座標を特定の精度でフェッチし、座標を取得した場合に別のアクティビティを起動する非同期タスクを実行したいと考えています。
ここで、設定された精度で座標を取得しない場合、非同期タスクがそれ自体を破壊し (位置の更新などを削除)、緯度/経度のデフォルト値が渡されるように時間を設定したいと考えています。
私はこれを使用してみました:
new GetGPShotfix().execute().get(1, TimeUnit.MINUTES);この非同期のタイムアウトを 1 分間設定してから、この非同期実行呼び出しの下の次の行/タスクに進みます。
しかし、私の場合、Async によって設定されたタイムアウトを待たずに次の行にスキップします。
どうすれば思いどおりに実行できますか? 私もスレッドを使用してみjoin()ましたが、どうやら結果は同じでした:(
更新:これが私のコードです(gpshotfix() Async用):
private class GetGPShotfix extends AsyncTask<Void, Void, Void> {
// ProgressDialog progressDialogGPS;
@Override
protected void onPreExecute() {
super.onPreExecute();
Log.i("GPSfixer", "Ready to get GPS Hotfix");
}
@Override
protected Void doInBackground(Void... params) {
try {
LocationRetriever myLoc = new LocationRetriever();
// myLoc.getUserLoc();
//if (gotLoc == 0 && (firstLoc.getAccuracy() > 10)) {
if (gotLoc == 0) {
myLoc.getUserLoc();
}
} catch (Exception e) {
Log.i("GPSfixer", "GPS Hotfix Failed!", e);
}
finally {
Log.i("GPSfixer", "Get GPS Hotfix Completed...");
}
return null;
}
@Override
protected void onCancelled() {
Log.i("GPSfixer", "Get GPS Hotfix Cancelled");
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
Log.i("GPSfixer", "GPS Hotfix cycle completed");
System.out.println("Lon :" + myCurrentLon + "Lon2: " + finalLonNow);
System.out.println("Lat :" + myCurrentLat + "Lat2: " + finalLatNow);
//pDialog2.dismiss();
// progressDialogGPS.dismiss();
}
}
public class LocationRetriever {
final LocationManager locationManager = (LocationManager) StoreSelection.this.getSystemService(Context.LOCATION_SERVICE);
final LocationListener locationListener = new LocationListener() {
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),
provider + " is disabled!", Toast.LENGTH_SHORT).show();
Toast.makeText(getApplicationContext(),
"Please standby..enabling " + provider,
Toast.LENGTH_SHORT).show();
// explicitly enable GPS
Intent enableGPS = new Intent("android.location.GPS_ENABLED_CHANGE");
enableGPS.putExtra("enabled", true);
sendBroadcast(enableGPS);
// explictly disable GPS
/*
* Intent intent = new
* Intent("android.location.GPS_ENABLED_CHANGE");
* intent.putExtra("enabled", false); sendBroadcast(intent);
*/
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),
provider + " is enabled..", Toast.LENGTH_SHORT).show();
}
public void onStatusChanged(String provider, int status,
Bundle extras) {
// TODO Auto-generated method stub
/*
* System.out.println("val of status: " + status + " provider: "
* + provider);
*/
if (status == 1) {
Toast.makeText(getApplicationContext(),
provider + " is enabled & available..",
Toast.LENGTH_SHORT).show();
System.out.println(provider + " is NOT available!");
} else {
System.out.println(provider + " is NOT available!");
}
/* progressDialogGPS.dismiss(); */
}
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
// ORIG CODE --BELOW--
// moved lat/lon vars to top ^
myCurrentLon = location.getLongitude();
myCurrentLat = location.getLatitude();
firstLoc = location;
myCurrentLon = Double.parseDouble(new DecimalFormat("##.#########")
.format(myCurrentLon));
myCurrentLat = Double.parseDouble(new DecimalFormat("##.#########")
.format(myCurrentLat));
/*Toast.makeText(getApplicationContext(),
myCurrentLat + " " + myCurrentLon, Toast.LENGTH_SHORT)
.show();*/
System.out.println(myCurrentLat + " " + myCurrentLon);
float acc=location.getAccuracy();
/*Toast.makeText(getApplicationContext(), "Acc.: " + acc,Toast.LENGTH_SHORT).show();*/
// --
// get best out of 2 locs. --BEGINS--
/*
* makeUseOfNewLocation(location);
*
* if(currentBestLocation == null){ currentBestLocation =
* location; }
*/
if (myCurrentLon != null && myCurrentLat != null && (firstLoc.getAccuracy() <= 10)) { // added
// chk
// for
// online..
gotLoc = 1;
System.out.println("OK GOTLOC == 1 !");
System.out.println("Got your Current Location..disabling GPS to save Battery Power..");
Toast.makeText(getApplicationContext(), "Got your Current Location..disabling GPS to save Battery Power..", Toast.LENGTH_SHORT).show();
// removing updates
// locationManager.removeUpdates(locationListener);
// explicitly turning off GPS
Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE");
intent.putExtra("enabled", false);
sendBroadcast(intent);
System.out.println("GPS disabled!");
finalLatNow = myCurrentLat;
finalLonNow = myCurrentLon;
//
// if(gotLoc == 0){
if (myCurrentLon != null
&& myCurrentLat != null && (firstLoc.getAccuracy() <= 10)) {
// locationManager.removeUpdates(locationListener);
gotLoc = 1;
Intent i = new Intent(StoreSelection.this, LastVisitDetails.class);
i.putExtra("currUsrLon", myCurrentLon); // 2nd
i.putExtra("currUsrLat", myCurrentLat); // 1st
i.putExtra("storeID", selStoreID);
i.putExtra("selStoreName", selStoreName);
i.putExtra("imei", uuid);
i.putExtra("date", userDate);
runOnUiThread(new Runnable() {
public void run() {
try {
// stuff here
pDialog2.dismiss();
} catch (Exception e) {
e.printStackTrace();
}
}
});
System.out.println("--Removing Loc. Updates--");
remUpdates();
syncTIMESTAMP = System.currentTimeMillis();
Date dateobj = new Date(syncTIMESTAMP);
SimpleDateFormat df = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
fullFileName1 = df.format(dateobj);
dbengine.open();
dbengine.UpdateStoreStartVisit(selStoreID, fullFileName1);
dbengine.close();
startActivity(i);
finish();
} else {
if (myCurrentLon == null && myCurrentLat == null) {
// alert + GPS not locking on..do something()
} else {
}
/*if (!isOnline()) {
// alert + not online...do something()
showNoConnAlert();
} else {
}*/
}
//
/*
* } else{}
*/
} else {
System.out.println("INSIDE ELSE -- GOTLOC");
}
}
};
// locationManager.requestLocationUpdates(locationManager.getBestProvider(new
// Criteria(), true), 2000, 4, locationListener);
// enable gps everytime we request location update
/*
* Intent enableGPS = new Intent("android.location.GPS_ENABLED_CHANGE");
* enableGPS.putExtra("enabled", true); sendBroadcast(enableGPS);
*/
// ** ORIG Grequest location updates from GPS string
/*
* locationManager.requestLocationUpdates(locationManager.GPS_PROVIDER,
* ONE_MIN, 4, locationListener);
*/
// ** now remove updating of co-ordinates
// locationManager.removeUpdates(locationListener);
/*public Location getBestLoc(){
if(firstLoc.getAccuracy() <= newLoc.getAccuracy() && newLoc.getAccuracy() <= 10) {
return firstLoc;
}
else if(newLoc.getAccuracy() <= firstLoc.getAccuracy() && newLoc.getAccuracy() <= 10){
return newLoc;
}
else {
return newLoc;
}
}*/
void getUserLoc() {
if (gotLoc == 1 && (firstLoc.getAccuracy() <= 10)) {
locationManager.removeUpdates(locationListener);
} else {
}
final Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setHorizontalAccuracy(Criteria.ACCURACY_FINE);
// criteria.setVerticalAccuracy(Criteria.NO_REQUIREMENT);
criteria.setAltitudeRequired(false);
// criteria.setBearingAccuracy(Criteria.NO_REQUIREMENT);
criteria.setBearingRequired(false);
criteria.setCostAllowed(true);
criteria.setPowerRequirement(Criteria.POWER_HIGH);
runOnUiThread(new Runnable() {
public void run() {
try {
// stuff here
/*
* progressDialogGPS = ProgressDialog.show(_activity,
* null, null);
* progressDialogGPS.setContentView(R.layout.loader);
* progressDialogGPS
* .getWindow().setType(WindowManager.LayoutParams
* .TYPE_KEYGUARD_DIALOG);
*/
/*locationManager
.requestLocationUpdates(locationManager
.getBestProvider(criteria, true),
TEN_SECS, 4, locationListener);*/
locationManager.requestLocationUpdates(locationManager.GPS_PROVIDER, 0l, 0.0f, locationListener);
// remove updates #
if (gotLoc == 1 && (firstLoc.getAccuracy() <= 10)) {
locationManager.removeUpdates(locationListener);
} else {
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
/*
* try { Thread.currentThread().sleep(2000); } catch
* (InterruptedException e) { // TODO Auto-generated catch block
* e.printStackTrace(); }
*/
}
void remUpdates() {
//if(firstLoc.getAccuracy() <= 10){
locationManager.removeUpdates(locationListener);
//}
//else {}
}
}
どんな助けでもかなり..