Revision history [back]

To view the contents of a folder and write to it on an SD Card using MAUI on Android, you can follow these steps:

1. First, ensure that your Android device is connected to your computer via USB debugging mode.
2. In your MAUI project, create a new folder in the root directory and name it as "Documents" or any other suitable name.
3. To access the contents of the SD Card on Android, you can use the Environment.getExternalStorageDirectory() method in your MAUI project. This method returns the root directory of the external storage (i.e., SD Card). For example, you can use the following code to get the path to the external storage:

var externalStoragePath = Android.OS.Environment.GetExternalStoragePublicDirectory(Android.OS.Environment.DirectoryDocuments).AbsolutePath;

1. Once you have the path to the external storage, you can use the System.IO.Directory class to view the contents of a folder on the SD Card. For example, to get the list of files in the "Documents" folder, you can use the following code:

var documentsPath = System.IO.Path.Combine(externalStoragePath, "Documents");
var fileNames = System.IO.Directory.GetFiles(documentsPath);

1. Similarly, to create a new file or write to an existing file on the SD Card, you can use the System.IO.File class. For example, to create a new text file named "MyFile.txt" in the "Documents" folder and write some text to it, you can use the following code:

var filePath = System.IO.Path.Combine(documentsPath, "MyFile.txt");
System.IO.File.WriteAllText(filePath, "This is some text written to the file.");

Note: Ensure that your app has the required permissions to read and write to the external storage. You can request these permissions in the AndroidManifest.xml file of your MAUI project.