maybe this is a stupid question but......
I would like to know why Android Stuio asks for permission check in a certain part of my code, even though I have already gone through the permission check some lines above...
I have enclosed a small screen cap with this part of the code to show you the exact situation...all the code that you can see on the picture is included in the only method existing in the code: OnCreate
It is a warning generated by android studio. You code will still compile and run . But it is best practice to include the permission check before calling locationManager.requestLocationUpdates
Like:
public boolean checkLocationPermission() {
String permission = "android.permission.ACCESS_FINE_LOCATION";
int res = this.checkCallingOrSelfPermission(permission);
return (res == PackageManager.PERMISSION_GRANTED);
}
use it like:
if (checkLocationPermission()) {
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 3000, 0, myLocationListener);
}
Related
I'm using Qt (6.4.1) for android. I used to ask "ACCESS_FINE_LOCATION" permission to get GPS position using code like:
auto permissionGPS = QtAndroidPrivate::requestPermission("android.permission.ACCESS_FINE_LOCATION").result();
if(permissionGPS == QtAndroidPrivate::Authorized){
source = QGeoPositionInfoSource::createDefaultSource(0);
if (source) {
auto last = source->lastKnownPosition(false);
if(last.isValid()){
receivePosition(last);
}else{
connect(source, &QGeoPositionInfoSource::positionUpdated, this, &Locator::receivePosition);
source->startUpdates();
}
}
}else{
emit GPSRefusal(false);
}
Unfortunately if the user perfers to allow "ACCESS_COARSE_LOCATION", this code doesn't work anymore.
If I replace requested permission with "ACCESS_COARSE_LOCATION" (which is reasonable for my app), I get the following error:
W qt.positioning.android: : Position data not available due to missing permission 4
Does any one know how to get ACCESS_COARSE_LOCATION positioning working with Qt ?
For an Android 13 device you first have to request COARSE location permission.
And only after you obtained permission request gps FINE permission.
Two steps.
I'm getting the following IDE warning for my code in Android Studio:
Call requires permission which may be rejected by user: code should explicitly check to see if permission is available (with checkPermission) or explicitly handle a potential SecurityException
My code looks like this. It's supposed to set a GoogleMap object to show a frame with the user's location normally, and a frame with all of Germany if they have location disabled (location == null) or denied location permissions for the app (addOnFailureListener).
fusedLocationClient.lastLocation.addOnFailureListener(this) {
Log.e("onRequestPermissions", "fail")
mMap?.moveCamera(CameraUpdateFactory.newLatLngZoom(LatLng(51.17, 10.45), 6F)) // Germany
}
fusedLocationClient.lastLocation.addOnSuccessListener(this) { location ->
Log.e("onRequestPermissions", "succ")
if (location == null)
mMap?.moveCamera(CameraUpdateFactory.newLatLngZoom(LatLng(51.17, 10.45), 6F)) // Germany
else
mMap?.moveCamera(CameraUpdateFactory.newLatLngZoom(LatLng(location.latitude, location.longitude), 13F))
}
I don't get why calling fusedLocationClient (getFusedLocationClient) gives me this error message. I thought the FusedLocationProviderClient was always there, and I'm handling the case that the user denied location permission inside of addOnFailureListener. So how can I possibly attach this failure callback if I'm not allowed to even call getFusedLocationClient.
This warning is treated with severity "error" and all-red text by Android Studio which makes my code look pretty broken.
In order to let Lint know you are "aware of the corresponding permission check and handle it somewhere else in your code" add the #SuppressLint("MissingPermission") annotation to the method which contains the code.
The #SuppressLint annotation
Indicates that Lint should ignore the specified warnings for the annotated element.
The error is actually asking you should either explicitly check whether requested permission is enabled or you can disable lint checking by adding the #SuppressLint annotation to that code.
PermissionChecker.PERMISSION_GRANTED ==
PermissionChecker.checkSelfPermission(
requireContext(),
Manifest.permission.ACCESS_FINE_LOCATION
))
Or
#SuppressLint("MissingPermission")
I get why Android Studio shows the MissingPermission warning.
Call requires permission which may be rejected by user: code should explicitly check to see if permission is available (with checkPermission) or explicitly handle a potential SecurityException less... (⌘F1)
If there is an #RequiresPermission annotated method, the permission needs to be checked. So to prevent the warning, I need to do:
if (ActivityCompat.checkSelfPermission(this,
Manifest.permission.PERMISSION) == PackageManager.PERMISSION_GRANTED) {
methodThatNeedsAPermission();
}
Now, this is quite a long code to have in a condition check. Moreover, I want my code to be clean, I want to extract the check to keep business logic and UI / Context-related Android code separated, so I'd like to have:
public void startDoingSomething() {
if (hasPermission()) {
methodThatNeedsAPermission();
}
}
...
public boolean hasPermission() {
return ActivityCompat.checkSelfPermission(this,
Manifest.permission.PERMISSION) == PackageManager.PERMISSION_GRANTED;
}
But with this, Android Studio still shows the warning.
Of course, I could suppress the warning with #SuppressLint("MissingPermission") but why should I? I am checking for the permission.
Is there a clean way to get around this? Some kind of annotation I'd add to hasPermission() method so that Android Studio knows that I am checking for the permission?
I had a situation like this and the solution was to follow this path
File > Settings > Editor > inspections > Android click down pointer
Lint click down pointer > Correctness click down pointer
then under Messages scroll down to Missing Permissions un-check the box
Click Apply and OK
Lint is great but not always correct
I really struggle with this since a while :( as I need an solution that works within UNITY3D.
I need to check if the user has given the permission to access the Android device camera (and location on a second level).
Normally the app start by asking for this permissions at launch, but if the user denies the access for the camera I need to know and check that later.
Otherwise the user could hit the camera UI button I made and try to access the camera via webcamtexture... and that leads into a crash of the app.
Since Android API 23 you cannot ignore or already grant permissions by changing the android manifest like I tried after reading several posts about that.
Thank's to everyone who has an idea to solve this.
Check this library: https://github.com/sanukin39/UniAndroidPermission
In that library I got these methods to check and request Permission.
public static void requestPermission(String permissionStr){
if(!hasPermission(permissionStr)) {
UnityPlayer.currentActivity.requestPermissions(new String[]{permissionStr}, 0);
}
}
public static boolean hasPermission(String permissionStr) {
if(Build.VERSION.SDK_INT < 23) {
return true;
}
Context context = UnityPlayer.currentActivity.getApplicationContext();
return context.checkCallingOrSelfPermission(permissionStr) == PackageManager.PERMISSION_GRANTED;
}
Hope it helps:)
Hi there I am making my app and I am worried that I might have left some permissions out and can really never be sure I have used the right permissions can you put in any sort of code to see what my app is actually using? or something like that as it is always a guessing game for me when selecting my permissions as I can never be sure.
Heres an example I make a "Check for Updates" Button. From that I launch an Intent to go to my app in the market is that using the internet connection ? or am I just using an Intent because some people will not have a working data connection so would I have to write access full network or something like that? Its just really confusing me
I think u have to check it during testing phase of apps.if there is not proper permissions given by u then the apps give error and u can add proper permission according to error.
Here is an example to walk through permissions:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
PackageManager pm = getPackageManager();
try {
PackageInfo pi = pm.getPackageInfo("<INTERESTING PACKAGE NAME>", PackageManager.GET_PERMISSIONS);
if ((null == pi.requestedPermissions) ||
(pi.requestedPermissions.length == 0)) {
Log.d("NOTE", "Package has NO permissions!");
return;
}
for (int i = 0; i < pi.requestedPermissions.length; ++i) {
Log.d("NOTE", pi.requestedPermissions[i] + " " + checkCallingOrSelfPermission(pi.requestedPermissions[i]));
}
} catch (NameNotFoundException e) {
Log.d("ERR", "Package name is wrong!");
}
}
Edit: your question seems to ask what permissions your app is using; this code tells your app what permissions you've requested. If you want to know what is being used, you need to strip all permissions from your app (which will cause runtime errors if you actually need any of them), and then through reading error logs and/or incrementally adding permissions until things work correctly, determine by hand what is actually needed.