Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
Closed 9 years ago.
Improve this question
I have an iphone app with a picture of a face in the uiimage. I want to only change the eye color on the face by tapping on a button or tapping on a color wheel. Can you give me some help in what code I would need.
I would suggest taking a look at OpenCV. It works quite well on iOS devices, the main code comes with examples on how to build iOS applications and there is a lot of material on how to do eye detection and from there you should be able to change the colors.
Keep in mind this is not a simple task and you could accomplish with a easier thing. But you could learn a lot and there are tons of good resources around this topics.
If you want to do something faster, you might be able to just detect the touch on the UIView(enable user interaction) and present a color picker, after the color has been presented you could create a simple view on top of the image that has a circle with the color that was selected. It would be crappy, but might be a good idea to do a simple simple prototype.
Related
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 4 years ago.
Improve this question
Im trying to create a view that glows very intensely and in the dark even, kind of like what this app here has accomplished (https://itunes.apple.com/us/app/mood-colors/id545822095?mt=8). I tried adding a sprite kit particle to the view and started messing with that but it really didn't take me anywhere and I couldn't get the results I wanted. Any help would be greatly appreciated. Also, incase you want to know, I am working with Swift 4 on a regular single view app and I am a bit of a beginner.
Thanks in advance.
This is only images showed with bright colors. If the images have very vibrant colors this could be achieved. It also looks like there are several shapes that the user can set a color to themself. But please bear in mind that phones using OLED (as iPhone X) can burn the image in and destroy the screen if something is shown very statically.
If you like to draw shapes (like a star) there is a solution That can be found here
Happy coding!
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Questions asking us to recommend or find a tool, library or favorite off-site resource are off-topic for Stack Overflow as they tend to attract opinionated answers and spam. Instead, describe the problem and what has been done so far to solve it.
Closed 8 years ago.
Improve this question
I just want to have my subject talk into the phone and display the volume on the screen.
Any recommendations for an approach?
Thanks.
You can check SFGaugeView :
SFGaugeView
A custom UIView with a gauge control (tachometer like control).
This one "Detects swipe gesture and sets the needle/level appropriately.", but with a bit of work you will be able to disable that.
You could use LARSBar :
LARSBar
A UISlider subclass mimicking the awesome EQ slider found on Twitter's #music app.
If you need more precise help, tell us what you tried, what is working and what isn't.
Do you need help to get the level input in the mic ? Help to draw the view ? Be more precise.
Please see https://github.com/ChiefPilot/F3BarGauge
From their description:
This control is intended to replicate/simulate the level indicator on an audio mixing board. These indicators are usually segmented/stacked LEDs, with several colors to indicate thresholds. This control replicates that look, using Quartz drawing primitives, and auto-adjusts to horizontal or vertical orientation. Additionally, the colors, number of bars, peak hold, and other items are easily customized.
Apple also has some sample code that can be used to get you started: avTouch
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Questions asking us to recommend or find a tool, library or favorite off-site resource are off-topic for Stack Overflow as they tend to attract opinionated answers and spam. Instead, describe the problem and what has been done so far to solve it.
Closed 8 years ago.
Improve this question
I'm looking for anything that could guide me on implementing long shadows drawing on runtime using Core Graphics or other available framework in iOS SDK. The screenshot below presents how I imagine the shadows:
I have already done some research, I didn't found any libraries that could provide this or similar features. However I found that video on youtube: http://www.youtube.com/watch?v=zS7ZjFZ-0lk presenting something I would be really pleased with. Unfortunately I was unable to contact the author or get more informations about the implementation.
I have wrote some tests and achieved some results, in fact the screenshot above was taken from my test application. To make it simpler it displays png image with transparency using UIImageView, then it creates another UIImageView, inserts it below the main view and draws shadow to it. But still this is not something that could be used in real life. My approach was to draw shadow multiple times with different offset. The problem is that solution have some cons. To keep performance hight, the graphics context I am drawing to is converted to UIImage and added to the view. That makes my shadows not as dynamic as I would like them to be (applied once, are static). The second major problem with multiple shadows is that they overlap each other, so using alpha channel transparency gives poor effects. No problem when using opaque shadows (for example from black to white), but that makes my solution even less usable (because this kind of fake shadows looks good only when drawing on plain color backgrounds). Any help would be appreciated.
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
Closed 9 years ago.
Improve this question
I want to draw a words grid that user can select the wrods, like the image below
I think the best way is to use a UICollectionView element for draw a grid but how can I handle touch events and mark selected letters?
There is no one answer to your question. You could use individual UIButtons for each letter or set up your own touch coordinate tracking system corresponding to letters or do something completely different. It boils down to what you feel comfortable working with and your experience level. To get the ball rolling, I would suggest you take a look at this Ray Wenderlich tutorial which shows how to create a letter word game by dragging letter tiles. The tech in this tutorial will definitely help you with your project.
Updated:
If you go the button route, you can create them programmatically and pretty much do anything you want. Change their title (in your case) letter, show or hide them, track various kind of touches, and so on. For the letters and tracking touches, there are probably a number of methods of doing this. Try putting your letters on a subview while keeping track of their center coordinates. Then add a new subview over your letters to track the user's touches.
You will have to read and understand the UIGestureRecognizer Class.
Here is an example of how to get a user's screen coordinates from a touch.
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 9 years ago.
Improve this question
So, my background is in the color #DBDBDB. I need an animated loading image like this one for my site's background. Unfortunately since GIFs don't support partial transparency, I'm left with a white outline in my background. I've tried to take this image and edit it to use the same background color to no avail. Then I tried to make a loading animation of my own but that came out horrible. So I do not know what to do. Can anyone help me? I would like to use this image but instead of a white outline, I would like an outline in the color #DBDBDB or a background #DBDBDB
Or to be told how to do this in CS5.5
You can use the wonderful little service AjaxLoad to generate a loading animation for any combination of colors. Just pick #DBDBDB as the background color and use "Indicator Big" as your style.
Here's your image: