2014/10/15 下午 10:03:35

iphone Programming Glossary: amounts

iOS Detecting connection speed or type [duplicate]

http://stackoverflow.com/questions/10719073/ios-detecting-connection-speed-or-type

iPhone development: pointer being freed was not allocated

http://stackoverflow.com/questions/1424210/iphone-development-pointer-being-freed-was-not-allocated

How to preserve iPhone application state before terminating the application?

http://stackoverflow.com/questions/1811696/how-to-preserve-iphone-application-state-before-terminating-the-application

Use NSUserDefaults to store state information. One caveat you shouldn't use NSUserDefaults for storing large amounts of data as this will slow down your application's launch time since the values are loaded on launch . More specific to your..

sqlite Indexing Performance Advice

http://stackoverflow.com/questions/1862771/sqlite-indexing-performance-advice

fields there are things you can do to improve search performance. Apple recommend using a derived properties. This amounts to maintaining a normalised version of your property in your model that is used for searching. The derived property should..

What is the best way to enter numeric values with decimal points?

http://stackoverflow.com/questions/276382/what-is-the-best-way-to-enter-numeric-values-with-decimal-points

of 0. So when dealing with yen input there is no decimal separator and thus no need to even worry about fractional amounts. This approach to the problem allows you to use the stock numeric input keypad provided by Apple without the headaches of..

CGContextDrawPDFPage taking up large amounts of memory

http://stackoverflow.com/questions/2975240/cgcontextdrawpdfpage-taking-up-large-amounts-of-memory

taking up large amounts of memory I have a PDF file that I want to draw in outline form. I want to draw the first several pages on the document.. clicked the main display will navigate to the clicked page. However CGContextDrawPDFPage seems to be using copious amounts of memory when attempting to draw the page. Even though the image is only supposed to be around 100px tall the application.. g m_page CGContextRestoreGState g Is there a better way to draw this image that doesn't take up huge amounts of memory iphone cocoa touch pdf core graphics share improve this question Try to add CGContextSetInterpolationQuality..

Using the apple FFT and accelerate Framework

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

for this one... in order to optimise different routines return values that need to be scaled by different amounts in order to be correct as per the math In this case... scale float 1.0 2 n vDSP_vsmul A.realp 1 scale A.realp 1 nOver2 vDSP_vsmul..

Iphone - when to calculate heightForRowAtIndexPath for a tableview when each cell height is dynamic?

http://stackoverflow.com/questions/4823197/iphone-when-to-calculate-heightforrowatindexpath-for-a-tableview-when-each-cel

themselves . But usually this is easy to do. For example if your row heights vary in size because they hold varying amounts of text you can use one of the sizeWithFont methods on the relevant string to do the calculations. This is quicker than..

Creating a JSON Store For iPhone

http://stackoverflow.com/questions/5237943/creating-a-json-store-for-iphone

between themselves and the cards have no behaviors. SQL or other procedural DBs are very good at processing large amounts of low complexity information. If the data is simple then SQL can handle even highly volatile data efficiently. If the UI..

how do I calculate heightForRowAtIndexPath when the cell is not even constructed yet?

http://stackoverflow.com/questions/5294356/how-do-i-calculate-heightforrowatindexpath-when-the-cell-is-not-even-constructed

create the scroll bars and set it up on a scroll view etc. If your row heights vary in size because they hold varying amounts of text you can use one of the sizeWithFont methods on the relevant string to do the calculations. This is quicker than..

iOS store just a little bit of data

http://stackoverflow.com/questions/7417552/ios-store-just-a-little-bit-of-data

store just a little bit of data I was wondering if there is a way to store small amounts of data without going to a full blown core data API. I just need to store 6 'double' values somewhere... What's the best..

How to copy songs from iPod Library to app and play with AVAudioPlayer?

http://stackoverflow.com/questions/7472141/how-to-copy-songs-from-ipod-library-to-app-and-play-with-avaudioplayer

d written totalBuff CFRelease blockBuffer CFRelease ref fileHandle writeData data NSLog @ writting d frame for amounts of buffers d data.length audioBufferList.mNumberBuffers data release NSLog @ total buffs d totalBuff fclose f fileHandle..

iOS Stream Audio from one iOS Device to Another

http://stackoverflow.com/questions/8357514/ios-stream-audio-from-one-ios-device-to-another

with in memory buffers rather than writing out the audio to a temporary file. Note that if you're dealing with large amounts of data on an iOS device you'll have no choice but to hold the bulk of that on disk. Especially if the user can replay the..

Localize Currency for iPhone

http://stackoverflow.com/questions/856019/localize-currency-for-iphone

Currency for iPhone I would like my iPhone app to allow the input display and storage of currency amounts using the appropriate symbol 瞼 etc for the user. Would NSNumberFormatter do everything I need What happens when a user switches.. for the user. Would NSNumberFormatter do everything I need What happens when a user switches their locale and these amounts dollars yen etc. are stored as NSDecimalNumbers. I assume to be safe it's necessary to somehow capture the locale at the..

How simplify iPhone localization?

http://stackoverflow.com/questions/898308/how-simplify-iphone-localization

bindings and iPhone NIBs are generally simpler anyway. You can also use text injection for NIBs that have very small amounts of text like a title . Text injection is a fancy way of saying use an outlet for the label and set it to the localized text..