.NET MAUI: Label issue, Overflowing Texts in StackLayouts
This content has 1 year. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.In this blog post, we will explore a known issue affecting the Label UserControl in .NET MAUI when used within a StackLayout. We will explain how this problem manifests and the temporary solution proposed by the Microsoft team. The Issue The problem arises when using the Label UserControl inside a StackLayout UserControl. Despite setting the parent UserControl’s width and height, the Label does not respect these dimensions and overflows its content. This can lead to visual glitches and unintended behavior in the application’s user interface. Reproducing the Issue To replicate the issue, follow these steps: For example The Proposed Solution While the Microsoft team is actively working on addressing this issue, a temporary solution is available to mitigate the problem. By setting the IsClippedToBounds parameter of the StackLayout to true, we can prevent the Label from overflowing its parent’s boundaries. What does IsClippedToBounds do? IsClippedToBounds is a property of the StackLayout that determines whether its children should be clipped to fit within the bounds of the parent container. When this property is set to true, any content that extends beyond the StackLayout’s boundaries will be clipped and hidden, ensuring that it does not visually overflow the container. A tiny disadvantage While setting the IsClippedToBounds property can help mitigate the issue of overflowing content in a StackLayout, it comes with its…
.NET MAUI: Android Bug – Map’s MoveToRegion Method Not Updating Visible Region
This content has 1 year. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.In the realm of software development, encountering bugs is an inevitable part of the process. In this blog post, we will delve into a bug specific to the Android platform in .NET MAUI applications. This bug affects the Map control, where the MoveToRegion method fails to update the visible region under certain circumstances. We will explore the symptoms of this bug and present a workaround that involves creating a custom child class of the Map control and overriding the OnPropertyChanged method of the IsVisible property. Symptoms The bug we are addressing pertains to the Map control in .NET MAUI applications on the Android platform. In some cases, the MoveToRegion method fails to modify the visible region of the map, resulting in the region staying the same despite the attempted change. This issue can lead to inconsistencies in map display and user experience. Workaround To overcome this bug, we can implement a workaround that involves creating a custom child class of the Map control and overriding the OnPropertyChanged method of the IsVisible property. By introducing a small delay and invoking the MoveToRegion method on the UI thread, we can ensure that the visible region updates correctly. Begin by creating a new class that derives from the Map control. This class will serve as a custom child class that incorporates the necessary…
.NET MAUI iOS Bug – Release Mode Bindings Not Working
This content has 1 year. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.Software bugs can sometimes manifest in specific environments or platforms, leading to unexpected behavior. In this blog post, we will discuss a bug in .NET MAUI specifically affecting iOS platforms. The bug causes bindings between Views and ViewModels to fail in Release mode, resulting in empty Views without the expected data. We’ll explore the symptoms of this bug and present a workaround that involves utilizing the XamlCompilation attribute with the Skip option. Symptoms The bug we are addressing affects the binding functionality in .NET MAUI apps running on iOS platforms in Release mode. When encountering this issue, Views fail to bind with their associated ViewModels, resulting in empty Views that appear as if no BindingContext is present. What is XamlCompilation? XamlCompilation is an attribute provided by Xamarin.Forms that allows developers to specify how XAML files should be compiled. It offers three options: None, XamlC, and Skip. Providing workaround To mitigate this bug, we can utilize the XamlCompilation attribute with the Skip option on the affected Views. This attribute is used to control the compilation behavior of XAML files in .NET MAUI applications. Identify the Affected View First, identify the View(s) in your .NET MAUI app that are experiencing the binding issue specifically on iOS platforms in Release mode. Add XamlCompilation Attribute Add the XamlCompilation attribute to the affected View’s code-behind…
.NET MAUI: Bug – GestureRecognizers are not working on some views
This content has 1 year. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.In the world of software development, bugs can occasionally arise, causing unexpected behavior in our applications. In this blog post, we will explore a bug affecting TapGestureRecognizers in .NET MAUI apps, specifically on certain Views like frames. We’ll discuss the symptoms of this bug and provide a practical workaround to ensure that TapGestureRecognizers properly fire events or execute commands. Symptoms The bug we are addressing is related to TapGestureRecognizers not functioning as expected on specific Views, such as frames, in .NET MAUI apps. This issue prevents TapGestureRecognizers from triggering events or executing commands, leading to a loss of interactivity for the affected Views. Workaround To overcome this bug, we can utilize a simple workaround that involves creating a transparent BoxView on top of the desired interaction area. By setting the InputTransparent property of the BoxView to false, we allow it to capture touch events, effectively acting as an overlay for the affected View. We can then assign the TapGestureRecognizer to the transparent BoxView to regain the desired interactivity. First, identify the View that is experiencing the issue with TapGestureRecognizers. In this example, let’s assume we have a Frame control that should respond to tap events but is currently affected by the bug. Add a Transparent BoxView Within the same container as the affected View, add a BoxView control. Set its…
.NET MAUI: Implementing Light and Dark Modes
This content has 1 year. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.In modern application development, providing users with the ability to switch between light and dark modes has become an essential feature. This functionality not only enhances user experience but also accommodates personal preferences and improves accessibility. In this blog post, we will explore how to implement light and dark modes in .NET MAUI apps using the UserAppTheme property in the App.xaml.cs file. Understanding the App.xaml.cs File The App.xaml.cs file in a .NET MAUI application is responsible for defining the application’s startup and initialization logic. It acts as the entry point for the application and provides a central location to handle events and configure application-wide settings. Setting the UserAppTheme Property To enable light and dark modes in your .NET MAUI app, you need to access the UserAppTheme property available in the Application.Current object. This property allows you to specify the desired theme for your application. If your application does not allow the users to change the light/dark modes, but you want to force the app to be in a specified state, you can use the App.xaml.cs constructor, and you can set the UserAppTheme property to either AppTheme.Light or AppTheme.Dark, depending on a predefined default. Here’s an example of how to set the AppTheme to Light mode: Application.Current.UserAppTheme = AppTheme.Light; Similarly, you can set the AppTheme to Dark mode: Application.Current.UserAppTheme = AppTheme.Dark;
Hi, I am András,
I am a seasoned software engineer from Budapest, Hungary with a strong focus on mobile app development using .NET MAUI and Xamarin.Forms. My expertise also extends to website building for my happy customers and other complex system designing. I am passionate about developing well-organized, maintainable software solutions.