public boolean checkLocationPermission() {
    if (ContextCompat.checkSelfPermission(this,
            Manifest.permission.ACCESS_FINE_LOCATION)
            != PackageManager.PERMISSION_GRANTED) {

        // Should we show an explanation?
        if (ActivityCompat.shouldShowRequestPermissionRationale(this,
                Manifest.permission.ACCESS_FINE_LOCATION)) {

            // Show an explanation to the user *asynchronously* -- don't block
            // this thread waiting for the user's response! After the user
            // sees the explanation, try again to request the permission.
            new AlertDialog.Builder(this)
                    .setTitle(R.string.title_location_permission)
                    .setMessage(R.string.text_location_permission)
                    .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialogInterface, int i) {
                            //Prompt the user once explanation has been shown
                            ActivityCompat.requestPermissions(SalesPersonActivity.this,
                                    new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
                                    MY_PERMISSIONS_REQUEST_LOCATION);
                        }
                    })
                    .create()
                    .show();


        } else {
            // No explanation needed, we can request the permission.
            ActivityCompat.requestPermissions(this,
                    new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
                    MY_PERMISSIONS_REQUEST_LOCATION);
        }
        return false;
    } else {
        return true;
    }
}

@Override
public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST_LOCATION: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted, yay! Do the
                // location-related task you need to do.
                if (ContextCompat.checkSelfPermission(this,
                        Manifest.permission.ACCESS_FINE_LOCATION)
                        == PackageManager.PERMISSION_GRANTED) {

                    //Request location updates:
                        getLocation();
                }

            } else {

                // permission denied, boo! Disable the
                // functionality that depends on this permission.
                checkLocationPermission();
            }
            return;
        }

    }

String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION};

        getBulkPermissions(permissions, new RequestPermissionAction() {
            @Override
            public void permissionDenied() {
                // TODO: 5/27/2018 handle permission deny
            }

            @Override
            public void permissionGranted() {
                // TODO: 5/27/2018 you code do further operations
            }
        });

RequestPermissionAction onPermissionCallBack;
private final static int REQUEST_BULK_PERMISSION = 3006;

private boolean checkBulkPermissions(String[] permissions) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        for (String permission : permissions) {
            if (checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
                return false;
            }
        }
        return true;
    } else {
        return true;
    }
}

public void getBulkPermissions(String[] permissions, RequestPermissionAction onPermissionCallBack) {
    this.onPermissionCallBack = onPermissionCallBack;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        if (!checkBulkPermissions(permissions)) {
            requestPermissions(permissions, REQUEST_BULK_PERMISSION);
            return;
        }
    }
    if (onPermissionCallBack != null)
        onPermissionCallBack.permissionGranted();
}

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
        if (onPermissionCallBack != null)
            onPermissionCallBack.permissionGranted();
    } else if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_DENIED) {
        if (onPermissionCallBack != null)
            onPermissionCallBack.permissionDenied();
    }
}

public interface RequestPermissionAction {
    void permissionDenied();
    void permissionGranted();
}