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2014/10/15 ¤U¤È 10:15:53
iphone Programming Glossary: visibleHow 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 up and down. I'm simply using void textFieldDidBeginEditing UITextField textField Keyboard becomes visible scrollView.frame CGRectMake scrollView.frame.origin.x scrollView.frame.origin.y scrollView.frame.size.width.. 215 50 resize However this doesn't automatically move up or center the lower text fields in the visible area which is what I would really like. iphone objective c ios share improve this question You.. object nil void viewWillDisappear BOOL animated unregister for keyboard notifications while not visible. NSNotificationCenter defaultCenter removeObserver self name UIKeyboardWillShowNotification object..
Lazy load images in UITableView http://stackoverflow.com/questions/1130089/lazy-load-images-in-uitableview getting the images in separate threads but I have to load each image every time a cell becomes visible again Otherwise reuse of cells shows old images . Can someone please tell me how to duplicate this behavior...
How to tell if UIViewController's view is visible http://stackoverflow.com/questions/2777438/how-to-tell-if-uiviewcontrollers-view-is-visible to tell if UIViewController's view is visible I have a tabbar application with many views. Is there a way to know if a particular UIViewController.. application with many views. Is there a way to know if a particular UIViewController is currently visible from within the UIViewController looking for a property iphone ios uiview uiviewcontroller share.. share improve this question The view's window property is non nil if a view is currently visible so check the main view in the view controller EDIT Invoking the view method causes the view to load..
Adding view on StatusBar in iPhone http://stackoverflow.com/questions/2833724/adding-view-on-statusbar-in-iphone example in a view controller in your application create an instance of your new class and make it visible. overlayWindow ACStatusBarOverlayWindow alloc initWithFrame CGRectZero overlayWindow.hidden NO Be aware..
Inner shadow effect on UIView layer? http://stackoverflow.com/questions/4431292/inner-shadow-effect-on-uiview-layer context UIGraphicsGetCurrentContext CGFloat radius 0.5f CGRectGetHeight bounds Create the visible path which will be the shape that gets the inner shadow In this case it's just a rounded rect but could.. shadow In this case it's just a rounded rect but could be as complex as your want CGMutablePathRef visiblePath CGPathCreateMutable CGRect innerRect CGRectInset bounds radius radius CGPathMoveToPoint visiblePath.. CGPathCreateMutable CGRect innerRect CGRectInset bounds radius radius CGPathMoveToPoint visiblePath NULL innerRect.origin.x bounds.origin.y CGPathAddLineToPoint visiblePath NULL innerRect.origin.x..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events developer is registering his app as tracking location changes but the location services icon isn't visible while the app is running which I thought was a requirement. Does anyone have any clues as to how this..
Lazy load images in UITableViewCell http://stackoverflow.com/questions/531482/lazy-load-images-in-uitableviewcell getting the images in separate threads but I have to load each image every time a cell becomes visible again Otherwise reuse of cells shows old images Apps like Facebook load images only for cells currently.. Otherwise reuse of cells shows old images Apps like Facebook load images only for cells currently visible and once the images are loaded they are not loaded again. Can someone please tell me how to duplicate..
View Controllers: How to switch between views programmatically? http://stackoverflow.com/questions/910994/view-controllers-how-to-switch-between-views-programmatically without a tab bar controller I mean If I allocate that ViewController's class and the view get's visible would I have to take care about calling those methods How does it know that viewWillAppear viewDidDisappear..
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 frame size of the UIScrollView when the keyboard goes up and down. I'm simply using void textFieldDidBeginEditing UITextField textField Keyboard becomes visible scrollView.frame CGRectMake scrollView.frame.origin.x scrollView.frame.origin.y scrollView.frame.size.width scrollView.frame.size.height 215 50 resize void textFieldDidEndEditing.. scrollView.frame.size.width scrollView.frame.size.height 215 50 resize However this doesn't automatically move up or center the lower text fields in the visible area which is what I would really like. iphone objective c ios share improve this question You will need a scroll view if the contents you have now does not.. keyboardWillHide name UIKeyboardWillHideNotification object nil void viewWillDisappear BOOL animated unregister for keyboard notifications while not visible. NSNotificationCenter defaultCenter removeObserver self name UIKeyboardWillShowNotification object nil NSNotificationCenter defaultCenter removeObserver self..
Lazy load images in UITableView http://stackoverflow.com/questions/1130089/lazy-load-images-in-uitableview does not freeze up while the images are being loaded. I tried getting the images in separate threads but I have to load each image every time a cell becomes visible again Otherwise reuse of cells shows old images . Can someone please tell me how to duplicate this behavior. iphone ios objective c uitableview uitableviewcontroller..
How to tell if UIViewController's view is visible http://stackoverflow.com/questions/2777438/how-to-tell-if-uiviewcontrollers-view-is-visible to tell if UIViewController's view is visible I have a tabbar application with many views. Is there a way to know if a particular UIViewController is currently visible from within the UIViewController looking.. tell if UIViewController's view is visible I have a tabbar application with many views. Is there a way to know if a particular UIViewController is currently visible from within the UIViewController looking for a property iphone ios uiview uiviewcontroller share improve this question The view's window property is non nil.. looking for a property iphone ios uiview uiviewcontroller share improve this question The view's window property is non nil if a view is currently visible so check the main view in the view controller EDIT Invoking the view method causes the view to load if it is not loaded which is unnecessary and may be undesirable...
Adding view on StatusBar in iPhone http://stackoverflow.com/questions/2833724/adding-view-on-statusbar-in-iphone labels imageViews etc... return self @end You can now for example in a view controller in your application create an instance of your new class and make it visible. overlayWindow ACStatusBarOverlayWindow alloc initWithFrame CGRectZero overlayWindow.hidden NO Be aware of messing with the window key status by using void makeKeyAndVisible..
Inner shadow effect on UIView layer? http://stackoverflow.com/questions/4431292/inner-shadow-effect-on-uiview-layer In your drawRect method... CGRect bounds self bounds CGContextRef context UIGraphicsGetCurrentContext CGFloat radius 0.5f CGRectGetHeight bounds Create the visible path which will be the shape that gets the inner shadow In this case it's just a rounded rect but could be as complex as your want CGMutablePathRef visiblePath.. visible path which will be the shape that gets the inner shadow In this case it's just a rounded rect but could be as complex as your want CGMutablePathRef visiblePath CGPathCreateMutable CGRect innerRect CGRectInset bounds radius radius CGPathMoveToPoint visiblePath NULL innerRect.origin.x bounds.origin.y CGPathAddLineToPoint.. rect but could be as complex as your want CGMutablePathRef visiblePath CGPathCreateMutable CGRect innerRect CGRectInset bounds radius radius CGPathMoveToPoint visiblePath NULL innerRect.origin.x bounds.origin.y CGPathAddLineToPoint visiblePath NULL innerRect.origin.x innerRect.size.width bounds.origin.y CGPathAddArcToPoint visiblePath..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events count of Cellular WiFi data you've used. I suspect that the developer is registering his app as tracking location changes but the location services icon isn't visible while the app is running which I thought was a requirement. Does anyone have any clues as to how this can be accomplished iphone background location multitasking..
Lazy load images in UITableViewCell http://stackoverflow.com/questions/531482/lazy-load-images-in-uitableviewcell does not freeze up while the images are being loaded. I tried getting the images in separate threads but I have to load each image every time a cell becomes visible again Otherwise reuse of cells shows old images Apps like Facebook load images only for cells currently visible and once the images are loaded they are not loaded.. to load each image every time a cell becomes visible again Otherwise reuse of cells shows old images Apps like Facebook load images only for cells currently visible and once the images are loaded they are not loaded again. Can someone please tell me how to duplicate this behavior. Thanks. Edit Trying to cache images in an NSMutableDictionary..
View Controllers: How to switch between views programmatically? http://stackoverflow.com/questions/910994/view-controllers-how-to-switch-between-views-programmatically what or how would those methods be called if I do it my way without a tab bar controller I mean If I allocate that ViewController's class and the view get's visible would I have to take care about calling those methods How does it know that viewWillAppear viewDidDisappear or viewDidLoad I believe that the Tab Bar Controller..
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 keyboard goes up and down. I'm simply using void textFieldDidBeginEditing UITextField textField Keyboard becomes visible scrollView.frame CGRectMake scrollView.frame.origin.x scrollView.frame.origin.y scrollView.frame.size.width scrollView.frame.size.height.. 215 50 resize However this doesn't automatically move up or center the lower text fields in the visible area which is what I would really like. iphone objective c ios share improve this question You will need a scroll view.. object nil void viewWillDisappear BOOL animated unregister for keyboard notifications while not visible. NSNotificationCenter defaultCenter removeObserver self name UIKeyboardWillShowNotification object nil NSNotificationCenter..
Lazy load images in UITableView http://stackoverflow.com/questions/1130089/lazy-load-images-in-uitableview being loaded. I tried getting the images in separate threads but I have to load each image every time a cell becomes visible again Otherwise reuse of cells shows old images . Can someone please tell me how to duplicate this behavior. iphone ios..
How to tell if UIViewController's view is visible http://stackoverflow.com/questions/2777438/how-to-tell-if-uiviewcontrollers-view-is-visible to tell if UIViewController's view is visible I have a tabbar application with many views. Is there a way to know if a particular UIViewController is currently visible.. I have a tabbar application with many views. Is there a way to know if a particular UIViewController is currently visible from within the UIViewController looking for a property iphone ios uiview uiviewcontroller share improve this question.. uiview uiviewcontroller share improve this question The view's window property is non nil if a view is currently visible so check the main view in the view controller EDIT Invoking the view method causes the view to load if it is not loaded..
Adding view on StatusBar in iPhone http://stackoverflow.com/questions/2833724/adding-view-on-statusbar-in-iphone @end You can now for example in a view controller in your application create an instance of your new class and make it visible. overlayWindow ACStatusBarOverlayWindow alloc initWithFrame CGRectZero overlayWindow.hidden NO Be aware of messing with..
Inner shadow effect on UIView layer? http://stackoverflow.com/questions/4431292/inner-shadow-effect-on-uiview-layer self bounds CGContextRef context UIGraphicsGetCurrentContext CGFloat radius 0.5f CGRectGetHeight bounds Create the visible path which will be the shape that gets the inner shadow In this case it's just a rounded rect but could be as complex as.. that gets the inner shadow In this case it's just a rounded rect but could be as complex as your want CGMutablePathRef visiblePath CGPathCreateMutable CGRect innerRect CGRectInset bounds radius radius CGPathMoveToPoint visiblePath NULL innerRect.origin.x.. CGMutablePathRef visiblePath CGPathCreateMutable CGRect innerRect CGRectInset bounds radius radius CGPathMoveToPoint visiblePath NULL innerRect.origin.x bounds.origin.y CGPathAddLineToPoint visiblePath NULL innerRect.origin.x innerRect.size.width..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events I suspect that the developer is registering his app as tracking location changes but the location services icon isn't visible while the app is running which I thought was a requirement. Does anyone have any clues as to how this can be accomplished..
Lazy load images in UITableViewCell http://stackoverflow.com/questions/531482/lazy-load-images-in-uitableviewcell being loaded. I tried getting the images in separate threads but I have to load each image every time a cell becomes visible again Otherwise reuse of cells shows old images Apps like Facebook load images only for cells currently visible and once.. visible again Otherwise reuse of cells shows old images Apps like Facebook load images only for cells currently visible and once the images are loaded they are not loaded again. Can someone please tell me how to duplicate this behavior. Thanks...
View Controllers: How to switch between views programmatically? http://stackoverflow.com/questions/910994/view-controllers-how-to-switch-between-views-programmatically if I do it my way without a tab bar controller I mean If I allocate that ViewController's class and the view get's visible would I have to take care about calling those methods How does it know that viewWillAppear viewDidDisappear or viewDidLoad..
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