Changing a divider with setDivider in a ListActivity without a custom ListView?
I can't seem to get a customized divider, using a Drawable I've defined, to work when using a ListActivity
and not creating a custom ListView
. It almost seems like when the VM creates its own ListView
for me, with the ListActivity
, it uses a theme with the default divider provided; and if I try to provide one, no dividers appear in the ListView
at all.
I know that I can create a custom ListView
using XML and define android:divider on that ListView
, and this does recognize my custom divider Drawable. But I would prefer to just let the ListActivity
create its own ListView
, if I can figure out how to get my own divider working on it.
Here's the code I'm using now:
public class Categories extends ListActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final String[] OPTIONS = {
"Hello",
"Goodbye",
"Good Morning",
"Greetings",
"Toodaloo"
};
ArrayAdapter<String&g开发者_JS百科t; adapter = new ArrayAdapter<String>(
this, android.R.layout.simple_list_item_1, OPTIONS);
setListAdapter(adapter);
ListView lv = getListView();
PaintDrawable sage = new PaintDrawable(R.drawable.sage);
lv.setDivider(sage);
lv.setDividerHeight(1);
}
}
I figured it out. The issue had nothing to do with the ListActivity generating a ListView for me. It was in how I was defining the divider in Java code.
There are two ways that I see to define the divider (border between ListView rows) on a ListView that is automatically inflated from a ListActivity, if you want to define the color in XML:
Method 1:
In res/values/colors.xml, put the following:
<resources>
<color name="sage">#cceebb</color>
</resources>
In your ListActivity-extending class, do this:
ListView lv = getListView();
ColorDrawable sage = new ColorDrawable(this.getResources().getColor(R.color.sage));
lv.setDivider(sage);
lv.setDividerHeight(1);
Method 2:
In res/values/colors.xml:
<resources>
<drawable name="sage">#cceebb</drawable>
</resources>
And in your class that extends ListActivity:
ListView lv = getListView();
ColorDrawable sage = new ColorDrawable(this.getResources().getColor(R.drawable.sage));
lv.setDivider(sage);
lv.setDividerHeight(1);
To set divider in listview programatically:
These code put inside in your .java Class
ListView lv = (ListView) findViewById(R.id.lv);
lv.setDivider(getResources().getDrawable(R.drawable.drawable_divider));
lv.setDividerHeight(1);
Creating Drawable: {res > drawable > drawable_divider.xml}
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#ececec"></solid>
</shape>
Try this code:
searchText.setBackgroundColor(getResources().getColor(R.color.wordColorBlack));
ListView lv = getListView();
lv.setDivider(getResources().getDrawable(R.drawable.divider2));
lv.setDividerHeight(2);
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