How to change color and font on ListView

Question

I am trying to change my font(color and size) and the back ground on my ListView. I want to change it with code lines not on xml. my list view looks like: the xml:

 <?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="10dp" android:textSize="18sp" android:text="@string/hello"> </TextView> 

and my code is

public class NewsActivity  extends ListActivity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);   // ArrayAdapter listItemAdapter = new ArrayAdapter( this,android.R.layout.simple_list_item_1, v_itemList );        setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item,ynetList));        View v=getListView() ;        ListView lv = getListView(); 

what next? please give me an example base on my code

Answer 1

You need to create a CustomListAdapter.

public class CustomListAdapter extends ArrayAdapter <String> {      private Context mContext;     private int id;     private List <String>items ;      public CustomListAdapter(Context context, int textViewResourceId , List<String> list )      {         super(context, textViewResourceId, list);                    mContext = context;         id = textViewResourceId;         items = list ;     }      @Override     public View getView(int position, View v, ViewGroup parent)     {         View mView = v ;         if(mView == null){             LayoutInflater vi = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);             mView = vi.inflate(id, null);         }          TextView text = (TextView) mView.findViewById(R.id.textView);          if(items.get(position) != null )         {             text.setTextColor(Color.WHITE);             text.setText(items.get(position));             text.setBackgroundColor(Color.RED);              int color = Color.argb( 200, 255, 64, 64 );                 text.setBackgroundColor( color );          }          return mView;     }  } 

The list item looks like this (custom_list.xml):

<?xml version="1.0" encoding="utf-8"?> <LinearLayout   xmlns:android="http://schemas.android.com/apk/res/android"   android:layout_width="wrap_content"   android:layout_height="wrap_content"> <TextView       android:layout_width="fill_parent"      android:layout_height="wrap_content"      android:id="@+id/textView"     android:textSize="20px" android:paddingTop="10dip" android:paddingBottom="10dip"/> </LinearLayout> 

Use the TextView api's to decorate your text to your liking

and you will be using it like this

listAdapter = new CustomListAdapter(YourActivity.this , R.layout.custom_list , mList); mListView.setAdapter(listAdapter); 

Answer 2

Create a CustomAdapter and in that you have the getView() so there if you want to change the listview background color use this :

v.setBackgroundColor(Color.CYAN); 

If you want to change the textColor then do this :

tv.setTextColor(Color.RED); 

and for the textSize :

tv.setTextSize(20); 

where 'v' is the listview and 'tv' is the textview