4
我已使用this中的代碼。我已經改變了一下。以下是我的代碼片段。問題是谷歌地圖沒有顯示我嘲笑的適當位置。模擬位置在Google地圖上不起作用
public class MockGpsProviderActivity extends Activity implements LocationListener {
public static final String LOG_TAG = "MockGpsProviderActivity";
private static final String MOCK_GPS_PROVIDER_INDEX = "GpsMockProviderIndex";
private MockGpsProvider mMockGpsProviderTask = null;
private Integer mMockGpsProviderIndex = 0;
/** Called when the activity is first created. */
/*
* (non-Javadoc)
*
* @see android.app.Activity#onCreate(android.os.Bundle)
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/** Use saved instance state if necessary. */
if (savedInstanceState instanceof Bundle) {
/** Let's find out where we were. */
mMockGpsProviderIndex = savedInstanceState.getInt(MOCK_GPS_PROVIDER_INDEX, 0);
}
/** Setup GPS. */
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
// if(locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){
// // use real GPS provider if enabled on the device
// locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
// }
// else if(!locationManager.isProviderEnabled(MockGpsProvider.GPS_MOCK_PROVIDER)) {
// otherwise enable the mock GPS provider
locationManager.addTestProvider(MockGpsProvider.GPS_MOCK_PROVIDER, false, false, false, false, true, true, true, Criteria.POWER_LOW,
Criteria.ACCURACY_FINE);
locationManager.setTestProviderEnabled(MockGpsProvider.GPS_MOCK_PROVIDER, true);
locationManager.setTestProviderStatus(LocationManager.GPS_PROVIDER, LocationProvider.AVAILABLE, null, System.currentTimeMillis());
// }
if (locationManager.isProviderEnabled(MockGpsProvider.GPS_MOCK_PROVIDER)) {
locationManager.requestLocationUpdates(MockGpsProvider.GPS_MOCK_PROVIDER, 0, 0, this);
/** Load mock GPS data from file and create mock GPS provider. */
try {
// create a list of Strings that can dynamically grow
List<String> data = new ArrayList<String>();
/**
* read a CSV file containing WGS84 coordinates from the 'assets' folder (The website http://www.gpsies.com offers downloadable
* tracks. Select a track and download it as a CSV file. Then add it to your assets folder.)
*/
InputStream is = getAssets().open("mock_gps_data.csv");
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
// add each line in the file to the list
String line = null;
while ((line = reader.readLine()) != null) {
data.add(line);
}
// convert to a simple array so we can pass it to the AsyncTask
String[] coordinates = new String[data.size()];
data.toArray(coordinates);
// create new AsyncTask and pass the list of GPS coordinates
mMockGpsProviderTask = new MockGpsProvider();
mMockGpsProviderTask.execute(coordinates);
} catch (Exception e) {
}
}
}
@Override
public void onDestroy() {
super.onDestroy();
// stop the mock GPS provider by calling the 'cancel(true)' method
try {
mMockGpsProviderTask.cancel(true);
mMockGpsProviderTask = null;
} catch (Exception e) {
}
// remove it from the location manager
try {
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.removeTestProvider(MockGpsProvider.GPS_MOCK_PROVIDER);
} catch (Exception e) {
}
}
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
// store where we are before closing the app, so we can skip to the location right away when restarting
savedInstanceState.putInt(MOCK_GPS_PROVIDER_INDEX, mMockGpsProviderIndex);
super.onSaveInstanceState(savedInstanceState);
}
@Override
public void onLocationChanged(Location location) {
// show the received location in the view
TextView view = (TextView) findViewById(R.id.text);
view.setText("index:" + mMockGpsProviderIndex + "\nlongitude:" + location.getLongitude() + "\nlatitude:" + location.getLatitude()
+ "\naltitude:" + location.getAltitude());
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
/** Define a mock GPS provider as an asynchronous task of this Activity. */
private class MockGpsProvider extends AsyncTask<String, Integer, Void> {
public static final String LOG_TAG = "GpsMockProvider";
public static final String GPS_MOCK_PROVIDER = LocationManager.GPS_PROVIDER;
/** Keeps track of the currently processed coordinate. */
public Integer index = 0;
@Override
protected Void doInBackground(String... data) {
// process data
for (String str : data) {
// skip data if needed (see the Activity's savedInstanceState functionality)
if (index < mMockGpsProviderIndex) {
index++;
continue;
}
// let UI Thread know which coordinate we are processing
publishProgress(index);
// retrieve data from the current line of text
Double latitude = null;
Double longitude = null;
Double altitude = null;
try {
String[] parts = str.split(",");
latitude = Double.valueOf(parts[0]);
longitude = Double.valueOf(parts[1]);
altitude = Double.valueOf(parts[2]);
} catch (NullPointerException e) {
break;
} // no data available
catch (Exception e) {
continue;
} // empty or invalid line
// translate to actual GPS location
Location location = new Location(GPS_MOCK_PROVIDER);
location.setLatitude(latitude);
location.setLongitude(longitude);
location.setAltitude(altitude);
location.setAccuracy(1);
location.setTime(System.currentTimeMillis());
location.setBearing(0F);
location.setSpeed(0.0F);
// show debug message in log
Log.d(LOG_TAG, location.toString());
// provide the new location
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.setTestProviderLocation(GPS_MOCK_PROVIDER, location);
// sleep for a while before providing next location
try {
Thread.sleep(200);
// gracefully handle Thread interruption (important!)
if (Thread.currentThread().isInterrupted())
throw new InterruptedException("");
} catch (InterruptedException e) {
break;
}
// keep track of processed locations
index++;
}
return null;
}
@Override
protected void onProgressUpdate(Integer... values) {
Log.d(LOG_TAG, "onProgressUpdate():" + values[0]);
mMockGpsProviderIndex = values[0];
}
}
}
它顯示的是什麼位置？這是你的實際位置還是看似隨機的東西？你是在物理設備上還是在仿真器上運行它？ – 2015-03-31 12:23:04
它在該路徑上顯示隨機位置。我在設備上運行。 – Sanket 2015-04-01 05:21:31