Android 如何动态更改动作栏sherlock Spinner下拉列表的背景色？

我正在为我的应用程序使用

sherlock activity

bar spinner下拉列表，我想更改背景颜色，因为现在我得到的颜色与默认值相同。 我正在使用

 ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(),R.layout.sherlock_spinner_item, actions);             getSupportActionBar().setNavigationMode(com.actionbarsherlock.app.ActionBar.NAVIGATION_MODE_LIST);

ActionBar.OnNavigationListener navigationListener = new OnNavigationListener() {
    @Override
    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
    Toast.makeText(getBaseContext(), "Current Action : "actions[itemPosition],Toast.LENGTH_SHORT).show();
    return false;
                } };
 getSupportActionBar().setListNavigationCallbacks(adapter, navigationListener);
 adapter.setDropDownViewResource(R.layout.sherlock_spinner_dropdown_item);

final String[]actions=新字符串[]{“工作区”、“项目1”、“项目2”、“项目3”}

 ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(),R.layout.sherlock_spinner_item, actions);             getSupportActionBar().setNavigationMode(com.actionbarsherlock.app.ActionBar.NAVIGATION_MODE_LIST);

ActionBar.OnNavigationListener navigationListener = new OnNavigationListener() {
    @Override
    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
    Toast.makeText(getBaseContext(), "Current Action : "actions[itemPosition],Toast.LENGTH_SHORT).show();
    return false;
                } };
 getSupportActionBar().setListNavigationCallbacks(adapter, navigationListener);
 adapter.setDropDownViewResource(R.layout.sherlock_spinner_dropdown_item);

及

 ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(),R.layout.sherlock_spinner_item, actions);             getSupportActionBar().setNavigationMode(com.actionbarsherlock.app.ActionBar.NAVIGATION_MODE_LIST);

ActionBar.OnNavigationListener navigationListener = new OnNavigationListener() {
    @Override
    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
    Toast.makeText(getBaseContext(), "Current Action : "actions[itemPosition],Toast.LENGTH_SHORT).show();
    return false;
                } };
 getSupportActionBar().setListNavigationCallbacks(adapter, navigationListener);
 adapter.setDropDownViewResource(R.layout.sherlock_spinner_dropdown_item);

ArrayAdapter adapter=new ArrayAdapter（getBaseContext（），R.layout.sherlock\u spinner\u项目，操作）；getSupportActionBar（）.setNavigationMode（com.actionbarsherlock.app.ActionBar.NAVIGATION\u MODE\u列表）；
ActionBar.OnNavigationListener navigationListener=新建OnNavigationListener（）{
@凌驾
公共布尔值onNavigationItemSelected（int-itemPosition，long-itemId）{
Toast.makeText（getBaseContext（），“当前操作：”操作[itemPosition]，Toast.LENGTH_SHORT）.show（）；
返回false；
} };
getSupportActionBar（）.setListNavigationCallbacks（适配器、navigationListener）；
adapter.setDropDownViewResource（R.layout.sherlock\u微调器\u下拉菜单\u项）；

我越来越像我想要的

 ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(),R.layout.sherlock_spinner_item, actions);             getSupportActionBar().setNavigationMode(com.actionbarsherlock.app.ActionBar.NAVIGATION_MODE_LIST);

ActionBar.OnNavigationListener navigationListener = new OnNavigationListener() {
    @Override
    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
    Toast.makeText(getBaseContext(), "Current Action : "actions[itemPosition],Toast.LENGTH_SHORT).show();
    return false;
                } };
 getSupportActionBar().setListNavigationCallbacks(adapter, navigationListener);
 adapter.setDropDownViewResource(R.layout.sherlock_spinner_dropdown_item);

我可以在这里更改背景色吗？？如果是，请提供任何建议。谢谢
您是否尝试更改主题

 ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(),R.layout.sherlock_spinner_item, actions);             getSupportActionBar().setNavigationMode(com.actionbarsherlock.app.ActionBar.NAVIGATION_MODE_LIST);

ActionBar.OnNavigationListener navigationListener = new OnNavigationListener() {
    @Override
    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
    Toast.makeText(getBaseContext(), "Current Action : "actions[itemPosition],Toast.LENGTH_SHORT).show();
    return false;
                } };
 getSupportActionBar().setListNavigationCallbacks(adapter, navigationListener);
 adapter.setDropDownViewResource(R.layout.sherlock_spinner_dropdown_item);

在清单文件中，使用以下内容设置主题：

 ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(),R.layout.sherlock_spinner_item, actions);             getSupportActionBar().setNavigationMode(com.actionbarsherlock.app.ActionBar.NAVIGATION_MODE_LIST);

ActionBar.OnNavigationListener navigationListener = new OnNavigationListener() {
    @Override
    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
    Toast.makeText(getBaseContext(), "Current Action : "actions[itemPosition],Toast.LENGTH_SHORT).show();
    return false;
                } };
 getSupportActionBar().setListNavigationCallbacks(adapter, navigationListener);
 adapter.setDropDownViewResource(R.layout.sherlock_spinner_dropdown_item);


 ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(),R.layout.sherlock_spinner_item, actions);             getSupportActionBar().setNavigationMode(com.actionbarsherlock.app.ActionBar.NAVIGATION_MODE_LIST);

ActionBar.OnNavigationListener navigationListener = new OnNavigationListener() {
    @Override
    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
    Toast.makeText(getBaseContext(), "Current Action : "actions[itemPosition],Toast.LENGTH_SHORT).show();
    return false;
                } };
 getSupportActionBar().setListNavigationCallbacks(adapter, navigationListener);
 adapter.setDropDownViewResource(R.layout.sherlock_spinner_dropdown_item);