public void onConnectionFailed(ConnectionResult result) {
// TODO Auto-generated method stub
}
@Override
public void onConnected(Bundle connectionHint) {
// TODO Auto-generated method stub
}
@Override
public void onDisconnected() {
// TODO Auto-generated method stub
}
@Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
}
}