how to set padding or margin to linear layout?

Question

I have a linear layout

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout_menu"
android:layout_width="fill_parent"
android:layout_height="70px"
android:layout_alignParentBottom="true"
android:background="@drawable/footer_bar"
android:gravity="center" >
</LinearLayout>

When i set condition

if (constant.getscreenresolution() >= 800) {
    //i want to make it height * 2
}

So how to set the layout params?

Farland

Answer 1

hope this helps you

LinearLayout.LayoutParams layout_param= new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.fill_parent,
                height * 2);
mLayout = (LinearLayout) findViewById(R.id.layout_menu);
mLayout.setLayoutParams(layout_param);

Gayegayel

return me this exception 05-28 13:41:11.125: E/AndroidRuntime(16380): java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams cannot be cast to android.widget.RelativeLayout$LayoutParams my layout is linear but why involve relative? – Farland

Alan, You should use RelativeLayout params instead of LinearLayout params – Ammonal

Answer 2

For padding:

LinearLayout mLayout = (LinearLayout)findViewById(R.id.layout_menu);
mLayout.setPadding(left, top, right, bottom);

Narcissus

Answer 3

LinearLayout mLayout = (LinearLayout)v.findViewById(R.id.ll_winfowindo);
int left= (int) activity.getResources().getDimension(R.dimen._18sdp);
int top=(int) activity.getResources().getDimension(R.dimen._22sdp);
int right=(int) activity.getResources().getDimension(R.dimen._18sdp);
int bottom=(int) activity.getResources().getDimension(R.dimen._34sdp);
mLayout.setPadding(left, top, right, bottom);

Pontine

Answer 4

You shouldn't be doing this. First you're using pixels (px) instead of device independent pixels (dp) Doing things like this create UIs that only work for specific device screen configurations. You need to learn how Android addresses the variations in screen densities so that your app is screen density independent. Start here:

http://developer.android.com/guide/practices/screens_support.html

Sarsenet

i know, that why i had created 2 sets of layout – Farland

Answer 5

Add Margin to Linear Layout :-

LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
     LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);

layoutParams.setMargins(30, 20, 30, 0);

Groovy