Improve demo with LaucherActivity

[skydoves]

Improve demo with LaucherActivity.

Summary by CodeRabbit

• New Features
  • Introduced a new launcher screen as the primary entry point for the app, allowing users to easily navigate to different demo experiences
  • Users can now choose from three distinct demo options through an intuitive navigation interface on launch
  • Expanded the color palette with additional resources to enhance visual design and consistency across the application

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[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

This PR restructures the application's entry point by introducing a new LauncherActivity as the main launcher entry, adding a Compose-based UI with navigation buttons to three destination activities (MainActivity, CustomActivity, ComposeActivity), providing both XML and Compose layout options, and expanding the app's color palette with twelve new color resource definitions.

Changes

Cohort / File(s)	Summary
Manifest Configuration app/src/main/AndroidManifest.xml	Restructured launcher setup: introduced LauncherActivity as the MAIN/LAUNCHER entry point with export attribute; repositioned MainActivity and CustomActivity declarations after launcher activity; moved ComposeActivity to a separate declaration with only theme attribute
Launcher Activity Implementation app/src/main/kotlin/com/skydoves/balloondemo/LauncherActivity.kt	New Compose-based launcher activity extending ComponentActivity; displays centered column with title "Balloon Demo" and three full-width navigation buttons launching MainActivity, CustomActivity, and ComposeActivity via explicit intents
Layout Resources app/src/main/res/layout/activity_launcher.xml	New XML layout resource defining a centered LinearLayout with title TextView and three full-width buttons for MainActivity (XML), CustomActivity (XML), and ComposeActivity (Compose) navigation
Color Resources app/src/main/res/values/colors.xml	Added twelve new color definitions: purple variants (\#9C27B0, \#CE93D8), teal variants (\#009688, \#80CBC4), orange variants (\#FF5722, \#FFAB91), green variants (\#4CAF50, \#A5D6A7), indigo variants (\#3F51B5, \#9FA8DA), and gradient colors (\#667eea, \#764ba2)

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Areas requiring attention:

• Verify LauncherActivity is correctly registered as the MAIN/LAUNCHER entry point in the manifest
• Confirm all three navigation intents (MainActivity, CustomActivity, ComposeActivity) resolve correctly and match their declared activities
• Validate Compose UI layout, spacing (48dp and 16dp spacers), and button styling match design expectations
• Ensure XML layout resource is unused or properly deprecated if Compose version is preferred

Poem

🐰 A launcher hops in, fresh and bright,
Three buttons gleaming, set just right,
To MainActivity, Custom, Compose they spring,
With purple, teal, and colors to sing! 🌈
The demo now dances with vibrant new hues!

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch demo/launcher

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📜 Recent review details

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between a116972 and bd24bba.

📒 Files selected for processing (4)

• app/src/main/AndroidManifest.xml (1 hunks)
• app/src/main/kotlin/com/skydoves/balloondemo/LauncherActivity.kt (1 hunks)
• app/src/main/res/layout/activity_launcher.xml (1 hunks)
• app/src/main/res/values/colors.xml (1 hunks)

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