Android -无法更改动作栏文本颜色

<style name="AppTheme.ActionBar" parent="Theme.AppCompat.Light.DarkActionBar">
    <item name="android:textColorPrimary">@color/action_bar_text_color</item>
    <item name="textColorPrimary">@color/action_bar_text_color</item>
</style>

<application
    android:theme="@style/AppTheme.ActionBar">
    <!-- 其他配置 -->
</application>

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    ActionBar actionBar = getSupportActionBar();
    if (actionBar != null) {
        Spannable text = new SpannableString(actionBar.getTitle());
        text.setSpan(new ForegroundColorSpan(Color.parseColor("#FF0000")), 0, text.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
        actionBar.setTitle(text);
    }
}