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Hi I want to create bar chart application with slider control in ios. once my slider is changed my chart also changed and their datas also changed. I am new for this field. I dont know how and where to start in this application. If anybody knows please guide me or any other links send me. Advance in thanks.
There are various ways of achieving this.
You can use API's such as Core Plot to achieve your requirement. At the same time you can use Core Graphics & quartz Core to achieve it.
You should also check this out Bar Graphs in iOS app
i've made a hack
Make custom uiview for each bar accord to your input values.
set frame of each uiview(bar) according to input values.
there is no need of corePlot files if u want simple bar graph
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I would like to create change theme component for my reader app. When user is changing theme then text and background are changing theirs colors. I was looking on other apps and I noticed that they are all using the same themes: white, back and sepia. Please refer to screenshoots below:
It almost looks like they are all using the same mechanism. I'm wondering how I can achieve similar effect? Is there any out-of-box component what iOS provides or I need to use UIAppearance protocol or maybe there is another way?
You can use a singleton to manage each color, when enter the app, if there's no setting color, give the default color.
when user change the theme, u should save the color config to local data. and post the notification to tell controllers to change theme(or in viewWillAppear manual change the color).
next time you enter the app, the color manage singleton read the local config you set, and show the right theme
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I am looking for either the terminology or a reference on how to do this.
When you Successfully build a project on Xcode a nice, looking alert pops up. Like the one below:
I have found only one other question on how to recreate this for Mac OS. I want the iOS version. I want to use this alert to show a count down for a timer. I have the count down fully functional but I'm not sure of a good way to display. I think this would be ideal for it.
I have the count down fully functional but I'm not sure of a good way to display
It's simply a view (UIView), with a transparent grey background color, rounded corners, and a light shadow. All of that can be readily be configured by straightforward view and layer properties in about three lines of code, and showing the view can be as simple as one line of code.
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Currently i am trying to create a custom progress indicator in my ipad app.But currently there is no such controller available in ios sdk.
So how to create this ?
I have a really interesting vision of this - you need to create a UIImageView like the one on your picture and leave the areas that need to be highlighted transparent. You then put a blue UIView underneath it and using animation block you change its frame - kinda 'drag' it to the right - so it looks like it's filling the progress indicator. It's rather simple, give it a try.
Your best bet is to use a CAShapeLayer to draw out your loading bar and then animate accordingly.
Joe Conway (formerly of Big Nerd Ranch) created a circular progress bar which can be found here
I would recommend following along with the code he laid out for his project and mend it accordingly.
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Anyone know what the control is called to achieve the functionality shown here in the iOS Stocks app?
I've been searching Google for things like 'Slidable UIView' but can't find anything!
If you mean the graph, there's no native component for that, but you can use an external library, for example CorePlot:
https://code.google.com/p/core-plot/
If you mean the scroll view with pages, it's just a UIScrollView with a content size of several pages and a UIPageController attached.
Sliding View -> Have a look at this:https://github.com/dickverbunt/DVSlideViewController.
Besides that you need to have pageControl:https://www.cocoacontrols.com/controls/smpagecontrol
This is how the dots appear in the image.
Plotting Graph -> Have a look at this: https://code.google.com/p/core-plot/
Tutorial for PageControl with ScrollView: http://iosmadesimple.blogspot.sg/2013/01/page-control-for-switching-between-views.html
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I created an app and got some feedback that it isn't clear what it does and how. I understand that I need to create a tutorial that is shown on initial launch.
After searching for terms like "how to create a feature tour for an iOs app", or, "Make a tutorial for an ios app" - I was getting tutorials for creating ios apps...
Simple solution would be to test for initial launch, open the tutorial slides I created, and save a flag, but maybe there is a more elegant framework that could help with features related to that (like adding popovers, callouts, screen shots etc)
Does anybody know of any?
Depending on how complex your app is it can be easily done using an instructional overlay. An overlay would some what block the background while showing with arrows and text what the user can do in specific areas.