2014/10/15 下午 10:05:28

iphone Programming Glossary: constrained

Use autorelease before adding objects to a collection?

http://stackoverflow.com/questions/1147785/use-autorelease-before-adding-objects-to-a-collection

with the array providing that nothing else has come along and retained it in the meantime . If I'm in a memory constrained environment say the iPhone where I need to be careful about how much memory I'm using I'll use the latter method just so..

How to set viewport meta for iPhone that handles rotation properly?

http://stackoverflow.com/questions/1230019/how-to-set-viewport-meta-for-iphone-that-handles-rotation-properly

nicely on the iPhone. It works great until the user rotates the device into landscape mode where the display remains constrained to 320px. Is there a simple way to specify a viewport that changes in response to the user changing the device orientation..

Is it better to autorelease or release right after?

http://stackoverflow.com/questions/1283324/is-it-better-to-autorelease-or-release-right-after

class of tempObject this may or may not be a major problem on the desktop but it most certainly would be on the memory constrained iPhone. Thus you should really use release over autorelease if you're allocating many temporary objects. But for many most..

How to calculate the size of a UIFont when text in label is constrained down to fit width?

http://stackoverflow.com/questions/1385338/how-to-calculate-the-size-of-a-uifont-when-text-in-label-is-constrained-down-to

to calculate the size of a UIFont when text in label is constrained down to fit width Imagine a UILabel which is 200 pixels wide and 50 pixels high. The label has text inside and the label..

What's the limit for the size of iPhone apps?

http://stackoverflow.com/questions/1564859/whats-the-limit-for-the-size-of-iphone-apps

important limit is on the size of the loaded binary image and it's runtime memory usage. The iPhone is obviously a constrained device in this area. The original iPhones and iPod touches had 128Mb of total RAM with no paging. Current models have 256Mb..

why most of the objects we create in iphone are pointers

http://stackoverflow.com/questions/3044292/why-most-of-the-objects-we-create-in-iphone-are-pointers

ApplicationWillTerminate in iOS 4.0

http://stackoverflow.com/questions/3139588/applicationwillterminate-in-ios-4-0

using iPhone SDK 4 and later you must still be prepared for your application to be terminated. If memory becomes constrained the system might remove applications from memory in order to make more room. If your application is currently suspended..

Where can I find a CSV to NSArray parser for Objective-C? [closed]

http://stackoverflow.com/questions/3344628/where-can-i-find-a-csv-to-nsarray-parser-for-objective-c

Do you need to create an NSAutoreleasePool within a block in GCD?

http://stackoverflow.com/questions/4141123/do-you-need-to-create-an-nsautoreleasepool-within-a-block-in-gcd

worry about it. However if you are allocating any significant number of objects and since you are targeting a memory constrained environment then you should be creating and draining pools. The documentation has been updated. SEe https developer.apple.com.. their own autorelease pools they make no guarantees as to when those pools are drained. If your application is memory constrained creating your own autorelease pool allows you to free up the memory for autoreleased objects at more regular intervals...

Custom iPhone camera controls (not using UIImagePickerController)

http://stackoverflow.com/questions/561868/custom-iphone-camera-controls-not-using-uiimagepickercontroller

has been given special access to certain headers that allow for features that would otherwise be impossible if constrained to only using documented libraries. However given how opaque the application selection process is for the App Store I would..

Why is autorelease especially dangerous/expensive for iPhone applications?

http://stackoverflow.com/questions/613583/why-is-autorelease-especially-dangerous-expensive-for-iphone-applications

a side note near the bottom of the page iPhone OS Note Because on iPhone OS an application executes in a more memory constrained environment the use of autorelease pools is discouraged in methods or blocks of code for example loops where an application..