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2014/10/15 ¤U¤È 10:08:38

iphone Programming Glossary: experimentation

IOSurfaces - Artefacts in video and unable to grab video surfaces

http://stackoverflow.com/questions/14135215/iosurfaces-artefacts-in-video-and-unable-to-grab-video-surfaces

do post them here. iphone objective c ios ios4 iphone privateapi share improve this question I did a bit of experimentation and concluded that the screen surface from which the content is copied is changing even before the transfer of contents..

What is mach_absolute_time based on on iPhone

http://stackoverflow.com/questions/1450737/what-is-mach-absolute-time-based-on-on-iphone

improve this question Had some trouble with this myself. There isn't a lot of good documentation so I went with experimentation. Here's what I was able to determine mach_absolute_time depends on the processor of the device. It returns ticks since the..

How to prevent a globally overridden “new” operator from being linked in from external library

http://stackoverflow.com/questions/1879400/how-to-prevent-a-globally-overridden-new-operator-from-being-linked-in-from-ex

any issues. However no amount of shuffling the linking order of the libraries seems to fix the problem nor does any experimentation with the various linking flags. Is there some way to tell XCode to tell the linker to have libGreen's use of the new operator..

How to implement pedometer in iphone?

http://stackoverflow.com/questions/1984003/how-to-implement-pedometer-in-iphone

Slicing up a UIImage on iPhone

http://stackoverflow.com/questions/248667/slicing-up-a-uiimage-on-iphone

part of the image. iphone objective c cocoa touch image manipulation share improve this question After some more experimentation I found the following solution I still don't know why it didn't work as originally written though. But anyway the slicing..

How To Rotate An MPMoviePlayerController

http://stackoverflow.com/questions/3019200/how-to-rotate-an-mpmovieplayercontroller

or not is another issue but I think they're unlikely to reject a video app that plays video in landscape. After some experimentation the following seems to work @interface MyMovieViewController MPMoviePlayerViewController @end @implementation MyMovieViewController..

MKMapView setRegion “snaps” to predefined zoom levels?

http://stackoverflow.com/questions/3612007/mkmapview-setregion-snaps-to-predefined-zoom-levels

iphone mapkit mkmapview share improve this question Yes it snaps to discrete levels. I've done quite a bit of experimentation and it seems to like multiples of 2.68220906e 6 degrees of longitude per pixel. So if your map fills the whole width of..

Hide StatusBar from MPMoviePlayerController

http://stackoverflow.com/questions/3653236/hide-statusbar-from-mpmovieplayercontroller

statusbar share improve this question Unfortunately after running into this very problem through research and much experimentation I've determined that it is pretty much impossible to keep the iOS status bar hidden in full screen mode. No matter what..

Layered UIViewControllers overlaps status bar

http://stackoverflow.com/questions/3767066/layered-uiviewcontrollers-overlaps-status-bar

source and running it I found that the tutorial had the same problem it uses a UITableViewController . Further experimentation revealed that it works if the content of the custom controller is a UILabelView instead. iphone cocoa touch uiviewcontroller..

What is the class NSCFNumber in iOS 4.1?

http://stackoverflow.com/questions/4357063/what-is-the-class-nscfnumber-in-ios-4-1

to return information about the picture. One of the keys in that dictionary is @ Orientation From my experimentation Portrait and Upside down are 6 and 8 respectively and the landscapes are 1 and 3. Look at this code void imagePickerController..

Coordinates all wrong on iPhone 3G? It could be your compiler

http://stackoverflow.com/questions/8391307/coordinates-all-wrong-on-iphone-3g-it-could-be-your-compiler

Compare with how this is supposed to look ignore the difference in colours pink is for girls blue for boys After much experimentation I send him a rebuilt version of the previous version which worked OK for him and it still doesn't work. So in the end it..

AVAudioPlayer currentTime problem

http://stackoverflow.com/questions/882753/avaudioplayer-currenttime-problem

question I also struggled to get audio skipping working properly with 'AVAudioPlayer setCurrentTime ` After alot of experimentation i've found a sequence that works reliably on the simulator and the device tested on OS3.1 Skips to an audio position in..