常用存储目录
- getExternalCacheDir:/storage/emulated/0/Android/data/com.fengyangts.newmodule/cache
- getExternalFilesDir(Environment.DIRECTORY_PICTURES):/storage/emulated/0/Android/data/com.fengyangts.newmodule/files/Pictures
- getFilesDir():/data/data/com.fengyangts.newmodule/files
- getCacheDir():/data/data/com.fengyangts.newmodule/cache
- Environment.getDataDirectory():/data
- Environment.getDownloadCacheDirectory():/cache
- Environment.getRootDirectory():/system
- Environment.getExternalStorageDirectory():/storage/emulated/0
- Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES):/storage/emulated/0/Pictures
- Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM):/storage/emulated/0/DCIM
- Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES):/storage/emulated/0/Movies
- Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS):/storage/emulated/0/Documents
