xcode 今日扩展：如何使用显示模式？
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Today Extension: How to work with display mode?
提问by Vladius001
Widgets now include the concept of display mode (represented by NCWidgetDisplayMode), which lets you describe how much content is available and allows users to choose a compact or expanded view.
小部件现在包括显示模式的概念（由NCWidgetDisplayMode表示），它可以让您描述有多少可用的内容，并允许用户选择紧凑或扩展的视图。
How to expand widget in ios 10.0? It doesn't work as in ios 9.
如何在 ios 10.0 中扩展小部件？它不像在 ios 9 中那样工作。
回答by Vladius001
Ok, i found right solution here.
好的，我在这里找到了正确的解决方案。
1) Set the display mode to NCWidgetDisplayMode.expandedfirst in viewDidLoad:
1) 将显示模式设置为NCWidgetDisplayMode.expandedfirst in viewDidLoad：
override func viewDidLoad() {
super.viewDidLoad()
self.extensionContext?.widgetLargestAvailableDisplayMode = NCWidgetDisplayMode.expanded
}
2) Implement new protocol method:
2) 实现新的协议方法：
func widgetActiveDisplayModeDidChange(_ activeDisplayMode: NCWidgetDisplayMode, withMaximumSize maxSize: CGSize) {
if (activeDisplayMode == NCWidgetDisplayMode.compact) {
self.preferredContentSize = maxSize
}
else {
//expanded
self.preferredContentSize = CGSize(width: maxSize.width, height: 200)
}
}
And it will work as official apps.
它将作为官方应用程序运行。
回答by user6716827
Here is a Objective-C one.
这是一个Objective-C。
- (void)widgetActiveDisplayModeDidChange:(NCWidgetDisplayMode)activeDisplayMode
withMaximumSize:(CGSize)maxSize
{
if (activeDisplayMode == NCWidgetDisplayModeCompact) {
self.preferredContentSize = maxSize;
}
else {
self.preferredContentSize = CGSizeMake(0, 200);
}
}
