CODEWITHSUNDEEP
androidandroid-layout
user1276092
user1276092

Reputation: 513

How to set margins for Layout programatically

I declared a linearlayout with horizontal orientation programatically.
How to set width,height,margins for that layout dynamically.
I tried like the below : 

         leftMargin = 40;
         rightMargin = 20;
         widgetWidth = 300;
         topMargin = 5;
         bottomMargin = 5;
         widgetHeight = 100;
        LayoutParams params = new LayoutParams((int) widgetWidth, (int) widgetHeight);
        params.setMargins((int) leftMargin, (int) topMargin,
                (int) rightMargin, (int) bottomMargin);
        newHorizontalLayout = new LinearLayout(ctx);
        newHorizontalLayout.setOrientation(LinearLayout.HORIZONTAL);
        newHorizontalLayout.setLayoutParams(params);


But I'm getting null pointer exception. can anyone help me in sorting out his issue.

Upvotes: 0

Views: 251

Answers (1)

Avijit
Avijit

Reputation: 3824

First of all you have to import correct layout. Here is a example of table-row layoutParams:

To set height and width:

TextView tb_row_proName;
android.widget.TableRow.LayoutParams lp_pro_name = new android.widget.TableRow.LayoutParams(android.widget.TableRow.LayoutParams.WRAP_CONTENT,
android.widget.TableRow.LayoutParams.WRAP_CONTENT);         
tb_row_proName.setLayoutParams(lp_pro_name);

To set margin:

int margin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, r.getDisplayMetrics());
lp_pro_name.bottomMargin = margin;

Upvotes: 1

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