Is it possible to write an app to behave like the photo picker does in the Photos app? Namely allowing users to select multiple images and greying out or putting a green tick on the selected ones?
I've tried UIImagePickerController, but that appears to just dim the image when it's touched.
If you’re working with iOS 4 then yes you can (but we’re bound by the oh-so-silly NDA for now), with a custom interface. Else maybe you’d like to look into Three20, it has an image picker which intend to mimic the original and works very well with custom photos (that is, not those in the camera roll or accessible with the Photos app). Maybe you could fork it and add custom behavior.
Related
I'm using Xamarin for Visual Studio, and am getting frustrated trying to do what I would think should be a very simple thing: creating a launch (splash) screen for iOS, that has a single image that is centered on the screen (vertically and horizontally centered).
I'm creating it the recommended way, using a storyboard (other methods, like using an assets catalog, are considered deprecated as of iOS 9). In the storyboard, I have a View Controller, which contains a View, which contains an Image View. In the Properties pane, I've tried messing with the Mode (in Widget tab), and I've tried playing around with contstraints - which I think might be the key, but it is difficult to understand how it all works together.
You need to add the Splash screen in the applications properties (Launch Images). You need to create the image and upload it via that section. I couldn't find anything saying that the use of Asset catalogues are depreciated.
I have a brand new Swift 2.0 XCode 7 Storyboard based application.
Target is set to 9.2. I'm currently supporting any device with GPS that can run ios 9.2
I started with the Tabbed View Template and I'm working in wAny and hAny and a single Storyboard.
It works fine in the simulator on a bunch of phones, both orientations and works fine on my 6s plus, 6s, 6 plus and a 5.
But for some users the scaling is wrong and everything comes out squished.
Even in landscape mode the TabBar Icons are very close to each other.
Narrower than even on my 6s plus in portrait.
I believe this is caused by my application not having a Launch bitmap.
My understanding is there are two ways to implement this.
Launcher .XIB/.NIB with half a dozen specific sized bitmaps attached. Or a StoryBoard Launcher with ... exactly what.
The "Or StoryBoard" is a little vague. But I wanted to keep things using the modern approach since this app is new and targeted users tend to have the latest device.
So I created my Launch Image set and tried to attached it to the UIImageView in the Launcher StoryBoard. It won't list items that are tagged as "Launcher Image Set". It will show other Image Sets and Icons. But not the ones specifically for Launcher. It shows an "L" in the xcassets list next to the Launcher Image set. I believe I have the build project setting set correctly and it looks perfect on many of the same exact devices.
After some digging, I read that if you use the "StoryBoard" method you don't need the 6 or so bitmaps anymore. You can put anything in the Storyboard Launcher View and treat it just like you would treat your main storyboard.
So I did that. I just centered a small image.png file in the View of the Launchers Storyboard. Works on all simulations and my iPhone 6s plus. I did not pin it to the edges because that would mess up the aspect ratio of the image.
A very small set of users still have the issue and one of them even uninstalled and reinstalled.
I tried playing with setting phone Zoomed, Normal, Text Size, Bold etc. They all work. Users also don't have anything out of the ordinary on these system settings.
So first, do I need the 6 proper sized bitmaps or not? I read conflicting info on this.
If I want to use the 6 images on a storyboard how to I get them in the UIImageView of the Launcher StoryBoard if they won't list? Should I put them in a regular image set. Does the "Launcher Image Set" only work for the for the Launcher.XIB?
If it's not the Launcher window, what else could it be causing this?
I know I could create a XIB/NIB with the 6 bitmaps. But that seems like I'm going backwards and I don't care about old OS versions or older phones.
I think I found my answer. When using a Storyboard Launcher you cannot use a "Launch Image Set" for your Launcher Storyboard. You have to use an Image Set.
This is the best Video I found that covers it A-Z.
https://www.youtube.com/watch?v=Vz6tCgXgZFo
It also didn't fix my initial problem. Which I'll post separately. It scales correct in Portrait but not in Landscape for hand full of users. Using the same hardware as others that it works fine on.
I developed my app for Ipad, now I should adapt it for Iphone. My app is quite heavy with a lot of images that should be available offline. These images are located in xib files and are sometimes loaded dynamically from app bundle. I need to limit the size of my app.
should I make a universal app or two different apps (each one with its own set of images optimized for the device)?
If I do a single universal app can I dynamically resize my "dynamically loaded images" in code. what should I do for the images in xibs?
I finally found my answer, one app with different xib sharing the same view controllers.
To limit the weight :
Some images must be modified (eg: backgrounds) because they need to
be adapted to the iphone screen resolution. I just named them
image~iphone.png. The cool thing is that you dont need to modify
images'name in xib or code because the ~iphone signifies image for
the iphone.
Some others can remain the same (eg: buttons) and I'll just size them
down in the IB.
I developed some app for iPhone/iPad, so I know the basic concepts of Cocoa programming. Now I need to write a Mac OS X application. If you help me to choose the right controls to use, I'll study the Apple documentation reference for them.
I need:
a control to show a grid of thumbnails (png images); I'll be able to change the order of the thumbnails by dragging and dropping them;
a control to show a single image (e.g. UIImageView of Cocoa Touch) with the possibility to drag and drop another image over the first one; besides I need to move and resize the second image by dragging its corners (as if corners were "anchors");
a control to browse the media files on the Mac (possibly iPhoto images, iTunes DRM-free songs, or simply the content of a given folder), like the media browser of iMovie.
I use Xcode 4.2.
You can use NSCollectionView and co. for this. Xcode has a sample application somewhere in documentation (browsing various images) as well as tutorial on how to setup NSCollectionView yourself.
Check NSImageView. You can basically find any Cocoa control alternative to Cocoa Touch just by changing UI prefix to NS.
There is no such control per-se (unless IKImageBrowser for backgrounds), but using aforementioned NSCollectionView and some API for media files you should get around pretty quickly.
Also check ImageKit framework for images (for browsing, viewing and modifying).
I want to make an app that shows pictures. But I want to be able to zoom in and out with gestures. I fixed this by including a toolkit into my project. But my actual question is, can I use or is there a control that's already created for me to show pictures like the picture library of the WP7 phone itself. I thought there wasn't but the Facebook app has a similar way of showing the pictures. Did Facebook rewrite the whole thing or is there a control somewhere that someone made?
The SlideView control in Telerik's RadControls for Windows Phone sounds like what you're looking for.
Have you tried a MultiScaleImage control? It's designed to work with multiple layers, but if you only specify one layer, it might suit what you're trying to do.