Write down, the province can not remember to turn around:
Environment.getdatadirectory () =/data
Environment.getdownloadcachedirectory () =/cache
Environment.getexternalstoragedirectory () =/mnt/sdcard
Environment.getexternalstoragepublicdirectory ("test") =/mnt/sdcard/test
Environment.getrootdirectory () =/system
Getpackagecodepath () =/data/app/com.my.app-1.apk
Getpackageresourcepath () =/data/app/com.my.app-1.apk
Getcachedir () =/data/data/com.my.app/cache
Getdatabasepath ("test") =/data/data/com.my.app/databases/test
Getdir ("Test", context.mode_private) =/data/data/com.my.app/app_test
Getexternalcachedir () =/mnt/sdcard/android/data/com.my.app/cache
Getexternalfilesdir ("test") =/mnt/sdcard/android/data/com.my.app/files/test
Getexternalfilesdir (NULL) =/mnt/sdcard/android/data/com.my.app/files
Getfilesdir () =/data/data/com.my.app/files
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