I am working with a basic UIImagePickerController. I have read about camera overlays and am not ready / don't need to dive into that world yet.
After the user takes a photo, the UIImagePickerController displays a "Preview" screen. All I want to do is change the text on the button on the preview screen from "Use" to "Upload".
It seems to me that there should be a very easy way to access this, but I have found very few references to the "Preview" screen.
Any assistance would be appreciated.
That functionality is not exposed in the SDK. There is no way to customize the Preview screen.
Related
How can I simulate the tab-bar/camera behavior in the picture?
I have seen many apps which shows the very similar behavior, and I suspect there could be a library for it?
You can tab on the camera icon in the tab bar controller.
It opens camera, and you can also access your album by clicking the button on the right.
I am creating an application that is similar to the camera app provided in the iPhone. When the user launches the application, the camera should pop out, But i need a button to be displayed on the camera's view. (Similar to the slider provided in the camera app).
1.) Can this be done ?
2.) Are there any tutorials on this ? sample code to begin or any suggestions that might help
Here are your answers:
Yes.
http://www.musicalgeometry.com/?p=1273 //Sample code is in the tutorial.
Mark it correct if it helps.
Cheers,
Yes, you can create your overlay camera view. Just set yourPicker.showsCameraControls=NO; and pass your view to your picker camera overlay view: yourPicker.cameraOverlayView=yourView;
This can be done.
First checkout Access the camera with iPhone SDK for accessing the camera.
Next adding a button can be achieved by setting cameraOverlayView property
Has anyone used the Instagram app lately?
It has a very neat feature, where, while you are using camera, you can touch the 'eye' button, which pops up a small scrollable UI area that contains different filters that can be applied to the camera video.
Can anyone help me on what kind of UI element I should use to get such popup?
Thanks.
The one on the Instagram app looks like a simple UIScrollView with custom subviews added in. What these subviews contain and how they look is completely up to you and your design.
What is the best way to create tutorial or help screens that can be viewed in an iPhone App on launch?
I'm debating between using two paradigms:
Edit a screenshot of the app with an image editing program to add static help text. Interaction is tapping or scrolling through the tips. This involves creating a custom UIViewController to advance to the next help screen.
Create a custom iPhone UIControl on top of the App user interface that can be tapped to advance to the next tutorial tip. The application will transition between the modes and will be active, rather than static. It involves adding hooks into the App's custom ViewController's to handle "TutorialUIControl" objects.
Here's some screenshots of the application that I need to make help screen UI for, it's an application that creates artwork. More App Information
Screenshot 1: View mode that allows viewers to scroll through an image list, like the UIImagePicker, but for custom image collections.
Screenshot 2: Action mode - allows viewers to select images to save to the "My Saved" album from the active art generation album "My Evolution" or evolve images using sexual/asexual image reproduction.
The "right" answer really depends on the application you are designing. I would highly suggest getting as many apps as you can and looking at how they do help. See what works and what doesn't and think about how that is related to your own design.
In my app (a game) I chose to build a set of static images that could be scrolled through to provide detailed help (based on Apple's sample code). But, I also built an interactive tutorial that plays the first time you run the game. I also pop up a welcome overlay the first time the app is run and suggest what button to press to start a game.
It also helps if you test your tutorial with a lot of different people. After several designs with things too complex, I boiled down my instructions to something extremely simple: "Press the green buttons", and then built up from there.
You can easily store a preference to say whether the app has been launched before, and if that entry is blank you run the tutorial again.
You can create an HTML tutorial that you view through a UIWebView. In on of my iPad apps, I just made a large image that I presented modally with images and text explaining how to use the app.
For iPhone, the best way to include a "How-To" tutorial for your app would have to be a web document, seeing as how you can add images and formatted text.
Alternatively, You can add more views to your controllers with transparent backgrounds and animated buttons and text, for a more interactive feel.
To answer my own questions many months later.
I revamped and used WEPopover to show my help popups, as seen in the iPhone/iPad App, Wallpaper Evolution Lite. The help disappears only if tapped or the button it was attached to was pressed. Using this flow I could highlight a series of buttons to the user.
I added help images within the application to highlight interaction behaviors with the content. The tap, zoom, and drag images are fully interactive.
As #WrightsCS mentioned HTML is another avenue. I use the UIWebView to provide a more in depth help/tips screen with contact information.
In my upcoming app, I'm making use of a paging UIScrollView with help content highlighting app features. The help screen is loaded on the first start of the app, and is accessible through a help menu option.
Here's my fork of the WEPopover github project: https://github.com/PaulSolt/WEPopover
I am building a custom camera app, and would like to have the camera view similar to the native camera app in iPhone. (i.e., picks videos as a non-modal view, stays in the camera view after each video taken. I found the retake and use views unnecessary). Is there any possible way to do it? Thanks.
you can't do it for videos at present, but you can do it for still pictures in OS 3.1. if you search for "takePicture" and "cameraOverlayView" you should find helpful information; you can resize the preview window to be any size you like.