ios6

问题 I have recently started using UICollectionView, and am a bit confused about the UICollectionViewFlowLayout. It would seem that the frames for each cell in the collection view are calculated with equal space between each item. This causes the frames of some of the cells to have fractional positions, which will cause blurry labels and misaligned image pixels and so on. I am surprised to find that there are no questions about this on stack overflow though, which makes me think I am doing

问题 I have recently started using UICollectionView, and am a bit confused about the UICollectionViewFlowLayout. It would seem that the frames for each cell in the collection view are calculated with equal space between each item. This causes the frames of some of the cells to have fractional positions, which will cause blurry labels and misaligned image pixels and so on. I am surprised to find that there are no questions about this on stack overflow though, which makes me think I am doing

问题 the for loop looks like this , which i have written in view did load, so it takes more time to load this page. for (int i=3; i<[[[[dataDict objectForKey:@"rss"]objectForKey:@"channel"]objectForKey:@"item"]count]; i++) { if (i%3==0) { x=0; y++; } view=[[UIView alloc]initWithFrame:CGRectMake((x*250)+5, (y*404)+6, 244, 400)]; [view setBackgroundColor:[UIColor whiteColor]]; view.layer.borderColor=[[UIColor whiteColor]CGColor]; view.layer.borderWidth=1.0; view.layer.cornerRadius = 5; view.layer

问题 I got these values from server: <gps_n>34.22.123</gps_n> <gps_w>81.59.345</gps_w> I would like to convert these values to latitude/longitude in Objective C. Would you please give me a guide to do this? Thanks 回答1: The formula for both lat/long (n/w) is: Degrees+(minutes/60)+(seconds/3600) From this page: http://webmaster10.com/ldr/lat-long-conversion.html 回答2: The example you have given, already are latitude/longitude coordinates. There are many such lat,lon formats, what you want are lat

问题 This question already has answers here : How do I know whether my iPhone/iPad is connected to 2G or 3G? [duplicate] (3 answers) Closed 6 years ago . I want to check if the device has a 2G or 3G connection. I used Reachability class for network connection check. 回答1: In iOS 7 Apple provided a new way to get it. Please read this link. The "Know your Radio" section. The basic idea is to use the new currentRadioAccessTechnology added to the CTTelephonyNetworkInfo class. If you want to get

问题 What is the iOS 6.0 user agent string? Previous user-agent strings: iOS 5.1 - What is the iOS 5.1 user agent string? iOS 5.0 - What is the iOS 5.0 user agent string? iOS 4.0 - What is the iPhone 4 user-agent? 回答1: iPhone: Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 iPad: Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 For a

问题 What is the iOS 6.0 user agent string? Previous user-agent strings: iOS 5.1 - What is the iOS 5.1 user agent string? iOS 5.0 - What is the iOS 5.0 user agent string? iOS 4.0 - What is the iPhone 4 user-agent? 回答1: iPhone: Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 iPad: Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 For a

问题 What is the iOS 6.0 user agent string? Previous user-agent strings: iOS 5.1 - What is the iOS 5.1 user agent string? iOS 5.0 - What is the iOS 5.0 user agent string? iOS 4.0 - What is the iPhone 4 user-agent? 回答1: iPhone: Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 iPad: Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 For a

问题 What is the iOS 6.0 user agent string? Previous user-agent strings: iOS 5.1 - What is the iOS 5.1 user agent string? iOS 5.0 - What is the iOS 5.0 user agent string? iOS 4.0 - What is the iPhone 4 user-agent? 回答1: iPhone: Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 iPad: Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 For a

问题 According to this rather old, but still current page on Apple's Developer Site (the public portion), there are supposed to be APIs within iOS 6 that allow for access to "real-time video stabilization". Sadly, I cannot find any API documents that seem to support this. Could someone please point me in the right direction? 回答1: Well, I finally found it. Link to Apple API Document Discussion The default value of this property is NO. If the supportsVideoStabilization property contains the value