Today Widget扩展的问题

Question

I have a Today Widget for my app, however I have been told about an issue with it.

Basically, what seems to be happening (I can't test this for myself) is that the widget will sometimes just display 'unable to load' and other times it will just display with a height of 0.

I can't really see why this is happening. I've tested it out on my device and the simulator for weeks now and have never ran into this issue.

I was wondering if it could possibly be down to the refresh code:

    func widgetPerformUpdateWithCompletionHandler(completionHandler: ((NCUpdateResult) -> Void)!) {
    // Perform any setup necessary in order to update the view.

    var defaults = NSUserDefaults(suiteName: "group.AffordIt")
    var newCheck = defaults.boolForKey("new")

    if newCheck == true {
        completionHandler(NCUpdateResult.NewData)
    } else {
        completionHandler(NCUpdateResult.NoData)
    }
}

'newCheck' is true whenever something changes within my app that needs to be displayed in the widget.

Does anyone know what the possible causes of these issues are?

Answer 1

"unable to load" message appears if your extension crashes often. You can try to re-enable it by removing and adding the extension again.

Answer 2

Are you using your own view controller and xib instead of using storyboard? If yes, it is probably that you didn't set the preferredContentSize in your view controller.

try to put the following code in the init function of ur view controller:

    self.preferredContentSize = CGSizeMake(320, 100);

I have just began the extension programming today so I am not sure is it really helpful for u or not. Here is the result in my own widget:

Answer 3

1. Press Edit button in today extensions
2. Remove your extension
3. Add your extension again.