How to create own XML attribute in Custom View (Android)

Hey guys!

In this article, I’m gonna show you how you can create your XML attribute. app:is_underlined=false like this, cool….😎 isn’t it? We will be making a custom view in which we will create an attribute to underline the text.

Just follow the steps along with me. 👀

Step 1: Create an XML file that will hold the attribute reference. You can define the name and input type of the attribute in <attr … tag.

Here, the name of our attribute is is_underlined and the input type is boolean which accepts either true or false.

Step 2: Now, Let’s create our custom view with the help of the following piece of code.

Code for custom TextView

Now, I am going to explain each and everything in the above code.

obtainStyledAttributes: This method is used to getTypedArray by passing the attribute set and the reference of the styleable that we have created at first.

getBoolean: We used this method to get the value of the boolean passed in the XML file. We gave the default value as false.

Paint.UNDERLINE_TEXT_FLAG: We used this to underline the text.

recycle(): It recycles the TypedArray, to be re-used by a later caller. After calling this function you must not ever touch the typed array again.

Step 3: Okay! Now it's time to use the custom view with is_underlined attribute.

Yeah, You did it… 🙌

Thanks for your time 😁

Enjoy learning🥂