MauiPerfDebugOverlay

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MauiPerfDebugOverlay

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A real-time performance overlay for .NET MAUI that tracks FPS, CPU, memory, GC, battery, and network usage, while providing a load-time component tree—all without major changes to your app code.

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// repository documentation

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\## PerformanceDebugOverlay (v1.0.6)
---

[![NuGet Version](https://img.shields.io/nuget/v/PerformanceDebugOverlay.svg)](https://www.nuget.org/packages/PerformanceDebugOverlay/)
[![NuGet Downloads](https://img.shields.io/nuget/dt/PerformanceDebugOverlay.svg)](https://www.nuget.org/packages/PerformanceDebugOverlay/)

A real-time performance overlay for .NET MAUI that tracks FPS, CPU, memory, GC, battery, and network usage, while providing a load-time component tree—all without major changes to your app code.

![Overlay Screenshot](https://raw.githubusercontent.com/vankraster/MauiPerfDebugOverlay/refs/heads/master/MauiPerfDebugOverlay.SampleApp/overlay/overlay-screenshot-106.png)

\## Features
---

FPS \& FrameTime – calculated using EMA (Exponential Moving Average)

CPU usage – per-process CPU utilization

Memory usage – current memory and allocations/sec

GC activity – collections per generation

Battery consumption – approximate consumption in mW (Android only)

Network stats – total requests, bytes sent/received, average request time

Overall score – 0–10 score based on all metrics

Compact / Expanded view – show/hide individual metrics

Live drag \& reposition – move the overlay freely at runtime

Plug-and-play integration – works globally without modifying existing HTTP code

Tree View of Load-Time Components with Metrics

Collapse/Expand tree view items

Scrollable TreeView

\## Installation
---

Add the NuGet package to your project:

dotnet add package PerformanceDebugOverlay --version 1.0.6

---

\## Configuration

in MauiProgram.cs

```bash

using MauiPerfDebugOverlay.Extensions;
using MauiPerfDebugOverlay.Models;

public static class MauiProgram
{

public static MauiApp CreateMauiApp()
  {
     var builder = MauiApp.CreateBuilder();

builder
         .UseMauiApp<App>()
         .UsePerformanceDebugOverlay(new PerformanceOverlayOptions

{
             ShowBatteryUsage = true,
             ShowNetworkStats = true,
             ShowAlloc\_GC = true,
             ShowCPU\_Usage = true,
             ShowFrame = true,
             ShowMemory = true,
             ShowLoadTime = true,
             LoadTimeDanger = 800,
             LoadTimeWarning = 1000

});
     return builder.Build();
  }
}

```

Options are optional and can be enabled or disabled individually.

Activation in Your App

In App.xaml.cs:

```bash

public App()
{
 InitializeComponent();

// Enable the PerformanceOverlay globally

PerformanceOverlayManager.Instance.Enable();
 MainPage = new AppShell();
}

```

The overlay will appear automatically and is interactive.

\## Notes
---

Battery consumption metrics are only available on Android. Other platforms will display N/A.

Networking metrics automatically monitor all HttpClient and HttpWebRequest requests without modifying existing code.

Overlay is fully configurable and extensible.

\## Simple API
---

```bash

PerformanceOverlayManager.Instance.Enable() – show the overlay

PerformanceOverlayManager.Instance.Disable() – hide the overlay

```

Configuration is done via PerformanceOverlayOptions to customize which metrics are displayed

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