I found the following attribute in one xml layout:
android:background="@null"
What is the meaning of @null? What is the difference between specifying background=”@null” and omitting background attribute?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
If I remember correctly, omitting the background attribute sets a default background. However, explicitly setting background to “@null” removes the background, causing whatever is below the element to be shown. In particular, if you for instance set the background of a Button to null, the border of the button will also be gone (and the button effectively will not really look like a button at all).