I'm using a zbar reader view controller and when I rotate the iPhone quickly enough that Portrait (up) goes straight to Portrait Upside Down (and vice versa) or I go straight from Landscape Left to Right (and vice versa) then the camera rotates 180 degrees. I am using IOS 6, 7 and 8 and am using Objective C.
How do I prevent this camera rotation from happening?
Related
My scene is set to be .AspectFit. I have camera node in scene center and it is connected. Everything works fine for iPad landscape, but when I rotate simulator or run in different device then iPad in landscape camera is not centred. Why?
This is for landscape with camera on center:
After rotation camera is not centred:
Similar issue is for e.g. for landscape iPhone5s:
Why is camera shifted with scene setting .AspectFit with other device then iPad in landscape?
You can try out or experiment with this project on bitbucket I made.
EDIT: When I don't use camera, everything is on its place.
Set the scene anchor point to 0.5, 0.5 to center your camera onto the scene , there is an issue with the view to scene conversion, and will draw in the top left corner instead of the center. (Also, you will notice your hello world is off, this is because it is not accounting for the anchor change)
Perhaps the lack of a camera will make the scene translate where it draws to inside of the black bars, I have no idea.
Ive been making an app using sprite kit in Xcode 7. I made all my sprite nodes positioned around by referencing other sprite nodes and self.frame
for example
self.block.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame)
When I came to test my app on an iPhone 6 Plus (I previously tested on iPhone 4s but it worked nicely on an iPhone 5) My app didn't scale the nodes, Just the space Between them. The game relies on everything being the same otherwise people playing on an iPhone 6 would find it easier then people playing on a smaller device. Is there anyway that I could make the iPhone 6 view just a stretched version of the iPhone 5 view? Thanks Guys!
It's best not to position your sprites using self.frame as a reference. Much better to treat the scene as the "true" coordinates and let SpriteKit scale your scene for you.
ie. Specify the scale mode of your scene when you create it (probably in the view controller viewDidLoad). I prefer AspectFill for the scale mode, which makes sure the screen is filled, but you will lose the edges on some devices. Just make sure the core gameplay is in the middle of the scene.
scene.scaleMode = .AspectFill
Then, position your sprites using the size of your scene for reference. On a landscape scene, I tend to use a scene size of 1024x768 (iPad size).
Hope that helps.
Another way: If you remove the iPhone 6 and iPhone 6+ launch images from the project then those devices will switch to "zoom mode", which is exactly the same view as on iPhone 5, just bigger (well, zoomed).
Just look in your project for "Images.xcassets", there is a image-set called "LaunchImage". In this image-set are multiple other images, just remove the one for iPhone 6 and 6+.
I've a landscape Ipad app (and portrait in iPhone) that opens up the camera to take a photo always rotated of 90 degrees.
It will happen since iOS 8.x.
the code is:
[self.importPopoverController presentPopoverFromRect:self.avatarImageView.frame
inView:self.avatarImageView
permittedArrowDirections:UIPopoverArrowDirectionAny
animated:YES];
how can I fix that?
We're developing an AIR app for android and iOS. An important part of the app is taking photos. Using flash.media.CameraUI works perfectly on android, but we experience problems on iOS.
In the iOS camera application, when we rotate the iPad, the orientation is wrong: If we rotate the pad clockwise, the image is rotated anticlockwise. The UI buttons have the correct orientation though, and when the photo is taken, the resulting bitmap has the right orentation based on the orientation of the camera, not the actual view on the screen.
Looking at different camera apps, I notice that when the pad is rotated so the orientation changes clockwise, the camera does three things: First, the displayed image immediately becomes rotated 90 degrees anti-clockwise (so it looks wrong). Then, the image slowly rotates 90 degrees clockwise, to restore the correct orientation. In addition, the UI buttons change orientation so the text is displayed correctly.
It seems as in our app, it only rotates the image slowly without doing the first immediate rotation. Thus, the end result is wrong.
Anyone know how to fix this?
After some more research, I found that the issue isn't just restricted to AIR.
UIImagePickerController camera view rotating strangely on iOS 8 (pictures)
Who can give me an minimal example in IOS 5 or higher
of an app that captures the video of the backside cam with the following requirements:
The resolution of the image captured by the camera is 1280x720
The preview layer is a AVCaptureVideoPreviewLayer and fills the full screen on both IPhone 5 and 4
The orientation of both video and preview is LandScapeRight
If I want to zoom the preview, I correctly zoom into the center of my landscape image
I got everything working until 4.). But everytime I try to apply the zoom with
viewLayer.affineTransform = CGAffineTransformMakeScale(2, 2);
I observe that in landscape orientation the center of the focused image is left below the center of the unzoomed image. That is the problem I am trying to solve. So if I set the scale to 1, 1.3, 1.6 or 2.0 I want to always see the center of my unzoomed image.