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2014/10/15 ¤U¤È 10:14:38
iphone Programming Glossary: subclassedHow 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 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..
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 you just learning about Core Graphics here is the simplest thing that could possibly work. In your subclassed UIView void drawRect CGRect rect CGContextRef context UIGraphicsGetCurrentContext CGContextSetFillColor..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how this question Update for iOS 7 Apple docs for UIActionSheet UIActionSheet is not designed to be subclassed nor should you add views to its hierarchy I recommend against trying to customize the contents of an..
iOS 6: How do I restrict some views to portrait and allow others to rotate? http://stackoverflow.com/questions/12630359/ios-6-how-do-i-restrict-some-views-to-portrait-and-allow-others-to-rotate returned by the supportedInterfaceOrientations method of the top most full screen controller. So I subclassed UINavigationController gave my MainNavigationController a boolean property landscapeOK and used this..
How to get the RGB values for a pixel on an image on the iphone http://stackoverflow.com/questions/144250/how-to-get-the-rgb-values-for-a-pixel-on-an-image-on-the-iphone to correspond to a pixel typedef struct RGBPixel byte red byte green byte blue RGBPixel Step 3. I subclassed UIImageView and declared with corresponding synthesized properties Reference to Quartz CGImage for receiver..
Observing pinch multi-touch gestures in a UITableView http://stackoverflow.com/questions/2003201/observing-pinch-multi-touch-gestures-in-a-uitableview be a classic problem. In my case I wanted to intercept some events over a UIWebView which can't be subclassed etc etc. I've found that the best way to do it is to intercept the events using the UIWindow EventInterceptWindow.h..
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 be a pain. How should I implement this the Right Way ^1 The tab bar controller needs to be subclassed so that the tab bar controller's navigation item at that level stays in sync with the selected tab's..
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 intercept touches events on a MKMapView or 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..
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 and it works like a charm Final final update For those of you just learning about Core Graphics here is the simplest thing that could possibly work. In your subclassed UIView void drawRect CGRect rect CGContextRef context UIGraphicsGetCurrentContext CGContextSetFillColor context CGColorGetComponents UIColor colorWithRed 0.5 green..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how this can be implemented iphone uipickerview share improve this question Update for iOS 7 Apple docs for UIActionSheet UIActionSheet is not designed to be subclassed nor should you add views to its hierarchy I recommend against trying to customize the contents of an ActionSheet as it can lead to serious invalid context errors..
iOS 6: How do I restrict some views to portrait and allow others to rotate? http://stackoverflow.com/questions/12630359/ios-6-how-do-i-restrict-some-views-to-portrait-and-allow-others-to-rotate method with the value returned by the supportedInterfaceOrientations method of the top most full screen controller. So I subclassed UINavigationController gave my MainNavigationController a boolean property landscapeOK and used this to return the allowable orientations in supportedInterfaceOrientations..
How to get the RGB values for a pixel on an image on the iphone http://stackoverflow.com/questions/144250/how-to-get-the-rgb-values-for-a-pixel-on-an-image-on-the-iphone byte typedef unsigned char byte Step 2. I declared a struct to correspond to a pixel typedef struct RGBPixel byte red byte green byte blue RGBPixel Step 3. I subclassed UIImageView and declared with corresponding synthesized properties Reference to Quartz CGImage for receiver self CFDataRef bitmapData Buffer holding raw pixel data..
Observing pinch multi-touch gestures in a UITableView http://stackoverflow.com/questions/2003201/observing-pinch-multi-touch-gestures-in-a-uitableview touch pinch share improve this question This seems to be a classic problem. In my case I wanted to intercept some events over a UIWebView which can't be subclassed etc etc. I've found that the best way to do it is to intercept the events using the UIWindow EventInterceptWindow.h @protocol EventInterceptWindowDelegate BOOL..
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 the book keeping when selecting a different account would probably be a pain. How should I implement this the Right Way ^1 The tab bar controller needs to be subclassed so that the tab bar controller's navigation item at that level stays in sync with the selected tab's navigation item and the individual tab's table controller's..
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 MKMapView or 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..
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 update For those of you just learning about Core Graphics here is the simplest thing that could possibly work. In your subclassed UIView void drawRect CGRect rect CGContextRef context UIGraphicsGetCurrentContext CGContextSetFillColor context CGColorGetComponents..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how share improve this question Update for iOS 7 Apple docs for UIActionSheet UIActionSheet is not designed to be subclassed nor should you add views to its hierarchy I recommend against trying to customize the contents of an ActionSheet as it can..
iOS 6: How do I restrict some views to portrait and allow others to rotate? http://stackoverflow.com/questions/12630359/ios-6-how-do-i-restrict-some-views-to-portrait-and-allow-others-to-rotate with the value returned by the supportedInterfaceOrientations method of the top most full screen controller. So I subclassed UINavigationController gave my MainNavigationController a boolean property landscapeOK and used this to return the allowable..
Pixel Width of the text in a UILabel http://stackoverflow.com/questions/1340667/pixel-width-of-the-text-in-a-uilabel Width of the text in a UILabel I need to draw a UILabel striked through. Therefore I subclassed UILabel and implemented it as follows @implementation UIStrikedLabel void drawTextInRect CGRect rect super drawTextInRect..
How to get the RGB values for a pixel on an image on the iphone http://stackoverflow.com/questions/144250/how-to-get-the-rgb-values-for-a-pixel-on-an-image-on-the-iphone I declared a struct to correspond to a pixel typedef struct RGBPixel byte red byte green byte blue RGBPixel Step 3. I subclassed UIImageView and declared with corresponding synthesized properties Reference to Quartz CGImage for receiver self CFDataRef..
Get notified when UITableView has finished asking for data? http://stackoverflow.com/questions/1483581/get-notified-when-uitableview-has-finished-asking-for-data has finish reload its data. So when the second NSLog is fired the table view has actually finish asking for data. I've subclassed UITableView to send methods to the delegate before and after reloadData. It works like a charm. share improve this answer..
Detecting UITableView scrolling http://stackoverflow.com/questions/1587855/detecting-uitableview-scrolling UITableView scrolling I've subclassed UITableView as KRTableView and implemented the four touch based methods touchesBegan touchesEnded touchesMoved and touchesCancelled..
Observing pinch multi-touch gestures in a UITableView http://stackoverflow.com/questions/2003201/observing-pinch-multi-touch-gestures-in-a-uitableview This seems to be a classic problem. In my case I wanted to intercept some events over a UIWebView which can't be subclassed etc etc. I've found that the best way to do it is to intercept the events using the UIWindow EventInterceptWindow.h @protocol..
drawRect not being called in my subclass of UIImageView http://stackoverflow.com/questions/2612152/drawrect-not-being-called-in-my-subclass-of-uiimageview not being called in my subclass of UIImageView I have subclassed UIImageView and tried to override drawRect so I could draw on top of the image using Quartz 2D. I know this is a dumb newbie..
How to avoid superclass methods getting overridden by sub class in objective - c http://stackoverflow.com/questions/2864273/how-to-avoid-superclass-methods-getting-overridden-by-sub-class-in-objective-c to avoid superclass methods getting overridden by sub class in objective c Like in java A final class cannot be subclassed. This is done for reasons of security and efficiency . Accordingly many of the Java standard library classes are final for..
Accordion table cell - How to dynamically expand/contract uitableviewcell? http://stackoverflow.com/questions/3066167/accordion-table-cell-how-to-dynamically-expand-contract-uitableviewcell the cell is animating the correct way it is wreaking havoc with the other cells in the table. What I have done is subclassed UITableViewCell with a custom class which contains an instance of a UIView which actually draws the view which i then add..
Is there a way to use a custom selected image for UITabBarItem? http://stackoverflow.com/questions/3461867/is-there-a-way-to-use-a-custom-selected-image-for-uitabbaritem below any thoughts iphone uitabbar uitabbaritem share improve this question Just found my solution. Basically I subclassed UITabItem and set this in the navigation controller void viewDidAppear BOOL animated super viewDidAppear animated CustomTabBarItem..
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 account would probably be a pain. How should I implement this the Right Way ^1 The tab bar controller needs to be subclassed so that the tab bar controller's navigation item at that level stays in sync with the selected tab's navigation item and..
What's the best approach to draw lines between views? http://stackoverflow.com/questions/5847876/whats-the-best-approach-to-draw-lines-between-views the best approach to draw lines between views Background I have a custom scrollview subclassed that has uiimageviews on it that are draggable based on the drags I need to draw some lines dynamically in a subview of..
tabBarController and navigationControllers in landscape mode, episode II http://stackoverflow.com/questions/756536/tabbarcontroller-and-navigationcontrollers-in-landscape-mode-episode-ii the controller is put in landscape mode. I implemented shouldAutorotateToInterfaceOrientation as follows in the subclassed UITabBarController BOOL shouldAutorotateToInterfaceOrientation UIInterfaceOrientation interfaceOrientation if self selectedIndex..
http://stackoverflow.com/questions/7825220/draw-text-in-circle-overlay text in circle overlay I'm trying to draw some circle overlays containing text on MKMapView. I have subclassed the MKCircleView in which I put the following based on this but the text does not appear. The circles show up correctly...
How to override -drawrect in UIButton subclass? http://stackoverflow.com/questions/816024/how-to-override-drawrect-in-uibutton-subclass to override drawrect in UIButton subclass HI. I need to write some text over a custom button. So I subclassed UIButton. In drawrect I write the text I need. The problem is that the text ends up under the button. After I write my text..
http://stackoverflow.com/questions/8708543/get-selected-value-of-a-picker-view-that-is-present-in-different-view-and-use-th getting access 1.subclassing the view controller i.e. @interface viewController2 viewController1 but I already have subclassed i.e. @interface viewController2 addReminderController so I cant subclass twice I am not aware too 2. Creating an instance..
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