android-external-storage

来源： https://stackoverflow.com/questions/63842070/accessing-external-storage-in-android-api-29

来源： https://stackoverflow.com/questions/37471482/android-mkdir-returns-false-doesnt-create-folder

来源： https://stackoverflow.com/questions/57929565/insert-video-to-gallery-android-q

来源： https://stackoverflow.com/questions/57929565/insert-video-to-gallery-android-q

来源： https://stackoverflow.com/questions/63480192/how-to-save-pdf-file-in-a-media-store-in-android-10-and-above-using-java

问题 Up until Android Pie I always stored files which the app needed to get stored on /sdcard/my-app/ , which I got via File fBaseDir = new File(Environment.getExternalStorageDirectory(), "my-app"); One of my App stores hundreds (up to multiple thousands) of favicons in /sdcard/my-app/favicons , and when the user creates a backup of the app, it gets stored in /sdcard/my-app/backups . Webpage-Screenshots taken by Google Chrome when shared with my app are stored in /sdcard/my-app/screenshots , and

问题 I'm very new to android development and I need a beginners help please... I am creating an app that should have 2 directories, a Databases directory and an Images directory, just like Whatsapp has. I want to see those directories in the File Manager when I'm browsing my phone, just like you see other apps folders. I tried everything I found here, to create it in the Internal storage and in the External storage from code. The folders seem to be created, but when I browsed my phone's File

问题 With the newer Android Q many things changed, especially with scoped storage and gradual deprecation of file:/// URIs. The problem is the lack of documentation on how to handle media files correctly on Android Q devices. I have a media file (audio) management application and I could not find yet a reliable way to tell to the OS that I performed a change to a file so that it can update its MediaStore record. Option #1: MediaScannerService MediaScannerConnection.scanFile(context, new String[]{

问题 I am building this app on android things. I want to be able to give it access to media files on a USB stick or maybe even the raspberry pi's SDcard. I don't know what I'll have it do with those files yet but I just wanna know if its possible. If it isn't that's fine I have other solutions but I figured I would start with the obvious approach first. 回答1: I'm didn't try it, but seems it's possible by the same way as in normal Android OS. To do this You should mount Your USB dongle into the

问题 I'm using a Samsung A3, Android 5.0.2. I'm using this setup to compile apps, i.e. Android 4.1 Jelly Bean (API 16) target. I precisely know the path of the external removable microSD card, it is /mnt/extSdCard/ (see also Note #7 below). Problem: I notice that File myDir = new File("/mnt/extSdCard/test"); myDir.mkdirs(); doesn't work: no directory is created. Also: File file = new File("/mnt/extSdCard/books/test.txt"); // the folder "books" already exists on the external microSD card, has been