Environment.getDataDirectory().getPath() :/data
Environment.getDownloadCacheDirectory().getPath():/cache
Environment.getExternalStorageDirectory().getPath():/storage/emulated/0
Environment.getRootDirectory().getPath():/system
[用於獲取APP的cache目錄 /data/data/<application package>/cache目錄]Context.getCacheDir().getPath():/data/user/0/app.testgetpath/cache
[用於獲取APP的files目錄 /data/data/<application package>/files]Context.getFilesDir().getPath():/data/user/0/app.testgetpath/files
[ 用於獲取APPSDK中的obb目錄 /mnt/sdcard/Android]Context.getObbDir().getPath():/storage/emulated/0/Android/obb/app.testgetpath
[用於獲取APP的所在包目錄]Context.getPackageName() :app.testgetpath
[來獲得當前應用程式對應的 apk 檔案的路徑]Context.getPackageCodePath():/data/app/app.testgetpath-2/base.apk
[獲取該程式的安裝包路徑]Context.getPackageResourcePath():/data/app/app.testgetpath-2/base.apk
context.getExternalFilesDir("")+"": /storage/emulated/0/Android/data/apps.system/files