如何按位置设置列表视图中特定项目的背景颜色？

Question

I want to set the background color of a specific item in the listview.

My listview is generated by ArrayAdapter using a ArrayList.

I have a specific item in the listview that I plan to change the background color.

I know the item's position in the list.

This is my code for generating the listview.

respondMessageListView = (ListView) findViewById(R.id.respondMessageListView);
respondMessageListView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, autoRespondMessages.getMessages()));

Thank you!

[edit]

According to this post , using setSelection makes no effect if is used in onCreate(), the work around is "remove the method onAttachedToWindow in PullToRefreshListView ". I am not quite understanding the solution. May I ask how should I accomplish this? I am a subclass of Activity , so I cannot subclass any other class anymore.

Answer 1

You will have to subclass ArrayAdapter and override the getView(...) method. For simplicity's sake you could just call through to the base class implementation and set the background color for the returned View .

Edit: The following example colors the items' backgrounds alternating black and white.

private class MyAdapter extends ArrayAdapter {

    ...

    public View getView(int position, View convertView, ViewGroup parent) {
        View v = super.getView(position, convertView, parent);
        v.setBackgroundColor(position % 2 == 0 : 0xff000000, 0xffffffff);
    }
}

Answer 2

This code is for the when you select the listitem.

Try this code...

listview.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> myAdapter, View myView, int pos, long mylng) {

             if( pos == 1) {
                   // to change the listview background
                   listview.setBackgroundColor(getResources().getColor(R.color.your_color_id));

                   // to change the selected item background color
                   myView.setBackgroundColor(getResources().getColor(R.color.your_color_id));
             }
            }
          });

Good luck.