This is a complicated topic, so you’re only looking for a high-level summary of the steps involved. However, the developer should make it explicit that you should always subclass the View that most similarly resembles the custom component you want to create very rarely would you extend the View class.
After extending your class, you need to complete the following steps:
– Create a res/values/attrs.xml file and declare the attributes you want to use with your custom View.
– In your View class, add a constructor method, instantiate the Paint object, and retrieve your custom attributes.
– Override either onSizeChanged() or onMeasure().
– Draw your View by overriding onDraw().
Regards,
Nitesh Bavishiya