Android：其他应用程序无法访问我的应用程序内的文件

Question

其他应用程序如 Microsoft Office、pdf 查看器无法打开我的应用程序的“/file”目录中的文件。

Answer 1

I have been providing the Uri of the file through

Uri uri = Uri.fromFile(file);

and I think that it was the wrong way of doing it, instead what you should be using is this

File file = new File(context.getFilesDir(), "/down.xls");
Uri uri = FileProvider.getUriForFile(context, BuildConfig.APPLICATION_ID + ".provider", file);
Intent browserIntent = new Intent(Intent.ACTION_VIEW, uri);
browserIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
context.startActivity(browserIntent);