How to remove default layout's padding/margin

Question

I have the following layout files:

activity_main.xml

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:map="http://schemas.android.com/apk/res-auto"
    android:id="@+id/frame_container"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_marginLeft="0px"
    android:layout_marginRight="0px"
    android:layout_marginTop="0px"
    android:padding="0dp"
    >
    ...
</FrameLayout>

And some other fragments like

fragment_init.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/fragmentInit"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="0dp"
    android:layout_marginTop="0px"
    android:layout_marginLeft="0px"
    android:layout_marginRight="0px"
    android:background="#549F07"
    >

    <TextView
        ... 
    >
    ...
</RelativeLayout>

Everything looks fine in Lint, but when I execute my application on my Nexus 7 5.0.2, every container is displayed with a padding or margin of maybe 10 px.

This is illustrated by the arrows on the following image

How to force the layouts to not add these padding/margin?

Edit: I should add how I insert my fragment.

Activiy

 public class MainActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
        fragmentTransaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
        fragmentTransaction.replace(R.id.frame_container, new Fragment_init(), "Fragment_init").commit();
    }
}

and I don't use any dimens anywhere... Thks

It shouldn't show any padding or margin. What container are you actually replacing with your fragment's layout? And please refrain from using pixels - it's not good practice on Android. — Darwind, Mar 31 '15 at 09:35
@Darwin, I just wanted to verify if I can override default margin/padding definitions but obviously, it doesn't change anything. — fralbo, Mar 31 '15 at 09:49
But there isn't any "default padding/margin" unless you set something yourself :-) EDIT: I see you added the `onCreate` method. Show us the XML for `R.id.frame_container` please... — Darwind, Mar 31 '15 at 09:50
@Arlind: Thks I effectively have activity_horizontal_margin and activity_vertical_margin set to 16dp in dimens.xml — fralbo, Mar 31 '15 at 09:59
@caBBAlainB Change that to 0dp and that should do the trick, but I really dont know where you are using activity_horizontal_margin and activity_vertical_margin ? — Arlind Hajredinaj, Mar 31 '15 at 11:51
@Arlind now eclipse creates a layout with the following default attributes: — fralbo, Mar 31 '15 at 13:17
Yes exactly but where in your code are you using android:paddingLeft="@dimen/activity_horizontal_margin" — Arlind Hajredinaj, Mar 31 '15 at 13:40

Arlind Hajredinaj · Accepted Answer · 2015-08-25T07:40:39.963

31

Go into this file res/values/dimens.xml and change the values to 0dp just like in the code below.

<dimen name="activity_horizontal_margin">0dp</dimen>
<dimen name="activity_vertical_margin">0dp</dimen>

edited Aug 25 '15 at 07:40

answered Mar 31 '15 at 13:58

Arlind Hajredinaj

8,380
3
30
45

It's what I did. thks – fralbo Mar 31 '15 at 14:07
Where does the XML reference dimens.xml? – Ruchir Baronia Jun 16 '16 at 17:18
It references it from the main_activity.xml which is created by default when opening a new project. But it the question the dimens.xml is not referenced anywhere I just took a wild guess and apparently I got it right :). – Arlind Hajredinaj Jun 17 '16 at 07:34
1

That's exacly what I am looking for. Thank you so much! – Darós Dec 13 '17 at 20:21

score 1 · Answer 2 · answered Jul 14 '17 at 05:31

I know this is already answered question but, i just come across such an issue, the answer helped but not completely, as there was a right padding. I found out that, it is because of the padding set in the Theme i used. It might be helpful for those still see the padding. All you need to do is remove it.

How to remove default layout's padding/margin

2 Answers2

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