For the life of me I can't get the GIF to display using the SwiftyGif library. Is there something I'm missing here?
var outgoingMessageView: UIImageView!
outgoingMessageView = UIImageView(frame:
CGRect(x: llamaView.frame.maxX - 50,
y: llamaView.frame.minY + 75,
width: bubbleImageSize.width,
height: bubbleImageSize.height))
outgoingMessageView.delegate = self
if textIsValidURL == true {
print("URL is valid")
outgoingMessageView.image = bubbleImage
let maskView = UIImageView(image: bubbleImage)
maskView.frame = outgoingMessageView.bounds
outgoingMessageView.mask = maskView
outgoingMessageView.frame.origin.y = llamaView.frame.minY - 25
let url = URL(string: text)
outgoingMessageView.setGifFromURL(url, manager: .defaultManager, loopCount: -1, showLoader: true)
} else {
outgoingMessageView.image = bubbleImage
}
// Set the animations
label.animation = "zoomIn"
//outgoingMessageView.animation = "zoomIn"
// Add the Subviews
view.addSubview(outgoingMessageView)
print("outgoingMessageView added")
The delegate lets me know it runs successfully via:
gifDidStart
gifURLDidFinish
Checking outgoingMessageView.isAnimatingGif() tells me it's still running.
Checking outgoingMessageView.isDisplayedInScreen(outgoingMessageView) tells me it's not being displayed
It "finishes" almost immediately, but it's the same in the example project, yet the gif still loops and displays in the project. I've changed loop counts, imageviews, not running via a mask as I intended and instead just a UIImageView, changed the GIF urls, all to no avail. Is this problem related to my view structure?
I am calling this function based on actions in a collectionView.Image Example Here
Using the latest SwiftyGIF version.
I just made a sample about this with the following code:
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
testSwiftyGif()
}
public func testSwiftyGif() {
let imgPath = "https://github.com/kirualex/SwiftyGif/blob/master/SwiftyGifExample/1.gif?raw=true"
let imgUrl = URL(string: imgPath)!
var outgoingMessageView: UIImageView!
outgoingMessageView = UIImageView(frame:
CGRect(x: llamaView.frame.maxX - 50,
y: llamaView.frame.minY + 75,
width: 200,
height: 200))
outgoingMessageView.setGifFromURL(imgUrl, manager: .defaultManager, loopCount: -1, showLoader: true)
self.view.addSubview(outgoingMessageView)
print("outgoingMessageView added")
}
And it adds the gif as intended:
Aparently the issue is your view structure. The image is being added to the view, but the view is not visible due mask, frame or superview position.
Try to check the view hierarchy using the xCode View Hierarchy Debugger
Related
This is a macOS app, I'm trying to take a full page screenshot of a webview, but i'm unable to get the screenshot of the full page.
Screenshot function.
func takescreenshot(
_ webView: WKWebView,
didFinish navigation: WKNavigation!) {
let configuration = WKSnapshotConfiguration()
configuration.afterScreenUpdates = true
webView.takeSnapshot(with: configuration) { (image, error) in
if let image = image {
//Save Image
}
}
}
from the answers I've seen here the solution seems to be setting the webview scrollview offset, but this is only available for ios. This is the error i get:
Value of type "WKWebView" has no member "scrollView"
I guess the problem is caused by an internal scroll view that optimizes drawing for scrolling - by redrawing only parts that are soon to be visible.
To overcome this, you can temporarily resize the web view to it's full content extent. I know it's not an ideal solution, but you may derive better one based on this idea.
webView.evaluateJavaScript("[document.body.scrollWidth, document.body.scrollHeight];") { result, error in
if let result = result as? NSArray {
let orig = webView.frame
webView.frame = NSRect(x: 0, y: 0, width: (result[0] as! NSNumber).intValue, height: (result[1] as! NSNumber).intValue)
let configuration = WKSnapshotConfiguration()
webView.takeSnapshot(with: configuration) { image, error in
if let image = image {
NSPasteboard.general.clearContents()
NSPasteboard.general.setData(image.tiffRepresentation, forType: .tiff)
}
}
webView.frame = orig
}
}
FirebaseUI has a nice pre-buit UI for Swift. I'm trying to position an image view above the login buttons on the bottom. In the example below, the imageView is the "Hackathon" logo. Any logo should be able to show in this, if it's called "logo", since this shows the image as aspectFit.
According to the Firebase docs page:
https://firebase.google.com/docs/auth/ios/firebaseui
You can customize the signin screen with this function:
func authPickerViewController(forAuthUI authUI: FUIAuth) -> FUIAuthPickerViewController {
return FUICustomAuthPickerViewController(nibName: "FUICustomAuthPickerViewController",
bundle: Bundle.main,
authUI: authUI)
}
Using this code & poking around with subviews in the debuggers, I've been able to identify and color code views in the image below. Unfortunately, I don't think that the "true" size of these subview frames is set until the view controller presents, so trying to access the frame size inside these functions won't give me dimensions that I can use for creating a new imageView to hold a log. Plus accessing the views with hard-coded index values like I've done below, seems like a pretty bad idea, esp. given that Google has already changed the Pre-Built UI once, adding a scroll view & breaking the code of anyone who set the pre-built UI's background color.
func authPickerViewController(forAuthUI authUI: FUIAuth) -> FUIAuthPickerViewController {
// Create an instance of the FirebaseAuth login view controller
let loginViewController = FUIAuthPickerViewController(authUI: authUI)
// Set background color to white
loginViewController.view.backgroundColor = UIColor.white
loginViewController.view.subviews[0].backgroundColor = UIColor.blue
loginViewController.view.subviews[0].subviews[0].backgroundColor = UIColor.red
loginViewController.view.subviews[0].subviews[0].tag = 999
return loginViewController
}
I did get this to work by adding a tag (999), then in the completion handler when presenting the loginViewController I hunt down tag 999 and call a function to add an imageView with a logo:
present(loginViewController, animated: true) {
if let foundView = loginViewController.view.viewWithTag(999) {
let height = foundView.frame.height
print("FOUND HEIGHT: \(height)")
self.addLogo(loginViewController: loginViewController, height: height)
}
}
func addLogo(loginViewController: UINavigationController, height: CGFloat) {
let logoFrame = CGRect(x: 0 + logoInsets, y: self.view.safeAreaInsets.top + logoInsets, width: loginViewController.view.frame.width - (logoInsets * 2), height: self.view.frame.height - height - (logoInsets * 2))
// Create the UIImageView using the frame created above & add the "logo" image
let logoImageView = UIImageView(frame: logoFrame)
logoImageView.image = UIImage(named: "logo")
logoImageView.contentMode = .scaleAspectFit // Set imageView to Aspect Fit
// loginViewController.view.addSubview(logoImageView) // Add ImageView to the login controller's main view
loginViewController.view.addSubview(logoImageView)
}
But again, this doesn't seem safe. Is there a "safe" way to deconstruct this UI to identify the size of this button box at the bottom of the view controller (this size will vary if there are multiple login methods supported, such as Facebook, Apple, E-mail)? If I can do that in a way that avoids the hard-coding approach, above, then I think I can reliably use the dimensions of this button box to determine how much space is left in the rest of the view controller when adding an appropriately sized ImageView. Thanks!
John
This should address the issue - allowing a logo to be reliably placed above the prebuilt UI login buttons buttons + avoiding hard-coding the index values or subview locations. It should also allow for properly setting background color (also complicated when Firebase added the scroll view + login button subview).
To use: Create a subclass of FUIAuthDelegate to hold a custom view controller for the prebuilt Firebase UI.
The code will show the logo at full screen behind the buttons if there isn't a scroll view or if the class's private constant fullScreenLogo is set to false.
If both of these conditions aren't meant, the logo will show inset taking into account the class's private logoInsets constant and the safeAreaInsets. The scrollView views are set to clear so that a background image can be set, as well via the private let backgroundColor.
Call it in any signIn function you might have, after setting authUI.providers. Call would be something like this:
let loginViewController = CustomLoginScreen(authUI: authUI!)
let loginNavigationController = UINavigationController(rootViewController: loginViewController)
loginNavigationController.modalPresentationStyle = .fullScreen
present(loginNavigationController, animated: true, completion: nil)
And here's one version of the subclass:
class CustomLoginScreen: FUIAuthPickerViewController {
private var fullScreenLogo = false // false if you want logo just above login buttons
private var viewContainsButton = false
private var buttonViewHeight: CGFloat = 0.0
private let logoInsets: CGFloat = 16
private let backgroundColor = UIColor.white
private var scrollView: UIScrollView?
private var viewContainingButton: UIView?
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
// set color of scrollView and Button view inside scrollView to clear in viewWillAppear to avoid a "color flash" when the pre-built login UI first appears
self.view.backgroundColor = UIColor.white
guard let foundScrollView = returnScrollView() else {
print("😡 Couldn't get a scrollView.")
return
}
scrollView = foundScrollView
scrollView!.backgroundColor = UIColor.clear
guard let foundViewContainingButton = returnButtonView() else {
print("😡 No views in the scrollView contain buttons.")
return
}
viewContainingButton = foundViewContainingButton
viewContainingButton!.backgroundColor = UIColor.clear
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
// Create the UIImageView at full screen, considering logoInsets + safeAreaInsets
let x = logoInsets
let y = view.safeAreaInsets.top + logoInsets
let width = view.frame.width - (logoInsets * 2)
let height = view.frame.height - (view.safeAreaInsets.top + view.safeAreaInsets.bottom + (logoInsets * 2))
var frame = CGRect(x: x, y: y, width: width, height: height)
let logoImageView = UIImageView(frame: frame)
logoImageView.image = UIImage(named: "logo")
logoImageView.contentMode = .scaleAspectFit // Set imageView to Aspect Fit
logoImageView.alpha = 0.0
// Only proceed with customizing the pre-built UI if you found a scrollView or you don't want a full-screen logo.
guard scrollView != nil && !fullScreenLogo else {
print("No scrollView found.")
UIView.animate(withDuration: 0.25, animations: {logoImageView.alpha = 1.0})
self.view.addSubview(logoImageView)
self.view.sendSubviewToBack(logoImageView) // otherwise logo is on top of buttons
return
}
// update the logoImageView's frame height to subtract the height of the subview containing buttons. This way the buttons won't be on top of the logoImageView
frame = CGRect(x: x, y: y, width: width, height: height - (viewContainingButton?.frame.height ?? 0.0))
logoImageView.frame = frame
self.view.addSubview(logoImageView)
UIView.animate(withDuration: 0.25, animations: {logoImageView.alpha = 1.0})
}
private func returnScrollView() -> UIScrollView? {
var scrollViewToReturn: UIScrollView?
if self.view.subviews.count > 0 {
for subview in self.view.subviews {
if subview is UIScrollView {
scrollViewToReturn = subview as? UIScrollView
}
}
}
return scrollViewToReturn
}
private func returnButtonView() -> UIView? {
var viewContainingButton: UIView?
for view in scrollView!.subviews {
viewHasButton(view)
if viewContainsButton {
viewContainingButton = view
break
}
}
return viewContainingButton
}
private func viewHasButton(_ view: UIView) {
if view is UIButton {
viewContainsButton = true
} else if view.subviews.count > 0 {
view.subviews.forEach({viewHasButton($0)})
}
}
}
Hope this helps any who have been frustrated trying to configure the Firebase pre-built UI in Swift.
I am trying to display an OS X application statusItem in the System Status Bar and am having success with everything except the fact that the title is being cut off. I am initializing everything like so:
let statusItem = NSStatusBar.systemStatusBar().statusItemWithLength(-1)
func applicationDidFinishLaunching(aNotification: NSNotification) {
let icon = NSImage(named: "statusIcon")
icon?.template = true
statusItem.image = icon
statusItem.menu = statusMenu
statusItem.title = "This is a test title"
}
The problem is the statusItem.title is appearing like so:
As you can see the application next to mine (iStatMenuBar) is cutting off the title to my application (or something similar is happening)
If I comment out the icon for the statusItem, it works and shows the entire title but when I re-add the icon it cuts off again. Is there a way for the two (icon and title) to co exist? I have reviewed some Apple docs and may have missed a critical piece which explains this.
Thanks guys.
One option would be to assign a custom view to your statusBarItem and within that view's class override drawRect(dirtyRect: NSRect) e.g.
private var icon:StatusMenuView?
let bar = NSStatusBar.systemStatusBar()
item = bar.statusItemWithLength(-1)
self.icon = StatusMenuView()
item!.view = icon
and StatusMenuView might look like:
// This is an edited copy & paste from one of my personal projects so it might be missing some code
class StatusMenuView:NSView {
private(set) var image: NSImage
private let titleString:NSString = "really long title..."
init() {
icon = NSImage(named: "someImage")!
let myWideStatusBarItemFrame = CGRectMake(0, 0, 180.0, NSStatusBar.systemStatusBar().thickness)
super.init(frame.rect)
}
override func drawRect(dirtyRect: NSRect)
{
self.item.drawStatusBarBackgroundInRect(dirtyRect, withHighlight: self.isSelected)
let size = self.image.size
let rect = CGRectMake(2, 2, size.width, size.height)
self.image.drawInRect(rect)
let titleRect = CGRectMake( 2 + size.width, dirtyRect.origin.y, 180.0 - size.width, size.height)
self.titleString.drawInRect(titleRect, withAttributes: nil)
}
}
Now, the above might change your event handling, you'll need to handle mouseDown in the StatusMenuView class.
I'm working on a custom keyboard and want to add some UIImageViews to the interface. I can load a .Xib fine as shown below, but when I try to create a UIImage within the main view it causes it to crash. Do you know why this is?
import UIKit
class KeyboardViewController: UIInputViewController {
override func updateViewConstraints() {
super.updateViewConstraints()
}
override func viewDidLoad() {
super.viewDidLoad()
let myView = NSBundle.mainBundle().loadNibNamed("KeyboardView", owner: nil, options: nil)[0] as UIView
self.view.addSubview(myView)
let image = UIImage(named: "grid.png")
let imageSize = CGSize(width: 216, height: 216)
var gridImageView = UIImageView(frame: CGRect(origin: CGPoint(x: 0, y: 0), size: imageSize))
gridImageView.image = image
//tried this- Crashes
self.addSubview(gridImageView)
//also tried this- Crashes
self.view.insertSubview(view: gridImageView, aboveSubview: myView)
}
If I manually add a ImageView to the .XIB, it also crashes. I feel like UIInputViewController will not let you use a Image View, even though the documentation would indicate it's possible. I'm usually an idiot with these things so am probably misunderstanding the docs:
https://developer.apple.com/library/prerelease/ios/documentation/UIKit/Reference/UIInputViewController_Class/index.html#//apple_ref/occ/instp/UIInputViewController/inputView
I'm trying to autoplay a video in my app. The video needs to play without the controls.
I've set up the video and the settings, including MPMovieControlStyle.None but the video controls appear for about 2 seconds before disappearing. I have no idea why.
I've used this code (exact code) for another project and it works well, but here for some reason it will not.
override func viewDidLoad() {
super.viewDidLoad()
generateVideo()
}
func generateVideo () {
let movieURL = NSBundle.mainBundle().pathForResource("video", ofType: "mp4")
let videoFilePath = NSURL(fileURLWithPath: movieURL!)
self.view.addSubview(MoviePlayerViewController.moviePlayer.view)
self.view.sendSubviewToBack(MoviePlayerViewController.moviePlayer.view)
MoviePlayerViewController.moviePlayer.contentURL = videoFilePath
MoviePlayerViewController.moviePlayer.shouldAutoplay = true
MoviePlayerViewController.moviePlayer.prepareToPlay()
MoviePlayerViewController.moviePlayer.view.frame = CGRect(x: 0, y: 0, width: self.view.frame.size.width, height: self.view.frame.size.height)
MoviePlayerViewController.moviePlayer.fullscreen = true
MoviePlayerViewController.moviePlayer.controlStyle = MPMovieControlStyle.None
MoviePlayerViewController.moviePlayer.play()
MoviePlayerViewController.moviePlayer.repeatMode = MPMovieRepeatMode.One
MoviePlayerViewController.moviePlayer.scalingMode = MPMovieScalingMode.AspectFit
}
Any idea why this is happening?
After checking how the view is loaded I'm sure the problem is there.
I used a different layout with one Storyboard calling another storyboard and that was the source of the problem.