Android Path acquisition

Internal Path

Environment.getdatadirectory () =/data

Environment.getdownloadcachedirectory () =/cache

Environment.getrootdirectory () =/system

Context.getcachedir () =/data/data/com.penngo.test/cache

Context.getfilesdir () =/data/data/com.penngo.test/files

Memory card Path

Environment.getexternalstoragedirectory () =/storage/sdcard0

Selectable values Directory_music, directory_podcasts, Directory_ringtones,

Directory_alarms, Directory_notifications, Directory_pictures,

Directory_movies, Directory_downloads, or DIRECTORY_DCIM. Cannot be null

Environment.getexternalstoragepublicdirectory (Environment.directory_music) =/storage/sdcard0/music

As with Context.getfilesdir (similar to deleting an app, it is deleted at the same time

Context.getexternalfilesdir () =/storage/sdcard0/android/data/com.penngo.test/files

Similar to Context.getcachedir (), deleting an app deletes it at the same time

Context.getexternalcachedir () =/storage/sdcard0/android/data/com.penngo.test/cache

System.getproperty ("user.home") =

System.getproperty ("Java.io.tmpdir") =/data/data/com.penngo.test/cache

New File (). GetAbsolutePath () =/.

Determine if a memory card exists

public static Boolean issdcardexist () {

if (Environment.getexternalstoragestate (). Equals (

environment.media_mounted)) {//Determine if the mount is already mounted

return true;

}

return false;

}

Android Path acquisition