iphone

How to update the Location in CLLocationManager based on Time Interval

I have to update the newLocation in CLLocationManager Delegate depending on certain time interval ...

Timeline based animations on the iPhone/iPad

Hi guys and gals How would you go about creating a timeline animation for an iPhone or iPad application? I'm looking for something like a timeline animation in Flash. I don't need a technical explanation on how to program it, though. So here are some general questions: - I read something about UIView for PNG sequences, but aren't these...

What is open toolchain

Hi what is open tool chain in iphone applications development, i want to learn it from scratch . is there any link that can help me to learn. Thanx ...

Iphone geo location permission check

Dear Developers, Hi i have a quick question about the iphone (iOS) geolocation api's. Currenly i have a map in my application and the operating system will ask the user if it wants to allow the use of geolocations. Now thats all nice but the thing is i want to change my app when geolocations is allowed to a so called "Geo location" mode...

Customview like tableview in iphone SDK?

hi, I want to do custom tableview which scrolls horizontally.If you see this URL If you go to SUPERLIST tab in flash iphone simulator,you can see one column is differed from other columns which scrolls horizontally.any idea to do this?any help please? ...

Fullscreen texture iPhone OpenGL ES

I'm aware that OpenGL textures on the the iphone are required to be a power of 2, is this true of OpenGL 2.0 as well? If I have an image that is 320 x 480 in size and want to draw it full screen is there any possible way to do this with OpenGL. Thanks ...

iPhone SDK : Asynchronous Connection Retry Mechanism

Hi All, I have implemented the usual Asynchronous connection mode in one of my apps and it works fine. The error handling is also happening properly. I also have implemented the Reachability API by Apple. I would like to have for example 5 retires to be done when there is a network failure. Kindly suggest me a good way to implement t...

localization tutorial needed

hi all, i need some tutorials on localization of iphone app. hope for a quick reply.. regards shishir ...

Create curve shaped Scatterplot using Core plot

How to create a curve shaped scatterplot using core plot ? Now am getting linear shaped Scatterplot. All the examples showing here are in a linear shape. How to do it in curved shape ? Please help me.. ...

View transform seems to be ignored when animating on iphone. Why?

I have views that can be rotated, scaled and moved around the screen. I want the view to resize and be orthogonal when the user double tap's the view to edit the textview within. The code is below. Somewhere the transform is getting reset. The NSLog statement below prints the identity transform, but a print of the transform when the ...

Is it still true that it's a bad idea to name attributes and relationships like any non-parameter method of NSObject or NSManagedObject?

I did some little experimentation on this. I created an boolean attribute, named isFault. You know, that's a method of NSManagedObject and therefore actually not allowed for an attribute name because of KVC. Simply, I used the default Core Data template for this test, but created the data model programmatically so I can show you what ...

What can I do with an Transformable attribute type in Core Data on the iPhone?

There's this Transformable data type for attributes. What is it good for? Are there good examples? I'd like to play around with this. So after searching a while I came across this: NSValueTransformer. Seems to be something I need for this. So how would I get started with this? For example, if I wanted to store an UIColor object, would ...

Making UITableViewCells bleed over

What I'm trying to achieve might be a bit of a novelty, but maybe someone has already done this or has some great ideas. Here's the situation: I have a UITableView sitting on top of a UIImageView (which provides the background) that has a brushed metal texture. The fist row in the table is colored black. What I'd like to achieve, is the ...

phonegap / iphone / zxing

Hello all, I need to add Zxing (a qrcode reader app) to my iphone app, made in html, css & js, phonagap compiled. I have the zxing app on a side & my app (phonegap based) on the other side. If someone knows what can I do to add the zxing project (a qrcode reader function) to my phonegap based app... It will great & really appreciated ...

UITextFields losing values after UINavigationController activity

This is going to be hard to demonstrate in code, but maybe you can picture it with me. I have a view that contains two UITextFields, "title" and "descr". That same view contains two UIButtons that push another controller onto the navController to get more detail from the user about the object we're assembling and ultimately uploading to...

iPhone: Software Development And Distribution

I have a few quick questions about the iPhone software development. I did some research about the topic, but there are a few specific things I would like to ask here, because I will have to estimate the cost of the required hardware and software, before I am allowed to buy anything. I never did any Mac development nor have I ever owned a...

Calculate and display distance between userlocation and known point in Table View

Hi, I have a table view with a list of hotel, and i want put in cell.detailTextLabel.text the distance beetween userlocation and hotel. How can obtain the coordinates of userlocation? I see on web that i need to use CLLocationManager but i don't understand how and where implement in my table view. Then,to get the distance,i do a "getDist...

Is it true that I don't have to create my own NSValueTransformer subclass if my object applies to the NSCoding protocol?

i.e. lets say I want to store a custom data type in Core Data. The documentation claims that the default NSValueTransformer is an NSKeyedUnarchiveFromDataTransformer thing, so I guess if the class of the object I want to store conforms already to that NSCoding protocol, I don't need to bother about making a custom NSValueTransformer? Is ...

How to detect cordinate of UISLDER?

I am using uislider in my application.Now i want to get position of center button when i am moving slider.How it possible? ...

Core Data Cross-Store Relationship with Fetched Properties

In my Core Data model (on iPhone SDK 3.1) I have several entities that are associated with the same instance of an image. The image itself is also stored as managed object. In order to save disk space, I'm trying to create 1 db file for the images and another db file for all other objects. Reading Apple's documentation and googling for ...