2014/10/15 下午 10:13:25

iphone Programming Glossary: reuse

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. iphone ios objective c uitableview..

Add UIPickerView & a Button in Action sheet - How?

http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how

are many ways to accomplish this. Here's one way that I just implemented in a current project. It's nice because I can reuse it between 5 or 6 different screens where I all users to select from a list of options. Create a new UITableViewController..

Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath:

http://stackoverflow.com/questions/12737860/assertion-failure-in-dequeuereusablecellwithidentifierforindexpath

forIndexPath indexPath if cell nil cell UITableViewCell alloc initWithStyle UITableViewCellStyleSubtitle reuseIdentifier CellIdentifier here's the error in the output 2012 10 04 20 13 05.356 Reader 4390 c07 Assertion failure in UITableView.. registerClass forCellReuseIdentifier method before calling this method. You didn't register a nib or a class for the reuse identifier Cell . Looking at your code you seem to expect the dequeue method to return nil if it doesn't have a cell to..

iPhone - What are reuseIdentifiers (UITableViewCell)?

http://stackoverflow.com/questions/2152180/iphone-what-are-reuseidentifiers-uitableviewcell

What are reuseIdentifiers UITableViewCell From the official documentation The reuse identifier is associated with a UITableViewCell object.. What are reuseIdentifiers UITableViewCell From the official documentation The reuse identifier is associated with a UITableViewCell object that the table view 䏭 delegate creates with the intent to reuse it.. reuse identifier is associated with a UITableViewCell object that the table view 䏭 delegate creates with the intent to reuse it as the basis for performance reasons for multiple rows of a table view. It is assigned to the cell object in initWithFrame..

Remove all subviews?

http://stackoverflow.com/questions/2156015/remove-all-subviews

on removeFromSuperview If the receiver 䏭 superview is not nil this method releases the receiver. If you plan to reuse the view be sure to retain it before calling this method and be sure to release it as appropriate when you are done with..

Crossplatform iPhone / Android code sharing

http://stackoverflow.com/questions/2380258/crossplatform-iphone-android-code-sharing

iPhone Android code sharing Simply put What is the most effective way to share reuse code between iPhone and Android builds The two most common scenarios I think would be Blank slate new project knowing ahead.. web services but that is not the spirit of this question. After experiencing a port of iPhone to Android with no code reuse at all second hand and seeing the pain that person had to endure I'd like to know how other people are avoiding it. java..

iPhone - dequeueReusableCellWithIdentifier usage

http://stackoverflow.com/questions/2928873/iphone-dequeuereusablecellwithidentifier-usage

tableView dequeueReusableCellWithIdentifier @ Cell if cell nil cell UITableViewCell alloc initWithFrame CGRectZero reuseIdentifier @ Cell Add elements to the cell return cell And here is the way I did it The cell row NSString identifier NSString.. identifier if cell nil return cell cell UITableViewCell alloc initWithFrame CGRectZero reuseIdentifier identifier Add elements to the cell return cell The difference is that people use the same identifier for every.. purpose of dequeueReusableCellWithIdentifier is to use less memory. If the screen can fit 4 or 5 table cells then with reuse you only need to have 4 or 5 table cells allocated in memory even if the table has 1000 entries. In the second way there..

Is there a multiplatform framework for developing iPhone / Android applications? [closed]

http://stackoverflow.com/questions/30953/is-there-a-multiplatform-framework-for-developing-iphone-android-applications

XNA 4.x Framework. It makes it easy for XNA developers to create cross platform games with extremely high code reuse. It currently supports iOS Android Windows both OpenGL and DirectX Mac OS X Linux Windows 8 Store Windows Phone 8 PlayStation..

Deleting an app in iTunes Connect

http://stackoverflow.com/questions/3377534/deleting-an-app-in-itunes-connect

that you use App Delete so the App Name will be freed up for their use. Does this mean that I won't be able to reuse the name in my account but other accounts will Has anybody tried this iphone itunesconnect share improve this question..

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 visible and once the images are loaded..

Animate change of view controllers without using navigation controller stack, subviews or modal controllers?

http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su

it at https gist.github.com 1394947 . As an aside I prefer the implementation in a separate class b c it's easier to reuse. If you don't want that you could simply implement the same logic directly in your app delegate eliminating the need for..

Core Data vs. SQLite for SQL experienced developers

http://stackoverflow.com/questions/840634/core-data-vs-sqlite-for-sql-experienced-developers

using Core Data instead. Here's some more info There is a legacy desktop application that this is replacing. We will reuse the existing back end. We currently have a SQLite database generated as a proof of concept. This is basically a cut down..

How to capture current view screenshot and reuse in code? (iPhone SDK)

http://stackoverflow.com/questions/879064/how-to-capture-current-view-screenshot-and-reuse-in-code-iphone-sdk

to capture current view screenshot and reuse in code iPhone SDK I am attemting to transition from one UIView to another when the user rotates the device. This in of..

MKMapView annotations changing/losing order?

http://stackoverflow.com/questions/9539802/mkmapview-annotations-changing-losing-order

identifier if annotationView nil annotationView MKPinAnnotationView alloc initWithAnnotation annotation reuseIdentifier identifier annotationView.pinColor MKPinAnnotationColorGreen pin drops when it first appears annotationView.animatesDrop.. setting depend on any specific annotation so you can set them all inside the if av nil block. This way you get maximum reuse. Also in viewForAnnotation after and outside the if you should set the annotation property of the view to the current annotation... the if you should set the annotation property of the view to the current annotation. This is in case the view is being reused from another annotation. Finally in viewForAnnotation don't assume the annotation will be of type MyClass . If you turn..