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androidpadding
Madhumathi
Madhumathi

Reputation: 11

Padding value in android

What is the meaning of this line of code?

android padding Right = "@ dimen /activity_horizontal_margin".

What is @dimen referring to?

Upvotes: 0

Views: 1309

Answers (2)

Ishara Amarasekera
Ishara Amarasekera

Reputation: 1449

dimen.xml is the file which you can set constant values for dimensions.

<resources>
   <!-- Default screen margins, per the Android Design guidelines. -->
   <dimen name="activity_horizontal_margin">16dp</dimen>
   <dimen name="activity_vertical_margin">16dp</dimen> 
</resources>

It is usually created inside /res/values folder. If you don't find it there you can create and add values.

You may refer the following link for more details.

https://developer.android.com/samples/BasicSyncAdapter/res/values/dimen.html

Upvotes: 1

Surya Prakash Kushawah
Surya Prakash Kushawah

Reputation: 3201

you use the dimens file like this so that you can easily set many things to the same value (like a constant in code), or so you can override the value easily for different screen sizes.

dimen is located in / res / values / in studio project like below 

dimen.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>
    <dimen name="action_button_min_width">56dp</dimen>
    <dimen name="indeterminate_progress_size">32dp</dimen>
</resources>

Learn more about project structure in android studio https://developer.android.com/studio/projects/index.html

Upvotes: 4

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