how to get the file properties in assets folder on android?

I want to get the file properties in assets folder on android,But it is unlike general operation use some kinds of methods to get,a开发者_高级运维nybody can help me to get the file properties such as modified date. My assets file has a "ok.txt",please do me a help?

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If I understand you correctly, I think this blog post will answer your question, with code showing example of using InputStream:

http://myossdevblog.blogspot.com/2010/02/reading-properties-files-on-android.html

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You can get last modified date with lastModified().

File file = new File(<file path>);
long lastModified = file.lastModified();

But lastModified() returns unix time. You can convert it with format.

Date date = new Date(lastModified);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SS");
String formattedDate = sdf.format(date);

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Take a look at the documentation of File class, there are lots of methods to get any kind of information about a file.