Flutter vs React Native comparison - UI Rendering Compared

Component - Flutter vs React Native comparison

This UI component compares Flutter and React Native by showing two simple buttons labeled "Flutter" and "React Native". When you tap a button, it highlights to show selection, helping you understand how each framework handles UI and interaction.

Widget Tree

Scaffold
├── AppBar
│   └── Text("Flutter vs React Native")
└── Column
    ├── Padding
    │   └── Text("Choose your framework:")
    └── Row
        ├── ElevatedButton("Flutter")
        └── ElevatedButton("React Native")

The Scaffold provides the basic screen structure with an AppBar at the top showing the title. Below, a Column arranges a prompt text and a Row with two buttons side by side. Each button represents one framework for comparison.

Render Trace - 7 Steps

Step 1: Scaffold

Step 2: AppBar

Step 3: Column

Step 4: Text

Step 5: Row

Step 6: ElevatedButton("Flutter")

Step 7: ElevatedButton("React Native")

State Change - Re-render

Trigger:User taps either the "Flutter" or "React Native" button

Before

No framework selected, both buttons have default style

→

After

Tapped button is highlighted, other button returns to default style

Re-renders:The Row containing both buttons re-renders to update button styles

UI Quiz - 3 Questions

What widget arranges the two framework buttons side by side?

A Column

B Stack

C Row

D ListView

Key Insight

Using simple layout widgets like Column and Row helps organize UI elements clearly. Stateful widgets let you update the UI when users interact, such as highlighting a selected button. This example shows how Flutter builds UI with a clear widget tree and updates only parts that change.