ios4

how to store url image in cache memory then display in imageview in iphone

由 好久不见. 提交于 2019-12-23 12:50:06
问题 I directly open URL image in Imageview but i want to store the images in cache memory for future reference... help me to solve my problem.. Thanks in advance 回答1: You can use SDWebImage which uses image caching... This library provides a category for UIImageVIew with support for remote images coming from the web. It provides: An UIImageView category adding web image and cache management to the Cocoa Touch framework An asynchronous image downloader An asynchronous memory + disk image caching

How to parse JSON String?

由 你说的曾经没有我的故事 提交于 2019-12-23 12:15:42
问题 In my app, I have send some Request to server using POST Method and in response following JSON string printed on console : [ { "title": "American Heart Association", "link": "www.americanheart.org/" }, { "title": "EverydayHealth.com", "link": "www.everydayhealth.com" }, { "title": "GetFitSlowly.com", "link": "www.getfitslowly.com" } ] so, how to parse it, and take title and link from this string 回答1: Yes as Jhaliya posted above... Tutorial: JSON Over HTTP On The iPhone download from code here

CGContext & CGBitmapContextCreateImage errors, how to fix?

由 孤街浪徒 提交于 2019-12-23 12:13:53
问题 I've been at this for hours now, and don't even know how to debug this error. Maybe there's an SO expert who knows what's going on. - (void) prepareSubset { CGSize size = [image size]; float scale = fminf(1.0f, fmaxf(SUBSET_SIZE / cropRect.size.width, SUBSET_SIZE / cropRect.size.height)); CGPoint offset = CGPointMake(-cropRect.origin.x, -cropRect.origin.y); subsetWidth = cropRect.size.width * scale; subsetHeight = cropRect.size.height * scale; subsetBytesPerRow = ((subsetWidth + 0xf) >> 4) <<

UITextView bad content offset after animating view

由 与世无争的帅哥 提交于 2019-12-23 11:58:23
问题 I have one UITextView which is on the bottom of view. When user tap in it, I need to animate view 150px up. I'm using: - (void)textViewDidBeginEditing:(UITextView *)textView{ and - (void)textViewDidEndEditing:(UITextView *)textView{ to make this. On iOS5, it works fine. But on iOS 4.3, when view is animated, content in this UITextView goes few pixels up. Screenshot: http://cl.ly/1q3e0W2G1M000u1U3w1f Someone had similar issues? Code: - (void)textViewDidBeginEditing:(UITextView *)textView{ if(

iOS: Facebook Comments Plugin mobile keeps reloading

由 对着背影说爱祢 提交于 2019-12-23 09:59:20
问题 Recently I have been trying to integrate Facebook Social Plugins into a custom UIWebView in iOS for commenting a webpage. I have added the Like Button as well as the Comments plugin. Here is the HTML code I load into the web view: <html> <body> <div id="fb-root"></div> <script>(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/all.js#xfbml=1"; fjs.parentNode

There is no .xib file when I create a new “Empty Application” in XCode

由 烂漫一生 提交于 2019-12-23 08:49:50
问题 I am working through the Big Nerd Ranch Guide (2nd Ed) for iOS Programming using Xcode version 4.2. For the very first project I'm asked to create a new project which is a "Window-based Application" the description for which reads "This template provides a starting point for any application. It provides just an application delegate and a window". The "Window-based Application" option was not available to me in XCode 4.2 but I did see the option to create a "New Empty Application" which has

cameraOverlayView problem on iOS 4.3

由 江枫思渺然 提交于 2019-12-23 08:07:31
问题 I'm using an picker Controller with a cameraOverlayView to display an image of a product in the camera view. The product image is resized before applying on the overlay. It works fine on iOS 4.2 but on iOS 4.3 the product image is displayed full size. pickerController.sourceType = UIImagePickerControllerSourceTypeCamera; UIImageView *imgView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:produitAffiche.img_realite]] autorelease]; // Resize if(imgView.frame.size.height == 480) { /

Animating UIButton background image

由 ⅰ亾dé卋堺 提交于 2019-12-23 07:47:08
问题 Is there a way to animate a UIButton background image view with a set of images? I've managed to do so with the imageView property, but couldn't find an equivalent background property. 10x 回答1: To change a buttons backround image, or text for that matter - you need to change it for the particular UIControlState... i.e Highlighted, Selected, Disabled Use - (void)setBackgroundImage:(UIImage *)image forState:(UIControlState)state I'm not sure if you can animate them, I've never tried. If you can

How to Make Application which Store Sent and Received Messages in iPhone

由 前提是你 提交于 2019-12-23 07:36:28
问题 I am new in iPhone and I don't know much about iPhone Technology. I Searched on Stack Overflow but not got any proper solution regarding my Query. What I need is, I want to Create One Application for iPhone3 as well as iPhone4 WHICH ALLOWS USERS TO VIEW THEIR EXISTING TEXT MESSAGES(only SENT and RECEIVED) FROM "MESSAGE"[of iPhone menu] through a DIFFERENT SCREEN COLOR and BRIGHTNESS SETTING. Please give me some Suggestion/Helpful Link or any Hint Regard my query. How I start To Code My

Disable Home Button

由 泪湿孤枕 提交于 2019-12-23 07:36:23
问题 I know this has been asked previously however I would like to disable the home button for an in-house app which will be distributed internally across iPads. I have searched for a solution both on here and Google and would like to stop users from putting the app into the background. I have seen one solution which doesn't seem to work under iOS 4.0 which opens the app up again when the home button is pressed. Could I make use of any private APIs to do this seeing as this is an internal app and
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