How to get all the files from Internal and External Storage Programatically? - android-external-storage

I want to show device files in a list view and also want to delete files from list view. For this i am trying to get Images, Music and Video files from External and Internal both storage. But it's returning systems file also. I don't need to show system's file.
Please help.....

Related

How to load files from internal storage Local Directories in Flutter?

I need help retrieving local image and video directories from internal storage for a gallery module in my Flutter app. I have an 'abc' folder in internal storage containing subfolders for images and videos, which I want to display in separate tabs with their file information (size and date) and thumbnails. Additionally, I require a video trimmer feature.
Is it possible to accomplish this in Flutter? Thank you for any assistance, devs. I have attempted to find a solution or package, but with no success.
This is can be achieved with photo_manager, then you can style and group with gridview as you may prefer.
Yes, you trim videos in flutter, you can use video_trimmer for that too.

How can I prevent file copying from a pen drive? (No external softwares)

I want to place files (MP3s) in a pen drive and only allow users access to listen to the files in the drive but not be able to copy or edit these files.
And yes I know there are usb copy protect softwares but what they usually do is embed the files into an exe file along with required restrictions, but I want the mp3 files to be playable not just in computers but also in cars, TV's and so on.
How can I do this?
No way. If the data can be extracted (in order to be played), it can be saved elsewhere, i.e. copied.
In the worst case one can put a recorder near the sound system and record your music (and this is how many rips are made, especially in cinemas).

Chrome App: How to enumerate files under a static folder?

How can I enumerate files under a static folder (such as images where all the static images used by my app are stored) while developing a chrome app?
What I have tried:
- looked at these links 1, 2. i am not trying to read from local or user storage. i want to read from static storage. static storage are the folders where an app stores its static contents - assets like images, css, js etc.
- looked at this link. but my app needs to be able to enumerate all files under a static folder without prompting the user for any action/permission.
i will give an example of why this is useful. imagine i want to release an app using which users can read my poems. i want a static folder where i save poems i write. then as i write new poems, these poems should then be made available automatically without having to do any code changes. further i was able to do this on android without any user prompt whatsoever so expect chrome platform should also support this - there cannot be any security excuses.
If you are looking to enumerate app's own files, it's possible via chrome.runtime.getPackageDirectoryEntry.
It returns a DirectoryEntry for the root of your app that you can navigate and iterate through.
See this question: How do I get a list of filenames in a subfolder of a Chrome extension?
You can't. The user will have to choose some parent folder with chrome.fileSystem.chooseEntry at some point. However, you can arrange things so this is done only once when the app is first installed, and then save the FileEntry using the retained-entry API.

How to group files according to formats in folder structure in iOS app?

I'm trying to make an app where I can group different files in their respective folders from two accessed servers. For example all pictures from two servers should be in Picture folder and all music files in Music folder of the app.
As I have to access all the files from the server how could I group all the files in above mentioned folders.
Any suggestions how to initiate from above situation
Generally interactions with the app's sanboxed file system are done via the NSFileManager class.
http://developer.apple.com/library/ios/#documentation/Cocoa/Reference/Foundation/Classes/NSFileManager_Class/Reference/Reference.html
That class allows you to move, copy, delete, etc... You'll likely want to use it to first create your two directories, then use it to save files into those directories as needed.

Tag MP3 downloaded From Internet?

I am building an app with several podcasts. Each podcast gives the option to download the MP3 to the app. I have about 6 podcasts and would like to Tag each, so that when the archive view is clicked from each podcast, only archived files from that particular podcast show.
Is there someway that I can add a Tag or something to the downloaded mp3, and then in the archive, search only for mp3s with a tag related to that podcast?
BTW, I am using NSURLConnection to download each file
I think you may be looking at this in the wrong way.
Rather than tagging your downloaded files, you could set up a data structure to hold information about your files and use that to display your information.
For example. If I were doing this I would have a Core Data model that held information about the downloaded file, and tags, or sources, and I would store the path to that file in the database. That way, you can store whatever information you like about the downloaded file, and you can access it through it's path.