Grant me runtime permissions.

sample.java

    private void grantMeAllDangerousPermissions()
    {
        if (Build.VERSION.SDK_INT < 23) {
            shouldBeOkayToStartTheApplicationNow();
            return;
        }

        try
        {
            final int PERMISSIONS_REQUEST_CODE = 9613;

            // Scan manifest for dangerous permissions not already granted
            PackageManager packageManager = getPackageManager();
            PackageInfo packageInfo = packageManager.getPackageInfo(getPackageName(), PackageManager.GET_PERMISSIONS);
            if (packageInfo.requestedPermissions == null)
                packageInfo.requestedPermissions = new String[0];

            final List<String> neededPermissions = new LinkedList<String>();
            for (String permission : packageInfo.requestedPermissions) {
                PermissionInfo permissionInfo = packageManager.getPermissionInfo(permission, PackageManager.GET_META_DATA);
                if (permissionInfo.protectionLevel != PermissionInfo.PROTECTION_DANGEROUS)
                    continue;
                if (checkCallingOrSelfPermission(permission) == PackageManager.PERMISSION_GRANTED)
                    continue;
                neededPermissions.add(permission);
            }

            // No need to ask for any dangerous permissions
            if (neededPermissions.isEmpty()) {
                shouldBeOkayToStartTheApplicationNow();
                return;
            }

            final FragmentManager fragmentManager = getFragmentManager();
            final Fragment request = new Fragment() {

                @Override public void onStart()
                {
                    super.onStart();
                    requestPermissions(neededPermissions.toArray(new String[0]), PERMISSIONS_REQUEST_CODE);
                }

                @Override public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults)
                {
                    if (requestCode != PERMISSIONS_REQUEST_CODE)
                        return;
                    
                    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                    fragmentTransaction.remove(this);
                    fragmentTransaction.commit();

                    shouldBeOkayToStartTheApplicationNow();
                }
            };

            FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
            fragmentTransaction.add(0, request);
            fragmentTransaction.commit();
        }
        catch(Exception error)
        {
            Log.w("MyApplicationTag", String.format("Unable to query for permission: %s", error.getMessage()));
        }
    }