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  • How do I change the background image of my iPhone app?

    - by alJaree
    Hello I have looked around and found some code which so called chooses an image from an array of image objects, but cant find an explanation. I would like to make my app have a background image and the user can select next and previous buttons to scroll through some full screen images, setting them as the background image as they scroll. I know how to do this in java, but cant seem to do it for this app. How or what code is linked to a next button to grab the next image in the array and reverse for the back button? Then that needs to be displayed obviously. I have used a layered architecture with a MVC style approach but cant seem to put it together with Objective-C. Would the buttons call the appropriate methods of the so called delegates, which the delegates handle fetching and returning the Images? Would the buttons use the returned images and actually handle the redrawing? I would really appreciate the help. Regards Jarryd

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  • How can I install an application on iPhone automatically?

    - by D33pN16h7
    Hello, I need a way to install a distribuible application without user intervention, of course I currently have a distribution profile installed on my device (I can install or uninstall the application by means of iTunes or iPCU), the problem remain on the side of automation "no user intervention is required", basically I need to develop a software (maybe hack iTunesMobileDevice.dll) that install the application when a valid device (the one with a valid distribution profile) is connected to one machine (application server), so any ideas??.... Thanks in advance!

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  • My iPhone app has been downloaded by people all over the world, but has no use to anyone outside of

    - by Rob Lourens
    I wrote a basic free app for the bus schedule in my American university's town which was accepted into the app store on Saturday. Since then the app has been downloaded (assuming I'm reading the iTunes Connect reports right) 18 times in Canada, 6 times in Germany, and many times from other places all over the world. I can't figure out why all these people are downloading it... are there services automatically downloading free apps for some purpose that I can't even imagine? Should I put a price on it ASAP?

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  • How to get a 3D picture in an iphone app?

    - by wolverine
    In an application, i saw that they used to display pictures of vehicles. But what was amazing was when we touch and swipe in that picture, it rotates in 3d way left and right. And from the front view we can rotate and get to see its back view also. It is a very good feature and i was trying to replicate it. But couldnt get an idea of how and where to start. My doubts are Whats the actual format of the thing, it surely isn't a picture. How do they get to rotate it? Could someone give me an idea where i should start or where I should look upon?

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  • (iphone) am I creating a leak when creating a new image from an image?

    - by Eugene
    Hi, I have following code as UIImage+Scale.h category. -(UIImage*)scaleToSize:(CGSize)size { UIGraphicsBeginImageContext(size); [self drawInRect:CGRectMake(0, 0, size.width, size.height)]; // is this scaledImage auto-released? UIImage* scaledImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return scaledImage; } I use image obtained as above and use it as following. UIImage* image = [[UIImage alloc] initWithData: myData]; image = [image scaleToSize: size]; <- wouldn't this code create a leak since image(before scaling) is lost somewhere? i guess above codes work fine if image was first created with auto-release. But if image was created using 'alloc', it would create a leak in my short knowledge. How should I change scaleToSize: to guard against it? Thank you

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  • How do I display and calculate numbers from a database on iPhone?

    - by JoshD
    I am new to designing apps and have a basic understand of Ob-C and how everything works. What I would like to do is have two tabs, one is a home screen that displays numbers and percentages that are entered on the second tab. The user will be able to store that information and refer back to it and update it. What is the best way to complete that math from the database to the "home screen"? Any tutorials, advice is great! Thanks.

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  • Is it possible to make the iPhone keyboard invisible / remove it without resigning first responder?

    - by Alex Gosselin
    I am looking for a way to show my own input view (a UITableView) to enter certain keywords in a UITextView faster than typing them, and also be able to type into this text view the normal way. My solution has a button that causes the keyboard to disappear, revealing the table view underneath it. Problem is I can't figure out how to make the keyboard go away without resigning first responder, and losing the cursor. Has anyone accomplished this before? Thanks for any help.

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  • How to draw multiple line text to uiimageview iphone?

    - by Hu?nh Phong
    I have UITextView for text, after user press DONE, I convert text to UIImageView and show it. It works with one line of text very good, and Screenshot 1 . But if user types two lines, or more: the result is still one line??? Screenshot 2 I want to display two or more lines in UIimageView Can anybody help me! Thank you very much! Here is my code: -(UIImage *)convertTextToImage : (ObjectText *) objT; { UIGraphicsBeginImageContext(CGSizeMake(([objT.content sizeWithFont:objT.font].width+10), ([objT.content sizeWithFont:objT.font].height+10))); [[objT getcolor] set]; [objT.content drawAtPoint:CGPointMake(5, 5) withFont:objT.font]; UIImage *result = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return result; }

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  • (iphone) can i give different intervals between images when animating?

    - by Eugene
    Hi, I'm animating several image as follows. UIImageView* animationView = [[UIImageView alloc] initWithFrame: self.animationViewContainer.bounds]; animationView.animationImages = animationArray; animationView.animationDuration = 0.5; animationView.animationRepeatCount = 5; [animationView startAnimating]; What I'd like to do is, controlling duration between animationImages. For instance, show image1 for 0.3 sec image2 for 0.5 sec.. There must be some way to do this, but hard to find an answer. I've asked the same question here before, but wording of the question wasn't so clear. Thank you

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  • iPhone / ios development - best way to check if password is secure enough?

    - by Pranoy C
    what is the best way to check the strength of a password in iOS development? I came across this post: What is the best way to check the strength of a password? but this is not iOS specific. My question is - Does Apple or third party libraries provide any libraries by default which I can use to check if the user entered a secure password? If not, then as the above post says, is using regular expressions the best way? Does Apple have any requirements which our app needs to implement to make sure user has a secure password? I am planning on using the keychain to store the password.

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