CODEWITHSUNDEEP
androidlistviewnullpointerexceptionlayoutparams
yrazlik
yrazlik

Reputation: 10777

How to add margin to listview header?

I am trying to add a textview to listview header and give left margin to it. Here is what i do:

//create a textview, not inflating from layout
TextView selectAdressText = new TextView(getContext());
selectAdressText.setTextSize(12);
selectAdressText.setTextColor(getResources().getColor(R.color.text_black));

LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
lp.setMargins(10, 0, 10, 10);
selectAdressText.setLayoutParams(lp);   

addressesLV.addHeaderView(selectAdressText);

But it gives nullpointerexception. I also tried AbsListViewLayout params instead of LinearLayoutLayoutParams but it has no setMargins method. So which LayoutParams should i use for this?

Thanks

Upvotes: 2

Views: 2296

Answers (3)

sockeqwe
sockeqwe

Reputation: 15929

Margin is overridden by ListView, so you can't use margin directly on the root view of your xml layout. Use padding instead.

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:paddingTop="10dp"
    android:paddingBottom="10dp"
    android:paddingRight="10dp"
    android:paddingLeft="0dp"/>

or wrap a layout (as root node) around it:

<Framelayout
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">


   <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginTop="10dp"
      android:layout_marginBottom="10dp"
      android:layout_marginRight="10dp"
      android:layout_marginLeft="0dp"/>

</Framelayout>

Upvotes: 1

ovluca
ovluca

Reputation: 291

just create your textView in xml 

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dp"
    android:layout_marginBottom="10dp"
    android:layout_marginRight="10dp"
    android:layout_marginLeft="0dp"/>



View view = inflater.inflate(R.layout.textView, yourListview, false);
yourListview.addHeaderView(view);

Upvotes: 0

birds
birds

Reputation: 187

LinearLayout header = new LinearLayout(this);
LinearLayout.LayoutParams lp = new  LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
lp.setMargins(10, 0, 10, 10);
TextView t = new TextView(this);
header.addView(t,lp);
addressesLV.addHeaderView(header);
try it.

Upvotes: 7

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