iphone-4

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iPhone 4 iOS5 Core Plot and ARC error:"The current deployment target does not support weak references"

I\'ve converted my project to iOS 5 and enabled ARC开发者_运维知识库. Now I need to integrate core plot with the project. When I try to instantiate a sample controller included with the Core Plot, I g[详细]

2023-04-12 17:58 分类：问答
iPhone 4 detect distance using camera's focusing mechanism

If I remember correctly, modern cameras send out an ultrasound wave and measure time that it takes for it to bounce back in order to estimate the focusing distance. Kinda like bats. Does iPhone\'s bac[详细]

2023-04-12 17:17 分类：问答
Facebook window not showing correctly & cancel button is invisible in iphone

I am integrating facebook login functionality in my iphone application. When I click on \"Login with Facebook\" button then facebook window opens which is shown below[详细]

2023-04-12 16:25 分类：问答
colorWithPatternImage creates black grids in iphone 4

I have UIView *topPart = [[UIView alloc] initWithFrame:CGRectMake(9, 0, 302, 318)]; topPart.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@\"pattern.png\"]];[详细]

2023-04-10 05:27 分类：问答
iOS camera, torch intensity control

is there a way to control the iPhone 4 torch intensity. I did a lot of looking around and the documentation says there are only 3 states : off, on, auto. Any ki开发者_运维技巧nd of workaround is wel[详细]

2023-04-09 13:49 分类：问答
How could I create a shortcut on desktop in iOS through an app

What do I mean is that I want to use the app to create a shortcut with icon on the desktop which will allow user to speed access some functions of this app.[详细]

2023-04-07 22:51 分类：问答
Automatically take a Picture

I have tried to take a picture and save it to the photo library automatically with UIImagePicker and AVFoundation, but I couldn\'t make it work.[详细]

2023-04-07 18:16 分类：问答
How can I change iphone simulator hardware configuration?

I want to change simulator to sho开发者_Go百科w retina display effect. I try to find where I can change the hardware configuration.[详细]

2023-04-06 01:46 分类：问答
Retina Display coordinate is wrong

I try to display image to the Screen at Retina iPhone. So I used this code. #define ScreenWidth 960 #define ScreenHeight 640[详细]

2023-04-05 08:25 分类：问答
What can be the iPhone 4 (retina) screen's dimensions

I have a PNG开发者_开发技巧 picture which I should use in my iPhone application, but first of all, I have to give it the dimensions of an iPhone 4 retina screen. Does any one know what could it be its[详细]

2023-04-03 07:58 分类：问答