MDRootLayout.java 文件源码

private void invertGravityIfNecessary() {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) return;
    Configuration config = getResources().getConfiguration();
    if (config.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL) {
        switch (mButtonGravity) {
            case START:
                mButtonGravity = GravityEnum.END;
                break;
            case END:
                mButtonGravity = GravityEnum.START;
                break;
        }
    }
}