Diagnosing and Fixing UI Freezes and ANRs in Xamarin.Android
Learn how to identify and resolve Application Not Responding (ANR) errors and UI freezes in Xamarin.Android by diagnosing main thread blocks and implementing async patterns.
Loading…
ReadMeFeed / Community knowledge
Xamarin
Real questions. Useful conversations. Find the people who know your stack.
Xamarin
Mobile & games · #xamarin
androidDiagnosing Shell Flyout Missing in Xamarin.Forms Apps on iOS and Android
When the Shell flyout never appears on launch, it’s usually a routing or attribute mis‑configuration. This guide walks through a step‑by‑step diagnostic checklist, shows how to verify routes, and gives concrete fixes for Xamarin.Forms on iOS and Android.
Bridging the Gap: Using DependencyService for Platform APIs in Xamarin.Forms
Learn how to use DependencyService in Xamarin.Forms to access native iOS and Android APIs from a shared project using the service locator pattern.
Shrinking Xamarin.Android APKs with the Linker: A Practical Guide
Learn how to safely shrink Xamarin.Android APKs using the Linker, with configuration steps, a worked example, and verification tips.
Use Shell URI routing to replace manual NavigationPage pushes in Xamarin.Forms
Centralize Xamarin.Forms navigation with Shell URI routing. Register routes in AppShell.xaml, bind query parameters with QueryProperty, and use GoToAsync for consistent deep linking and back stack control across Android and iOS.
Which methods provide reliable validation of Xamarin.Android app backup and restore operations without altering the original backup data?
Ensuring that a Xamarin.Android app's backup and restore cycle works correctly requires verifying that the backup archive captures all relevant app data, that the restore operation returns the device to the exact pre-backup state, and that no unintended side effects occur during the process. Validation must be feasible on both emulators and physical devices
Full Linking Support for Reflection-Based Libraries in Xamarin.Android Release Builds
Goal Determine a repeatable approach for preserving members that are accessed only through reflection, JSON serialization, dependency injection, or XAML when the Xamarin.Android project is built with the Full linker mode (AndroidLinkMode=Full) for release configurations. Constraints The Full linker aggressively removes unused managed code, which reduces APK
Xamarin.Android Java.Interop Concurrency Latency
The Xamarin.Android Java.Interop layer measures latency when multiple managed threads invoke the same native Java method concurrently. Under low concurrency (1‑2 threads) marshalling adds ~0.2‑0.5 ms per call, but with eight or more threads the average latency rises to 2‑5 ms because of lock contention protecting the JNIEnv pointer and mono runtime GC safe‑p
Xamarin.Auth or MSAL: Trade‑off Between Manual Token Refresh and Automatic Cache Persistence for Least‑Privilege Access
When implementing least‑privilege authentication in a Xamarin.Forms app, developers must decide how to handle token expiration and cache persistence across app updates. Xamarin.Auth stores tokens in platform‑specific secure stores and requires manual refresh logic, which can lead to stale tokens if not correctly implemented. MSAL automatically acquires and r