Android Studio Location API实现类签名

Question

大家如何更改类签名以实现googleapiclient？ 如果单击图像，它将显示该教程，但没有清楚显示该怎么做。 我不明白它说何时实施，因为我不知道怎么做？ 有人可以帮忙吗？

这是我的代码：

public class MainActivity extends ActionBarActivity {
    //private LocationManager locationManager;
    private Location currentLocation;
    private TextView locationText;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
        locationText = (TextView) findViewById(R.id.textView1);
    }

    private void updateDisplay(){
        if (currentLocation==null){
            locationText.setText("determining your location...");
        } else {
            locationText.setText(
                    String.format("Your location:\n%2f, %.2f", currentLocation.getLatitude(),
                            currentLocation.getLongitude()));

        }
    }

    private LocationListener mListener = new LocationListener(){
        @Override
        public void onLocationChanged(Location location){
            currentLocation=location;
            updateDisplay();
        }

        @Override
        public void onProviderDisabled(String provider){
        }

        @Override
        public void onProviderEnabled(String provider){
        }

        @Override
        public void onStatusChanged(String provider, int status, Bundle extras){
        }
    };

    @Override
    public void onResume(){
        super.onResume();
        //currentLocation = locationManager.getLastKnownLocation(locationManager.GPS_PROVIDER);
        updateDisplay();
        //locationManager.requestLocationUpdates(locationManager.GPS_PROVIDER, 0, 0, mListener);
    }

    @Override
    public void onPause(){
        super.onPause();
        //locationManager.removeUpdates(mListener);
    }

Answer 1

如何更改类签名以实现googleapiclient？

Add将implements GoogleApiClient.ConnectionCallbacks到您的类，并实现它所需的方法。