打印FileExt.java日志, String path = FileUtils.getPath(activity, uri);
调用前的uri输出如下
2021-06-02 17:49:31.864 22506-22506/com.cosmo.cosmooa E/Alex: content://com.android.providers.media.documents/document/document%3A35698
2021-06-02 17:49:31.874 22506-22506/com.cosmo.cosmooa W/System.err: java.lang.NullPointerException: uri