Add PyAndroid Library Documentation - Mobile Development Support

[subhobhai943]

Summary

This PR adds comprehensive documentation for the PyAndroid library, a new Python library designed for Android application development. The PyAndroid library enables Python developers to create Android applications using familiar Python patterns and paradigms.

What's New

• New Documentation: Added Doc/library/pyandroid.rst with complete API documentation
• Mobile Development Support: Introduces Python-based Android development capabilities
• Cross-Platform Development: Enables Python developers to target Android platforms

Library Features

The PyAndroid library (available at https://github.com/subhobhai943/pyandroid-dev) provides:

Core Components

• AndroidApp: Main application lifecycle management
• Activity: Individual screen/view management
• Intent: Inter-component communication

UI Framework

• Complete set of UI components (TextView, Button, EditText)
• Layout system (LinearLayout, RelativeLayout)
• Event handling and user interaction

Utility Classes

• Logger: Enhanced logging for mobile applications
• FileManager: File and storage management
• NetworkManager: HTTP and networking utilities

Example Usage

from pyandroid import AndroidApp, Activity
from pyandroid.ui import LinearLayout, Widget

class MainActivity(Activity):
    def on_start(self):
        layout = LinearLayout("main_layout")
        
        text_view = Widget.create_text_view(
            "hello_text", 
            "Hello from PyAndroid!"
        )
        
        button = Widget.create_button(
            "click_btn", 
            "Click Me",
            on_click=lambda v: print("Button clicked!")
        )
        
        layout.add_view(text_view)
        layout.add_view(button)
        self.add_view("main_layout", layout)

app = AndroidApp("HelloApp", "com.example.hello")
app.register_activity("main", MainActivity)
app.start_activity("main")
app.run()

Documentation Structure

The documentation follows standard Python library documentation format:

• Overview and installation instructions
• Basic usage examples
• Complete API reference for all classes and methods
• Cross-references to related Python modules
• Links to comprehensive examples

Impact

This addition would:

1. Expand Python's Ecosystem: Bring mobile development capabilities to Python
2. Lower Barrier to Entry: Enable Python developers to create Android apps without learning Java/Kotlin
3. Documentation Standards: Follows existing CPython documentation patterns
4. Community Growth: Potentially attract mobile developers to Python

Related Work

The PyAndroid library complements existing Python GUI frameworks:

• tkinter: Desktop GUI applications
• pygame: Game development
• kivy: Cross-platform applications
• pyandroid: Android-specific mobile development

Testing

The library has been tested with:

• Python 3.7+ compatibility
• Cross-platform development workflows
• Complete example applications
• Documentation generation

Future Roadmap

Planned features for the PyAndroid library:

• WebView component integration
• Database support (SQLite)
• Push notification handling
• Camera and media access
• Sensor integration
• Background service support

---

Note: This PR adds documentation for an external library. The actual PyAndroid library is maintained separately at https://github.com/subhobhai943/pyandroid-dev and can be installed via pip install pyandroid-dev.

The documentation addition would help Python developers discover and utilize mobile development capabilities within the Python ecosystem.

---

📚 Documentation preview 📚: https://cpython-previews--140528.org.readthedocs.build/

[python-cla-bot]

All commit authors signed the Contributor License Agreement.

[StanFromIreland]

Hello, we only provide documentation for standard library modules, not for third party ones. Also, please do not open a PR to add your module, see the devguide for more information about the difficult process of doing so: https://devguide.python.org/developer-workflow/stdlib/