This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
Enable GPS programatically like Tasker
Ok, I know there is same question asked before but all answer is "NO". It is proven that enable GPS can be done in coding. Don't believe? try out an application called "LOOKOUT". I believe there is some workaround in order to achieve this.
I had read through lookout AndroidManifest.xml, what i found out they only use
<uses-permission android:name="android.permission.WRITE_SETTINGS"/>
Anyone have idea how they managed to do this? what is the secret behind? I personally managed to do this only if the application is install as system app and also require two permission
<uses-permission android:name="android.permission.WRITE_SETTINGS"/>
<uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS"/>
My Code:
Settings.Secure.setLocationProviderEnabled(getContentResolver(), LocationManager.GPS_PROVIDER, true);
thank you.
According to this post on the Lookout support forums, they are unable to programmatically enable GPS.
If Lookout could enable the GPS receiver remotely, then use the service, then turn it off – we would, but unfortunately there is no “disable GPS for everything other than Lookout” and if you have disabled the GPS receiver, no application can make use of it. Enabling the GPS receiver requires a user to do it manually.
Edit: It looks like in the new version of Lookout they are most likely now exploiting a security flaw to accomplish this. It is not guaranteed to continue to work, but according to an open Android bug report from April 2010, code similar to the following will successfully programmatically enable/disable GPS (at least until the flaw is fixed):
private void toggleGPS(boolean enable) {
String provider = Settings.Secure.getString(getContentResolver(),
Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
if(provider.contains("gps") == enable) {
return; // the GPS is already in the requested state
}
final Intent poke = new Intent();
poke.setClassName("com.android.settings",
"com.android.settings.widget.SettingsAppWidgetProvider");
poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
poke.setData(Uri.parse("3"));
context.sendBroadcast(poke);
}
Also, see the question "Enable GPS programmatically like Tasker" and the XDA thread mentioned there for more discussion on how people have used this method.
If you do use this method, you should make it clear to potential users of your application, since this is a HUGE potential privacy concern.
Related
If we use this code we see a message: searching for GPS. However, the GPS symbol is merely shown; GPS doesn't actually work:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE");
intent.putExtra("enabled", true);
this.sendBroadcast(intent);
}
Why isn't it working ? And how to make it work correctly ?
That's not allowed anymore. If you take a look at this bug report, this hack was subverted in Android 4.4. It still works on older OS versions, though you shouldn't be using it anywhere now. To quote that report:
This doesn't work ... however, it can cause stuff to react as if the GPS status changed -- for example, the HTC One S will show the GPS icon in the status bar, even though the GPS is still disabled.
That explains why you can see the GPS icon even though it isn't actually ON. Now as for why you can't do that ...
Android's GPS technology periodically sends location data to Google even when no third-party apps are actually using the GPS function. In many Western countries this is seen as a major violation of privacy. That's why Google made it mandatory to get the user's consent before using the GPS function. The following dialog is seen whenever the user turns GPS on:
And hence it is no longer possible to programmatically change the GPS settings, as by necessity it requires the user's permission. What the programmer can do is direct the user to the GPS settings by calling
startActivity(context, new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS));
and let the user make a choice.
As an interesting point, if you try sending the GPS_ENABLED_CHANGE broadcast on the new OS versions, you get a
java.lang.SecurityException: Permission Denial:
not allowed to send broadcast android.location.GPS_ENABLED_CHANGE
error. As you can see, its a SecurityException with a permission denial message.
We all know about that GPS Issues on Android.
How do we create the same turnOnGps Function Bellow to a NETWORK_PROVIDER, I want turn on Both.
private void turnGPSOn(){
String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
if(!provider.contains("gps")){
final Intent poke = new Intent();
poke.setClassName("com.android.settings","com.android.settings.widget.SettingsAppWidgetProvider"); poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
poke.setData(Uri.parse("3"));
sendBroadcast(poke);
} }
Just adding onto what CommonsWare mentioned, that method only works on Android versions of 2.2 and below.
However, you can use the, simple, code below:
startActivity(new Intent("android.settings.LOCATION_SOURCE_SETTINGS"));
This will take the user directly to the screen where they can enable/disable Location based options.
Refer here (docs), for more settings
Hope this helps
Fortunately, the script-kiddie technique you cite above does not work on modern versions of Android. You cannot enable or disable any location provider yourself, for blindingly obvious privacy reasons. Please allow the user to enable or disable location providers through the OS-supplied mechanisms (Settings, Power Control app widget, etc.).
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Enable GPS programatically like Tasker
All,
I seen most of the answers in this forum that we CANT turn on gps programmatic ally. I am wondering in some of the applications available in Android market, how do they do? I tried most of the things explained in this forum, it always gives a prompt to the user to enable the Location based services.
Any other thoughts?
Thanks,
Ramesh
Not sure what you mean by "turn it on". Do you mean enable or disable it? This thread discusses some ways to enable or disable it by exploiting bugs: How can I enable or disable the GPS programmatically on Android?. I wouldn't use this method though, since it won't work on devices where the bug has been fixed. Far better to forward the user to the settings app and let them enable gps.
Do you mean to turn it on or off to use it, assuming it's been enabled? You don't need to do that. Simply call LocationManager.requestLocationUpdates() with the right location provider, and the system will turn it on for you.
Have you looked here?
http://developer.android.com/guide/topics/location/strategies.html
What you can do is assert what type of location provider is enabled, check if it is GPS, if not add this to prompt the user to turn on GPS (be sure to run a long Toast to let the user know to enable GPS location and to hit the back button once enabled):
ComponentName intentComponent = new ComponentName("com.android.settings", "com.android.settings.LocationSettings");
Intent mainIntent = new Intent("android.intent.action.MAIN");
mainIntent.setComponent(intentComponent);
startActivity(mainIntent);
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
ICS Android enable gps programmatically? [closed using an alternative approach]
I was using the code below to enable and disable GPS programmatically and worked perfectly in 2.2 and 2.3.
Intent i = new Intent();
i.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
i.addCategory(Intent.CATEGORY_ALTERNATIVE);
i.setData(Uri.parse("3"));
context.sendBroadcast(i);
However, when trying to use the ICS (4.0) realized it did not work. Then I discovered that it was a bug as link below.
http://code.google.com/p/android/issues/detail?id=7890
I believe we have fixed in ICS.
Could anyone tell me if there is an alternative to solve this in ICS?
I think an OS ridiculous "open source" have so many restrictions. I'm already starting to regret having opted to develop our applications on Android.
I believe it is a security feature that you cannot programmatically alter the GPS state.
Why does open source mean it shouldn't have restrictions? I'm confused. Open source just means you have access to the source code.
On a personal note, developing for Android was much less painful than developing for iOS using Cocoa Touch.
EDIT:
Try using this to let the user know they need to enable GPS.
(source: http://manishkpr.webheavens.com/android-syste-gps-setting-intent/)
private void checkGPS(){
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000L,1.0f, this);
boolean isGPS = locationManager.isProviderEnabled (LocationManager.GPS_PROVIDER);
if(isGPS){
showToast("Gps On");
}else{
startActivityForResult(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS), 0);
}
}
Those restrictions are because of security issues. You should not try to achieve this case because it works now, but in next few days can be fixed - for example custom roms.
The best solution to manage GPS is to open Android's GPS preferences and let user to enable/disable GPS manually.
I'd like to know if it possible to enable and disable Location Services programatically in Android 4.0?
I've found several approaches how to do this for previous versions of Android (for instance, this is the most popular link). But these approach does not work for Android ICS.
Also, I understand that an application should not do this but, for instance, default widget does this.
Can anybody clarify if it is possible and how to achieve this?
In a tiny app I have developed, I turn off the gps by just disabling the location on the MyLocationOverlay. Of course, this will work only if you are using maps from Google as that class belongs to the Google API's.
myLocationOverlay.disableMyLocation();
I place the line on the onStop() method and only if it is currently enabled. And every time my app goes to the background, the GPS turns automatically off.
Hope it helps.
You can enable and disable gps device but users must confirm in setting widget.
The solution in this topic.
LocationManager L = (LocationManager) getSystemService(LOCATION_SERVICE);
if (!L.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
Intent I = new Intent(
android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(I);
}