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2014/10/15 ¤U¤È 10:11:14
iphone Programming Glossary: mainHow 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 is reachable internetReachableFoo.reachableBlock ^ Reachability reach Update the UI on the main thread dispatch_async dispatch_get_main_queue ^ NSLog @ Yayyy we have the interwebs Internet is not.. ^ Reachability reach Update the UI on the main thread dispatch_async dispatch_get_main_queue ^ NSLog @ Yayyy we have the interwebs Internet is not reachable internetReachableFoo.unreachableBlock.. is not reachable internetReachableFoo.unreachableBlock ^ Reachability reach Update the UI on the main thread dispatch_async dispatch_get_main_queue ^ NSLog @ Someone broke the internet internetReachableFoo..
How to make a UITextField move up when keyboard is present http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present NO void textFieldDidBeginEditing UITextField sender if sender isEqual mailTf move the main view so that the keyboard does not hide it. if self.view.frame.origin.y 0 self setViewMovedUp YES ..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone the data at various points in a real application it wouldn't make sense to print such values. int main int argc const char argv NSAutoreleasePool pool NSAutoreleasePool alloc init NSString key @ my password..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone improve this question In 3.0 there's now an easier way hook into the new motion events. The main trick is that you need to have some UIView not UIViewController that you want as firstResponder to receive..
http://stackoverflow.com/questions/158914/cropping-a-uiimage all of this in a background thread. I know there are portions of UIKit that are restricted to the main thread. I was assuming hoping that drawing to an offscreen view wasn't one of these. Am I wrong Oh how..
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk the Project which will be at the top of that view. The project configuration will appear in the main editor panel select Build Settings at the top and below will be the 'Architecture' section. This answer..
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 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.. this is your most recent build . Apple should auto select it but they didn't think of that in the main window scroll to bottom. The very last line should read lipo for current configuration Debug creating..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app Step B Create a new provisioning profile Start the Mac OS utility program Keychain Access . In its main menu select Keychain Access Certificate Assistant Request a Certificate From a Certificate Authority..... Signing Identity Any iPhone OS Device to iPhone Distribution . Close the Target Info pane. In the main window select the Active Configuration to Distribution . Create a new file from the file template Code..
Want to display a 3D model on the iPhone: how to get started? http://stackoverflow.com/questions/413919/want-to-display-a-3d-model-on-the-iphone-how-to-get-started C Anything about OpenGL or OpenGL ES which the iPhone apparently uses Anything about XCode My main problem is that I don't know where to start All the iPhone books I found seem to be about creating GUI.. started with no knowledge of xcode obj c iphone or mac and got to a working app fairly fast using mainly this . However I should add that I come from a fairly good background in C C and Java. For your particular..
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 these are all working with Ruby on Rails which I am not tied to but it's a place to start. The main requirements I have for my solution are Any changes should be sent in the background without pausing.. I have for my solution are Any changes should be sent in the background without pausing the main thread. It should use as little bandwidth as possible. I have thought about a number of the challenges..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root to work fine. Anyone know the reason I've thought about putting the tab bar controller as the main controller with each of the tabs containing separate navigation controllers. The problem with this is..
CADisplayLink OpenGL rendering breaks UIScrollView behaviour http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour on iPhone iphone opengl es share improve this question It's possible that slow updates on the main thread triggered by the CADisplayLink are what's breaking UIScrollView's scrolling behavior here. Your..
How to programmatically determine iPhone interface orientation? http://stackoverflow.com/questions/634745/how-to-programmatically-determine-iphone-interface-orientation track orientation change events to remember the last portrait landscape orientation or check the main UIView's bounds height and width but that seems kludgey. Is there a property on the device or UIView..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring reboot. i don't know why but ifi_opackets and ifi_ipackets are shown just for lo0 i think its main interface . yes. Then device is connected via WiFi and doesn't use internet if_iobytes values still..
Programmatically lock and unlock iPhone screen http://stackoverflow.com/questions/832940/programmatically-lock-and-unlock-iphone-screen lock and unlock iPhone screen How do I programmatically lock and unlock the main screen i.e. the device itself of an iPhone iphone share improve this question It can be done by..
iPhone: How to load a View using a nib file created with Interface Builder http://stackoverflow.com/questions/863321/iphone-how-to-load-a-view-using-a-nib-file-created-with-interface-builder you file's Owner to MyViewController 4 now connect your file's Owner outlet myViewFromNib to the main view in the nib. 5 Now in MyViewController write the following line NSBundle mainBundle loadNibNamed.. to the main view in the nib. 5 Now in MyViewController write the following line NSBundle mainBundle loadNibNamed @ myViewNib owner self options nil Now as soon as you do that calling your property..
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 Reachability reachabilityWithHostname @ www.google.com Internet is reachable internetReachableFoo.reachableBlock ^ Reachability reach Update the UI on the main thread dispatch_async dispatch_get_main_queue ^ NSLog @ Yayyy we have the interwebs Internet is not reachable internetReachableFoo.unreachableBlock ^ Reachability.. @ www.google.com Internet is reachable internetReachableFoo.reachableBlock ^ Reachability reach Update the UI on the main thread dispatch_async dispatch_get_main_queue ^ NSLog @ Yayyy we have the interwebs Internet is not reachable internetReachableFoo.unreachableBlock ^ Reachability reach Update the UI on the main thread.. ^ NSLog @ Yayyy we have the interwebs Internet is not reachable internetReachableFoo.unreachableBlock ^ Reachability reach Update the UI on the main thread dispatch_async dispatch_get_main_queue ^ NSLog @ Someone broke the internet internetReachableFoo startNotifier METHOD 2 Do it yourself the old way using..
How to make a UITextField move up when keyboard is present http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present YES else if self.view.frame.origin.y 0 self setViewMovedUp NO void textFieldDidBeginEditing UITextField sender if sender isEqual mailTf move the main view so that the keyboard does not hide it. if self.view.frame.origin.y 0 self setViewMovedUp YES method to move the view up down whenever the keyboard is shown..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone The printf calls are only for demonstrating the state of the data at various points in a real application it wouldn't make sense to print such values. int main int argc const char argv NSAutoreleasePool pool NSAutoreleasePool alloc init NSString key @ my password NSString secret @ text to encrypt NSData plain secret dataUsingEncoding..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone this iphone ios accelerometer shake motion detection share improve this question In 3.0 there's now an easier way hook into the new motion events. The main trick is that you need to have some UIView not UIViewController that you want as firstResponder to receive the shake event messages. Here's the code that you can..
http://stackoverflow.com/questions/158914/cropping-a-uiimage other memory that I shouldn't be touching Theory 2 I'm doing all of this in a background thread. I know there are portions of UIKit that are restricted to the main thread. I was assuming hoping that drawing to an offscreen view wasn't one of these. Am I wrong Oh how I miss NSImage's drawInRect fromRect operation fraction method...
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk using folder icon on the left of the navigator sidebar Select the Project which will be at the top of that view. The project configuration will appear in the main editor panel select Build Settings at the top and below will be the 'Architecture' section. This answer is a slightly adapted version of Sherman Lo 's answer Addendum..
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 static 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.. right in the top left area of Xcode4. Select the top item this is your most recent build . Apple should auto select it but they didn't think of that in the main window scroll to bottom. The very last line should read lipo for current configuration Debug creating output file Users blah Library Developer Xcode DerivedData..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app Add Devices and add the devices previously collected. Step B Create a new provisioning profile Start the Mac OS utility program Keychain Access . In its main menu select Keychain Access Certificate Assistant Request a Certificate From a Certificate Authority... The dialog that pops up should aready have your email and.. . Find the section Code Signing . Set the value of Code Signing Identity Any iPhone OS Device to iPhone Distribution . Close the Target Info pane. In the main window select the Active Configuration to Distribution . Create a new file from the file template Code Signing Entitlements . Name it Entitlements.plist . In this..
Want to display a 3D model on the iPhone: how to get started? http://stackoverflow.com/questions/413919/want-to-display-a-3d-model-on-the-iphone-how-to-get-started Studio on Windows. What I do not know Much about Objective C Anything about OpenGL or OpenGL ES which the iPhone apparently uses Anything about XCode My main problem is that I don't know where to start All the iPhone books I found seem to be about creating GUI applications not OpenGL apps. I found an OpenGL book but.. iphone book which has enough information to get started I started with no knowledge of xcode obj c iphone or mac and got to a working app fairly fast using mainly this . However I should add that I come from a fairly good background in C C and Java. For your particular project perhaps take a look at this answer which refers..
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 ObjectiveResource Core Resource and RestfulCoreData . Of course these are all working with Ruby on Rails which I am not tied to but it's a place to start. The main requirements I have for my solution are Any changes should be sent in the background without pausing the main thread. It should use as little bandwidth as possible... I am not tied to but it's a place to start. The main requirements I have for my solution are Any changes should be sent in the background without pausing the main thread. It should use as little bandwidth as possible. I have thought about a number of the challenges Making sure that the object IDs for the different data stores..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root sure why this usage is explicitly prohibited even when it seems to work fine. Anyone know the reason I've thought about putting the tab bar controller as the main controller with each of the tabs containing separate navigation controllers. The problem with this is that each nav controller needs to share a single root view..
CADisplayLink OpenGL rendering breaks UIScrollView behaviour http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour in OpenGL ES view freezes when UIScrollView is dragged on iPhone iphone opengl es share improve this question It's possible that slow updates on the main thread triggered by the CADisplayLink are what's breaking UIScrollView's scrolling behavior here. Your OpenGL ES rendering might be taking long enough for each..
How to programmatically determine iPhone interface orientation? http://stackoverflow.com/questions/634745/how-to-programmatically-determine-iphone-interface-orientation device is returning ambiguous information I suppose I could track orientation change events to remember the last portrait landscape orientation or check the main UIView's bounds height and width but that seems kludgey. Is there a property on the device or UIView that I'm missing iphone cocoa touch share improve this question..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring and ifa_data ifi_ibytes are stored from previous device reboot. i don't know why but ifi_opackets and ifi_ipackets are shown just for lo0 i think its main interface . yes. Then device is connected via WiFi and doesn't use internet if_iobytes values still come because this method provides network bytes exchanges and..
Programmatically lock and unlock iPhone screen http://stackoverflow.com/questions/832940/programmatically-lock-and-unlock-iphone-screen lock and unlock iPhone screen How do I programmatically lock and unlock the main screen i.e. the device itself of an iPhone iphone share improve this question It can be done by caling GSEventLockDevice from your app. This function can be..
iPhone: How to load a View using a nib file created with Interface Builder http://stackoverflow.com/questions/863321/iphone-how-to-load-a-view-using-a-nib-file-created-with-interface-builder file 3 open your nib we'll call it 'myViewNib.xib' in IB set you file's Owner to MyViewController 4 now connect your file's Owner outlet myViewFromNib to the main view in the nib. 5 Now in MyViewController write the following line NSBundle mainBundle loadNibNamed @ myViewNib owner self options nil Now as soon as you do that.. MyViewController 4 now connect your file's Owner outlet myViewFromNib to the main view in the nib. 5 Now in MyViewController write the following line NSBundle mainBundle loadNibNamed @ myViewNib owner self options nil Now as soon as you do that calling your property self.myViewFromNib will give you access to the view from..
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 @ www.google.com Internet is reachable internetReachableFoo.reachableBlock ^ Reachability reach Update the UI on the main thread dispatch_async dispatch_get_main_queue ^ NSLog @ Yayyy we have the interwebs Internet is not reachable internetReachableFoo.unreachableBlock.. internetReachableFoo.reachableBlock ^ Reachability reach Update the UI on the main thread dispatch_async dispatch_get_main_queue ^ NSLog @ Yayyy we have the interwebs Internet is not reachable internetReachableFoo.unreachableBlock ^ Reachability.. interwebs Internet is not reachable internetReachableFoo.unreachableBlock ^ Reachability reach Update the UI on the main thread dispatch_async dispatch_get_main_queue ^ NSLog @ Someone broke the internet internetReachableFoo startNotifier..
How to make a UITextField move up when keyboard is present http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present 0 self setViewMovedUp NO void textFieldDidBeginEditing UITextField sender if sender isEqual mailTf move the main view so that the keyboard does not hide it. if self.view.frame.origin.y 0 self setViewMovedUp YES method to move the view..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone the state of the data at various points in a real application it wouldn't make sense to print such values. int main int argc const char argv NSAutoreleasePool pool NSAutoreleasePool alloc init NSString key @ my password NSString secret..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone motion detection share improve this question In 3.0 there's now an easier way hook into the new motion events. The main trick is that you need to have some UIView not UIViewController that you want as firstResponder to receive the shake event..
http://stackoverflow.com/questions/158914/cropping-a-uiimage Theory 2 I'm doing all of this in a background thread. I know there are portions of UIKit that are restricted to the main thread. I was assuming hoping that drawing to an offscreen view wasn't one of these. Am I wrong Oh how I miss NSImage's..
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk sidebar Select the Project which will be at the top of that view. The project configuration will appear in the main editor panel select Build Settings at the top and below will be the 'Architecture' section. This answer is a slightly adapted..
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 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.. Select the top item this is your most recent build . Apple should auto select it but they didn't think of that in the main window scroll to bottom. The very last line should read lipo for current configuration Debug creating output file Users..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app collected. Step B Create a new provisioning profile Start the Mac OS utility program Keychain Access . In its main menu select Keychain Access Certificate Assistant Request a Certificate From a Certificate Authority... The dialog that.. the value of Code Signing Identity Any iPhone OS Device to iPhone Distribution . Close the Target Info pane. In the main window select the Active Configuration to Distribution . Create a new file from the file template Code Signing Entitlements..
Want to display a 3D model on the iPhone: how to get started? http://stackoverflow.com/questions/413919/want-to-display-a-3d-model-on-the-iphone-how-to-get-started Much about Objective C Anything about OpenGL or OpenGL ES which the iPhone apparently uses Anything about XCode My main problem is that I don't know where to start All the iPhone books I found seem to be about creating GUI applications not.. to get started I started with no knowledge of xcode obj c iphone or mac and got to a working app fairly fast using mainly this . However I should add that I come from a fairly good background in C C and Java. For your particular project perhaps..
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 . Of course these are all working with Ruby on Rails which I am not tied to but it's a place to start. The main requirements I have for my solution are Any changes should be sent in the background without pausing the main thread. It.. The main requirements I have for my solution are Any changes should be sent in the background without pausing the main thread. It should use as little bandwidth as possible. I have thought about a number of the challenges Making sure that..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root even when it seems to work fine. Anyone know the reason I've thought about putting the tab bar controller as the main controller with each of the tabs containing separate navigation controllers. The problem with this is that each nav controller..
CADisplayLink OpenGL rendering breaks UIScrollView behaviour http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour is dragged on iPhone iphone opengl es share improve this question It's possible that slow updates on the main thread triggered by the CADisplayLink are what's breaking UIScrollView's scrolling behavior here. Your OpenGL ES rendering..
How to programmatically determine iPhone interface orientation? http://stackoverflow.com/questions/634745/how-to-programmatically-determine-iphone-interface-orientation I suppose I could track orientation change events to remember the last portrait landscape orientation or check the main UIView's bounds height and width but that seems kludgey. Is there a property on the device or UIView that I'm missing iphone..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring from previous device reboot. i don't know why but ifi_opackets and ifi_ipackets are shown just for lo0 i think its main interface . yes. Then device is connected via WiFi and doesn't use internet if_iobytes values still come because this method..
Programmatically lock and unlock iPhone screen http://stackoverflow.com/questions/832940/programmatically-lock-and-unlock-iphone-screen lock and unlock iPhone screen How do I programmatically lock and unlock the main screen i.e. the device itself of an iPhone iphone share improve this question It can be done by caling GSEventLockDevice..
iPhone: How to load a View using a nib file created with Interface Builder http://stackoverflow.com/questions/863321/iphone-how-to-load-a-view-using-a-nib-file-created-with-interface-builder in IB set you file's Owner to MyViewController 4 now connect your file's Owner outlet myViewFromNib to the main view in the nib. 5 Now in MyViewController write the following line NSBundle mainBundle loadNibNamed @ myViewNib owner self.. Owner outlet myViewFromNib to the main view in the nib. 5 Now in MyViewController write the following line NSBundle mainBundle loadNibNamed @ myViewNib owner self options nil Now as soon as you do that calling your property self.myViewFromNib..
this class is not key value coding-compliant for the key view http://stackoverflow.com/questions/10152872/this-class-is-not-key-value-coding-compliant-for-the-key-view or method the runtime can't find it because it has been renamed and therefore crashes. In your case you have set the Main Interface property of the project to your ViewController.nib. This is a problem because the only nibs that should be used.. property of the project to your ViewController.nib. This is a problem because the only nibs that should be used as Main Interface should have UIWindows in them and the File Owner in that nib should be set to the AppDelegate. The UIWindow in..
How can I upload a photo to a server with the iPhone? http://stackoverflow.com/questions/125306/how-can-i-upload-a-photo-to-a-server-with-the-iphone filePath delegate id delegate doneSelector SEL doneSelector errorSelector SEL errorSelector NSString filePath @end Main #import EPUploader.h #import zlib.h static NSString const BOUNDRY @ 0xKhTmLbOuNdArY static NSString const FORM_FLE_INPUT..
Xcode 5 without Storyboard and ARC http://stackoverflow.com/questions/17234172/xcode-5-without-storyboard-and-arc If you have Already Created Application with storyboard and ARC then STEPS FOR REMOVE STORY BOARD 1 Remove Main.storyboard file from your project. 2 Add new files with xib for your controller if it is not added in compiled sources in.. with xib for your controller if it is not added in compiled sources in build phases then add there manually. 3 Remove Main storyboard file base name from plist . 4 Change appdelegate didFinishLaunchingWithOptions file and add self.window UIWindow..
How to use NSXMLParser to parse parent-child elements that have the same name http://stackoverflow.com/questions/2005448/how-to-use-nsxmlparser-to-parse-parent-child-elements-that-have-the-same-name name Does anyone have some idea how to parse the following xml using event driven model NSXMLParser class Node name Main name Node name Child 1 name Node Node name Child 2 name Node Node I want to collect all three names from this xml file is.. currentName release xmlParser release super dealloc void start NSString xml @ xml version 1.0 encoding UTF 8 Node name Main name Node name Child 1 name Node Node name Child 2 name Node Node xmlParser NSXMLParser alloc initWithData xml dataUsingEncoding.. of running a command line tool that triggers the start method above Document started Current depth 1 Outer name tag Main Current depth 2 Inner name tag Child 1 Current depth 1 Current depth 2 Inner name tag Child 2 Current depth 1 Current depth..
iphone push notification urbanairship http://stackoverflow.com/questions/2393725/iphone-push-notification-urbanairship System.Net using System.Text namespace Examples.System.Net public class WebRequestPostExample public static void Main Create a request using a URL that can receive a post. WebRequest request WebRequest.Create https go.urbanairship.com api..
How Do I write a Timer in Objective-C? http://stackoverflow.com/questions/3519562/how-do-i-write-a-timer-in-objective-c NSDate Output Total time was 0.002027 milliseconds Total time was 0.000002 seconds Total time was 0.000000 minutes Main Timer timer Timer alloc init timer startTimer Do some work timer stopTimer NSLog @ Total time was lf milliseconds timer..
How to enable zoom in UIScrollView http://stackoverflow.com/questions/3657451/how-to-enable-zoom-in-uiscrollview delegate Take a UIScrollView Take a UIImageView which is going to be added on Scrollview Put the scroll view in Main Window Connect the delegates Setup imageView Set max min zoom scale core thing here Implement delegate method to return..
Draw custom Back button on iPhone Navigation Bar http://stackoverflow.com/questions/4260238/draw-custom-back-button-on-iphone-navigation-bar alloc initWithTitle @ Back title autorelease UINavigationItem currentItem UINavigationItem alloc initWithTitle @ Main Title autorelease navigationBar setItems NSArray arrayWithObjects previousItem currentItem nil animated YES To handle when..
Action sheet doesn't display when the MFMailComposeViewController's cancel button is tapped http://stackoverflow.com/questions/4274895/action-sheet-doesnt-display-when-the-mfmailcomposeviewcontrollers-cancel-butto no UIActionSheet appears. In my case the problem was that my app is universal but for some reason there was only one MainWindow.xib and it was larger than the iPhone screen size it was in fact the iPad screen size . The solution is to create.. and it was larger than the iPhone screen size it was in fact the iPad screen size . The solution is to create another MainWindow iPhone.xib with the right dimensions and change the Info.plist entries called Main nib file base iPad and Main nib.. solution is to create another MainWindow iPhone.xib with the right dimensions and change the Info.plist entries called Main nib file base iPad and Main nib file base iPhone so that they point to the right file. Problem solved Hope it helps. share..
How to detect in iOS webapp when switching back to Safari from background? http://stackoverflow.com/questions/4656387/how-to-detect-in-ios-webapp-when-switching-back-to-safari-from-background to Safari on an iPhone html head script type text javascript window.onfocus function alert onfocus script head body Main text body html According http www.quirksmode.org dom events index.html Safari iPhone does not fire the event when the window..
NSURLConnection and grand central dispatch http://stackoverflow.com/questions/5037545/nsurlconnection-and-grand-central-dispatch @end How to use AsyncURLConnection class. AsyncURLConnection request completeBlock errorBlock have to be called from Main Thread because it is required to use asynchronous API with RunLoop. AsyncURLConnection request url completeBlock ^ NSData..
How to invoke iPhone Maps for Directions with Current Location as Start Address http://stackoverflow.com/questions/576768/how-to-invoke-iphone-maps-for-directions-with-current-location-as-start-address this uses an address for the destination. can use lat long too with f f format NSString address @ 123 Main St. New York NY 10001 NSString url NSString stringWithFormat @ http maps.google.com maps saddr f f daddr @ currentLocation.latitude..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample in a file called text.txt. The txt file is pushed to the cloud and made available to all devices. Works perfectly but Main problem What about users who do not use iCloud When I launch my app see code below I check if the user has iCloud enabled...
Cannot find window-based application on XCode http://stackoverflow.com/questions/8005546/cannot-find-window-based-application-on-xcode
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