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Extensive Open-Source Guides for Android Developers

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Top Related Projects

A curated list of awesome Android UI/UX libraries

A collection of samples to discuss and showcase different architectural tools and patterns for Android apps.

An awesome list that curates the best Flutter libraries, tools, tutorials, articles and more.

A collection of samples to discuss and showcase different architectural tools and patterns for Android apps.

Quick Overview

The codepath/android_guides repository is a comprehensive collection of Android development guides and tutorials. It covers a wide range of topics from basic to advanced concepts, providing developers with a valuable resource for learning and improving their Android development skills.

Pros

  • Extensive coverage of Android development topics
  • Well-organized and easy to navigate
  • Regularly updated to include the latest Android features and best practices
  • Free and open-source resource for the community

Cons

  • Some guides may become outdated as Android evolves rapidly
  • Lacks interactive elements or hands-on exercises
  • May not cover every niche or specialized topic in Android development
  • Requires external resources for more in-depth understanding of certain concepts

Getting Started

To get started with the Android guides:

  1. Visit the repository at https://github.com/codepath/android_guides
  2. Browse the guides in the guides directory
  3. Choose a topic you're interested in and click on the corresponding Markdown file
  4. Read the guide and follow along with any code examples provided
  5. For a more structured approach, start with the "Beginning Android Resources" guide

Note: This is not a code library, so there are no code examples or quick start instructions to provide. The repository consists of Markdown files containing guides and tutorials for Android development.

Competitor Comparisons

A curated list of awesome Android UI/UX libraries

Pros of awesome-android-ui

  • Focuses specifically on UI components and libraries
  • Provides a curated list of visually appealing and innovative UI elements
  • Regularly updated with new and trending UI libraries

Cons of awesome-android-ui

  • Less comprehensive in terms of overall Android development topics
  • Lacks in-depth tutorials or explanations for implementing the listed UI components
  • May overwhelm beginners with too many options without proper guidance

Code comparison

android_guides:

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}

awesome-android-ui:

<com.github.florent37.materialviewpager.MaterialViewPager
    android:id="@+id/materialViewPager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:viewpager_logo="@layout/header_logo"
    app:viewpager_pagerTitleStrip="@layout/material_view_pager_pagertitlestrip_newstand"
    app:viewpager_logoMarginTop="100dp"
    app:viewpager_color="@color/colorPrimary"
    app:viewpager_headerHeight="200dp"
    app:viewpager_headerAlpha="1.0"
    app:viewpager_hideLogoWithFade="false"
    app:viewpager_hideToolbarAndTitle="true"
    app:viewpager_enableToolbarElevation="true"
    app:viewpager_parallaxHeaderFactor="1.5"
    app:viewpager_headerAdditionalHeight="20dp"
    app:viewpager_displayHeaderBackground="true"
    app:viewpager_transparentToolbar="true"
    app:viewpager_animatedHeaderImage="true"
    app:viewpager_disableToolbar="false"
    app:viewpager_mode="preview" />

A collection of samples to discuss and showcase different architectural tools and patterns for Android apps.

Pros of architecture-samples

  • Official Google repository, ensuring up-to-date and best practices
  • Focuses on different architectural approaches (MVI, MVVM, etc.)
  • Provides multiple sample apps demonstrating various architecture patterns

Cons of architecture-samples

  • More advanced content, potentially overwhelming for beginners
  • Narrower focus on architecture, less coverage of general Android development topics
  • Fewer explanatory resources compared to comprehensive guides

Code Comparison

architecture-samples (MVVM pattern):

class TasksViewModel(
    private val tasksRepository: TasksRepository
) : ViewModel() {
    private val _items = MutableLiveData<List<Task>>().apply { value = emptyList() }
    val items: LiveData<List<Task>> = _items
}

android_guides (basic Activity):

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}

An awesome list that curates the best Flutter libraries, tools, tutorials, articles and more.

Pros of awesome-flutter

  • More comprehensive and up-to-date resource list for Flutter development
  • Includes a wider range of topics, from beginner to advanced concepts
  • Actively maintained with frequent updates and contributions

Cons of awesome-flutter

  • Less structured learning path compared to android_guides
  • May be overwhelming for beginners due to the sheer amount of resources
  • Lacks in-depth explanations and tutorials found in android_guides

Code Comparison

android_guides (Java):

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}

awesome-flutter (Dart):

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text('Flutter App')),
        body: Center(child: Text('Hello, World!')),
      ),
    );
  }
}

The code comparison showcases the differences in syntax and structure between Android (Java) and Flutter (Dart) for creating a basic app. Flutter's code is more concise and declarative, while Android's code follows a more traditional object-oriented approach.

A collection of samples to discuss and showcase different architectural tools and patterns for Android apps.

Pros of architecture-samples

  • Official Google repository, ensuring up-to-date and best practices
  • Focuses on different architectural approaches (MVI, MVVM, etc.)
  • Provides multiple sample apps demonstrating various architecture patterns

Cons of architecture-samples

  • More advanced content, potentially overwhelming for beginners
  • Narrower focus on architecture, less coverage of general Android development topics
  • Fewer explanatory resources compared to comprehensive guides

Code Comparison

architecture-samples (MVVM pattern):

class TasksViewModel(
    private val tasksRepository: TasksRepository
) : ViewModel() {
    private val _items = MutableLiveData<List<Task>>().apply { value = emptyList() }
    val items: LiveData<List<Task>> = _items
}

android_guides (basic Activity):

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}

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README

CodePath Android Cliffnotes

Welcome to the open-source Codepath Android Cliffnotes! Our goal is to become the central crowdsourced resource for complete and up-to-date Android content and tutorials. Just take me to the notes!

CodePath

We have guides for everyone whether you are beginner, intermediate or advanced. Want to learn how to use the ActionBar or the ins and outs of fragments? We got that. Want to learn about testing or how to build flexible user interfaces for multiple devices? We got you covered. We don't waste time with the "theoretical approach" from a book. We cover exactly the things we use every day as we are developing apps for contracts.

Need Help? Please join the google groups for these guides where you can post related questions.

Motivation

Ever been frustrated finding information on outdated one-off blog posts and tutorials that has since become irrelevant? How many times have you been googling only to find your answer on a 2 year old Stack Overflow post? We believe there's got to be a better way. Why not have a community to work together in creating useful and detailed documentation for every aspect of Android development(or any platform)?

Read about our mission to change the way engineers learn new technologies and we would love for you to get involved! In addition, we are a fledgling startup so if you like this guide and what we are trying to do, please consider following us on twitter @codepath!

Live in San Francisco?

Located in the San Francisco Bay Area and interested in learning with others in a more structured program? Check out our local Android or iOS meetup events. We have free evening events and at-cost 1-day workshops to make learning social and connect you with others passionate about mobile.

If you are an experienced engineer (2+ years of professional experience in software development) and serious about learning Android, check out our free evening 8-week Android bootcamp. Learn how to build mobile apps while collaborating with other engineers and designers. Work on solving important problems for non-profits with our free 8-week accelerated evening mobile boot camp. Learn more and apply here.

We Need Your Help!

We need your help making the guides even better. In particular, here are the easiest ways to contribute:

  1. Update Guides. Review existing guides and update outdated content, add tips or add/update images
  2. Fill Out Guides. Find guides that are simply stubs and fill them out with content.
  3. Create New Guides. Review the missing topics list and create new topic guides.

We maintain a master missing topics list that contains the most important missing topics. Also, look for items in the cliff notes with the Needs Attention mark which indicates the guide needs some love. If you see a topic you'd like added, please check the issues for this repository to let us know.

If you are interested in contributing to our guides, please check out our contribution guidelines first.

Contributors

These guides were originally created and adapted by Nathan Esquenazi as a part of our CodePath training and bootcamps. We have also had contributions from many community members including: