iOS10高度中的Today小部件迅速

1）在viewDidLoad中将显示模式设置为NCWidgetDisplayModeExpanded

override func viewDidLoad() {
    super.viewDidLoad()
    self.extensionContext?.widgetLargestAvailableDisplayMode = NCWidgetDisplayMode.expanded
}

2）实现给定的protocal方法

[![func widgetActiveDisplayModeDidChange(_ activeDisplayMode: NCWidgetDisplayMode, withMaximumSize maxSize: CGSize){
    if (activeDisplayMode == NCWidgetDisplayMode.compact) {
        self.preferredContentSize = maxSize;
    }
    else {
        self.preferredContentSize = CGSize(width: 0, height: 200);
    }
}