Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
352 views
in Technique[技术] by (71.8m points)

Android Get Application's 'Home' Data Directory

A simple question, relating to the default 'home' directory when an app writes to the internal memory. By default, any files created are placed by the OS (2.2) in:

/data/data/your.package/files

When reading in files, the same default is used, when keeping in proper context via openFileInput(), openFileOutput(). But if I need to check file existence, for instance, using the File class, I need to specify the whole path in the constructor.

I see there are Environment.getDataDirectory() (returns /data), Environment.getRootDirectory() (returns /system), etc, but nothing related to getting the app's 'home' directory.

It's not a huge deal, but I'd rather not hard-code the full path into my App for File to use (say the package name changes, say the path changes in a future OS release) if there is some way to reference the app's 'home' directory programmatically.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Of course, never fails. Found the solution about a minute after posting the above question... solution for those that may have had the same issue:

ContextWrapper.getFilesDir()

Found here.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...