文件预览：file_provider.xml

<?xml version="1.0" encoding="utf-8"?> <paths> <external-path name="external_storage_root" path="." /> <files-path name="files-path" path="." /> <cache-path name="cache-path" path="." /> <!--/storage/emulated/0/Android/data/...--> <external-files-path name="external_file_path" path="." /> <!--代表app 外部存储区域根目录下的文件 Context.getExternalCacheDir目录下的目录--> <external-cache-path name="external_cache_path" path="." /> <!--配置root-path。这样子可以读取到sd卡和一些应用分身的目录，否则微信分身保存的图片，就会导致 java.lang.IllegalArgumentException: Failed to find configured root that contains /storage/emulated/999/tencent/MicroMsg/WeiXin/export1544062754693.jpg，在小米6的手机上微信分身有这个crash，华为没有 --> <root-path name="root-path" path="" /> </paths>