قرار دادن SetBackGround به صورت Dynamic

کد:

 
	private static class ViewHolder{
		private RelativeLayout rl_image;
		 private ImageView imgPrd;
		 //private Bitmap bitmap;
		private TextView tv_name;
		 public ViewHolder(View view){
			 rl_image = (RelativeLayout) view.findViewById(R.id.rl_image);
			 imgPrd = (ImageView) view.findViewById(R.id.img_prd);
			 tv_name = (TextView) view.findViewById(R.id.tv_name);
			 
		 }
		 
		 @SuppressLint("NewApi")
		public void fill(ArrayAdapter<StructItem> adapter,StructItem item, int position ){
			 int imgH = (int) (UIHelper.width * 1.5);
			 rl_image.setLayoutParams(new LinearLayout.LayoutParams(UIHelper.width,imgH));
			 //imgPrd.setBackgroundResource((Integer)item.imageid);
			 //imgPrd.setImageDrawable(item.res);
			 //imgPrd.setImageBitmap(BitmapFactory.decodeResource(G.appConfigs.context.getResources(),item.imageid));
			 tv_name.setText(item.name.trim().toString());
			 
			 switch (item.catid) {
			case 0:
				Log.i("index", "Index: " + 0 + " item.catid: " + item.catid);
				imgPrd.setBackgroundResource(R.drawable.lv_3);
				break;
			case 1:
				Log.i("index", "Index: " + 1 + " item.catid: " + item.catid);
				imgPrd.setBackgroundResource(R.drawable.lv_1);
				break;
			case 2:
				Log.i("index", "Index: " + 2 + " item.catid: " + item.catid);
				imgPrd.setBackgroundResource(R.drawable.lv_2);
				break;
			case 3:
				Log.i("index", "Index: " + 3 + " item.catid: " + item.catid);
				imgPrd.setBackgroundResource(R.drawable.lv_3);
				break;
			case 4:
				Log.i("index", "Index: " + 4 + " item.catid: " + item.catid);
				imgPrd.setBackgroundResource(R.drawable.lv_1);
				break;
			default:
				Log.i("index", "Index: Default & item.catid: " + item.catid);
				break;
			}
			 
			}
	}

و:

                for(int i=0;i<=3;i++){
			
			item = new StructItem();
			item.id = i;
			item.catid = i;
			item.name = "تصویر شماره " + i;

			items.add(item);
		}
		
		adapter.notifyDataSetChanged();

خلاصه کدت میشه این :

 private static class ViewHolder{
	private ImageView imgPrd;
	private TextView tv_name;
	public ViewHolder(View view){
		imgPrd = (ImageView) view.findViewById(R.id.img_prd);
		tv_name = (TextView) view.findViewById(R.id.tv_name);
	}
	
	public void fill(ArrayAdapter<StructItem> adapter,StructItem item, int position ){
		 
		tv_name.setText(item.name.trim().toString());
		 
		switch (item.catid) {
			case 0:
				Log.i("index", "Index: " + 0 + " item.catid: " + item.catid);
				imgPrd.setBackgroundResource(R.drawable.lv_3);
				break;
			case 1:
				Log.i("index", "Index: " + 1 + " item.catid: " + item.catid);
				imgPrd.setBackgroundResource(R.drawable.lv_1);
				break;
			case 2:
				Log.i("index", "Index: " + 2 + " item.catid: " + item.catid);
				imgPrd.setBackgroundResource(R.drawable.lv_2);
				break;
			default:
				Log.i("index", "Index: Default & item.catid: " + item.catid);
				break;
			}
		 
		}
}

تنظیمات RelativeLayout رو هم به xml  واگذار کن

Log ها توی خروجی میاد؟

وقتی به صورت تئوری نگاهش می کنی باید اجرا بشه

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