ActivityLog Test - Activity Stopped and Restarted

This section provides a tutorial example on how to test activity lifecycle with the ActivityLog application in case user stops the activity by clicking the home icon and restart it again by clicking its name in the application list.

ActivityLog Test #2 - Run ActivityLog and restart it later.

1. Click on the application icon on the emulator's home screen. "ActivityLog" is listed in the application list.

2. Click on "ActivityLog" to start the application. Message "Activity created" is displayed on the screen.

3. Click on the "home" button on the emulator control panel. The emulator home screen is displayed again.

4. Click on the application icon on the emulator's home screen. Then click on "ActivityLog" in the application list again. Message "Activity created" is displayed again.

5. Run "adb shell" to view the log file:

# cat Activity.log
cat Activity.log
Sun Mar 01 19:15:28 2015: Checkpoint #1 - onCreate() called
Sun Mar 01 19:15:28 2015: Checkpoint #2 - onStart() called
Sun Mar 01 19:15:28 2015: Checkpoint #3 - onResume() called
Sun Mar 01 19:15:35 2015: Checkpoint #4 - onPause() called
Sun Mar 01 19:15:37 2015: Checkpoint #5 - onStop() called
Sun Mar 01 19:15:47 2015: Checkpoint #6a - onRestart() called
Sun Mar 01 19:15:47 2015: Checkpoint #2 - onStart() called
Sun Mar 01 19:15:47 2015: Checkpoint #3 - onResume() called

Conclusions:

Last update: 2015.

Table of Contents

 About This Book

 Installing JDK 1.8 on Windows System

 Installation of Android SDK R24 and Emulator

 Installing Apache Ant 1.9 on Windows System

 Developing First Android Application - HelloAndroid

 Android Application Package (APK) Files

 Android Debug Bridge (adb) Tool

 Android File Systems

 Android 4.0.3 File Systems

 AboutAndroid - Application to Retrieve System Information

android.app.Activity Class and Activity Lifecycle

 Introduction of Activity Lifecycle

 onCreate() and Other Callback Methods

 ActivityLog - Application to Create Log File

 Viewing Activity Log File with "cat" Command in "adb shell"

 Implementing Activity Callback Methods

 ActivityLog Test - Activity Terminated by User

ActivityLog Test - Activity Stopped and Restarted

 ActivityLog Test - Activity Paused and Resumed

 View Objects and Layout Resource Files

 Using "adb logcat" Command for Debugging

 Build Process and Package File Content

 Building Your Own Web Browser

 Android Command Line Shell

 Samsung Galaxy Tab 3 Mini Tablet

 USB Debugging Applications on Samsung Tablet

 Android Tablet - LG-V905R

 USB Debugging Applications on LG-V905R Tablet

 Android Phone - LG-P925g

 USB Debugging Applications on LG-P925g Phone

 Outdated Tutorials

 References

 PDF Printing Version