2014/10/15 下午 10:14:12

iphone Programming Glossary: significantly

Optimized Image Loading in a UIScrollView

http://stackoverflow.com/questions/1098234/optimized-image-loading-in-a-uiscrollview

UIImageViews showing up on the screen. First and foremost I'd be looking for things that are impacting the processor significantly as NSOperation alone should not interfere with the main thread. Secondly I'd be looking for details surrounding the NSOperation..

How do I create a mutable array of CGImageRefs?

http://stackoverflow.com/questions/1392321/how-do-i-create-a-mutable-array-of-cgimagerefs

properly Can I get away with using a C array If so how do I construct it and how do I add elements to it later Is it significantly more costly to use UIImages instead of CGImageRefs as the elements of the collection iphone objective c arrays uikit cgimage..

Does apple view the actual source code when approving apps?

http://stackoverflow.com/questions/3186648/does-apple-view-the-actual-source-code-when-approving-apps

that they check for proper usage of no persistent selections on table view rows etc. . If your application deviates significantly from the Human Interface Guidelines when using these standard UI elements you may get rejected. Apple is very careful about..

Will use of the paypal ios library get my app rejected?

http://stackoverflow.com/questions/3894202/will-use-of-the-paypal-ios-library-get-my-app-rejected

with a subscription model and I saw this ios paypal library apple takes 30 of revenue of everything but Paypal takes significantly less for micropayments maxing out at 10 . Naturally I became interested. I guess what I'm confused about is this if apple..

Usage of NSException in iPhone Apps

http://stackoverflow.com/questions/4310560/usage-of-nsexception-in-iphone-apps

off using an exception to indicate an unrecoverable error or simply crashing call abort a crash often leaves behind significantly more evidence. For example it would not be appropriate to use for catching out of bounds exceptions unless your goal is.. calls into system code which calls into more of your code a very common pattern though the call stacks are obviously significantly deeper . If your code 2 throws an exception that the exceptions passes over system code means the behavior is undefined..

How do I debug with NSLog(@“Inside of the iPhone Simulator”)?

http://stackoverflow.com/questions/558568/how-do-i-debug-with-nsloginside-of-the-iphone-simulator

have to download and parse through logs after the fact. The chance of shipping console spew in your application is significantly decreased. Also check out the Speak button it's great for debugging full screen apps where you can't see the debug log...

OpenGL-ES 2.0 VS OpenGL-ES 1.1, which is faster?

http://stackoverflow.com/questions/5682010/opengl-es-2-0-vs-opengl-es-1-1-which-is-faster

looking faster effects. For example I'm finishing an update to my molecular renderer using 2.0 shaders that will significantly increase resolution of the visualized structures. I'm doing this by using custom shaders that generate raytraced impostors..

How can I optimize the rendering of a large model in OpenGL ES 1.1?

http://stackoverflow.com/questions/5718846/how-can-i-optimize-the-rendering-of-a-large-model-in-opengl-es-1-1

use GLshort instead of GLfloat for my vertices and normals without losing much precision in the rendering. This will significantly compact your geometry and lead to a nice speed boost in rendering. Bin similarly colored vertices and render them as one..

Looking for experiences on the Apple MFi program registration process [closed]

http://stackoverflow.com/questions/5734071/looking-for-experiences-on-the-apple-mfi-program-registration-process

going to hire a contractor to design this and have a coherent business plan behind it. The approval process eased up significantly about a year ago but you need to be able to answer pointed questions about what you're building. You will need to be a company..

Does iOS 5 have garbage collection?

http://stackoverflow.com/questions/6576674/does-ios-5-have-garbage-collection

actually uses its memory. In general a GC program will use more memory than a non GC program and will slow down significantly when the GC decides to collect. ARC on the other hand moves the scanning to compile time and frees memory as soon as it's..

Are the Core Image filters in iOS 5.0 fast enough for realtime video processing?

http://stackoverflow.com/questions/6625888/are-the-core-image-filters-in-ios-5-0-fast-enough-for-realtime-video-processing

the same operation as my own so it was a poor benchmark. The performance of Core Image filters also improved significantly in iOS 6 which helped make them more than fast enough to process live video on iPhone 4S and up. Also I've since found several.. process live video on iPhone 4S and up. Also I've since found several cases like large radius blurs where Core Image significantly outperforms my GPUImage framework. Previous answer for posterity As with any performance related question the answer will..

Start a location-aware background service in iOS on boot

http://stackoverflow.com/questions/6830164/start-a-location-aware-background-service-in-ios-on-boot

high precision location data. With this service location updates are generated only when the user 䏭 location changes significantly thus it is ideal for social applications or applications that provide the user with noncritical location relevant information...

UIScrollView : paging horizontally, scrolling vertically?

http://stackoverflow.com/questions/728014/uiscrollview-paging-horizontally-scrolling-vertically

to be handled or to be forwarded UIScrollView starts a timer when you first touch it If you haven't moved your finger significantly within 150ms it passes the event on to the inner view. If you have moved your finger significantly within 150ms it starts.. moved your finger significantly within 150ms it passes the event on to the inner view. If you have moved your finger significantly within 150ms it starts scrolling and never passes the event to the inner view . Note how when you touch a table which is.. view and start scrolling immediately the row that you touched is never highlighted. If you have not moved your finger significantly within 150ms and UIScrollView started passing the events to the inner view but then you have moved the finger far enough..

app rejected from apple app store because UIWebview, need some advice

http://stackoverflow.com/questions/7421002/app-rejected-from-apple-app-store-because-uiwebview-need-some-advice

your app content may differ from your web site or other existing sites the experience it provides does not differ significantly from the general experience of using Safari as required by the App Store Review Guidelines. You may wish to provide convenient..

Dispelling the UIImage imageNamed: FUD

http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud

is going on. The biggest thing that imageNamed does is decode the image data from the source file which almost always significantly inflates the data size for example a screen sized PNG file might consume a few dozen KBs when compressed but consumes over..

Internal clock in iPhone background mode

http://stackoverflow.com/questions/9564823/internal-clock-in-iphone-background-mode

time you calculated and modify it according to the modifications in kern.boottime. If you see kern.boottime changed significantly it may mean that the device was turned off and in this case you will need to contact the server to ask it for the time until..