I'm planning to develop a net disk app for myself. The first step I need to list all the files in path /storage/emulated/0/Pictures in my phone. I've read the file-picker but no help. Also, is there any sample maui net disk APP for beginners to learn? Thanks.

Hello, It is recommended to use Media picker to pick photos. This article describes how you can use the .NET Multi-platform App UI (.NET MAUI) IMediaPicker interface. This interface lets a user pick or take a photo or video on the device . Update: You could add a Helper class into your Platform\Android folder to get all files from "/storage/emulated/0/Pictures" . public static class Helper { public static string[] files_help() { var dir = Environment.GetExternalStoragePublicDirectory(Environment.DirectoryPictures); var files = Directory.GetFiles(dir.AbsolutePath, "*"); return files } } Best Regards, Alec Liu. If the answer is the right solution, please click " Accept Answer " and kindly upvote it. If you have extra questions about this answer, please click "Comment". Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

MAUI How to list all files in my phone /storage/emulated/0/Pictures?

Accepted answer

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 45,411 Reputation points Microsoft Vendor

2022-10-04T05:22:30.83+00:00
Hello,

It is recommended to use Media picker to pick photos.

This article describes how you can use the .NET Multi-platform App UI (.NET MAUI) IMediaPicker interface. This interface lets a user pick or take a photo or video on the device.

Update:

You could add a Helper class into your Platform\Android folder to get all files from "/storage/emulated/0/Pictures".

public static class Helper { public static string[] files_help() { var dir = Environment.GetExternalStoragePublicDirectory(Environment.DirectoryPictures); var files = Directory.GetFiles(dir.AbsolutePath, "*"); return files } }

Best Regards,

Alec Liu.

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

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xiangnan 21 Reputation points

2022-10-04T05:30:57.79+00:00

Hello, I've read the link you provided but no helps. what I ask is How to list all files in a particular folder, not pick photos. something like getAllFiles("/storage/emulated/0/Pictures") => ["1.png", "2.png"]

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 45,411 Reputation points Microsoft Vendor

2022-10-04T06:53:34.403+00:00

I've updated my answer, please check it.:)

xiangnan 21 Reputation points

2022-10-04T09:24:25.567+00:00

Hello, How to use your snippet in Pages/Counter.razor? I've tried two ways, both failed:

paste it directly in the @Aidan Wick block

make a file named MyHelper.cs like below in Platform/Android but can't referer it in Pages/Counter.razor. using Android.App;
using Android.Content.PM;
using Android.OS;
using Environment = Android.OS.Environment; namespace MauiApp6; public static class ListPictruresHelper
{
public static string[] files_help()
{
var dir = Environment.GetExternalStoragePublicDirectory(Environment.DirectoryPictures);
var files = Directory.GetFiles(dir.AbsolutePath, "*");
return files;
}
}

Pages/Counter.razor

@page "/counter" <h1>Counter</h1> <button class="btn btn-primary" @onclick="ListPictures">List</button> @code { public async void ListPictures() { // how to use your snippet ? } }

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 45,411 Reputation points Microsoft Vendor

2022-10-05T02:51:38.113+00:00

You could call the method as the following:

public async void ListPictures() { #if ANDROID var files = MauiApp10.Platforms.Android.ListPictruresHelper.files_help(); #endif }

In addition, if your Android API version is greater than 29, it is more recommended to use MediaStore to get media files in your phone.

Please refer to MediaStore.

xiangnan 21 Reputation points

2022-10-06T03:11:32.193+00:00

Hello, I use this snippet and encounter an error The type or namespace name 'Platforms' does not exist in the namespace 'MauiApp6' (are you missing an assembly reference?)

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 45,411 Reputation points Microsoft Vendor

2022-10-06T05:13:45.823+00:00

You need to put the Android code in #if ANDROID ... #endif to invoke it.

Please refer to Invoke platform code.

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 45,411 Reputation points Microsoft Vendor

2022-10-19T08:20:32.667+00:00

May I know whether your issue has been solved or not? If not, please share it in here. We can work together to figure it out.

xiangnan 21 Reputation points

2022-10-23T09:37:54.61+00:00

Hello, I added but still the same error:

This is the repo link: https://github.com/xiangnanscu/MauiApp6

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 45,411 Reputation points Microsoft Vendor

2022-10-24T09:36:15.493+00:00

I've tested your demo, and found it was caused by the wrong namespace in your helper class.

Please modify namespace MauiApp6; to namespace MauiApp6.Platforms.Android; in the MyHelper.cs file.

After modifying it, the items could be successfully output:

[DOTNET] /storage/emulated/0/Pictures/test.jpg [DOTNET] /storage/emulated/0/Pictures/IMG_20221024_172821.jpg [DOTNET] /storage/emulated/0/Pictures/IMG_20221024_172822.jpg
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