Add method to check background location permission (iOS & Android)

[diachedelic]

I appreciate the work that went into this, but I don't think it is the ideal solution. Because this plugin does not request the ACCESS_BACKGROUND_LOCATION permission, it makes no sense to have a method that checks it. I also appreciate that you provided an iOS equivalent, but in this case the two permissions are not symmetrical.

I intend to properly fix the bug you are experiencing, but the 'checkBackgroundLocationPermission' method seems more like a stopgap measure. I recommend you move it into an ad hoc Android plugin within your application. It is very easy:

// BackgroundLocationPermissionsPlugin.java

package ...;

...

@NativePlugin
public class BackgroundLocationPermissionsPlugin extends Plugin {
    @PluginMethod()
    public void checkBackgroundLocationPermission(PluginCall call) {
        Boolean hasPermission = ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_BACKGROUND_LOCATION) == PackageManager.PERMISSION_GRANTED;
        JSObject obj = new JSObject();
        obj.put("hasPermission", hasPermission);
        call.resolve(obj);
    }
}

Place BackgroundLocationPermissionsPlugin.java in the same directory as MainActivity.java. Then modify MainActivity.java like so:

package ...;

import android.os.Bundle;
import com.getcapacitor.BridgeActivity;

public class MainActivity extends BridgeActivity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        registerPlugin(BackgroundLocationPermissionsPlugin.class);
        super.onCreate(savedInstanceState);
    }
}