动态改变titleBar标题颜色

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    final boolean customTitleSupported = requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);

    setContentView(R.layout.main);

    if ( customTitleSupported ) {
        getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.mytitle);
    }

    final TextView myTitleText = (TextView) findViewById(R.id.myTitle);
    if ( myTitleText != null ) {
        myTitleText.setText("========= NEW TITLE ==========");
        myTitleText.setBackgroundColor(Color.GREEN);
    }


}