project_number

project_id

storage_bucket

mobilesdk_app_id

package_name

Make sure "com.example.educative.hello" is the package name while registering the project

oauth_client_id

current_key

services_client_id

Gain insights into creating efficient Android apps. Learn about layouts, UI components, lifecycle management, and Firebase integration. Delve into practical coding challenges and quizzes to solidify your skills.

educative-android.tar.gz

Android

This course covers various aspects of building Android applications, focusing on creating robust and efficient apps. The course is divided into several modules, accompanied by quizzes and coding challenges that will test your understanding of the course.

You’ll start with an overview, which introduces the Android platform and its key features. Then, you will learn the various Android layouts and UI components—how to create and use different layouts, fragments, and custom views. Moreover, you’ll practically learn about activity and lifecycle management, and how to handle images and work with RecyclerViews.

Next, the course covers Android UI components such as bottom navigation bars, alert dialogs, and web views. You’ll learn about intents, notifications, threading, services, app permissions, user location, and Firebase services—including authentication, real-time databases, storage, and cloud messaging.

By the end of the course, you will be able to create functional and well-performing Android applications.

Android Development Masterclass

# Introduction

The Android SDK Platform-Tools package offers a rich command-line tool, **Android Debug Bridge (ADB)**, that lets us communicate with your Android device. This tool allows you to install and debug applications using an easy-to-use command and exposes a UNIX shell that lets you run various commands.

# Connecting device with ADB

To use ADB with a USB-connected Android device, we need to ensure that “USB Debugging” is enabled in the device system settings under “Developer Options.”

> **Note:** This option is hidden by default. To make it visible, go to “Settings > About phone” and tap “Build number” seven times.

We can confirm if the ADB connection was established by running the following command:

```bash
$ adb devices
```

> **Note:** To execute this command, make sure that `android_sdk/platform-tools/` is added to our `PATH` variable. 

# Common ADB commands
Now that the ADB is connected with our Android device, let’s go through some common commands that we should be familiar with.


## Installing an app

We can use the `install` command to install an application to the connected device. 

```
$ adb install path_to_apk
```

If we have multiple devices connected to ADB, we can specify the name of the device while issuing the command.

```
$ adb devices
List of devices attached
emulator-5554 device
emulator-5555 device

$ adb -s emulator-5555 install path_to_apk
```

## Stop/start the ADB server
In some situations, we might want to stop the ADB server and restart it. Often during long periods of usage, ADB might stop working properly or might not show the connected devices. In such a scenario, these commands are quite useful:

```
adb kill-server
adb start-server
adb devices
```

## Copying files to/from the device

We can copy files from the Android device to our development machine using the `pull` command. 

```
adb pull /sdcard/foo.txt /home/username/foo.txt
```

Similarly, we can copy files from our development machine to the Android device using the `push` command. 

```
adb push /home/username/foo.txt /sdcard/foo.txt
```

## Calling activity/package manager

ADB can be used to issue commands with the activity manager (`am`) tool to perform various actions, such as start an activity, broadcast an intent, or modify the device's screen properties. 

For example, to start an activity in our app, we can use the following command:

```
adb shell am start -n yourpackagename/.activityname
```

Similarly, we can call the package manager (`pm`) to perform actions and queries on installed app packages. 

For example, to uninstall an app, we can issue the following command:


```
adb shell pm uninstall com.example.appName
```

## Capturing screenshots using ADB

The ADB shell also allows us to capture screenshots of the device display. We can use the `screencap` command to capture a screenshot of the display.

```
adb shell screencap /sdcard/screen.png
```

# Conclusion

This lesson provided a brief introduction to some of the most commonly used ADB commands, which you’ll find useful throughout your Android development journey. Keeping these commands handy speeds up the development immensely since you can easily perform tasks like launching an intent or clearing app data.


Learn how to use Android Debug Bridge (ADB) while developing an Android application. 

Set Up Android Debug Bridge (ADB) for Debugging Our App

Learn how to use Android Debug Bridge (ADB) while developing an Android application.

Overview

Android Layouts and UI Components

Android UI Components

Intents, Notifications, Threading & Services

App Permissions & User Location

Utilizing Firebase Services in Android

Assessment 1: Android Core Concepts

Lifecycle Aware Components

Android Jetpack Components

Data Persistence

Assessment 2: Jetpack Components and Persistence

Networking

Dependency Injection

Performance & Optimization

Android App Testing

Assessment 3: Networking, Performance, and Testing

Conclusion

Appendix

Set Up Android Debug Bridge (ADB) for Debugging Our App

Introduction

Connecting device with ADB