I am trying to play a local movie in my app, but when I call my method to start playing the movie, the player appears but is always black and I have a loading message. Can someone help me understand this?
func startPlayingVideo() {
let fileURL = NSBundle.mainBundle().URLForResource("Sample", withExtension: "m4v")
moviePlayer = MPMoviePlayerController(contentURL: fileURL)
moviePlayer.prepareToPlay()
/* Scale the movie player to fit the aspect ratio */
moviePlayer.scalingMode = .AspectFit
view.addSubview(moviePlayer.view)
moviePlayer.setFullscreen(true, animated: false)
/* Let's start playing the video in full screen mode */
moviePlayer.play()
}
#IBAction func playVideo(sender: AnyObject) {
//play movie
startPlayingVideo()
}
I'm not as experienced with coding with videos. Thanks in advance to the community.
May be your fileURL become nil at runtime so try this following
In the Project Navigator select your project root > your Target > Build Phases > Copy Bundle Resources. If your video is not listed in this list you should add it using the plus button
may be this will work.
Related
Mac apps that have a sidebar (Mail, Finder, etc) allow you to resize its width, and that width is preserved across app launches. You enable this behavior in an AppKit app by assigning autosaveName on your NSSplitView. How do you do this in a Mac Catalyst app using UISplitViewController?
By default, my Catalyst app's sidebar is pretty wide, so every time the user opens it they have to resize it.
I reached out to a friend who was able to achieve this in their app. They said you can manually save the current width to UserDefaults and upon creating the split view controller set its preferredPrimaryColumnWidth to the last saved width. Nice!
In my UISplitViewController subclass I added:
init() {
let lastWidth = UserDefaults.standard.integer(forKey: "SidebarWidth")
let initialWidth = lastWidth > 0 ? CGFloat(lastWidth) : 220
preferredPrimaryColumnWidth = initialWidth
//...
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
UserDefaults.standard.setValue(Int(primaryColumnWidth), forKey: "SidebarWidth")
}
Since the last release of iOS11 (GM version), the activity view is displayed scrolled to the top, with a spring resistance preventing the user to 'unscroll' it.
Previous version of iOS 11 (beta version) never suffered from this, nor iOS 10.
Also, one can see a blank margin at the bottom plus the fact that the preview image is not fetched/displayed right in the Website preview.
Here is the code. Any idea?
let textToShare = "\(message) (\(share))"
let objectsToShare : [Any] = [textToShare, url]
let activityViewController = UIActivityViewController(activityItems: objectsToShare as [AnyObject], applicationActivities: nil)
// New Excluded Activities Code
activityViewController.excludedActivityTypes = [.airDrop, .addToReadingList]
activityViewController.completionWithItemsHandler = {
(activityType: UIActivityType?, completed: Bool, returnedItems: [Any]?, error: Error? ) -> Void in
_completed(completed)
}
Ok. It’s only Twitter app itself that had to be updated for iOS11 (as in iOS11, there is no longer centralized system, sharing is handled by apps such as Facebook or Twitter themselves).
I've been working on this Xamarin Forms mobile application and I've been loving it but it's a media player application and the native embedding for the platform specific video player doesn't work. After much debugging I was able to get the audio playing but no video would show up. I think this has to do with the views just not being swapped out appropriately. Unfortunately there isn't much material on how to effectively switch from a Xamarin Forms view to a native view (to see the video) through Xamarin Forms. Any help is appreciated thank you !
I was able to get iOS videos working by using the Xamarin Forms messaging service to Appdelegate class and built the AVPlayer class there. Works great.
playVideo.Clicked += (sender, e) =>
MessagingCenter.Send(this, "ShowVideoPlayer", new
ShowVideoPlayerArguments(videoUrl));
Appdelegate.cs
MessagingCenter.Subscribe<VideoDetailPage,
ShowVideoPlayerArguments>(this, "ShowVideoPlayer",
HandleShowVideoPlayerMessage);
//messaging center class
private void HandleShowVideoPlayerMessage(Page page,
ShowVideoPlayerArguments arguments)
{
var presentingViewController = GetMostPresentedViewController();
var url = NSUrl.FromString(arguments.Url);
var avp = new AVPlayer(url);
var avpvc = new AVPlayerViewController();
avpvc.Player = avp;
avp.Play();
presentingViewController.PresentViewController(avpvc, animated: true,
completionHandler: null);
}
private UIViewController GetMostPresentedViewController()
{
var viewController =
UIApplication.SharedApplication.KeyWindow.RootViewController;
while (viewController.PresentedViewController != null){
viewController = viewController.PresentedViewController;
}
return viewController;
}
However.. Getting this to work with Android is a whole different animal since I have to have deal with .axml layouts I believe.. Any help with this would be greatly appreciate.. Thanks so much guys.
So I figured out an implementation using Native Views, an alternative to Custom Renderers. Such a more stream lined process.
Description/ What I've tried
I imported a library that lets me beautifully load images asynchronously into my UITableView (https://github.com/natelyman/SwiftImageLoader) . The problem is that it doesn't support gifs. So I did case statement to independently retrieve the gif if need be and display the gif using another library.
Problem
Now the problem is that whenever I try loading a gif, the scrolling gets really choppy.
Question
Can someone please help me figure this out? Does it involve putting it on a background thread? If so, how?
Code
if let url = NSURL(string: arrayByVotes[indexPath.row].objectForKey("thumbnail") as NSString) {
let imageURL = arrayByVotes[indexPath.row].objectForKey("thumbnail") as NSString
if (imageURL.lowercaseString.rangeOfString("gif") != nil) {
cell.thumbnail.image = UIImage.animatedImageWithAnimatedGIFURL(url)
} else {
ImageLoader.sharedLoader.imageForUrl(arrayByVotes[indexPath.row].objectForKey("thumbnail") as NSString, completionHandler:{(image: UIImage?, url: String) in
cell.thumbnail.image = image
})
}
}
Maybe having many gif images in memory at the same time is affecting the performance of the scrolling. Try removing the images from the cells that are invisible and add the image only when the cell will show up. A good method for this would be tableView(_:willDisplayCell:forRowAtIndexPath:) from the UITableViewDelegate
Cache manifest works fine and events fired in safari in IOS 8. Not working at all in WKWebView anyone else solve this issue?
import UIKit
import WebKit
class ViewController: UIViewController {
#IBOutlet var containterView : UIView! = nil
var webView : WKWebView?
override func loadView(){
super.loadView()
self.webView = WKWebView()
self.view = self.webView!
}
override func viewDidLoad() {
super.viewDidLoad()
var url = NSURL(string:"http://html5demos.com/offlineapp")
var req = NSURLRequest(URL:url)
self.webView!.loadRequest(req)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
The application cache comes back as supported if I were to use html5test.com
EDIT:
window.applicationCache does not return undefined either when loaded from WKWebView
console.log("Initializing Page");
if (window.applicationCache == undefined){
console.log("Application cache not suported!");
updateSplash();
}
console.log(window.applicationCache); returns: DOMApplicationCache
EDIT 2:
if (typeof window.applicationCache.update === 'function'){
console.log("Application has method update");
console.log(window.applicationCache.update); //shows swapCache() and update() methods
window.applicationCache.update();
}
window.applicationCAche.update() throws Error: InvalidStateError: DOM Exception 11: An attempt was made to use an object that is not, or is no longer, usable.
Just for the record, this question appears to have been asked on and linked from the Apple Developer Forums. The official response from Apple is that the HTML5 Application Cache functionality is not available in WKWebView:
The offline application cache is not enabled in WKWebView. Feel free to request that it be made available via https://bugreport.apple.com.
I think you are trying to solve the same problem as I do. This is what I do.
Save the start page of your web app into one HTML file(index.html), embedding everything (CSS, JS, images as base 64, icon fonts). And add that file into your Xcode project.
Start the app by reading the content of the HTML file and load it in your WKWebView. You can set the base as the same url you are supposed to start with. This way, it'll be as if the web app is opened on your web site.
The benefit is that your app will always start even when the user's network isn't good. Here's the SWIFT code that I use, courtesy of Matt Neuberg (https://books.google.com/books?id=wLaVBQAAQBAJ&pg=PT669&lpg=PT669&dq=addConstraints+wkwebview&source=bl&ots=7trE7MR1zR&sig=VT6GDBGbDw9dh89wDb5Uajd4gUY&hl=en&sa=X&ei=cyyeVNH4MM3ToATukoDgAQ&ved=0CDkQ6AEwBA#v=onepage&q=addConstraints%20wkwebview&f=false). If you want the full source code, please let me know and I'll post it on Github.
let templatepath = NSBundle.mainBundle().pathForResource("index", ofType: "html")!
let base = NSURL(string:"http://m.ftchinese.com/iphone-2014.html#iOSShare")
var s = NSString(contentsOfFile:templatepath, encoding:NSUTF8StringEncoding, error:nil)!
self.webView!.loadHTMLString(s, baseURL:base)