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  • Will the next iPhone Simulator be able to simulate the high resolution of iPhone 4?

    - by dontWatchMyProfile
    As a follow-up to this question, the next one is: Will we be able to simulate our interfaces how they look on the new high resolution display, even without owning an iPhone 4? I guess that there is a formula that we can use to calculate the exact needed distance between our monitors and our eyes, to achieve the exact same visual effect of the Retina Display. This would help a lot to get things right. The first thing we need is an high resolution iPhone Simulator. I can't get any sleep until I know.

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  • Dynamic View Creation in Iphone?

    - by adusum
    Hi can any one please tell me how to create Dynamic views in iphone. And I want to know like what is difference between custom views and dynamic views in iphone. Acutally i went throught google but i didn't find any proper answer. And I have one more question is like can we create all the views manually in the coding iteslf like the one we create using a Interface bulder and save it as a .nib. how can it be done?can any one please explain me this. Thanks,

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  • iPhone SDK: Data Synchronization

    - by buzzappsoftware
    I am looking for an overview of data synchronization techniques available on the iPhone platform. We need the ability to be able to sync a subset of content from a server to a local database residing on the iPhone. On other projects I have worked on, the data synchronization was handled by the database. Is that available in SQLite? If not, any suggestions on techniques? Rolling our own would not be my first choice. Thanks in advance.

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  • Installing 2 versions of app on one device

    - by dl
    I've got two branches of an iPhone app going. I would like to load them both onto my provisioned iPad at the same time. The iPad sees them as the same app though and writes over whichever one is currently installed. Does anyone have good system for loading two versions concurrently. Thanks!

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  • Best way of obfuscating / encrypting form data on the iPhone

    - by cannyboy
    I want to create an app which holds sensitive information (imagine it's bank account details, thought it's not). The user enters this information on a form the first time the app starts up. I want this info to be saved, and available, any time the user uses the app (without having to enter a password). However, if the iPhone has a password lock on it, and is stolen, I don't want the data to be easily accessible from the file system. What is the best way of encrypting or obfuscating the data? There is not a lot of data, just a dozen NSStrings from the UITextFields on the form. I'm aware there are encryption export restrictions on the iPhone for non-US developers (I am in UK), so I would prefer to avoid going jumping through any of Apple's app submission hoops to get it on the store.

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  • UITextField for Phone Number

    Hello everyone, I was wondering how I can format the textField that I'm using for a phone number (ie like the "Add New Contact" page on the iPhone. When I enter in a new mobile phone, ex. 1236890987 it formats it as (123) 689-0987.) I already have the keyboard set as the number pad. Thanks!

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  • Problems when trying to submit iphone app

    - by ryug
    I'm a fairly new developer. When I try to submit my iphone app with xcode, I've got error as follows; Code Sign error: The identity 'iPhone Distribution' doesn't match any valid, non-expired certificate/private key pair in the default keychain After searching, I found out that I have to create a Distribution Provisioning Profile. However, my distribution provisioning profile doesn't work, even though my Development Provisioning Profile works perfectly. Could someone please help me with this problem? I'm stuck all day... and please forgive me that my English is not great. Thank you in advance.

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  • Recording app sound in iphone

    - by user292127
    Hi, I am developing a music mixing app in iphone. It'll mix the music and user can compose a new music from it. I need to record this final music. I had used AVAudiorecorder to record this one. But no change. It can record sound from microphone but I need to record app sound. I had used audio queue call back function to record the audio. But when app runs I can hear the audio from my app and I couldn't hear any sound from recorded audio. There is no problem with recording since I can hear the audio recorded through microphone. But I need an offline recorder which can record the audio output of iphone, rather than the audio input through microphone. I need a recorder which can record audio using ipod touch (no microphone). Any help?

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  • iPhone App/Java Server Struct Data Issue over WiFi

    - by adimitri
    I currently have an iPhone app that communicates with a C++ server running on a computer, over WiFi. This app is sending its data (x,y coordinates) in a c-struct to the server. For further development, we would like the iPhone application to communicate directly with a java server, however the major issue is that java does not have the ability to emulate or use a c-struct. What would be the best way to send data (x,y coordinates) between the two devices? I can already establish a connection between the two devices. More specifically how I would receive the data and process it on the Java end. Thanks for your help, Alex

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  • Search within HTML files

    - by SKk
    Hi Forum, In my iPhone project,I have number of HTML files having different textual and image contents within each file. I need to implement search facility which would return results (HTML file names) having matched keyword. Can anybody have any clue, how can I achieve this? Thanks

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  • iPhone:Can binaries developed in Xcode 3.1.3 be deployable on iPhone 3.1.3 device?

    - by user187532
    Hi, Sorry to ask you such a basic question. I am facing some problem here, so that is why asking this question. I have Xcode 3.1.3 and developed an application. I am trying to install this binary with proper provisional profile onto iPhone 3G 3.1.3 device on another windows computer. But i'm unable to install on the device through iTunes. Can binaries developed using Xcode 3.1.3 be able to install on iPhone 3.1.3 version devices right? Please advise. Thanks.

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  • WhatsApp - writing a clone (iphone, android, wp7)

    - by Martin
    I am trying to create a instant messaging app very much like whatsapp I suppose. My resources I have available to me are Server development in C# (REST Service, dedicated server app etc) And currently an android development platform using eclipse (iphone, wp7 to follow later). I have done some development in Android before but I don't have any idea where to start an application like this. My guess would be it would work with UDP / TCP or similar ? I currently have a shared server for an asp.net website but I presume this wouldn't be ideal, I could essential setup a web service on the server and get a client to publish his messages there but then this would mean that the receivers would have to POLL (PULL) every 5 minutes or so - so I guess this wouldn't be real time Do I need to use UDP here ? And I presume platforms like Iphone, Android and WP7 will not have any issues sending msgs by UDP - if that is how its done. I look forward to any help or guidance.

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  • Testing IPhone code on Windows

    - by steve
    I'm picking up a new Dell laptop. My primary machine is a IMac. I will most likely have to write some IPhone projects for someone in the future. While I do most of my work on the IMac there would be maybe 25% of the time where I work from my laptop. Can anyone tell me if I use objective C / IPhone SDK's if there is a generic objective C compiler I can use to see if my code would in theroy work? Not looking to do hackintosh or anything like that. My other option is to just get a discounted mac mini (Think this is most likely) as well as the Dell. Thanks for any advice

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  • How can I tell the size of my app during development?

    - by Newbyman
    My programming decissions are directly related to how much room I have left, or worse perhaps how much I need to shave off in order to get up the 10mb limit. I have read that Apple has quietly increased the 3G & Edge download limit from 10mb up to 20mb in preparation for the iPad in April. Either way, my real question is how can I gauge a rough estimate of how large my app will end while I'm still in the development phase? Is the file size of my development folder roughly 1 to 1 ratio? Is the compressed file size of my development a better approximation? My .xcodeproj file is only a couple hundred kB, but the size of my folder is 11.8 MB. I have a .sqlite database, less than 20 small png images and a Settings.Bundle. The rest are unknown Xcode files related to build, build for iphoneOS, simulator etc.... My source code is rather large with around 1000 lines in most of the major controllers, all in all around 48 .h&.m files. But my classes folder inside my development folder is less than 800kb. Digging around inside my Build file, there is lots of iphone simulator files and debugging files which I don't think will contribute to the final product. The Application file states that it is around 2.3 MB. However, this is such a large difference from the 11.8 MB, I have to wonder if this is just another piece of the equation. I have the app on the my device, I'm in the testing phase. Therefore, I though that I would try to see how large the working version was on the device by checking in iTunes, however my development app is visible on the right-hand the application's iphone screen, but no information about the app most importantly its size. I also checked in Organizer, I used the lower portion of the screen-(Applications), found my application and selected the drop down arrow which gave my "Application Data" and a download arrow button to the right to save a file on my desktop, named with the unique AppleID. Inside the folder it had three folders-(documents, library, tmp) the documents had a copy of my .sqlite database, the library a few more files but not anything obvious or of size, and the tmp was empty. All in all the entire folder was only 164kb-which tells me that this is not the right place to find the size either. I understand that the size is considered to be the size of my binary plus all the additional files and images that I have add. Does anyone have a effective way of guaging how large the binary is or the relating the development folder size to what the final App Store application size will end up. I know that questions have been posted with similar aspects, but I could not find any answered post that really described...what files, or how to determine size specifically. I know that this question looks like a book, but I just wanted to be specific in conveying exactly what I'm looking for and the attempts thus far. *Note all files are unzipped and still in regular working Xcode order of a single app with no brought-in builds or referenced projects. I'm sure that this is straight forward, I just don't know where to look?

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  • optimizing iPhone OpenGL ES fill rate

    - by NateS
    I have an Open GL ES game on the iPhone. My framerate is pretty sucky, ~20fps. Using the Xcode OpenGL ES performance tool on an iPhone 3G, it shows: Renderer Utilization: 95% to 99% Tiler Utilization: ~27% I am drawing a lot of pretty large images with a lot of blending. If I reduce the number of images drawn, framerates go from ~20 to ~40, though the performance tool results stay about the same (renderer still maxed). I think I'm being limited by the fill rate of the iPhone 3G, but I'm not sure. My questions are: How can I determine with more granularity where the bottleneck is? That is my biggest problem, I just don't know what is taking all the time. If it is fillrate, is there anything I do to improve it besides just drawing less? I am using texture atlases. I have tried to minimize image binds, though it isn't always possible (drawing order, not everything fits on one 1024x1024 texture, etc). Every frame I do 10 image binds. This seem pretty reasonable, but I could be mistaken. I'm using vertex arrays and glDrawArrays. I don't really have a lot of geometry. I can try to be more precise if needed. Each image is 2 triangles and I try to batch things were possible, though often (maybe half the time) images are drawn with individual glDrawArrays calls. Besides the images, I have ~60 triangles worth of geometry being rendered in ~6 glDrawArrays calls. I often glTranslate before calling glDrawArrays. Would it improve the framerate to switch to VBOs? I don't think it is a huge amount of geometry, but maybe it is faster for other reasons? Are there certain things to watch out for that could reduce performance? Eg, should I avoid glTranslate, glColor4g, etc? I'm using glScissor in a 3 places per frame. Each use consists of 2 glScissor calls, one to set it up, and one to reset it to what it was. I don't know if there is much of a performance impact here. If I used PVRTC would it be able to render faster? Currently all my images are GL_RGBA. I don't have memory issues. Here is a rough idea of what I'm drawing, in this order: 1) Switch to perspective matrix. 2) Draw a full screen background image 3) Draw a full screen image with translucency (this one has a scrolling texture). 4) Draw a few sprites. 5) Switch to ortho matrix. 6) Draw a few sprites. 7) Switch to perspective matrix. 8) Draw sprites and some other textured geometry. 9) Switch to ortho matrix. 10) Draw a few sprites (eg, game HUD). Steps 1-6 draw a bunch of background stuff. 8 draws most of the game content. 10 draws the HUD. As you can see, there are many layers, some of them full screen and some of the sprites are pretty large (1/4 of the screen). The layers use translucency, so I have to draw them in back-to-front order. This is further complicated by needing to draw various layers in ortho and others in perspective. I will gladly provide additional information if reqested. Thanks in advance for any performance tips or general advice on my problem!

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