在IOS10 Widget中以编程方式更改NCWidgetDisplayMode

Question

我期待以编程方式更改今天扩展的高度.正如iOS10 SDSK介绍的那样,NCWidgetDisplayMode我试图用它来以编程方式改变我的身高preferredContentSize.

我已实施widgetActiveDisplayModeDidChange:

@available(iOSApplicationExtension 10.0, *)
func widgetActiveDisplayModeDidChange(activeDisplayMode: NCWidgetDisplayMode, withMaximumSize maxSize: CGSize) {
    if (activeDisplayMode == NCWidgetDisplayMode.Compact) {
        self.preferredContentSize = maxSize
    }
    else {
        self.preferredContentSize = CGSize(width: maxSize.width, height: 280)
    }
}

我希望在UIButton按下时窗口小部件高度扩展:

@IBAction func multiplybyonethousand (sender: AnyObject) {

    if self.extensionContext?.widgetActiveDisplayMode == NCWidgetDisplayMode.Compact {

        self.widgetActiveDisplayModeDidChange(.Expanded, withMaximumSize: CGSizeMake(0, 300))
    }
}

但是,当我运行我的代码时,今天扩展的高度不会改变,控制台给我以下错误:

2016-11-05 14:24:29.425697 todayextension[28590:7222420] No active animation block!

我试图widgetActiveDisplayModeDidChange在动画块内部调用:

@IBAction func multiplybyonethousand (sender: AnyObject) {
        if self.extensionContext?.widgetActiveDisplayMode == NCWidgetDisplayMode.Compact {
            UIView.animateWithDuration(0.2, delay: 0, options: .CurveLinear, animations: { () -> Void in
                self.widgetActiveDisplayModeDidChange(.Expanded, withMaximumSize: CGSizeMake(0, 300))

            }) { (completed) -> Void in
             //Do Stuff
            }
        }
}

但我仍然收到No active animation block!错误消息.有没有办法以编程方式扩展iOS10中的今天扩展视图？

Answer 1

在iOS 10,Show More/Show Less自动提供按钮Today's Extension.因此,widget自动处理的高度NCWidgetDisplayMode.您无需提供任何显式按钮来处理窗口小部件的高度.

override func viewDidLoad() {
    super.viewDidLoad()

    if #available(iOSApplicationExtension 10.0, *) {
        self.extensionContext?.widgetLargestAvailableDisplayMode = .expanded
    }
}

实现NCWidgetProviding协议的方法:

@available(iOSApplicationExtension 10.0, *)
func widgetActiveDisplayModeDidChange(_ activeDisplayMode: NCWidgetDisplayMode, withMaximumSize maxSize: CGSize) {
    if activeDisplayMode == .expanded {
            preferredContentSize = CGSize(width: maxSize.width, height: 300)
    } else {
        preferredContentSize = maxSize
    }
}

在,iOS 8和iOS 9,你需要显式处理小部件的高度.在iOS 10,它不是必需的.

你可以参考https://github.com/pgpt10/Today-Widget来Today's Widget实现iOS 8,iOS 9和iOS 10.