نحوه ایجاد لیست ویوو کاستوم باآیتم هایی به رنگ مختلف پس زمینه ؟

یه نمونه کد که خودم تو پروژم نوشتم تقدیم به دوستان خوبم: 

 String[] colors = new String[] { "#e9a92f", "#00a3e7", "#fc7931",
				"#771f99", "#2439ff", "#ff28a1", "#31ea18", "#01aef0",
				"#79af03", "#3bb057", "#4d660e", "#f0b500", "#f09000",
				"#a5bd41", "#dd310b", "#dd310b", "#9f0303", "#771f99",
				"#005826", "#789111", "#594F4F", "#556270", "#C44D58",
				"#CC2A41", "#424254", "#5E412F", "#601848", "#480048",
				"#5C323E", "#A82743", "#6B0103", "#4B000F", "#432330",
				"#410936", "#66245B" };
		int pos = (int) (Math.random() * colors.length);
container_feed.setBackground(new ColorDrawable(Color
				.parseColor(colors[pos])));

 public class CustomList extends ArrayAdapter<String> {

    private final Activity  context;

    private final String[]  Str;

    private final Integer[] imgurl;


    public CustomList(Activity context, String[] web, Integer[] imageId) {
        super(context, R.layout.custom_listview, web);
        this.context = context;
        this.Str = web;
        this.imgurl = imageId;

    }


    @Override
    public View getView(int position, View view, ViewGroup parent) {
        LayoutInflater inflater = context.getLayoutInflater();
        View rowView = inflater.inflate(R.layout.custom_listview, null, true);
        TextView txtTitle = (TextView) rowView.findViewById(R.id.txt1);
        ImageView imageView = (ImageView) rowView.findViewById(R.id.img1);
        txtTitle.setText(Str[position]);
        imageView.setImageResource(imgurl[position]);
        return rowView;
    }

}

در کل میخام بدونم که اگه یه طرح لیست ویوومون مطابق شکل باشه اون linear layout که با آی دی backgr مشخص کردیم میشه رنگاشو متناوب عوض کرد البته با توجه به کلاس کاستوم لیستی که در بالا قرار دادم

باید در تابع getView  (بالا) که از کدهای خودتون گرفتم بنویسید . در لایه ای که درست کردید باید به backgr وصل بشید با دستور findViewById و کدی که برای شما در پاسخ قبلی گذاشتم رو در ادامش بنویسی دوست خوبم. یعنی این شکلی:

@Override

public View getView(int position,View view,ViewGroup parent){

LayoutInflater inflater = context.getLayoutInflater();
View rowView = inflater.inflate(R.layout.custom_listview,null,true);
TextView txtTitle =(TextView) rowView.findViewById(R.id.txt1);
ImageView imageView =(ImageView) rowView.findViewById(R.id.img1);

  LinearLayout backgr =(LinearLayout) rowView.findViewById(R.id.backgr);

   String[] colors =newString[]{"#e9a92f","#00a3e7","#fc7931",

   "#771f99","#2439ff","#ff28a1","#31ea18","#01aef0","#79af03","#3bb057","#4d660e","#f0b500",
   "#f09000","#a5bd41","#dd310b","#dd310b","#9f0303","#771f99","#005826","#789111","#594F4F",
   "#556270","#C44D58","#CC2A41","#424254","#5E412F","#601848","#480048","#5C323E","#A82743",
   "#6B0103","#4B000F","#432330","#410936","#66245B"};
   int pos =(int)(Math.random()* colors.length);
   backgr.setBackground(newColorDrawable(Color
         .parseColor(colors[pos])));

txtTitle.setText(Str[position]); 
imageView.setImageResource(imgurl[position]);
return rowView;
}