Android设置个性化Dialog小图标的方法

@Override  protected void onCreate(Bundle savedInstanceState) {    // Be sure to call the super class.    super.onCreate(savedInstanceState);    requestWindowFeature(Window.FEATURE_LEFT_ICON);    // See assets/res/any/layout/dialog_activity.xml for this    // view layout definition, which is being set here as    // the content of our screen.    setContentView(R.layout.dialog_activity);    getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,        android.R.drawable.ic_dialog_alert);  }

requestWindowFeature(Window.FEATURE_LEFT_ICON);

getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,        android.R.drawable.ic_dialog_alert);