2014/10/15 下午 10:12:59
iphone Programming Glossary: provided@synthesize vs @dynamic, what are the differences? http://stackoverflow.com/questions/1160498/synthesize-vs-dynamic-what-are-the-differences methods are implemented not by the class itself but somewhere else like the superclass or will be provided at runtime . Uses for @dynamic are e.g. with subclasses of NSManagedObject CoreData or when you want..
Setting action for back button in navigation controller http://stackoverflow.com/questions/1214965/setting-action-for-back-button-in-navigation-controller I'm trying to overwrite the default action of the back button in a navigation controller. I've provided a target an action on the custom button. The odd thing is when assigning it though the backbutton attribute..
UIScrollView horizontal paging like Mobile Safari tabs http://stackoverflow.com/questions/1220354/uiscrollview-horizontal-paging-like-mobile-safari-tabs where a horizontally scrollable UIScrollView shows some of the next view's content. The Apple provided example PageControl shows how to use a UIScrollView for horizontal paging but all views take up the..
iOS crash reports: atos not working as expected http://stackoverflow.com/questions/13574933/ios-crash-reports-atos-not-working-as-expected crash reports atos not working as expected I'm looking at a crash report provided by Apple Hardware Model iPhone4 1 Version Code Type ARM Native Parent Process launchd 1 Date Time 2012..
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 pixel data a better method as it provides writable data whereas as I understand it the method provided by previous posts and at the bottom of this post provides a read only reference to data . Method 1 Writable..
Does my application “contain encryption”? http://stackoverflow.com/questions/2135081/does-my-application-contain-encryption about your app every January. 2nd Question Does your product qualify for any exemptions provided under category 5 part 2 There are several exemptions available in US export regulations under Category.. determine that your app is not classified under Category 5 Part 2 of the EAR based on the guidance provided by BIS at encryption question . The Statement of Understanding for medical equipment in Supplement No... app distributed at free of cost to general public and you have met the notification requirements provided under 740.13. e . Please visit encryption web page in case you need further help in determining if your..
Send and receive messages through NSNotificationCenter in Objective-C? [closed] http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c we tell the notification center that we are not interested in who posted the notification. If you provided an actual object rather than nil the notification center will only notify you when the notification..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application string string org.gnu.gnu zip archive string array dict array Two images are provided that will be used as icons for the supported types in Mail and other applications capable of showing..
How can I launch the Google Maps iPhone application from within my own native application? http://stackoverflow.com/questions/30058/how-can-i-launch-the-google-maps-iphone-application-from-within-my-own-native-ap and then click it whilst using Mobile Safari on the iPhone the Google Maps application that is provided as standard with the iPhone will launch. How can I launch the same Google Maps application with a specific..
Can I embed a custom font in an iPhone application? http://stackoverflow.com/questions/360751/can-i-embed-a-custom-font-in-an-iphone-application bounty auto awards to the answer with the highest number of votes. Interesting. No one actually provided an answer that solved the question as asked the solution that involves coding your own UILabel subclass..
UITextView with Syntax Highlighting [duplicate] http://stackoverflow.com/questions/3642540/uitextview-with-syntax-highlighting background colors text storage management efficiency spell checking etc. Some of these are provided by system frameworks but still need a lot of integration. File a bug and wait for a nice public API..
iphone/ipad: How exactly use NSAttributedString? http://stackoverflow.com/questions/3786528/iphone-ipad-how-exactly-use-nsattributedstring methods for setting the attributes of an NSAttributedString from UIKit classes. From the sample provided in the repo #import NSAttributedString Attributes.h #import OHAttributedLabel.h 1 Build the NSAttributedString..
Getting current device language in iOS? http://stackoverflow.com/questions/3910244/getting-current-device-language-in-ios format. Not @ en_US iphone objective c ios nslocale share improve this question The solutions provided will actually return the current region of the device not the currently selected language. These are..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview CGImageRelease maskedImageRef returns new image with mask applied return maskedImage After you provided your code I have added some numbers as comments to it for reference. You still have two options. This..
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes release Notes A mapping model ends in cdm in the bundle. The destination store has to be provided and should not be the source store. You can after successful migration delete the old and rename the..
What's the easiest way to resize/optimize an image size with the iPhone SDK? http://stackoverflow.com/questions/612131/whats-the-easiest-way-to-resize-optimize-an-image-size-with-the-iphone-sdk iphone ios image cocoa touch resize share improve this question A couple of suggestions are provided as answers to this question . I had suggested the technique described in this post with the relevant..
Detecting Color of iPhone/iPad/iPod touch? http://stackoverflow.com/questions/8463212/detecting-color-of-iphone-ipad-ipod-touch ask the user Hey what's the color of your phone and then do accordingly. Additionally a research provided me with this information I'm not sure if it's TRUE or if is going to help you. The serial number is..
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 point of ARC. For 95 of code out there ARC is brilliant and there is no reason at all to avoid it provided you can handle the OS version restrictions . For non ARC code you can pass fno objc arc on a file by..
@synthesize vs @dynamic, what are the differences? http://stackoverflow.com/questions/1160498/synthesize-vs-dynamic-what-are-the-differences @dynamic just tells the compiler that the getter and setter methods are implemented not by the class itself but somewhere else like the superclass or will be provided at runtime . Uses for @dynamic are e.g. with subclasses of NSManagedObject CoreData or when you want to create an outlet for a property defined by a superclass..
Setting action for back button in navigation controller http://stackoverflow.com/questions/1214965/setting-action-for-back-button-in-navigation-controller action for back button in navigation controller I'm trying to overwrite the default action of the back button in a navigation controller. I've provided a target an action on the custom button. The odd thing is when assigning it though the backbutton attribute it doesn't pay attention to them and it just pops the..
UIScrollView horizontal paging like Mobile Safari tabs http://stackoverflow.com/questions/1220354/uiscrollview-horizontal-paging-like-mobile-safari-tabs at the bottom. I am trying to replicate this particular behavior where a horizontally scrollable UIScrollView shows some of the next view's content. The Apple provided example PageControl shows how to use a UIScrollView for horizontal paging but all views take up the whole screen width. How do I get a UIScrollView to show some..
iOS crash reports: atos not working as expected http://stackoverflow.com/questions/13574933/ios-crash-reports-atos-not-working-as-expected crash reports atos not working as expected I'm looking at a crash report provided by Apple Hardware Model iPhone4 1 Version Code Type ARM Native Parent Process launchd 1 Date Time 2012 11 18 16 03 44.951 0600 OS Version iOS 6.0.1 10A523 Report..
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 propose is at least for my requirements which include modifying pixel data a better method as it provides writable data whereas as I understand it the method provided by previous posts and at the bottom of this post provides a read only reference to data . Method 1 Writable Pixel Information I defined constants #define RGBA 4..
Does my application “contain encryption”? http://stackoverflow.com/questions/2135081/does-my-application-contain-encryption an annual report to two U.S. Government agencies with information about your app every January. 2nd Question Does your product qualify for any exemptions provided under category 5 part 2 There are several exemptions available in US export regulations under Category 5 Part 2 Information Security Encryption regulations for.. question if you meet any of the following criteria i if you determine that your app is not classified under Category 5 Part 2 of the EAR based on the guidance provided by BIS at encryption question . The Statement of Understanding for medical equipment in Supplement No. 3 to Part 774 of the EAR can be accessed at Electronic Code.. vi the source code of your app is 𦑩ublicly available your app distributed at free of cost to general public and you have met the notification requirements provided under 740.13. e . Please visit encryption web page in case you need further help in determining if your app qualifies for any exemptions. If you believe that your..
Send and receive messages through NSNotificationCenter in Objective-C? [closed] http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c receiveTestNotification selector. By specifying object nil we tell the notification center that we are not interested in who posted the notification. If you provided an actual object rather than nil the notification center will only notify you when the notification was posted by that particular object. NSNotificationCenter defaultCenter..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application key LSItemContentTypes key array string com.sunsetlakesoftware.molecules.pdb string string org.gnu.gnu zip archive string array dict array Two images are provided that will be used as icons for the supported types in Mail and other applications capable of showing documents. The LSItemContentTypes key lets you provide an array..
How can I launch the Google Maps iPhone application from within my own native application? http://stackoverflow.com/questions/30058/how-can-i-launch-the-google-maps-iphone-application-from-within-my-own-native-ap Documentation explains that if you place a link in a web page and then click it whilst using Mobile Safari on the iPhone the Google Maps application that is provided as standard with the iPhone will launch. How can I launch the same Google Maps application with a specific address from within my own native iPhone application..
Can I embed a custom font in an iPhone application? http://stackoverflow.com/questions/360751/can-i-embed-a-custom-font-in-an-iphone-application the simulator too would be a bonus. EDIT it appears that the bounty auto awards to the answer with the highest number of votes. Interesting. No one actually provided an answer that solved the question as asked the solution that involves coding your own UILabel subclass doesn't support word wrap which is an essential feature..
UITextView with Syntax Highlighting [duplicate] http://stackoverflow.com/questions/3642540/uitextview-with-syntax-highlighting . This includes but is not limited to text selection highlight background colors text storage management efficiency spell checking etc. Some of these are provided by system frameworks but still need a lot of integration. File a bug and wait for a nice public API to come my personal approach . Convince Apple to allow private..
iphone/ipad: How exactly use NSAttributedString? http://stackoverflow.com/questions/3786528/iphone-ipad-how-exactly-use-nsattributedstring that draws an NSAttributedString and also provides convenience methods for setting the attributes of an NSAttributedString from UIKit classes. From the sample provided in the repo #import NSAttributedString Attributes.h #import OHAttributedLabel.h 1 Build the NSAttributedString NSMutableAttributedString attrStr NSMutableAttributedString..
Getting current device language in iOS? http://stackoverflow.com/questions/3910244/getting-current-device-language-in-ios would I use I want this as an NSString in fully spelled out format. Not @ en_US iphone objective c ios nslocale share improve this question The solutions provided will actually return the current region of the device not the currently selected language. These are often one and the same. However if I am in North America and..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview UIImage imageWithCGImage maskedImageRef CGImageRelease mask CGImageRelease maskedImageRef returns new image with mask applied return maskedImage After you provided your code I have added some numbers as comments to it for reference. You still have two options. This whole thing is a method which you are calling somewhere. You..
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes destinationStoreOptions error error2 mappingModel release Notes A mapping model ends in cdm in the bundle. The destination store has to be provided and should not be the source store. You can after successful migration delete the old and rename the new one. I did some changes to the data model after the creation..
What's the easiest way to resize/optimize an image size with the iPhone SDK? http://stackoverflow.com/questions/612131/whats-the-easiest-way-to-resize-optimize-an-image-size-with-the-iphone-sdk SDK and how can I change the quality setting of a JPEG image iphone ios image cocoa touch resize share improve this question A couple of suggestions are provided as answers to this question . I had suggested the technique described in this post with the relevant code UIImage imageWithImage UIImage image scaledToSize CGSize..
Detecting Color of iPhone/iPad/iPod touch? http://stackoverflow.com/questions/8463212/detecting-color-of-iphone-ipad-ipod-touch an additional casing for his iPhone I'd suggest to initially ask the user Hey what's the color of your phone and then do accordingly. Additionally a research provided me with this information I'm not sure if it's TRUE or if is going to help you. The serial number is the key If aabccdddeef is the serial number of the iPhone 4..
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 __weak pointers are great but they're not the #1 selling point of ARC. For 95 of code out there ARC is brilliant and there is no reason at all to avoid it provided you can handle the OS version restrictions . For non ARC code you can pass fno objc arc on a file by file basis. Xcode unfortunately makes this much harder than..
@synthesize vs @dynamic, what are the differences? http://stackoverflow.com/questions/1160498/synthesize-vs-dynamic-what-are-the-differences getter and setter methods are implemented not by the class itself but somewhere else like the superclass or will be provided at runtime . Uses for @dynamic are e.g. with subclasses of NSManagedObject CoreData or when you want to create an outlet..
Setting action for back button in navigation controller http://stackoverflow.com/questions/1214965/setting-action-for-back-button-in-navigation-controller navigation controller I'm trying to overwrite the default action of the back button in a navigation controller. I've provided a target an action on the custom button. The odd thing is when assigning it though the backbutton attribute it doesn't pay..
UIScrollView horizontal paging like Mobile Safari tabs http://stackoverflow.com/questions/1220354/uiscrollview-horizontal-paging-like-mobile-safari-tabs this particular behavior where a horizontally scrollable UIScrollView shows some of the next view's content. The Apple provided example PageControl shows how to use a UIScrollView for horizontal paging but all views take up the whole screen width...
iOS crash reports: atos not working as expected http://stackoverflow.com/questions/13574933/ios-crash-reports-atos-not-working-as-expected crash reports atos not working as expected I'm looking at a crash report provided by Apple Hardware Model iPhone4 1 Version Code Type ARM Native Parent Process launchd 1 Date Time 2012 11 18 16 03 44.951..
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 which include modifying pixel data a better method as it provides writable data whereas as I understand it the method provided by previous posts and at the bottom of this post provides a read only reference to data . Method 1 Writable Pixel Information..
Does my application “contain encryption”? http://stackoverflow.com/questions/2135081/does-my-application-contain-encryption agencies with information about your app every January. 2nd Question Does your product qualify for any exemptions provided under category 5 part 2 There are several exemptions available in US export regulations under Category 5 Part 2 Information.. criteria i if you determine that your app is not classified under Category 5 Part 2 of the EAR based on the guidance provided by BIS at encryption question . The Statement of Understanding for medical equipment in Supplement No. 3 to Part 774 of.. available your app distributed at free of cost to general public and you have met the notification requirements provided under 740.13. e . Please visit encryption web page in case you need further help in determining if your app qualifies for..
Send and receive messages through NSNotificationCenter in Objective-C? [closed] http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c object nil we tell the notification center that we are not interested in who posted the notification. If you provided an actual object rather than nil the notification center will only notify you when the notification was posted by that particular..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application com.sunsetlakesoftware.molecules.pdb string string org.gnu.gnu zip archive string array dict array Two images are provided that will be used as icons for the supported types in Mail and other applications capable of showing documents. The LSItemContentTypes..
How can I launch the Google Maps iPhone application from within my own native application? http://stackoverflow.com/questions/30058/how-can-i-launch-the-google-maps-iphone-application-from-within-my-own-native-ap a link in a web page and then click it whilst using Mobile Safari on the iPhone the Google Maps application that is provided as standard with the iPhone will launch. How can I launch the same Google Maps application with a specific address from..
Can I embed a custom font in an iPhone application? http://stackoverflow.com/questions/360751/can-i-embed-a-custom-font-in-an-iphone-application it appears that the bounty auto awards to the answer with the highest number of votes. Interesting. No one actually provided an answer that solved the question as asked the solution that involves coding your own UILabel subclass doesn't support..
UITextView with Syntax Highlighting [duplicate] http://stackoverflow.com/questions/3642540/uitextview-with-syntax-highlighting to text selection highlight background colors text storage management efficiency spell checking etc. Some of these are provided by system frameworks but still need a lot of integration. File a bug and wait for a nice public API to come my personal..
iphone/ipad: How exactly use NSAttributedString? http://stackoverflow.com/questions/3786528/iphone-ipad-how-exactly-use-nsattributedstring provides convenience methods for setting the attributes of an NSAttributedString from UIKit classes. From the sample provided in the repo #import NSAttributedString Attributes.h #import OHAttributedLabel.h 1 Build the NSAttributedString NSMutableAttributedString..
Getting current device language in iOS? http://stackoverflow.com/questions/3910244/getting-current-device-language-in-ios fully spelled out format. Not @ en_US iphone objective c ios nslocale share improve this question The solutions provided will actually return the current region of the device not the currently selected language. These are often one and the same...
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview CGImageRelease mask CGImageRelease maskedImageRef returns new image with mask applied return maskedImage After you provided your code I have added some numbers as comments to it for reference. You still have two options. This whole thing is a method..
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes error error2 mappingModel release Notes A mapping model ends in cdm in the bundle. The destination store has to be provided and should not be the source store. You can after successful migration delete the old and rename the new one. I did some..
What's the easiest way to resize/optimize an image size with the iPhone SDK? http://stackoverflow.com/questions/612131/whats-the-easiest-way-to-resize-optimize-an-image-size-with-the-iphone-sdk of a JPEG image iphone ios image cocoa touch resize share improve this question A couple of suggestions are provided as answers to this question . I had suggested the technique described in this post with the relevant code UIImage imageWithImage..
Detecting Color of iPhone/iPad/iPod touch? http://stackoverflow.com/questions/8463212/detecting-color-of-iphone-ipad-ipod-touch suggest to initially ask the user Hey what's the color of your phone and then do accordingly. Additionally a research provided me with this information I'm not sure if it's TRUE or if is going to help you. The serial number is the key If aabccdddeef..
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 not the #1 selling point of ARC. For 95 of code out there ARC is brilliant and there is no reason at all to avoid it provided you can handle the OS version restrictions . For non ARC code you can pass fno objc arc on a file by file basis. Xcode unfortunately..
How can my server securely authenticate iPhone in-app purchase? http://stackoverflow.com/questions/1581246/how-can-my-server-securely-authenticate-iphone-in-app-purchase can validate iphone authentication iphone sdk 3.0 certificate in app purchase share improve this question Apple Provided Vulnerable Approach The server can authenticate a purchase by doing the following The iPhone application receives a transactionReceipt..
how to resume recording after interruption occured in iphone? http://stackoverflow.com/questions/1706064/how-to-resume-recording-after-interruption-occured-in-iphone problem. I used AudioQueues basically the backend code is the same of SpeakHere application with some minor changes. Provided two more apis in it void resume AudioQueueStart queueObject NULL void pause AudioQueuePause queueObject In AudioRecorder..
iOS 4 VOIP app responding in the background http://stackoverflow.com/questions/3478344/ios-4-voip-app-responding-in-the-background and then create a pair of streams with CFStreamCreatePairWithSocket . It might let you use them on a UDP socket. Provided the streams don't read data unless you ask you might be able to get away with using the FD directly. Good luck with that..
How would you weigh something using an Iphone? [closed] http://stackoverflow.com/questions/3633483/how-would-you-weigh-something-using-an-iphone would you weigh something using an Iphone closed Provided you know the weight of the phone how would you weight any object using the phone Edit Ok what if you had a device that would..
http://stackoverflow.com/questions/4650175/rating-stars-for-the-iphone and have not found a solid solution. This question Anyone know whether there is a 5 star rating component on iPhone Provided a couple of links to projects which are no longer available and i have not been able to track them down. Edit I am apparently..
UIScrollView with centered UIImageView, like Photos app http://stackoverflow.com/questions/638299/uiscrollview-with-centered-uiimageview-like-photos-app orientation. I did not manage to have the map in the center with correct zooming and scrolling at the same time. Provided that the map image starts from the top of the screen in portrait orientation the code looks something like void loadView..
http://stackoverflow.com/questions/7733223/serving-non-retina-and-retina-displays-with-one-code-base-framework-for-scaling two sets of assets one for Retina and one for non Retina and design their layouts in relative terms called units. Provided devs follow a certain naming convention iOS automatically detects the user's screen size and uses the right assets and scales..
Audio Unit Graph pause and repeating http://stackoverflow.com/questions/7977777/audio-unit-graph-pause-and-repeating code IphoneMixerEQGraphTest . So far I have encountered two problems 1. I can't find any way to pause playing 2. Provided example repeats endlessly. Is There a way I can disable repeat or or stop it using a timer intercept some kind of buffer..
How to post more parameters with image upload code in iOS? http://stackoverflow.com/questions/10618056/how-to-post-more-parameters-with-image-upload-code-in-ios and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY FITNESS.. and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY FITNESS..
Tap pressure strength detection using accelerometer http://stackoverflow.com/questions/5179426/tap-pressure-strength-detection-using-accelerometer the following disclaimer in the documentation and or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY.. the following disclaimer in the documentation and or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY..
SFHFKeychainUtils. iOS keychain. ARC compatible http://stackoverflow.com/questions/7663443/sfhfkeychainutils-ios-keychain-arc-compatible and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY FITNESS.. and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY FITNESS..
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