This video presents the life cycle of an Android activity—the Android component that most users think of as an app. It covers the life-cycle methods and states of the activity.
- [Instructor] Of course, moving from the generic…life cycle model to that of a specific platform…adds complexity and Android is no different.…When you think of an Android app,…you are usually thinking of an instance…of a specific Android component called an activity.…The good news is that an Android activity…has specific methods that you can override…to provide handlers for all the life cycle events.…The process begins with the user launching the app.…The Android system will then call the on create,…on start, and on resume methods.…
These three methods initialize the app.…All life cycle methods are referred to…as callback methods.…Meaning the OS will call the specific method…after an event occurs.…The on create call back is called only once.…Here is where you should build a UI…and initialize any resources needed by the app.…On create is called when the app is first started…and enters the created state.…After on create finishes, the activity enters…the started state.…The on start call back is called…just before an activity becomes visible to the user.…
- iOS platform architecture
- Generic smartphone app life cycle
- iOS app life cycle
- Object-oriented programming (OOP) and Swift
- Inheritance vs. delegation
- Getting started with Xcode
- Xcode vs. Android Studio
- Creating a simple Swift app
Skill Level Beginner
1. Platform Architectures
iOS platform architecture3m 12s
2. App Life Cycle
3. Programming Language
4. Development Tools
5. Build an App
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