Fix LayoutInflater.From for remapped inflater types

[simonrozsival]

Summary

LayoutInflater.From(Context) can return null when Android remapping redirects android.view.LayoutInflater to a Java subclass/proxy type, even though the Java object is a valid layout inflater. This breaks callers such as MAUI that use LayoutInflater.From(activity) during startup.

This replaces the generated LayoutInflater.from(Context) binding with a handwritten implementation that delegates to FromContext(Context). FromContext now obtains the layout_inflater system service and, if the managed object is not directly typed as LayoutInflater, wraps the live Java handle as LayoutInflater.

Changes

• Suppress the generated android.view.LayoutInflater.from(Context) binding via metadata.
• Add a handwritten registered LayoutInflater.From(Context) method.
• Make FromContext(Context) handle remapped/proxy inflater instances by wrapping the service handle.
• Extend the existing remap test to cover both From(...) and FromContext(...).

Validation

• Rebuilt src/Mono.Android/Mono.Android.csproj locally.
• Decompiled the rebuilt Mono.Android.dll and confirmed LayoutInflater.From(Context) delegates to FromContext(Context).
• Built and launched a focused Android remap test app using the local workload on emulator-5554; the app showed PASS with android/view/LayoutInflater remapped to a Java subclass.

Note: the full Mono.Android.NET-Tests APK packaging path is currently blocked in this checkout by an unrelated duplicate Java class from the Java.Interop test artifact (net.dot.jni.test.AndroidInterface).

[Copilot]

Pull request overview

This PR fixes Android.Views.LayoutInflater.From(Context) returning null when Android remapping causes the runtime to surface a subclass/proxy instance that isn’t directly typed as LayoutInflater on the managed side, which can break early-startup callers (e.g., MAUI).

Changes:

• Suppresses the generated binding for android.view.LayoutInflater.from(Context) via metadata so it can be replaced safely.
• Adds a handwritten [Register]ed LayoutInflater.From(Context) that delegates to FromContext(Context).
• Updates FromContext(Context) to wrap remapped/proxy inflater instances by re-wrapping the Java handle as LayoutInflater, and extends the existing remap test to cover both From(...) and FromContext(...).

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
tests/Mono.Android-Tests/Mono.Android-Tests/Android.Views/LayoutInflaterTest.cs	Extends remap test to assert both LayoutInflater.From(...) and FromContext(...) return non-null.
src/Mono.Android/metadata	Removes the generated LayoutInflater.from(Context) method from the binding surface so a handwritten implementation can replace it.
src/Mono.Android/Android.Views/LayoutInflater.cs	Adds handwritten From(Context) and updates FromContext(Context) to handle remapped/proxy service instances by wrapping the live Java handle.

[simonrozsival]

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