state-restoration

问题 When implementing state restoration in Android, how can I save and restore a lambda? I tried saving it as Serializable and Parcelable, but it throws a compile error. Is there any way to save and restore them, or should I seek other approaches? 回答1: Kotlin lambdas implement Serializable , so they can't be saved like: override fun onSaveInstanceState(outState: Bundle) { outState.putSerializable("YOUR_TAG", myLambda as Serializable) super.onSaveInstanceState(outState) } Similarly, to restore

问题 I just wanted to implement the iOS State-Restoration APIs in one of my Apps. After finally getting it to work, I discovered that a ViewController that I present modally gets restored using an animation, which is not what I want. I would expect my app to just be in the state I left it, but not having the user to see hot he got there. So I went ahead and downloaded Apple Sample Code on that: https://developer.apple.com/library/ios/samplecode/StateRestore/Introduction/Intro.html and wanted to

问题 I've been toying around with state restoration. In the code below, the scroll position of the UITableViewController gets restored, however, if I were to tap through into the detail view (pushing an instance of MyViewController onto the navigation stack), when the app restarts, it always returns to the first view controller in the navigation stack (i.e. MyTableViewController). Would somebody be able to help me restore to the correct view controller (i.e. MyOtherViewController)? AppDelegate.m -

问题 I have an app that runs a timer, and the timer should keep running even if the app quits or the phone is turned off. So I'm trying to do that using shouldSaveApplicationState and shouldRestoreApplicationState . I added both methods and willFinishLaunchingWithOptions to my appDelegate and I set up restoration IDs for every view controller, navigation controller and tab bar controller involved. Then on the view controller I want to restore I did this: override func

问题 My app has a simple organization, which I've configured in an Interface Builder storyboard (not in code). There is a Navigation View Controller, which has its Root View Controller set to my Main View Controller. My Main View contains a table, where cells segue to a Detail View Controller. When I suspend the application while looking at the Detail View and then resume it, I'm returned to the Main View, rather than the Detail view. Why might this be? Details: I have set Restoration IDs in

问题 According the docs: In iOS 6 and later, if you assign a value to this view’s restorationIdentifier property, it attempts to preserve its URL history, the scaling and scrolling positions for each page, and information about which page is currently being viewed. During restoration, the view restores these values so that the web content appears just as it did before. I'm doing all that, but nothing is happening. And even if I manually save and restore the URL the user was looking at previously,

问题 I'm trying to make core bluetooth wake up the app even when it's not running. As Apple stated, "Because state preservation and restoration is built in to Core Bluetooth, your app can opt in to this feature to ask the system to preserve the state of your app’s central and peripheral managers and to continue performing certain Bluetooth-related tasks on their behalf, even when your app is no longer running. When one of these tasks completes, the system relaunches your app into the background

问题 I have added state restoration to my app, and it seems to work fine, however I'm not happy with the way that it functions. Basically, the app is a Disney wait time tracker, so it has a selection of the four parks when you first open the app. Tapping on one of these parks segues (with the slide up animation) to the main section of the app. The problem is - When the app is reopened and the view restores after a few seconds, the slide up segue is performed (which is quite distracting). Anyone

问题 I get this warning in my iOS project: (iOS7, XCode 5 GM) Warning: Unable to create restoration in progress marker file I am working on a viewcontroller that turns all black when I get this warning on startup. Deleting the app and restarting XCode sometimes seems to help. I am returning NO on both -(BOOL)application:(UIApplication *)application shouldRestoreApplicationState: -(BOOL)application:(UIApplication *)application shouldSaveApplicationState: Update1: I tested on iPhone4s. Same result.

问题 i'm unable to restore the pended project for deletion on google cloud. this projects was shared with me before to manage it from my other account which i forgot the owner id i was use for this project. i have received the message today from google as per below : Your Google Cloud Platform project whm-server-195505 was shut down on 2018-09-03T22:21:03+00:00. If you take no action, after 2018-10-03T22:21:03+00:00, you will be unable to recover this project. If this was unintentional, visit this