I think this will help you..
LinearLayout.LayoutParams textParam = new LinearLayout.LayoutParams
(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT, 1.0f);
textView.setLayoutParams(textParam);
**Try this way:**
LinearLayout.LayoutParams textParam = new LinearLayout.LayoutParams
(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT, 1.0f);
textView.setLayoutParams(textParam);