Difference between margin and padding

In Android layout development, margin and padding are very common attributes.

The two are spacing, but they are different. Let's make a record.

 

Margin: the outer spacing. For example, if we have a button that is thrown to the linear layout, we set margin to indicate the distance between the button and the screen.

 

Padding: padding. Take this buttton as an example. Think about it. The gravity of the button has left, right, horizontal, and vertical center. But what if we want to center the text in the button vertically to the right? You can use padding. First, we set the button to vertical center, and then set paddingleft = "50dp" (the value here depends on the resolution of your screen, it refers to the spacing between the text and the border inside the button.