File save directory for Android app

Android app File save directory can be the app's built-in private directory, of course, you can also choose the external sdcard directoryBuilt-in private directory

1. /data/data/[packagename]/files file cache directory, generally save small file cache, if it is a picture, do not suggest put here, generally put to external card.

   File File = Getfilesdir (); Return to this directory
   Write files to this directory can be like this

   FileOutputStream fos = null;    try {        fos = appontext.openfileoutput (name, context.mode_private);        Fos.write (Content.getbytes ());    } catch (Exception e) {    }finally{        try {            if (null! = Fos) {                fos.close ()            }         } catch (Exception e) {        }    }

2. /data/data/[packagename]/cache directory, storing some other cached File cache = Getcachedir ();

3. /data/data/[packagename]/databases, storing the database

4. /data/data/[packagename]/lib, application of So directory

5. Sharedpreferences Save for/data/data/[packagename]/shared_prefs applications

Can I create a different directory on my own? OK
Use File Owndatapath = Getdir ("service", context.mode_private);
Use it to create a app_service directory, put what you define

External SDcard Directory

1. External Cache directory (File sdcache = Getexternalcachedir ();)
   /storage/emulated/0/android/data/[packagename]/cache
   Some of the less important caches or large files are put here, compared to the slice cache

2. The external File cache directory (File Sdfile = Getexternalfilesdir (null);),
   /storage/emulated/0/android/data/[packagename]/files
   Some of the less important file caches or large files are put here
   Note:/storage/emulated/0/android/data/[packagename] After android2.2, it will be uninstalled after the app is uninstalled. So there is no need to clean up the cache with what the software cleans.

PS: Now the phone supports external Mount T card, how to access the external T card directory?

1. can refer to!http://stackoverflow.com/questions/5694933/find-an-external-sd-card-location

File save directory for Android app