public void start(@NonNull Fragment fragment, int requestCode, BoxingConfig.ViewMode viewMode) {
        BoxingManager.getInstance().getBoxingConfig().withViewer(viewMode);
        fragment.startActivityForResult(mIntent, requestCode);
    }
use to start raw image viewer.

@param viewMode {@link BoxingConfig.ViewMode}
boxing/src/main/java/com/bilibili/boxing/Boxing.java