如何在android中使用代碼在imageview上設置邊距？

Question

我想在運行時創建一個佈局，然後我想在運行時使用循環添加一些imageview。但問題是我使用LayoutParams的餘量根本無法工作。我嘗試了很多，但沒有找到任何解決方案。我也附加我的代碼。

RelativeLayout ll_main_image = new RelativeLayout(activity); 
     ll_main_image.setLayoutParams(new LayoutParams(
       width, 
       width)); 


     for (int i = 0; i < al.get(position).al.size(); i++) { 

      //creating layout for tags 
      ImageView view_tag = new ImageView(activity); 
      LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); 

      int int_margin_left = (int)(((Double.parseDouble(al.get(position).al.get(i).str_x_pos))/100)*width); 
      int int_margin_top = (int)(((Double.parseDouble(al.get(position).al.get(i).str_y_pos))/100)*width); 

      System.out.println("margins perc " + al.get(position).al.get(i).str_x_pos + "/" + al.get(position).al.get(i).str_y_pos + "/" + width); 
      System.out.println("margins " + int_margin_left + "/" + int_margin_top + "/" + width); 

      lp.setMargins(int_margin_left, int_margin_top, 0, 0); 
      view_tag.setLayoutParams(lp); 

      view_tag.setBackgroundResource(R.drawable.tag_light); 
      ll_main_image.addView(view_tag); 

     } 

Answer 1

您正在使用LinearLayout.LayoutParams，其中佈局爲RelativeLayout。改爲RelativeLayout.LayoutParams，它應該可以工作。