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iphone Programming Glossary: uikitRetrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage image I get non zero values for the alpha channel. Do I need to translate the co ordinates between UIKit and Core Graphics i.e is the y axis inverted Or have I misunderstood premultiplied alpha values Update.. Update @Nikolai Ruhe's suggestion was key to this. I did not in fact need to translate between UIKit coordinates and Core Graphics coordinates. However after setting the blend mode my alpha values were.. graphics share improve this question Yes CGContexts have their y axis pointing up while in UIKit it points down. See the docs . Edit after reading code You also want to set the blend mode to replace..
How to intercept touches events on a MKMapView or UIWebView objects? http://stackoverflow.com/questions/1049889/how-to-intercept-touches-events-on-a-mkmapview-or-uiwebview-objects to catch touches on a MKMapView object. I subclassed it by creating the following class #import UIKit UIKit.h #import MapKit MapKit.h @interface MapViewWithTouches MKMapView void touchesBegan NSSet touches.. catch touches on a MKMapView object. I subclassed it by creating the following class #import UIKit UIKit.h #import MapKit MapKit.h @interface MapViewWithTouches MKMapView void touchesBegan NSSet touches withEvent..
How to use NSzombie in xcode? [duplicate] http://stackoverflow.com/questions/1211923/how-to-use-nszombie-in-xcode
gcc-4.2 failed with exit code 1 iphone http://stackoverflow.com/questions/1248520/gcc-4-2-failed-with-exit-code-1-iphone that it wasn't declared so I added to my .h file the following under import uikit #import UIKit UIKit.h #define ROUND_SIZE 10 Now it shows that I have an error Command Developer Platforms iPhoneSimulator.platform.. that it wasn't declared so I added to my .h file the following under import uikit #import UIKit UIKit.h #define ROUND_SIZE 10 Now it shows that I have an error Command Developer Platforms iPhoneSimulator.platform..
iOS crash reports: atos not working as expected http://stackoverflow.com/questions/13574933/ios-crash-reports-atos-not-working-as-expected 8 CoreFoundation 0x3b2eed44 CFRunLoopRunInMode 9 GraphicsServices 0x396bc2e6 GSEventRunModal 10 UIKit 0x3452e2f4 UIApplicationMain 11 MYAPP 0x0004934a main 70 12 MYAPP 0x000492fc start 36 The funny thing..
How can I get a writable path on the iPhone? http://stackoverflow.com/questions/1567134/how-can-i-get-a-writable-path-on-the-iphone to have a UIImage in memory and use the UIImageWriteToSavedPhotosAlbum function call defined by UIKit. You have no control over the destination format or compression levels and cannot attach any EXIF in..
http://stackoverflow.com/questions/158914/cropping-a-uiimage 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..
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 like to have an app include a custom font for rendering text load it and then use it with standard UIKit elements like UILabel. Is this possible I found these links http discussions.apple.com thread.jspa messageID..
iphone/ipad: How exactly use NSAttributedString? http://stackoverflow.com/questions/3786528/iphone-ipad-how-exactly-use-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..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell Created by Mike Akers on 11 21 08. Copyright 2008 __MyCompanyName__. All rights reserved. #import UIKit UIKit.h typedef enum CustomCellBackgroundViewPositionTop CustomCellBackgroundViewPositionMiddle CustomCellBackgroundViewPositionBottom.. by Mike Akers on 11 21 08. Copyright 2008 __MyCompanyName__. All rights reserved. #import UIKit UIKit.h typedef enum CustomCellBackgroundViewPositionTop CustomCellBackgroundViewPositionMiddle CustomCellBackgroundViewPositionBottom..
“Warning: iPhone apps should include an armv6 architecture” even with build config set http://stackoverflow.com/questions/4198676/warning-iphone-apps-should-include-an-armv6-architecture-even-with-build-conf
How do I set up a simple delegate to communicate between two view controllers? http://stackoverflow.com/questions/6168919/how-do-i-set-up-a-simple-delegate-to-communicate-between-two-view-controllers controller's header file declare the delegate type and its methods ChildViewController.h #import UIKit UIKit.h 1. Forward declaration of ChildViewControllerDelegate this just declares that a ChildViewControllerDelegate.. header file declare the delegate type and its methods ChildViewController.h #import UIKit UIKit.h 1. Forward declaration of ChildViewControllerDelegate this just declares that a ChildViewControllerDelegate.. declare that it implements the ChildViewControllerDelegate protocol. RootViewController.h #import UIKit UIKit.h #import ChildViewController.h @interface RootViewController UITableViewController ChildViewControllerDelegate..
Objective C HTML escape/unescape http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape as well and even ASCII codes like Ӓ and the like. Is there any methods in Cocoa Touch UIKit to do this iphone html objective c cocoa touch escaping share improve this question This link contains..
http://stackoverflow.com/questions/675433/custom-colors-in-uitabbar implemented this way First make a subclass of UITabBarContoller CustomUITabBarController.h #import UIKit UIKit.h @interface CustomUITabBarController UITabBarController IBOutlet UITabBar tabBar1 @property nonatomic.. this way First make a subclass of UITabBarContoller CustomUITabBarController.h #import UIKit UIKit.h @interface CustomUITabBarController UITabBarController IBOutlet UITabBar tabBar1 @property nonatomic..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample The most important bit which loads the text.txt from the cloud AppDelegate.h iCloudText #import UIKit UIKit.h @class ViewController @class MyTextDocument @interface AppDelegate UIResponder UIApplicationDelegate.. most important bit which loads the text.txt from the cloud AppDelegate.h iCloudText #import UIKit UIKit.h @class ViewController @class MyTextDocument @interface AppDelegate UIResponder UIApplicationDelegate.. length self.documentText length @end THE VIEWCONTROLLER ViewController.h iCloudText #import UIKit UIKit.h @class MyTextDocument @interface ViewController UIViewController UITextViewDelegate IBOutlet..
How do I draw a line on the iPhone? http://stackoverflow.com/questions/856354/how-do-i-draw-a-line-on-the-iphone and would like to draw a line to the phone screen for the purpose of study using Quartz and UIKit. How do I start drawing iphone cocoa touch quartz graphics share improve this question The first..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage mode my alpha values were what I expected CGContextSetBlendMode context kCGBlendModeCopy iphone uikit core graphics quartz graphics share improve this question Yes CGContexts have their y axis pointing..
gcc-4.2 failed with exit code 1 iphone http://stackoverflow.com/questions/1248520/gcc-4-2-failed-with-exit-code-1-iphone an error indicated that it wasn't declared so I added to my .h file the following under import uikit #import UIKit UIKit.h #define ROUND_SIZE 10 Now it shows that I have an error Command Developer Platforms..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage iphone uikit uiimage core graphics rotation share improve this question What about something like static inline..
Custom animation for pushing a UIViewController http://stackoverflow.com/questions/1406037/custom-animation-for-pushing-a-uiviewcontroller a UIViewController I am not able to resize the frame of the view ... am I iphone animation uikit uiviewcontroller uinavigationcontroller share improve this question What you could do is push the..
How to resize a UIPresentationFormSheet? http://stackoverflow.com/questions/2457947/how-to-resize-a-uipresentationformsheet animated TRUE Any thoughts I am using the iPhone SDK 3.2 beta 4 iphone objective c cocoa touch uikit share improve this question You are able to adjust the frame of a modal view after presenting it..
Landscape Mode ONLY for iPhone or iPad http://stackoverflow.com/questions/2647786/landscape-mode-only-for-iphone-or-ipad if I need to edit the plist or have code in addition to the plist iphone objective c cocoa touch uikit ipad share improve this question Code found here Launching in Landscape Mode Applications in iPhone..
Adding view on StatusBar in iPhone http://stackoverflow.com/questions/2833724/adding-view-on-statusbar-in-iphone x 20 I don't want to hide the status bar I only want to add it on top of the status bar. iphone uikit uiapplication share improve this question You can easily accomplish this by creating your own window..
How do I size a UITextView to its content? http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content UITextView it contains expands to hold all lines of text in the notes string. iphone cocoa touch uikit share improve this question There is actually a very easy way to do resizing of the UITextView to..
iphone, dismiss keyboard when touching outside of textfield http://stackoverflow.com/questions/5306240/iphone-dismiss-keyboard-when-touching-outside-of-textfield make the keyboard disappear when the user touches outside of the textfield iphone cocoa touch ios uikit share improve this question You'll need to add an UITapGestureRecogniser and assign it to the view..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height frame doesn't seem to work and the frame is locked in Interface Builder. iphone cocoa touch uikit uipickerview share improve this question It seems obvious that Apple doesn't particularly invite..
How do you add multi-line text to a UIButton? http://stackoverflow.com/questions/604632/how-do-you-add-multi-line-text-to-a-uibutton itself cannot be seen. Is this a bug in UIButton or am I doing something wrong iphone cocoa touch uikit uibutton share improve this question To allow multiple line you can use button.titleLabel.lineBreakMode..
Using HTML and Local Images Within UIWebView http://stackoverflow.com/questions/747407/using-html-and-local-images-within-uiwebview of the image and using that and it still doesn't show up in the web view. Any ideas iphone html uikit uiwebview share improve this question Using relative paths or file paths to refer to images does..
Are there any good UIScrollView Tutorials on the net? http://stackoverflow.com/questions/820557/are-there-any-good-uiscrollview-tutorials-on-the-net Tutorials on the net Any good links are highly appreciated This goes to community wiki. iphone uikit uiscrollview share improve this question Some good samples with the basic functionalities covered..
Changing the background color of a UIAlertView? http://stackoverflow.com/questions/883208/changing-the-background-color-of-a-uialertview my UIAlertView but this doesn't appear to have a color attribute. iphone objective c cocoa touch uikit uialertview share improve this question Background of AlertView is an image And you can change this..
How can I get a precise time, for example in milliseconds in Objective-C? http://stackoverflow.com/questions/889380/how-can-i-get-a-precise-time-for-example-in-milliseconds-in-objective-c I want to calculate the speed of scrolling in an UIScrollView. iphone objective c cocoa touch uikit share improve this question NSDate and the timeIntervalSince methods will return a NSTimeInterval..
View Controllers: How to switch between views programmatically? http://stackoverflow.com/questions/910994/view-controllers-how-to-switch-between-views-programmatically cleverness of UITabBarController now and I have to figure out how to replicate that right iphone uikit uiviewcontroller uitabbarcontroller share improve this question You can begin from the simplest..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud do this. If you have any insight into the caching algorithm please post it here. iphone caching uikit uiimageview imagenamed share improve this question tldr ImagedNamed is fine. It handles memory well...
Is there any ready-made calendar control for iPhone apps? http://stackoverflow.com/questions/997779/is-there-any-ready-made-calendar-control-for-iphone-apps ready since this is a departure on the original project plans . iphone cocoa touch interface uikit calendar share improve this question Yes. These are the option I am aware of EDIT as of May 6 2010..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage I expect. For a completely black transparent area of the image I get non zero values for the alpha channel. Do I need to translate the co ordinates between UIKit and Core Graphics i.e is the y axis inverted Or have I misunderstood premultiplied alpha values Update @Nikolai Ruhe's suggestion was key to this. I did not in.. inverted Or have I misunderstood premultiplied alpha values Update @Nikolai Ruhe's suggestion was key to this. I did not in fact need to translate between UIKit coordinates and Core Graphics coordinates. However after setting the blend mode my alpha values were what I expected CGContextSetBlendMode context kCGBlendModeCopy.. context kCGBlendModeCopy iphone uikit core graphics quartz graphics share improve this question Yes CGContexts have their y axis pointing up while in UIKit it points down. See the docs . Edit after reading code You also want to set the blend mode to replace before drawing the image since you want the image's alpha..
How to intercept touches events on a MKMapView or UIWebView objects? http://stackoverflow.com/questions/1049889/how-to-intercept-touches-events-on-a-mkmapview-or-uiwebview-objects UIWebView objects I'm not sure what i'm doing wrong but I try to catch touches on a MKMapView object. I subclassed it by creating the following class #import UIKit UIKit.h #import MapKit MapKit.h @interface MapViewWithTouches MKMapView void touchesBegan NSSet touches withEvent UIEvent event @end And the implementation #import.. objects I'm not sure what i'm doing wrong but I try to catch touches on a MKMapView object. I subclassed it by creating the following class #import UIKit UIKit.h #import MapKit MapKit.h @interface MapViewWithTouches MKMapView void touchesBegan NSSet touches withEvent UIEvent event @end And the implementation #import MapViewWithTouches.h..
How to use NSzombie in xcode? [duplicate] http://stackoverflow.com/questions/1211923/how-to-use-nszombie-in-xcode
gcc-4.2 failed with exit code 1 iphone http://stackoverflow.com/questions/1248520/gcc-4-2-failed-with-exit-code-1-iphone c minx miny midx miny ROUND_SIZE This gave an error indicated that it wasn't declared so I added to my .h file the following under import uikit #import UIKit UIKit.h #define ROUND_SIZE 10 Now it shows that I have an error Command Developer Platforms iPhoneSimulator.platform Developer usr bin gcc 4.2 failed with exit.. c minx miny midx miny ROUND_SIZE This gave an error indicated that it wasn't declared so I added to my .h file the following under import uikit #import UIKit UIKit.h #define ROUND_SIZE 10 Now it shows that I have an error Command Developer Platforms iPhoneSimulator.platform Developer usr bin gcc 4.2 failed with exit code 1..
iOS crash reports: atos not working as expected http://stackoverflow.com/questions/13574933/ios-crash-reports-atos-not-working-as-expected 7 CoreFoundation 0x3b2eeeb8 CFRunLoopRunSpecific 8 CoreFoundation 0x3b2eed44 CFRunLoopRunInMode 9 GraphicsServices 0x396bc2e6 GSEventRunModal 10 UIKit 0x3452e2f4 UIApplicationMain 11 MYAPP 0x0004934a main 70 12 MYAPP 0x000492fc start 36 The funny thing is when I use atos to lookup the line of code that corresponds..
How can I get a writable path on the iPhone? http://stackoverflow.com/questions/1567134/how-can-i-get-a-writable-path-on-the-iphone
http://stackoverflow.com/questions/158914/cropping-a-uiimage instead attempting to draw over 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..
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 I embed a custom font in an iPhone application I would like to have an app include a custom font for rendering text load it and then use it with standard UIKit elements like UILabel. Is this possible I found these links http discussions.apple.com thread.jspa messageID 8304744 http forums.macrumors.com showthread.php t..
iphone/ipad: How exactly use NSAttributedString? http://stackoverflow.com/questions/3786528/iphone-ipad-how-exactly-use-nsattributedstring . It is a subclass of UILabel 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..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell probably be very helpful for you CustomCellBackgroundView.h Created by Mike Akers on 11 21 08. Copyright 2008 __MyCompanyName__. All rights reserved. #import UIKit UIKit.h typedef enum CustomCellBackgroundViewPositionTop CustomCellBackgroundViewPositionMiddle CustomCellBackgroundViewPositionBottom CustomCellBackgroundViewPositionSingle.. be very helpful for you CustomCellBackgroundView.h Created by Mike Akers on 11 21 08. Copyright 2008 __MyCompanyName__. All rights reserved. #import UIKit UIKit.h typedef enum CustomCellBackgroundViewPositionTop CustomCellBackgroundViewPositionMiddle CustomCellBackgroundViewPositionBottom CustomCellBackgroundViewPositionSingle..
“Warning: iPhone apps should include an armv6 architecture” even with build config set http://stackoverflow.com/questions/4198676/warning-iphone-apps-should-include-an-armv6-architecture-even-with-build-conf
How do I set up a simple delegate to communicate between two view controllers? http://stackoverflow.com/questions/6168919/how-do-i-set-up-a-simple-delegate-to-communicate-between-two-view-controllers slider back to the parent via a delegate. In the child view controller's header file declare the delegate type and its methods ChildViewController.h #import UIKit UIKit.h 1. Forward declaration of ChildViewControllerDelegate this just declares that a ChildViewControllerDelegate type exists so that we can use it later. @protocol.. back to the parent via a delegate. In the child view controller's header file declare the delegate type and its methods ChildViewController.h #import UIKit UIKit.h 1. Forward declaration of ChildViewControllerDelegate this just declares that a ChildViewControllerDelegate type exists so that we can use it later. @protocol.. @end In the parent view controller's header file declare that it implements the ChildViewControllerDelegate protocol. RootViewController.h #import UIKit UIKit.h #import ChildViewController.h @interface RootViewController UITableViewController ChildViewControllerDelegate @end In the parent view controller's implementation..
Objective C HTML escape/unescape http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape returns span Foo span Hopefully unescaping all other HTML entities as well and even ASCII codes like Ӓ and the like. Is there any methods in Cocoa Touch UIKit to do this iphone html objective c cocoa touch escaping share improve this question This link contains the solution below. Cocoa CF has the CFXMLCreateStringByUnescapingEntities..
http://stackoverflow.com/questions/675433/custom-colors-in-uitabbar I found an answer to this at Silent Mac Design . I implemented this way First make a subclass of UITabBarContoller CustomUITabBarController.h #import UIKit UIKit.h @interface CustomUITabBarController UITabBarController IBOutlet UITabBar tabBar1 @property nonatomic retain UITabBar tabBar1 @end CustomUITabBarController.m.. I found an answer to this at Silent Mac Design . I implemented this way First make a subclass of UITabBarContoller CustomUITabBarController.h #import UIKit UIKit.h @interface CustomUITabBarController UITabBarController IBOutlet UITabBar tabBar1 @property nonatomic retain UITabBar tabBar1 @end CustomUITabBarController.m #import..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample to extract the main question and posted it here . 4 OVERVIEW The most important bit which loads the text.txt from the cloud AppDelegate.h iCloudText #import UIKit UIKit.h @class ViewController @class MyTextDocument @interface AppDelegate UIResponder UIApplicationDelegate NSMetadataQuery _query @property strong nonatomic UIWindow.. the main question and posted it here . 4 OVERVIEW The most important bit which loads the text.txt from the cloud AppDelegate.h iCloudText #import UIKit UIKit.h @class ViewController @class MyTextDocument @interface AppDelegate UIResponder UIApplicationDelegate NSMetadataQuery _query @property strong nonatomic UIWindow.. return NSData dataWithBytes self.documentText UTF8String length self.documentText length @end THE VIEWCONTROLLER ViewController.h iCloudText #import UIKit UIKit.h @class MyTextDocument @interface ViewController UIViewController UITextViewDelegate IBOutlet UITextView textView @property nonatomic retain UITextView textView..
How do I draw a line on the iPhone? http://stackoverflow.com/questions/856354/how-do-i-draw-a-line-on-the-iphone I draw a line on the iPhone I am a beginner at iPhone programming and would like to draw a line to the phone screen for the purpose of study using Quartz and UIKit. How do I start drawing iphone cocoa touch quartz graphics share improve this question The first step is to define a subclass of UIView to create a space to..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage Core Graphics coordinates. However after setting the blend mode my alpha values were what I expected CGContextSetBlendMode context kCGBlendModeCopy iphone uikit core graphics quartz graphics share improve this question Yes CGContexts have their y axis pointing up while in UIKit it points down. See the docs . Edit after..
gcc-4.2 failed with exit code 1 iphone http://stackoverflow.com/questions/1248520/gcc-4-2-failed-with-exit-code-1-iphone c minx miny midx miny ROUND_SIZE This gave an error indicated that it wasn't declared so I added to my .h file the following under import uikit #import UIKit UIKit.h #define ROUND_SIZE 10 Now it shows that I have an error Command Developer Platforms iPhoneSimulator.platform Developer usr bin gcc 4.2 failed..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees ref CGBitmapContextCreateImage bitmap UIImage newImage UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage iphone uikit uiimage core graphics rotation share improve this question What about something like static inline double radians double degrees return degrees M_PI 180 UIImage..
Custom animation for pushing a UIViewController http://stackoverflow.com/questions/1406037/custom-animation-for-pushing-a-uiviewcontroller updates the transformation of the view. Unfortunately when pushing a UIViewController I am not able to resize the frame of the view ... am I iphone animation uikit uiviewcontroller uinavigationcontroller share improve this question What you could do is push the next view controller but don't animate it like so self.navigationController..
How to resize a UIPresentationFormSheet? http://stackoverflow.com/questions/2457947/how-to-resize-a-uipresentationformsheet self presentModalViewController composeTweetController animated TRUE Any thoughts I am using the iPhone SDK 3.2 beta 4 iphone objective c cocoa touch uikit share improve this question You are able to adjust the frame of a modal view after presenting it Tested in iOS 5.1 6.1 using XCode 4.62 MyModalViewController..
Landscape Mode ONLY for iPhone or iPad http://stackoverflow.com/questions/2647786/landscape-mode-only-for-iphone-or-ipad an application that doesn't use Portrait mode. I am not sure if I need to edit the plist or have code in addition to the plist iphone objective c cocoa touch uikit ipad share improve this question Code found here Launching in Landscape Mode Applications in iPhone OS normally launch in portrait mode to match the orientation..
Adding view on StatusBar in iPhone http://stackoverflow.com/questions/2833724/adding-view-on-statusbar-in-iphone Is it possible to add a UIView on the staus bar of size 320 x 20 I don't want to hide the status bar I only want to add it on top of the status bar. iphone uikit uiapplication share improve this question You can easily accomplish this by creating your own window above the existing status bar. Just create a simple subclass..
How do I size a UITextView to its content? http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content events in the Calendar application note how the cell and the UITextView it contains expands to hold all lines of text in the notes string. iphone cocoa touch uikit share improve this question There is actually a very easy way to do resizing of the UITextView to its correct height of the content. It can be done using the..
iphone, dismiss keyboard when touching outside of textfield http://stackoverflow.com/questions/5306240/iphone-dismiss-keyboard-when-touching-outside-of-textfield when touching outside of textfield I'm wondering how to make the keyboard disappear when the user touches outside of the textfield iphone cocoa touch ios uikit share improve this question You'll need to add an UITapGestureRecogniser and assign it to the view and then call resign first responder on the textfield on..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height seem to have shorter PickerViews but setting a smaller frame doesn't seem to work and the frame is locked in Interface Builder. iphone cocoa touch uikit uipickerview share improve this question It seems obvious that Apple doesn't particularly invite mucking with the default height of the UIPickerView but I have..
How do you add multi-line text to a UIButton? http://stackoverflow.com/questions/604632/how-do-you-add-multi-line-text-to-a-uibutton button shows that the UILabel has been added but the text itself cannot be seen. Is this a bug in UIButton or am I doing something wrong iphone cocoa touch uikit uibutton share improve this question To allow multiple line you can use button.titleLabel.lineBreakMode UILineBreakModeWordWrap you'll probably also want to..
Using HTML and Local Images Within UIWebView http://stackoverflow.com/questions/747407/using-html-and-local-images-within-uiwebview the bundle. I've tried using NSBundle to get the full path of the image and using that and it still doesn't show up in the web view. Any ideas iphone html uikit uiwebview share improve this question Using relative paths or file paths to refer to images does not work with UIWebView. Instead you have to load the HTML..
Are there any good UIScrollView Tutorials on the net? http://stackoverflow.com/questions/820557/are-there-any-good-uiscrollview-tutorials-on-the-net there any good UIScrollView Tutorials on the net Any good links are highly appreciated This goes to community wiki. iphone uikit uiscrollview share improve this question Some good samples with the basic functionalities covered very simple uiscrollview demo Scrolling UiScrollViewTutorial..
Changing the background color of a UIAlertView? http://stackoverflow.com/questions/883208/changing-the-background-color-of-a-uialertview of a UIAlertView I want to change the background color of my UIAlertView but this doesn't appear to have a color attribute. iphone objective c cocoa touch uikit uialertview share improve this question Background of AlertView is an image And you can change this image UIAlertView theAlert UIAlertView alloc initWithTitle..
How can I get a precise time, for example in milliseconds in Objective-C? http://stackoverflow.com/questions/889380/how-can-i-get-a-precise-time-for-example-in-milliseconds-in-objective-c calculate some delays between method calls. More specifically I want to calculate the speed of scrolling in an UIScrollView. iphone objective c cocoa touch uikit share improve this question NSDate and the timeIntervalSince methods will return a NSTimeInterval which is a double with sub millisecond accuracy. NSTimeInterval..
View Controllers: How to switch between views programmatically? http://stackoverflow.com/questions/910994/view-controllers-how-to-switch-between-views-programmatically an viewDidLoad. But that's it. So all signs stand for the cleverness of UITabBarController now and I have to figure out how to replicate that right iphone uikit uiviewcontroller uitabbarcontroller share improve this question You can begin from the simplest removeFromSuperview insertSubview and add code to it little..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud It seems unlikely that Apple would not do this. If you have any insight into the caching algorithm please post it here. iphone caching uikit uiimageview imagenamed share improve this question tldr ImagedNamed is fine. It handles memory well. Use it and stop worrying. Edit Nov 2012 Note that this..
Is there any ready-made calendar control for iPhone apps? http://stackoverflow.com/questions/997779/is-there-any-ready-made-calendar-control-for-iphone-apps used I could write one myself but I'd rather pick up something ready since this is a departure on the original project plans . iphone cocoa touch interface uikit calendar share improve this question Yes. These are the option I am aware of EDIT as of May 6 2010 1 GCCalendar 2 http github.com klazuka Kal 3 http code.google.com..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage area of the image I get non zero values for the alpha channel. Do I need to translate the co ordinates between UIKit and Core Graphics i.e is the y axis inverted Or have I misunderstood premultiplied alpha values Update @Nikolai Ruhe's suggestion.. alpha values Update @Nikolai Ruhe's suggestion was key to this. I did not in fact need to translate between UIKit coordinates and Core Graphics coordinates. However after setting the blend mode my alpha values were what I expected CGContextSetBlendMode.. core graphics quartz graphics share improve this question Yes CGContexts have their y axis pointing up while in UIKit it points down. See the docs . Edit after reading code You also want to set the blend mode to replace before drawing the..
How to intercept touches events on a MKMapView or UIWebView objects? http://stackoverflow.com/questions/1049889/how-to-intercept-touches-events-on-a-mkmapview-or-uiwebview-objects doing wrong but I try to catch touches on a MKMapView object. I subclassed it by creating the following class #import UIKit UIKit.h #import MapKit MapKit.h @interface MapViewWithTouches MKMapView void touchesBegan NSSet touches withEvent UIEvent.. wrong but I try to catch touches on a MKMapView object. I subclassed it by creating the following class #import UIKit UIKit.h #import MapKit MapKit.h @interface MapViewWithTouches MKMapView void touchesBegan NSSet touches withEvent UIEvent event..
How to use NSzombie in xcode? [duplicate] http://stackoverflow.com/questions/1211923/how-to-use-nszombie-in-xcode
iOS crash reports: atos not working as expected http://stackoverflow.com/questions/13574933/ios-crash-reports-atos-not-working-as-expected CFRunLoopRunSpecific 8 CoreFoundation 0x3b2eed44 CFRunLoopRunInMode 9 GraphicsServices 0x396bc2e6 GSEventRunModal 10 UIKit 0x3452e2f4 UIApplicationMain 11 MYAPP 0x0004934a main 70 12 MYAPP 0x000492fc start 36 The funny thing is when I use atos..
How can I get a writable path on the iPhone? http://stackoverflow.com/questions/1567134/how-can-i-get-a-writable-path-on-the-iphone this instead you have to have a UIImage in memory and use the UIImageWriteToSavedPhotosAlbum function call defined by UIKit. You have no control over the destination format or compression levels and cannot attach any EXIF in this way. share improve..
http://stackoverflow.com/questions/158914/cropping-a-uiimage 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..
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 I would like to have an app include a custom font for rendering text load it and then use it with standard UIKit elements like UILabel. Is this possible I found these links http discussions.apple.com thread.jspa messageID 8304744 http..
iphone/ipad: How exactly use NSAttributedString? http://stackoverflow.com/questions/3786528/iphone-ipad-how-exactly-use-nsattributedstring 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..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell Created by Mike Akers on 11 21 08. Copyright 2008 __MyCompanyName__. All rights reserved. #import UIKit UIKit.h typedef enum CustomCellBackgroundViewPositionTop CustomCellBackgroundViewPositionMiddle CustomCellBackgroundViewPositionBottom.. Created by Mike Akers on 11 21 08. Copyright 2008 __MyCompanyName__. All rights reserved. #import UIKit UIKit.h typedef enum CustomCellBackgroundViewPositionTop CustomCellBackgroundViewPositionMiddle CustomCellBackgroundViewPositionBottom..
“Warning: iPhone apps should include an armv6 architecture” even with build config set http://stackoverflow.com/questions/4198676/warning-iphone-apps-should-include-an-armv6-architecture-even-with-build-conf
How do I set up a simple delegate to communicate between two view controllers? http://stackoverflow.com/questions/6168919/how-do-i-set-up-a-simple-delegate-to-communicate-between-two-view-controllers In the child view controller's header file declare the delegate type and its methods ChildViewController.h #import UIKit UIKit.h 1. Forward declaration of ChildViewControllerDelegate this just declares that a ChildViewControllerDelegate type.. the child view controller's header file declare the delegate type and its methods ChildViewController.h #import UIKit UIKit.h 1. Forward declaration of ChildViewControllerDelegate this just declares that a ChildViewControllerDelegate type exists.. header file declare that it implements the ChildViewControllerDelegate protocol. RootViewController.h #import UIKit UIKit.h #import ChildViewController.h @interface RootViewController UITableViewController ChildViewControllerDelegate @end..
Objective C HTML escape/unescape http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape all other HTML entities as well and even ASCII codes like Ӓ and the like. Is there any methods in Cocoa Touch UIKit to do this iphone html objective c cocoa touch escaping share improve this question This link contains the solution..
http://stackoverflow.com/questions/675433/custom-colors-in-uitabbar Mac Design . I implemented this way First make a subclass of UITabBarContoller CustomUITabBarController.h #import UIKit UIKit.h @interface CustomUITabBarController UITabBarController IBOutlet UITabBar tabBar1 @property nonatomic retain UITabBar.. Design . I implemented this way First make a subclass of UITabBarContoller CustomUITabBarController.h #import UIKit UIKit.h @interface CustomUITabBarController UITabBarController IBOutlet UITabBar tabBar1 @property nonatomic retain UITabBar tabBar1..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample it here . 4 OVERVIEW The most important bit which loads the text.txt from the cloud AppDelegate.h iCloudText #import UIKit UIKit.h @class ViewController @class MyTextDocument @interface AppDelegate UIResponder UIApplicationDelegate NSMetadataQuery.. . 4 OVERVIEW The most important bit which loads the text.txt from the cloud AppDelegate.h iCloudText #import UIKit UIKit.h @class ViewController @class MyTextDocument @interface AppDelegate UIResponder UIApplicationDelegate NSMetadataQuery _query.. UTF8String length self.documentText length @end THE VIEWCONTROLLER ViewController.h iCloudText #import UIKit UIKit.h @class MyTextDocument @interface ViewController UIViewController UITextViewDelegate IBOutlet UITextView textView..
How do I draw a line on the iPhone? http://stackoverflow.com/questions/856354/how-do-i-draw-a-line-on-the-iphone at iPhone programming and would like to draw a line to the phone screen for the purpose of study using Quartz and UIKit. How do I start drawing iphone cocoa touch quartz graphics share improve this question The first step is to define..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage setting the blend mode my alpha values were what I expected CGContextSetBlendMode context kCGBlendModeCopy iphone uikit core graphics quartz graphics share improve this question Yes CGContexts have their y axis pointing up while in UIKit..
gcc-4.2 failed with exit code 1 iphone http://stackoverflow.com/questions/1248520/gcc-4-2-failed-with-exit-code-1-iphone ROUND_SIZE This gave an error indicated that it wasn't declared so I added to my .h file the following under import uikit #import UIKit UIKit.h #define ROUND_SIZE 10 Now it shows that I have an error Command Developer Platforms iPhoneSimulator.platform..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees UIImage newImage UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage iphone uikit uiimage core graphics rotation share improve this question What about something like static inline double radians double..
Custom animation for pushing a UIViewController http://stackoverflow.com/questions/1406037/custom-animation-for-pushing-a-uiviewcontroller Unfortunately when pushing a UIViewController I am not able to resize the frame of the view ... am I iphone animation uikit uiviewcontroller uinavigationcontroller share improve this question What you could do is push the next view controller..
How to resize a UIPresentationFormSheet? http://stackoverflow.com/questions/2457947/how-to-resize-a-uipresentationformsheet composeTweetController animated TRUE Any thoughts I am using the iPhone SDK 3.2 beta 4 iphone objective c cocoa touch uikit share improve this question You are able to adjust the frame of a modal view after presenting it Tested in iOS 5.1 6.1..
Landscape Mode ONLY for iPhone or iPad http://stackoverflow.com/questions/2647786/landscape-mode-only-for-iphone-or-ipad mode. I am not sure if I need to edit the plist or have code in addition to the plist iphone objective c cocoa touch uikit ipad share improve this question Code found here Launching in Landscape Mode Applications in iPhone OS normally launch..
Adding view on StatusBar in iPhone http://stackoverflow.com/questions/2833724/adding-view-on-statusbar-in-iphone staus bar of size 320 x 20 I don't want to hide the status bar I only want to add it on top of the status bar. iphone uikit uiapplication share improve this question You can easily accomplish this by creating your own window above the existing..
What are block-based animation methods in iPhone OS 4.0? http://stackoverflow.com/questions/3126833/what-are-block-based-animation-methods-in-iphone-os-4-0 the block based animation methods instead. You can find it here http developer.apple.com iphone library documentation uikit reference UIView_Class UIView UIView.html# apple_ref occ clm UIView commitAnimations My question is what are block based..
How do I size a UITextView to its content? http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content how the cell and the UITextView it contains expands to hold all lines of text in the notes string. iphone cocoa touch uikit share improve this question There is actually a very easy way to do resizing of the UITextView to its correct height..
iphone, dismiss keyboard when touching outside of textfield http://stackoverflow.com/questions/5306240/iphone-dismiss-keyboard-when-touching-outside-of-textfield wondering how to make the keyboard disappear when the user touches outside of the textfield iphone cocoa touch ios uikit share improve this question You'll need to add an UITapGestureRecogniser and assign it to the view and then call resign..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height but setting a smaller frame doesn't seem to work and the frame is locked in Interface Builder. iphone cocoa touch uikit uipickerview share improve this question It seems obvious that Apple doesn't particularly invite mucking with the default..
How do you add multi-line text to a UIButton? http://stackoverflow.com/questions/604632/how-do-you-add-multi-line-text-to-a-uibutton added but the text itself cannot be seen. Is this a bug in UIButton or am I doing something wrong iphone cocoa touch uikit uibutton share improve this question To allow multiple line you can use button.titleLabel.lineBreakMode UILineBreakModeWordWrap..
Using HTML and Local Images Within UIWebView http://stackoverflow.com/questions/747407/using-html-and-local-images-within-uiwebview to get the full path of the image and using that and it still doesn't show up in the web view. Any ideas iphone html uikit uiwebview share improve this question Using relative paths or file paths to refer to images does not work with UIWebView...
Are there any good UIScrollView Tutorials on the net? http://stackoverflow.com/questions/820557/are-there-any-good-uiscrollview-tutorials-on-the-net any good UIScrollView Tutorials on the net Any good links are highly appreciated This goes to community wiki. iphone uikit uiscrollview share improve this question Some good samples with the basic functionalities covered very simple uiscrollview..
Changing the background color of a UIAlertView? http://stackoverflow.com/questions/883208/changing-the-background-color-of-a-uialertview background color of my UIAlertView but this doesn't appear to have a color attribute. iphone objective c cocoa touch uikit uialertview share improve this question Background of AlertView is an image And you can change this image UIAlertView..
How can I get a precise time, for example in milliseconds in Objective-C? http://stackoverflow.com/questions/889380/how-can-i-get-a-precise-time-for-example-in-milliseconds-in-objective-c More specifically I want to calculate the speed of scrolling in an UIScrollView. iphone objective c cocoa touch uikit share improve this question NSDate and the timeIntervalSince methods will return a NSTimeInterval which is a double..
View Controllers: How to switch between views programmatically? http://stackoverflow.com/questions/910994/view-controllers-how-to-switch-between-views-programmatically signs stand for the cleverness of UITabBarController now and I have to figure out how to replicate that right iphone uikit uiviewcontroller uitabbarcontroller share improve this question You can begin from the simplest removeFromSuperview..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud that Apple would not do this. If you have any insight into the caching algorithm please post it here. iphone caching uikit uiimageview imagenamed share improve this question tldr ImagedNamed is fine. It handles memory well. Use it and stop..
Is there any ready-made calendar control for iPhone apps? http://stackoverflow.com/questions/997779/is-there-any-ready-made-calendar-control-for-iphone-apps rather pick up something ready since this is a departure on the original project plans . iphone cocoa touch interface uikit calendar share improve this question Yes. These are the option I am aware of EDIT as of May 6 2010 1 GCCalendar 2 http..
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