Android programmatically sets the listview background with transparency issues

My first question is, how to set the color of the listview background to white?

I tried list. Setbackgroundcolor (0xFFFFFF); But of course it doesn't work

Another problem I encounter in other list views (I can easily change BG in XML, but I don't know how to use it in Java) is that the line turns black when you click and scroll

I think this is the problem: Android listview background not painted

Again, I don't know how to implement it in my code

resolvent:

You can set the background color of listview as follows,

  ListView listview=new ListView(this);
  listview.setBackgroundColor(Color.WHITE);

If the list view displays black when you scroll through it, add some code to the XML

 android:cacheColorHint="#00000000"
 android:scrollbarFadeDuration="0"

I think it may help you

Edit:

 <RelativeLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:background="@drawable/plainbg">


 <ListView 
 android:id="@+id/foodlistview"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:cacheColorHint="#00000000"
 android:scrollbarFadeDuration="0"
 android:divider="@android:color/white"
 android:dividerHeight="2px"
 ></ListView>

The XML layout here contains listview. XML