2014/10/15 下午 10:10:46

iphone Programming Glossary: knowing

http://stackoverflow.com/questions/1024603/opengl-es-render-to-texture

code to render a scene to a texture in OpenGL ES specifically for the iPhone if that matters . I am interested in knowing the following How do you render a scene to a texture in OpenGL ES What parameters must you use to create a texture that..

Finding Path/Route Between two points on MapKit in iPhone

http://stackoverflow.com/questions/12002179/finding-path-route-between-two-points-on-mapkit-in-iphone

longitude values of the full path and drawing line based on those values. But here I am trying to draw a line without knowing the path. So is there any way to find the path dynamically and draw a line iphone objective c ios mapkit share improve..

How to customize the callout bubble for MKAnnotationView?

http://stackoverflow.com/questions/1565828/how-to-customize-the-callout-bubble-for-mkannotationview

if I have this set to NO which is what I want so that the default callout bubble is not drawn . So I have no way of knowing if the user touched on my point on the map selected it or touched a point that is not part of my annotation views delected..

Write to a File in Monotouch

http://stackoverflow.com/questions/1829954/write-to-a-file-in-monotouch

string text File.ReadAllText filePath Console.WriteLine text So the only thing here that's really iPhone specific is knowing that Environment.SpecialFolder.Personal maps to your app's Documents folder. Beyond that it's .Net as usual. And again this..

Crossplatform iPhone / Android code sharing

http://stackoverflow.com/questions/2380258/crossplatform-iphone-android-code-sharing

reuse code between iPhone and Android builds The two most common scenarios I think would be Blank slate new project knowing ahead of time there is a large chunk of reusable logic that needs to run on each device. Existing iPhone code base porting..

App store link for “rate/review this app”

http://stackoverflow.com/questions/3124080/app-store-link-for-rate-review-this-app

type Purple Software id YOUR_APP_ID at 10l6dK Code snippet you can just copy paste it without even knowing your App Store ID for the app static NSString const iOS7AppStoreURLFormat @ itms apps itunes.apple.com app id @ at 10l6dK..

What type of webservice works best with iOS?

http://stackoverflow.com/questions/3152700/what-type-of-webservice-works-best-with-ios

legal SOAP e.g. different namespace prefixes that could break a hardcoded XML parser. 4 Difficult to answer without knowing more about your project's details but I'd lean towards a JSON or simple XML based encoding because both are usually easy..

Direct “rate in iTunes” link in my app?

http://stackoverflow.com/questions/3654144/direct-rate-in-itunes-link-in-my-app

iphone - UIColor leaking… need to release the object?

http://stackoverflow.com/questions/3868742/iphone-uicolor-leaking-need-to-release-the-object

you will eventually get crashes. UIColor is probably just caching these colors for you and Instruments has no way of knowing this so it reports them as leaks basically stuff that got created and you don't have a reference to anymore but hasn't been..

iPhone: detecting if a UIAlert/UIActionSheet are open

http://stackoverflow.com/questions/4363317/iphone-detecting-if-a-uialert-uiactionsheet-are-open

the alerts actionsheets but unfortunately this is not an option in my case. So the question is is there a way of knowing detecting whether an alert or action sheet have been opened Is there any notifications sent upon opening or any traversal..

Simple iPhone motion detect

http://stackoverflow.com/questions/5214197/simple-iphone-motion-detect

the Event Handling Guide especially the section Handling Processed Device Motion Data . If you are just interested in knowing that a slight motion was made as you stated you can omit rotation handling and narrow signal processing on CMDeviceMotion.userAcceleration...

iPhone TBXML Looping And Parsing Data

http://stackoverflow.com/questions/5406424/iphone-tbxml-looping-and-parsing-data

Understanding @Protocols in Objective-C

http://stackoverflow.com/questions/5738428/understanding-protocols-in-objective-c

. If not think of protocols as blueprints. The main reason why you'd use protocols is so you can use objects without knowing everything about them all you need to know is that they implement a set of methods. For example if the classes Business.. Contact which defines the method NSString phoneNumber the class AddressBook can call NSString phoneNumber without knowing whether or not the object is of type Business or Person . Once you start to learn about Cocoa and delegates you'll see how..

How to read objective-c stack traces

http://stackoverflow.com/questions/6462214/how-to-read-objective-c-stack-traces

particular crash had nothing to do with the parser and everything to do with a crash somewhere else. However without knowing more about the parser I'd question whether it is hardened against malicious input which could certainly cause a crash like..

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

the object any other piece of code also referencing the object will be unaffected. What can sometimes be confusing is knowing the circumstances under which you should call retain and release . My general rule of thumb is that if I want to hang on..

Transferring ownership of an iPhone app on the app store

http://stackoverflow.com/questions/671382/transferring-ownership-of-an-iphone-app-on-the-app-store

after several hours of phone calls with apple . As far as I can recall the main problem was those help desk folks were knowing things were going to change but they didn't know by when and how. Probably due to iPad coming and related timelines involved..

Can you reference Xib files from static libraries on the iPhone?

http://stackoverflow.com/questions/707429/can-you-reference-xib-files-from-static-libraries-on-the-iphone

of compiled code. Although it would be possible to put the data for the xibs in there Xcode would have no way of knowing that it was in there as it looks for them as individual files on the filesystem. In Mac OS you may create a Framework which..

To ARC or not to ARC? What are the pros and cons?

http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons

as you can and never look back. EDIT I've seen a couple of comments along the lines of using ARC is no substitute for knowing the Cocoa memory management rules. This is mostly true but it's important to understand why and why not. First if all of..

sizeWithFont doesn't give correct height for UITextView if there is a long string in the text being wrapped

http://stackoverflow.com/questions/2330939/sizewithfont-doesnt-give-correct-height-for-uitextview-if-there-is-a-long-strin

different from the font size and margins that sizeWithFont constrainedToSize linkBreakMode doesn't account for. Knowing your font size you might be able to calculate the # of lines and take line spacing into account. You can guess at the margins..

Drawing in CATiledLayer with CoreGraphics CGContextDrawImage

http://stackoverflow.com/questions/4067512/drawing-in-catiledlayer-with-coregraphics-cgcontextdrawimage

CGContextGetClipBoundingBox context is exactly what you want to draw in. Where drawRect gives you the whole bounds. Knowing this you can remove the row and column iteration as well as the CGRect intersection for the edge tiles and just draw to..

Knowing when AVPlayer object is ready to play

http://stackoverflow.com/questions/5401437/knowing-when-avplayer-object-is-ready-to-play

when AVPlayer object is ready to play Im a bit of a noob trying to play an mp3 file that is passed to a view from the previous..

How to measure true FPS performance of OpenGL ES?

http://stackoverflow.com/questions/6586635/how-to-measure-true-fps-performance-of-opengl-es

you end up with 30 FPS in theory because you're missing out every other chance to get through the render pipeline. OK Knowing this it seems nonsense to remember the start NSTimeInterval and incrementing a frame counter in the run loop then checking..

CoreAudio AudioTimeStamp.mHostTime clock frequency?

http://stackoverflow.com/questions/675626/coreaudio-audiotimestamp-mhosttime-clock-frequency

number to double GCC automatically casts the second number to double as well and the result will also be double . Knowing this factor which seems to be 1.0 on Intel machines but it can be quite different on PPC machines and maybe it's different..

Is it possible to select the text rendered by Core Text in iPhone?

http://stackoverflow.com/questions/7979592/is-it-possible-to-select-the-text-rendered-by-core-text-in-iphone

can test which line has the touched point looping the lines always remember that CoreText uses inverse Y coordinates . Knowing the line that has the touched point you can know the letter that is located at that point or the nearest letter using CTLineGetStringIndexForPosition..

Run iPhone/iPad Simulator for Continuous Integration

http://stackoverflow.com/questions/8351278/run-iphone-ipad-simulator-for-continuous-integration

Applications iPhone Simulator.app Contents MacOS iPhone Simulator Does anyone know if there are tricks to this. Knowing more about this would really help with our Continuous Integration process. We now use WaxSim to automate our iOS applications..