opermission/src/main/java/co/omkar/utility/opermission/RequestPermission.java
private void showDialog(PermBean permBean) {
        PermissionDialogFragment fragment = PermissionDialogFragment.getInstance(permBean, requestCode);
        fragment.show(mActivity.getSupportFragmentManager(), TAG);
    }
private void showDialog(PermBean permBean) {
        PermissionDialogFragment fragment = PermissionDialogFragment.getInstance(permBean, requestCode);
        fragment.show(mActivity.getSupportFragmentManager(), TAG);
    }
Show dialog fragment to show dialogs before asking permission.
Or you can set to show dialogs only when user denied permission earlier.

@param permBean {@link PermBean} wrapper class
with Permission and respective messages.