选择文件后,现在一般返回 Uri
contentResolver.getType(selUrl)结果如下
| .txt | text/plain |
| .jpeg | image/jpeg |
| .mp4 | video/mp4 |
| .mp3 | audio/mpeg |
| .yml/.hprof | application/octet-stream |
| .apk | application/vnd.android.package-archive |
| .json | application/json |
| .doc | application/msword |
| application/pdf | |
标签：文件,json,Uri,jpeg,application,mp4,本地,android From： https://www.cnblogs.com/caosq/p/17025520.html