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2014/10/15 ¤U¤È 10:11:57
iphone Programming Glossary: needsHow 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 set the content size of the UIScrollView to the frame size of the UIView . Then what needs to be implemented in order to automatically scroll to the active text field Ideally as much of the setup.. the components as possible will be done in Interface Builder. I'd like to only write code for what needs it. Note the UIView or UIScrollView that I'm working with is brought up by a tabbar UITabBar which needs.. it. Note the UIView or UIScrollView that I'm working with is brought up by a tabbar UITabBar which needs to function as normal. Edit I am adding the scroll bar just for when the keyboard comes up. Even though..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework get out our original n real numbers. now the structure of A its setup for complex values. So vDSP needs to standardise how to pack real numbers into it. so first we generate n real numbers 1 2 ... n for i.. our precalculated bobbins and done But wait before you unpack there is one final thing that needs to be done Need to see the documentation for this one... in order to optimise different routines return..
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 PUBLIC_HEADERS_FOLDER_PATH then mkdir p CREATING_UNIVERSAL_DIR PUBLIC_HEADERS_FOLDER_PATH # needs to be outside the double quotes cp r CURRENTCONFIG_DEVICE_DIR PUBLIC_HEADERS_FOLDER_PATH CREATING_UNIVERSAL_DIR..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone the resultblock wont have run yet as its a callback. So largeImage wont be valid yet. largeImage needs to be an instance variable not scoped to the method. I use this construct to do this when using the..
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 initializer . But I'll leave the 2.0 version of the answer here for anyone that needs it p It's harder than it really should be. Here's how I did this when I had to do it You need to set.. a custom UIView that draws the border and background itself in the appropriate colors. This view needs to be able to draw the borders in 4 different modes rounded on the top for the first cell in a section..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone HTML on the iPhone closed Can anyone recommend a C or Objective C library for HTML parsing It needs to handle messy HTML code that won't quite validate. Does such a library exist or am I better off just..
Gradients on UIView and UILabels On iPhone [duplicate] http://stackoverflow.com/questions/422066/gradients-on-uiview-and-uilabels-on-iphone On iPhone duplicate Possible Duplicate Manually drawing a gradient in iPhone apps My application needs to display text in either a View or Label but the back ground must be a gradient as opposed to a true..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers telling us what we should do. Page 18 51 Best Practices for Data Flow Figure out exactly what needs to be communicated Define input parameters for your view controller For communicating back up the hierarchy.. design pattern. In a nutshell this means that your controller shouldn't look up the objects it needs to do its job e.g. reference a global variable . Instead you should always inject those dependencies.. you should always inject those dependencies into the controller i.e. pass in the objects it needs via methods . If you follow the dependency injection pattern your controller will be modular and reusable...
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 tabs containing separate navigation controllers. The problem with this is that each nav controller needs to share a single root view controller namely the Accounts table in Tweetie this doesn't seem to work.. 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..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now identifier seems to be the MAC address. You could query the MAC and use that as UUID. Edit One needs to always query the MAC of the same interface of course. I guess the best bet is with en0 . The MAC..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown have the IMP you need to cast it to a function pointer that includes all of the details that ARC needs including the two implicit hidden arguments self and _cmd of every Objective C method call . This is.. someRect someView Reasoning for Warning The reason for this warning is that with ARC the runtime needs to know what to do with the result of the method you're calling. The result could be anything void int..
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 as of May 6 2010 1 GCCalendar 2 http github.com klazuka Kal 3 http code.google.com p iphonecal needs to be customized easily to change text from chinese to english 4 Commercial http nrg.com.bd blog archives..
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 a UIView inside of a UIScrollView and the trick is to programatically set the content size of the UIScrollView to the frame size of the UIView . Then what needs to be implemented in order to automatically scroll to the active text field Ideally as much of the setup of the components as possible will be done in Interface.. to the active text field Ideally as much of the setup of the components as possible will be done in Interface Builder. I'd like to only write code for what needs it. Note the UIView or UIScrollView that I'm working with is brought up by a tabbar UITabBar which needs to function as normal. Edit I am adding the scroll bar.. Builder. I'd like to only write code for what needs it. Note the UIView or UIScrollView that I'm working with is brought up by a tabbar UITabBar which needs to function as normal. Edit I am adding the scroll bar just for when the keyboard comes up. Even though it's not needed I feel like it provides a better interface..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework we then throw that into the inverse transform and hopefully get out our original n real numbers. now the structure of A its setup for complex values. So vDSP needs to standardise how to pack real numbers into it. so first we generate n real numbers 1 2 ... n for i 0 i n i originalReal i float i 1 Next we pack them into A as.. that we have got back exactly what we started out with release our precalculated bobbins and done But wait before you unpack there is one final thing that needs to be done Need to see the documentation for this one... in order to optimise different routines return values that need to be scaled by different amounts in order..
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 TARGET_BUILD_DIR usr local include ' if d CURRENTCONFIG_DEVICE_DIR PUBLIC_HEADERS_FOLDER_PATH then mkdir p CREATING_UNIVERSAL_DIR PUBLIC_HEADERS_FOLDER_PATH # needs to be outside the double quotes cp r CURRENTCONFIG_DEVICE_DIR PUBLIC_HEADERS_FOLDER_PATH CREATING_UNIVERSAL_DIR PUBLIC_HEADERS_FOLDER_PATH fi fi INSTALL INSTRUCTIONS..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone callbacks it kind of helps. Also when findLargeImage returns the resultblock wont have run yet as its a callback. So largeImage wont be valid yet. largeImage needs to be an instance variable not scoped to the method. I use this construct to do this when using the method but you may find something more suitable to your use...
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 really easy especially in combination with the UIColor colorWithPatternImage initializer . But I'll leave the 2.0 version of the answer here for anyone that needs it p It's harder than it really should be. Here's how I did this when I had to do it You need to set the UITableViewCell's backgroundView property to a custom UIView.. need to set the UITableViewCell's backgroundView property to a custom UIView that draws the border and background itself in the appropriate colors. This view needs to be able to draw the borders in 4 different modes rounded on the top for the first cell in a section rounded on the bottom for the last cell in a section no rounded..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone HTML on the iPhone closed Can anyone recommend a C or Objective C library for HTML parsing It needs to handle messy HTML code that won't quite validate. Does such a library exist or am I better off just trying to use regular expressions iphone html parsing html..
Gradients on UIView and UILabels On iPhone [duplicate] http://stackoverflow.com/questions/422066/gradients-on-uiview-and-uilabels-on-iphone on UIView and UILabels On iPhone duplicate Possible Duplicate Manually drawing a gradient in iPhone apps My application needs to display text in either a View or Label but the back ground must be a gradient as opposed to a true color. Using a graphics program to create desired look is..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers delegate methods. Fair 'nuff. A bit further on we get this slide telling us what we should do. Page 18 51 Best Practices for Data Flow Figure out exactly what needs to be communicated Define input parameters for your view controller For communicating back up the hierarchy use loose coupling Define a generic interface for observers.. you think about them in the context of the dependency injection design pattern. In a nutshell this means that your controller shouldn't look up the objects it needs to do its job e.g. reference a global variable . Instead you should always inject those dependencies into the controller i.e. pass in the objects it needs via methods.. it needs to do its job e.g. reference a global variable . Instead you should always inject those dependencies into the controller i.e. pass in the objects it needs via methods . If you follow the dependency injection pattern your controller will be modular and reusable. And if you think about where the Stanford presenters..
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 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 controller namely the Accounts table in Tweetie this doesn't seem to work pushing the table controller to a second nav controller seems.. mention all 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..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now requires a bit of effort since the most reliable per device identifier seems to be the MAC address. You could query the MAC and use that as UUID. Edit One needs to always query the MAC of the same interface of course. I guess the best bet is with en0 . The MAC is always present even if the interface has no IP is down. Edit..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown of the method but will not always match exactly. Once you have the IMP you need to cast it to a function pointer that includes all of the details that ARC needs including the two implicit hidden arguments self and _cmd of every Objective C method call . This is handled in the third line the void on the right hand side simply.. UIView void imp CGRect result func _controller selector someRect someView Reasoning for Warning The reason for this warning is that with ARC the runtime needs to know what to do with the result of the method you're calling. The result could be anything void int char NSString id etc. ARC normally gets this information..
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 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 p iphonecal needs to be customized easily to change text from chinese to english 4 Commercial http nrg.com.bd blog archives 36 but the look feel of the previous ones is much much..
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 the trick is to programatically set the content size of the UIScrollView to the frame size of the UIView . Then what needs to be implemented in order to automatically scroll to the active text field Ideally as much of the setup of the components.. of the setup of the components as possible will be done in Interface Builder. I'd like to only write code for what needs it. Note the UIView or UIScrollView that I'm working with is brought up by a tabbar UITabBar which needs to function as.. code for what needs it. Note the UIView or UIScrollView that I'm working with is brought up by a tabbar UITabBar which needs to function as normal. Edit I am adding the scroll bar just for when the keyboard comes up. Even though it's not needed..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework and hopefully get out our original n real numbers. now the structure of A its setup for complex values. So vDSP needs to standardise how to pack real numbers into it. so first we generate n real numbers 1 2 ... n for i 0 i n i originalReal.. started out with release our precalculated bobbins and done But wait before you unpack there is one final thing that needs to be done Need to see the documentation for this one... in order to optimise different routines return values that need..
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 d CURRENTCONFIG_DEVICE_DIR PUBLIC_HEADERS_FOLDER_PATH then mkdir p CREATING_UNIVERSAL_DIR PUBLIC_HEADERS_FOLDER_PATH # needs to be outside the double quotes cp r CURRENTCONFIG_DEVICE_DIR PUBLIC_HEADERS_FOLDER_PATH CREATING_UNIVERSAL_DIR PUBLIC_HEADERS_FOLDER_PATH..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone returns the resultblock wont have run yet as its a callback. So largeImage wont be valid yet. largeImage needs to be an instance variable not scoped to the method. I use this construct to do this when using the method but you may find..
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 with the UIColor colorWithPatternImage initializer . But I'll leave the 2.0 version of the answer here for anyone that needs it p It's harder than it really should be. Here's how I did this when I had to do it You need to set the UITableViewCell's.. property to a custom UIView that draws the border and background itself in the appropriate colors. This view needs to be able to draw the borders in 4 different modes rounded on the top for the first cell in a section rounded on the bottom..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone HTML on the iPhone closed Can anyone recommend a C or Objective C library for HTML parsing It needs to handle messy HTML code that won't quite validate. Does such a library exist or am I better off just trying to use regular..
Gradients on UIView and UILabels On iPhone [duplicate] http://stackoverflow.com/questions/422066/gradients-on-uiview-and-uilabels-on-iphone UIView and UILabels On iPhone duplicate Possible Duplicate Manually drawing a gradient in iPhone apps My application needs to display text in either a View or Label but the back ground must be a gradient as opposed to a true color. Using a graphics..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers on we get this slide telling us what we should do. Page 18 51 Best Practices for Data Flow Figure out exactly what needs to be communicated Define input parameters for your view controller For communicating back up the hierarchy use loose coupling.. dependency injection design pattern. In a nutshell this means that your controller shouldn't look up the objects it needs to do its job e.g. reference a global variable . Instead you should always inject those dependencies into the controller.. global variable . Instead you should always inject those dependencies into the controller i.e. pass in the objects it needs via methods . If you follow the dependency injection pattern your controller will be modular and reusable. And if you think..
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 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 controller namely the Accounts table in Tweetie this doesn't seem to work pushing the table.. 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..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now reliable per device identifier seems to be the MAC address. You could query the MAC and use that as UUID. Edit One needs to always query the MAC of the same interface of course. I guess the best bet is with en0 . The MAC is always present even..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown exactly. Once you have the IMP you need to cast it to a function pointer that includes all of the details that ARC needs including the two implicit hidden arguments self and _cmd of every Objective C method call . This is handled in the third.. _controller selector someRect someView Reasoning for Warning The reason for this warning is that with ARC the runtime needs to know what to do with the result of the method you're calling. The result could be anything void int char NSString id..
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 I am aware of EDIT as of May 6 2010 1 GCCalendar 2 http github.com klazuka Kal 3 http code.google.com p iphonecal needs to be customized easily to change text from chinese to english 4 Commercial http nrg.com.bd blog archives 36 but the look..
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