RoboAlex
RoboAlex

Reputation: 5015

How to create project which extends view interface of Android?

I like to implement Mandelbrot fractal application for learning Android. I have seen some example, In which the application extends "android.view.View" interface.( not "android.app.Activity" interface). In eclipse, with Android 3.2, How can I create a project which extends "android.view.View" interface?

See this. Color gradient for Mandelbrot Android application doesn't work

thank you, Regards, Robo

Upvotes: 0

Views: 722

Answers (1)

Darth Beleg
Darth Beleg

Reputation: 2667

It is not possible. View corresponds to GUI element like button or text field. Activity is a part of application that is responsible for displaying a GUI and managing its lifecycle. You can visit the Developer Guide for further explanation.

In the example you provided the View was definitely a part of layout of some Activity.

By the way, Activity and View aren't interfaces, the are classes. The interface word has a special meaning in Java: it is a declaration of operations that can be performed on the object that implements the interface but the actual implementation should be provided by the class of the object

Upvotes: 1

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