2014/10/15 下午 10:05:05
iphone Programming Glossary: changesDelete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data you still need to make sure you retain referential integrity or you won't be able to persist your changes. Just removing the store and recreating it is both fast and safe and can certainly be done programatically..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk case I just set a BOOL void checkNetworkStatus NSNotification notice called after network status changes NetworkStatus internetStatus internetReachable currentReachabilityStatus switch internetStatus case..
How would I tint an image programatically on the iPhone? http://stackoverflow.com/questions/1117211/how-would-i-tint-an-image-programatically-on-the-iphone it overlayColor to hold the blend color and a custom setter that forces a redraw when the color changes. Something like this void setOverlayColor UIColor newColor if overlayColor overlayColor release overlayColor.. release overlayColor newColor retain self setNeedsDisplay fires off drawRect each time color changes In the drawRect method you'll want to draw the image first then overlay it with a rectangle filled with.. area passed in to drawRect but since the background image has to be redrawn each time the color changes it's likely the whole thing will need refreshing. To use it create an instance of the object then set..
Determining if an iPhone is Jail broken Programatically http://stackoverflow.com/questions/1140856/determining-if-an-iphone-is-jail-broken-programatically
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 2793392 how do i compile a static library fat for armv6 armv7 and i386 Since Apple's latest changes the Simulator part isn't the same as the arm6 arm7 difference any more it's a different problem see.. # # Author Adam Martin http twitter.com redglassesapps # Based on original script from Eonil main changes Eonil's script WILL NOT WORK in Xcode GUI it WILL CRASH YOUR COMPUTER # set e set o pipefail #################..
How to determine the content size of a UIWebView? http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview by the fitting size. This sounds terrible but it's actually not that bad. Since we do both frame changes right after each other the view isn't updated and doesn't flicker. Of course we have to wait until the..
Set the maximum character length of a UITextField http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield textField.text length string length range.length return newLength 25 NO YES Before the text field changes the UITextField asks the delegate if the specified text should be changed. The text field has not changed..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events WiFi data you've used. I suspect that the developer is registering his app as tracking location changes but the location services icon isn't visible while the app is running which I thought was a requirement...
Change User Agent in UIWebView (iPhone SDK) http://stackoverflow.com/questions/478387/change-user-agent-in-uiwebview-iphone-sdk IE browser in a Windows app iphone cocoa touch share improve this question With iOS 5 changes I recommend the following approach originally from this StackOverflow question UIWebView iOS5 changing..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices the local core data store and the change is saved. a If the device is online it tries to send the changeset to the server including the device ID of the device which sent the changeset. b If the changeset does.. it tries to send the changeset to the server including the device ID of the device which sent the changeset. b If the changeset does not reach the server or if the device is not online the app will add the.. changeset to the server including the device ID of the device which sent the changeset. b If the changeset does not reach the server or if the device is not online the app will add the change set to a queue..
http://stackoverflow.com/questions/5619719/write-a-file-on-ios this question Your code is working at my end i have just tested it. Where are you checking your changes Use Documents directory path. To get path NSLog @ @ documentsDirectory and copy path from console and..
Play music in the background using AVAudioplayer http://stackoverflow.com/questions/7619794/play-music-in-the-background-using-avaudioplayer question I had solved this question by referring iOS Application Background tasks and make some changes in .plist file of our application.. Update write this code in your controller's view did load method..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample the local copies are the same. So from the perspective of your app the file just is in iCloud. All changes you make to a file or directory in iCloud must be made using a file coordinator object. These changes.. you make to a file or directory in iCloud must be made using a file coordinator object. These changes include moving deleting copying or renaming the item. The file coordinator ensures that the iCloud daemon.. file or directory at the same time and ensures that other interested parties are notified of the changes you make. However if you dig a little deeper into the docs concerning setUbiquitous you'll find Use..
iPhone - strange error when testing on simulator http://stackoverflow.com/questions/788277/iphone-strange-error-when-testing-on-simulator when it crashed on clicking a button of a UIAlertView. I stopped debugging there made some changes to the code and built the app again. Now when I run the application I get this error in the console..
Delete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data if you want to delete some entities and not others. However you still need to make sure you retain referential integrity or you won't be able to persist your changes. Just removing the store and recreating it is both fast and safe and can certainly be done programatically at runtime. Update for iOS5 With the introduction of..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk checks or call whatever methods you may have set up in my case I just set a BOOL void checkNetworkStatus NSNotification notice called after network status changes NetworkStatus internetStatus internetReachable currentReachabilityStatus switch internetStatus case NotReachable NSLog @ The internet is down. self.internetActive..
How would I tint an image programatically on the iPhone? http://stackoverflow.com/questions/1117211/how-would-i-tint-an-image-programatically-on-the-iphone method. Your class needs a UIColor property let's call it overlayColor to hold the blend color and a custom setter that forces a redraw when the color changes. Something like this void setOverlayColor UIColor newColor if overlayColor overlayColor release overlayColor newColor retain self setNeedsDisplay fires off drawRect.. setOverlayColor UIColor newColor if overlayColor overlayColor release overlayColor newColor retain self setNeedsDisplay fires off drawRect each time color changes In the drawRect method you'll want to draw the image first then overlay it with a rectangle filled with the color you want along with the proper blending mode something.. the drawing you would restrict the actual drawing to only the area passed in to drawRect but since the background image has to be redrawn each time the color changes it's likely the whole thing will need refreshing. To use it create an instance of the object then set the image property inherited from UIImageView to the picture..
Determining if an iPhone is Jail broken Programatically http://stackoverflow.com/questions/1140856/determining-if-an-iphone-is-jail-broken-programatically
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 part but ignored the i386 part http stackoverflow.com questions 2793392 how do i compile a static library fat for armv6 armv7 and i386 Since Apple's latest changes the Simulator part isn't the same as the arm6 arm7 difference any more it's a different problem see above iphone xcode share improve this question ALTERNATIVES.. library for iPhone iPad iPhone Simulator from within XCode # # Author Adam Martin http twitter.com redglassesapps # Based on original script from Eonil main changes Eonil's script WILL NOT WORK in Xcode GUI it WILL CRASH YOUR COMPUTER # set e set o pipefail ################# Tests helps workaround any future bugs in Xcode ########..
How to determine the content size of a UIWebView? http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview sizeThatFits . After that we can correct the wrong frame size by the fitting size. This sounds terrible but it's actually not that bad. Since we do both frame changes right after each other the view isn't updated and doesn't flicker. Of course we have to wait until the content has been loaded so we put the code into the webViewDidFinishLoad..
Set the maximum character length of a UITextField http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield range replacementString NSString string NSUInteger newLength textField.text length string length range.length return newLength 25 NO YES Before the text field changes the UITextField asks the delegate if the specified text should be changed. The text field has not changed at this point so we grab it's current length and the string..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events in the background and keeps track of the count of Cellular WiFi data you've used. I suspect that the developer is registering his app as tracking location changes but the location services icon isn't visible while the app is running which I thought was a requirement. Does anyone have any clues as to how this can be accomplished..
Change User Agent in UIWebView (iPhone SDK) http://stackoverflow.com/questions/478387/change-user-agent-in-uiwebview-iphone-sdk iPhone SDK's UIWebView control the way it is say for an embedded IE browser in a Windows app iphone cocoa touch share improve this question With iOS 5 changes I recommend the following approach originally from this StackOverflow question UIWebView iOS5 changing user agent as pointed out in an answer below. In comments..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices thinking about the following concept A change is made to the local core data store and the change is saved. a If the device is online it tries to send the changeset to the server including the device ID of the device which sent the changeset. b If the changeset does not reach the server or if the device is not online the.. store and the change is saved. a If the device is online it tries to send the changeset to the server including the device ID of the device which sent the changeset. b If the changeset does not reach the server or if the device is not online the app will add the change set to a queue to send when it does come online. The.. is saved. a If the device is online it tries to send the changeset to the server including the device ID of the device which sent the changeset. b If the changeset does not reach the server or if the device is not online the app will add the change set to a queue to send when it does come online. The server sitting in the..
http://stackoverflow.com/questions/5619719/write-a-file-on-ios on resources. iphone file nsbundle share improve this question Your code is working at my end i have just tested it. Where are you checking your changes Use Documents directory path. To get path NSLog @ @ documentsDirectory and copy path from console and then open finder and press Cmd shift g and paste path here..
Play music in the background using AVAudioplayer http://stackoverflow.com/questions/7619794/play-music-in-the-background-using-avaudioplayer play iphone objective c ipad share improve this question I had solved this question by referring iOS Application Background tasks and make some changes in .plist file of our application.. Update write this code in your controller's view did load method like this void viewDidLoad NSURL url NSURL fileURLWithPath..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample iCloud daemon handles all of the work of making sure that the local copies are the same. So from the perspective of your app the file just is in iCloud. All changes you make to a file or directory in iCloud must be made using a file coordinator object. These changes include moving deleting copying or renaming the item. The.. perspective of your app the file just is in iCloud. All changes you make to a file or directory in iCloud must be made using a file coordinator object. These changes include moving deleting copying or renaming the item. The file coordinator ensures that the iCloud daemon does not change the file or directory at the same time.. ensures that the iCloud daemon does not change the file or directory at the same time and ensures that other interested parties are notified of the changes you make. However if you dig a little deeper into the docs concerning setUbiquitous you'll find Use this method to move a file from its current location to iCloud...
iPhone - strange error when testing on simulator http://stackoverflow.com/questions/788277/iphone-strange-error-when-testing-on-simulator when testing on simulator I was testing my app on the simulator when it crashed on clicking a button of a UIAlertView. I stopped debugging there made some changes to the code and built the app again. Now when I run the application I get this error in the console Couldn't register com.myApp.debug with the bootstrap server...
Delete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data not others. However you still need to make sure you retain referential integrity or you won't be able to persist your changes. Just removing the store and recreating it is both fast and safe and can certainly be done programatically at runtime. Update..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk may have set up in my case I just set a BOOL void checkNetworkStatus NSNotification notice called after network status changes NetworkStatus internetStatus internetReachable currentReachabilityStatus switch internetStatus case NotReachable NSLog..
How would I tint an image programatically on the iPhone? http://stackoverflow.com/questions/1117211/how-would-i-tint-an-image-programatically-on-the-iphone property let's call it overlayColor to hold the blend color and a custom setter that forces a redraw when the color changes. Something like this void setOverlayColor UIColor newColor if overlayColor overlayColor release overlayColor newColor retain.. overlayColor overlayColor release overlayColor newColor retain self setNeedsDisplay fires off drawRect each time color changes In the drawRect method you'll want to draw the image first then overlay it with a rectangle filled with the color you want.. drawing to only the area passed in to drawRect but since the background image has to be redrawn each time the color changes it's likely the whole thing will need refreshing. To use it create an instance of the object then set the image property..
Determining if an iPhone is Jail broken Programatically http://stackoverflow.com/questions/1140856/determining-if-an-iphone-is-jail-broken-programatically
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 questions 2793392 how do i compile a static library fat for armv6 armv7 and i386 Since Apple's latest changes the Simulator part isn't the same as the arm6 arm7 difference any more it's a different problem see above iphone xcode.. from within XCode # # Author Adam Martin http twitter.com redglassesapps # Based on original script from Eonil main changes Eonil's script WILL NOT WORK in Xcode GUI it WILL CRASH YOUR COMPUTER # set e set o pipefail ################# Tests helps..
How to determine the content size of a UIWebView? http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview the wrong frame size by the fitting size. This sounds terrible but it's actually not that bad. Since we do both frame changes right after each other the view isn't updated and doesn't flicker. Of course we have to wait until the content has been..
Set the maximum character length of a UITextField http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield NSUInteger newLength textField.text length string length range.length return newLength 25 NO YES Before the text field changes the UITextField asks the delegate if the specified text should be changed. The text field has not changed at this point..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events the count of Cellular WiFi data you've used. I suspect that the developer is registering his app as tracking location changes but the location services icon isn't visible while the app is running which I thought was a requirement. Does anyone have..
Change User Agent in UIWebView (iPhone SDK) http://stackoverflow.com/questions/478387/change-user-agent-in-uiwebview-iphone-sdk it is say for an embedded IE browser in a Windows app iphone cocoa touch share improve this question With iOS 5 changes I recommend the following approach originally from this StackOverflow question UIWebView iOS5 changing user agent as pointed..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices A change is made to the local core data store and the change is saved. a If the device is online it tries to send the changeset to the server including the device ID of the device which sent the changeset. b If the changeset does not reach the server.. the device is online it tries to send the changeset to the server including the device ID of the device which sent the changeset. b If the changeset does not reach the server or if the device is not online the app will add the change set to a queue.. it tries to send the changeset to the server including the device ID of the device which sent the changeset. b If the changeset does not reach the server or if the device is not online the app will add the change set to a queue to send when it does..
http://stackoverflow.com/questions/5619719/write-a-file-on-ios share improve this question Your code is working at my end i have just tested it. Where are you checking your changes Use Documents directory path. To get path NSLog @ @ documentsDirectory and copy path from console and then open finder and..
Play music in the background using AVAudioplayer http://stackoverflow.com/questions/7619794/play-music-in-the-background-using-avaudioplayer share improve this question I had solved this question by referring iOS Application Background tasks and make some changes in .plist file of our application.. Update write this code in your controller's view did load method like this void viewDidLoad..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample of making sure that the local copies are the same. So from the perspective of your app the file just is in iCloud. All changes you make to a file or directory in iCloud must be made using a file coordinator object. These changes include moving deleting.. in iCloud. All changes you make to a file or directory in iCloud must be made using a file coordinator object. These changes include moving deleting copying or renaming the item. The file coordinator ensures that the iCloud daemon does not change.. does not change the file or directory at the same time and ensures that other interested parties are notified of the changes you make. However if you dig a little deeper into the docs concerning setUbiquitous you'll find Use this method to move..
iPhone - strange error when testing on simulator http://stackoverflow.com/questions/788277/iphone-strange-error-when-testing-on-simulator my app on the simulator when it crashed on clicking a button of a UIAlertView. I stopped debugging there made some changes to the code and built the app again. Now when I run the application I get this error in the console Couldn't register com.myApp.debug..
AVAudioPlayer turns off iPod - how to work around? http://stackoverflow.com/questions/1507541/avaudioplayer-turns-off-ipod-how-to-work-around sharedInstance setActive YES error nil From the docs kAudioSessionProperty_OverrideCategoryMixWithOthers Changes the mixing behavior of the kAudioSessionCategory_MediaPlayback and kAudioSessionCategory_PlayAndRecord audio session categories...
Core Data backed UITableView with indexing http://stackoverflow.com/questions/1599204/core-data-backed-uitableview-with-indexing sectionInfo fetchedResultsController sections objectAtIndex section sectionInfo indexTitle this is the index Changes to the content just indicate that the table needs to be updated void controllerDidChangeContent NSFetchedResultsController..
Setting Address Book image for a contact doesn't seem to work http://stackoverflow.com/questions/2082845/setting-address-book-image-for-a-contact-doesnt-seem-to-work if ABPersonSetImageData person CFDataRef dataRef error NSLog @ Set contact photo @ error if ABAddressBookHasUnsavedChanges addressBook NSLog @ Changes made to address book else NSLog @ No changes made to address book if ABAddressBookSave addressBook.. CFDataRef dataRef error NSLog @ Set contact photo @ error if ABAddressBookHasUnsavedChanges addressBook NSLog @ Changes made to address book else NSLog @ No changes made to address book if ABAddressBookSave addressBook error NSLog @ Saved..
Change the first character in each word of a string to uppercase http://stackoverflow.com/questions/2347786/change-the-first-character-in-each-word-of-a-string-to-uppercase the first character in each word of a string to uppercase I found the function below CFStringCapitalize Changes the first character in each word of a string to uppercase if it is a lowercase alphabetical character . void CFStringCapitalize..
CATransaction: Layer Changes But Does Not Animate http://stackoverflow.com/questions/2981676/catransaction-layer-changes-but-does-not-animate Layer Changes But Does Not Animate I'm trying to animate part of UI in an iPad app when the user taps a button. I have this code in my..
Deleting an app in iTunes Connect http://stackoverflow.com/questions/3377534/deleting-an-app-in-itunes-connect There is a link near the end Click on the Deselect all button to uncheck all App Store territories. Click on the Save Changes button. After removing all assigned territory checkboxes from your app in the Rights and Pricing section the status changes..
How to remove an iOS app from the App Store http://stackoverflow.com/questions/3468262/how-to-remove-an-ios-app-from-the-app-store grid of checkboxes for the various countries your app is available in. Click the blue 𡤜eselect All button. Click �Save Changes at the bottom. Your app's state will then be 𡤜eveloper Removed From Sale and it will no longer be available on the App Store..
Is there a calendar control we can use for iPhone apps? [closed] http://stackoverflow.com/questions/3634000/is-there-a-calendar-control-we-can-use-for-iphone-apps receive notifications when event records change and allow users to create and edit events for any of their calendars. Changes made to events in a user 䏭 Calendar database with Event Kit are automatically synced with the appropriate calendar CalDAV..
Is it possible to accessing iphone notes, calendar in IOS? http://stackoverflow.com/questions/3941719/is-it-possible-to-accessing-iphone-notes-calendar-in-ios receive notifications when event records change and allow users to create and edit events for any of their calendars. Changes made to events in a user 䏭 Calendar database with Event Kit are automatically synced with the appropriate calendar CalDAV..
UITableViewCell expand on click http://stackoverflow.com/questions/4635338/uitableviewcell-expand-on-click reevaluate each cell's height with beginUpdates plus endUpdates self.tableView beginUpdates self.tableView endUpdates Changes to the tableview cells' heights will automatically be calculated with heightForRowAtIndexPath and the changes will be animated..
What are the Dangers of Method Swizzling in Objective C? http://stackoverflow.com/questions/5339276/what-are-the-dangers-of-method-swizzling-in-objective-c both the good and the bad. Discussion Here are some of the pitfalls of method swizzling Method swizzling is not atomic Changes behavior of un owned code Possible naming conflicts Swizzling changes the method's arguments The order of swizzles matters.. you could end up with a race condition in your swizzling implementation and the runtime could end up in a weird state. Changes behavior of un owned code This is an issue with swizzling but it's kind of the whole point. The goal is to be able to change..
UITableView cell background color http://stackoverflow.com/questions/5921300/uitableview-cell-background-color forRowAtIndexPath method of the delegate and not in tableView cellForRowAtIndexPath of the data source. Changes to the background colors of cells in a group style table view has an effect in iOS 3.0 that is different than previous versions..
Need some help understanding transient properties in Core Data http://stackoverflow.com/questions/7504391/need-some-help-understanding-transient-properties-in-core-data are attributes of the class only and do not show up in the entity and they are never persisted in Core Data. Changes to unmodeled properties go unnoticed by the context. Faults are placeholder objects that define an object graph with relationships.. unmodeled methods are always available see below. You can also use NSManagedObject contextShouldIgnoreUnmodeledPropertyChanges to force a context to watch unmodeled properties. However that can cause unanticipated and unmanaged behavior if the unmodeled..
Regarding Apple's KMLViewer placemarkDescription and annotation subtitle http://stackoverflow.com/questions/8285153/regarding-apples-kmlviewer-placemarkdescription-and-annotation-subtitle pd placemarkDescription pd void dealloc title dealloc subtitle dealloc placemarkDescription dealloc super dealloc @end Changes in KMLParser.M KMLPoint class MKShape mapkitShape PlacemarkAnnotation2 annotation PlacemarkAnnotation2 alloc init annotation.coordinate..
How can I resolve this iCloud Error? http://stackoverflow.com/questions/8937805/how-can-i-resolve-this-icloud-error following log on iPad B which was connected to the computer. 2012 01 20 17 35 35.979 My App 407 22d7 AppDelegate Merge Changes From iCloud Notifications 2012 01 20 17 35 35.980 My App 407 22d7 AppDelegate managed Object Context 2012 01 20 17 35 35.981..
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