Phone dialing keypad of Android custom control

Two custom controls for Android have been written before. One is to simply inherit view, and the other is to implement a provincial and municipal linkage control by inheriting layout. In this article, we will implement a telephone dialing keypad by inheriting ViewGroup. I always have a style. I don't bother to talk a lot. I directly the code on the figure above, and everything is in the comments!

1、MyPhoneCard.java

2. Layout file:

In this way, the keypad in the figure above is realized. This example refers to the implementation of Android's own phone application. It can be seen that in the development, the flexible use of custom controls can achieve unique and charming effects!

The above is the whole content of this article. I hope it will be helpful to your study, and I hope you can support programming tips.