MobileConcept.Core 1.0.3

MobileConcept.Maui.Core

Essential core library for .NET MAUI applications. Provides utilities, base classes, and extension methods for cross-platform mobile development on Android and iOS.

Installation

dotnet add package MobileConcept.Maui.Core

Or via NuGet Package Manager:

Install-Package MobileConcept.Maui.Core

Features

• Image Helpers: Resize and rotate images with EXIF orientation handling
• Base Classes: MVVM foundation classes
• Extension Methods: Common utilities for MAUI development
• Platform Helpers: Android and iOS specific utilities

Usage

Image Rotation and Resizing

The ImageRotationHelper class helps you handle images from the camera or photo library, automatically managing EXIF rotation and resizing:

using MobileConcept.Maui.Core.Helpers;

private async Task MediaClickAsync(string mediaType)
{
    var options = new MediaPickerOptions { SelectionLimit = 1 };
    
    if (mediaType == "camera")
    {
        var result = await MediaPicker.CapturePhotoAsync(options);
        if (result is not null)
        {
            // Capture and process photo
            var stream = await result.OpenReadAsync();
            var resizedAndRotatedStream = ImageRotationHelper.ResizeProportionalWithExifRotation(
                stream, 
                maxWidth: 400, 
                maxHeight: 400
            );
            
            // Use the processed stream
            // ...
        }
    }
    else if (mediaType == "library")
    {
        var result = await MediaPicker.PickPhotosAsync(options);
        if (result.Count == 1)
        {
            // Select and process photo from library
            var stream = await result[0].OpenReadAsync();
            var resizedAndRotatedStream = ImageRotationHelper.ResizeProportionalWithExifRotation(
                stream, 
                maxWidth: 400, 
                maxHeight: 400
            );
            
            // Use the processed stream
            // ...
        }
    }
}

Why use ResizeProportionalWithExifRotation?

• EXIF Rotation: Automatically reads and applies the correct orientation from image metadata
• Proportional Resize: Maintains aspect ratio while fitting within specified dimensions
• Memory Efficient: Optimizes image size for mobile devices
• Cross-Platform: Works consistently on both Android and iOS

Requirements

• .NET 9.0 or later
• .NET MAUI 9.0 or later

Documentation

For more information, visit Mobile Concept Blog

License

MIT

Support

For issues and questions, please visit our GitHub repository

Part of the MobileConcept.Maui suite of packages for .NET MAUI development.