set linear layout elements spacing dynamically android

Question

I am creating a layout dynamically, I am using

LinearLayout layout = new LinearLayout(this);             
layout.setOrientation(LinearLayout.VERTICAL);

to place my elements one below the other. But for my header, i am using a new layout

LinearLayout layout_header = new LinearLayout(this);             
layout.setOrientation(LinearLayout.HORIZONTAL);

and adding this in the view of the LinearLayout layout. But in LinearLayout layout_header, i have two buttons and i want one of them to be in total left and the other in total right. But both are coming side by side, i tried to include padding/margins but didn work.

I also created a layout params for both the buttons and tried adding margins/gravity/padding individually, but still did not work.

Please help how to proceed to place these buttons at two separate corners.

score 1 · Accepted Answer · edited Mar 14 '13 at 15:06

1

If you want one thing at the far left and one at the far right, its easier to use a relative layout. Just make the first android:layout_alignParentRight="true" and the other android:layout_alignParentLeft="true"

edited Mar 14 '13 at 15:06

Pragnani

20,075
6
49
74

answered Mar 14 '13 at 15:06

Gabe Sechan

90,003
9
87
127

thanks, but can we set this programatically?? i am generating the view by code, relative layout is fine for me! – bharath Mar 14 '13 at 16:20
1

Yes, you'd have to put it in a RelativeLayout and use the RelativeLayout.LayoutParams class to specify the constraints above. Just add the right rule to the params for each. – Gabe Sechan Mar 14 '13 at 16:23

score 0 · Answer 2 · answered Mar 14 '13 at 15:10

I'd recommend Gabe's answer, since that's precisely what RelativeLayouts are for. However, if you want to keep it a LinearLayout for whatever reason, you can place an invisible View between your two Buttons:

<Button
    ... />
<View
    android:layout_width="0dp"
    android:layout_height="match_parent"
    android:layout_weight="1" />
<Button
    ... />

The layout_weight attribute specifies that it should take up the remaining room. Just be sure to use 0dp for the width, so that doesn't interfere.

set linear layout elements spacing dynamically android

2 Answers2