In this example, I want to show you how to make a progress bar, just like progress bar in other programming language. Android, itself, has provide progressbar from android.widget.ProgressBar class. But, in this example we will learn how to make a progress bar ourselves by inheriting from View class Android permits us to build custom component to be created. One of the basic component can be inherited to make custom component is View class from android.view.View. Just like other java based program, we can create custom component to make a new component with specific need, to add functionality, to make a new visualization, or just to make easier / wrapper from previous component.
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