I am using a ListView in an Activity class. I'm not using any XML code for the ListView. Now I am unable to change the color of the Text item in the listView.
I changed the background color of the ListView but am unable to change the color of the list items. I got some links from the internet but am not able to figure it out. Can anyone help me to do that with some code?
My Activity class looks like this:
ListView listView;
// Create an array of Strings, that will be put to our ListActivity
String[] names = new String[] { "India", "Malaysia" };
TextView tv = new TextView(getApplicationContext());
tv.setText("Select Country");
tv.setTextColor(012);
listView = getListView();
listView.addHeaderView(tv);
listView.setCacheColorHint(Color.rgb(36, 33, 32));
li开发者_JAVA技巧stView.setBackgroundColor(Color.rgb(225, 243, 253));
this.setListAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1,names));
}
Above, tv.setTextColor
is set for the heading of the list items. And it is not working as it is asking me to pass an integer value. What integer value can I pass for the Color?
Can any one suggest some code for changing the color of the list items?
For having colored listitem,you need to custom it.For that,prepare an xml file:
custom_listitem.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent"
android:orientation="vertical">
<TextView android:layout_width="fill_parent" android:layout_height="wrap_content"
android:textColor="#FFFFFF"
android:id="@+id/list_item"
android:background="#FF0000" <!-- for red color -->
/>
</LinearLayout>
Now you have to use this in your adapter like-
listView.setListAdapter(new ArrayAdapter<String>(this,R.layout.custom_item,R.id.list_item,names));
And yes,you can use Color.RED
,Color.YELLOW
etc.for the default colors,our you can use "#3C3C3C"
(while using in xml) or Color.parseColor("3C3C3C")
(while using programatically) for any colors other than default colors.
You need to create a CustomListAdapter.
private class CustomListAdapter extends ArrayAdapter {
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);
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