android.app.Activity Class and Activity Lifecycle

This chapter provides tutorial notes on android.app.Activity class and activity lifecycle. Topics include introduction of activity states, lifetime periods and activity callback methods; creating log file in the application's private file folder; implementing activity callback methods; writing example application ActivityLog to test application 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

Conclusions:

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

 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 Outdated Tutorials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