2014/10/15 下午 10:10:06

iphone Programming Glossary: holding

http://stackoverflow.com/questions/1080043/how-to-disable-multitouch

has several buttons which trigger different events. The user should NOT be able to hold down several buttons. Anyhow holding down several buttons crashes the app. And so I'm trying to disable multi touch in my app. I've unchecked 'Multiple Touch'..

How to get the RGB values for a pixel on an image on the iphone

http://stackoverflow.com/questions/144250/how-to-get-the-rgb-values-for-a-pixel-on-an-image-on-the-iphone

with corresponding synthesized properties Reference to Quartz CGImage for receiver self CFDataRef bitmapData Buffer holding raw pixel data copied from Quartz CGImage held in receiver self UInt8 pixelByteData A pointer to the first pixel element..

How to detect iPhone movement in space using accelerometer?

http://stackoverflow.com/questions/2674717/how-to-detect-iphone-movement-in-space-using-accelerometer

what kind of shape you made with your iPhone using accelerometer. As an example if you draw a circle with your hand holding the iPhone the app would be able to redraw it on the screen. This could also work with squares or even more complicated..

Transitioning to landscape rotation within a uinavigationcontroller

http://stackoverflow.com/questions/2922919/transitioning-to-landscape-rotation-within-a-uinavigationcontroller

when transitioning from movie info screen to the actual movie. note i am not interested in what rotation the user is holding the device iphone objective c cocoa touch uinavigationcontroller share improve this question What appears in YouTube..

Core Data: Error, “Can't Merge Models With Two Different Entities Named 'foo' ”

http://stackoverflow.com/questions/3205783/core-data-error-cant-merge-models-with-two-different-entities-named-foo

OK that I understand. Old version of the database exists on the device. So I try to kill the old version by press holding the application's icon until it starts wiggling and then tap its X . The iPad asks me if I want to delete the application..

Using the apple FFT and accelerate Framework

http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework

way through the process. so in the beginning we want to fill it with n real numbers. after the FFT it is going to be holding n 2 complex numbers. we then throw that into the inverse transform and hopefully get out our original n real numbers. now..

how to detect (iphone sdk) if a video file was recorded in portrait orientation, or landscape

http://stackoverflow.com/questions/4627940/how-to-detect-iphone-sdk-if-a-video-file-was-recorded-in-portrait-orientation

believe me . Where within the file and or how do I access the information that tells me it was actually recorded while holding the phone in portrait orientation I have also tried this given the url of the asset AVURLAsset avAsset AVURLAsset alloc.. QuickTime knows and displays portrait videos vertically and the phone knows by rotating a portrait video if you are holding the phone in landscape orientation on playback and correctly displaying it if holding it in portrait. BTW I can't use ffmpeg.. a portrait video if you are holding the phone in landscape orientation on playback and correctly displaying it if holding it in portrait. BTW I can't use ffmpeg can't live with the license restrictions . Is there an iPhone SDK native way to do..

Repeating NSTimer, weak reference, owning reference or iVar?

http://stackoverflow.com/questions/4945028/repeating-nstimer-weak-reference-owning-reference-or-ivar

invalidate self setWalkTimer nil ... ... dealloc method super dealloc . 3 Use an iVar and rely on the runLoop holding i.e. retaining the timer NSTimer walkTimer NSTimer walkTimer NSTimer scheduledTimerWithTimeInterval 1 target self ..

CGContextDrawImage draws image upside down when passed UIImage.CGImage

http://stackoverflow.com/questions/506622/cgcontextdrawimage-draws-image-upside-down-when-passed-uiimage-cgimage

with the correct orientation into your current image context I'm pretty sure this has something to do with the UIImage holding onto knowledge of the orientation while the CGContextDrawImage method gets the underlying raw image data with no understanding..

iOS UIImagePickerController result image orientation after upload

http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload

@ image jpg forKey @ imageFile request startAsynchronous the problem when i take a picture with the iphone while holding it landscape the image gets uploaded to the server and it viewed like you would expect. when taking a picture holding the.. holding it landscape the image gets uploaded to the server and it viewed like you would expect. when taking a picture holding the phone in portrait the image is uploaded and viewed as it had been rotated 90 degrees. my application is set to only..

Where are the best explanations of memory management for iPhone? [closed]

http://stackoverflow.com/questions/710288/where-are-the-best-explanations-of-memory-management-for-iphone

new retain or copy you must also release . Also anything you DON'T alloc or copy you should retain if you plan on holding on to it beyond the current message loop or you risk it being autoreleased and becoming an invalid reference . share improve..

Why is there an frame rectangle and an bounds rectangle in an UIView?

http://stackoverflow.com/questions/749558/why-is-there-an-frame-rectangle-and-an-bounds-rectangle-in-an-uiview

And how do they interact with eachother Does anyone have a good explanation The one from the apple docs with the kid holding the fruit is not pretty good for understanding. iphone share improve this question Here's the cheatsheet frame is where..

iPhone UIWebView local resources using Javascript and handling onorientationChange

http://stackoverflow.com/questions/843820/iphone-uiwebview-local-resources-using-javascript-and-handling-onorientationchan

onorientationchange updateOrientation div id page_wrapper h1 Engage Interactive h1 div id content_left p You are now holding your phone to the left p div div id content_right p You are now holding your phone to the right p div div id content_normal.. h1 div id content_left p You are now holding your phone to the left p div div id content_right p You are now holding your phone to the right p div div id content_normal p You are now holding your phone upright p div div id content_flipped.. p div div id content_right p You are now holding your phone to the right p div div id content_normal p You are now holding your phone upright p div div id content_flipped p This doesn't work yet but there is a chance apple will enable it at some..

How can I reset the NSUserDefaults data in the iPhone simulator?

http://stackoverflow.com/questions/898498/how-can-i-reset-the-nsuserdefaults-data-in-the-iphone-simulator

way is to remove the app from the simulator just like you'd remove it from a real phone by tapping clicking and holding until the icons start vibrating. That removes all app data and the next time you install from Xcode it's like the first..