ios4

问题 Pretty new to iOS dev, I feel I have a grasp of the basics. I was thinking through an app I would like to make and the steps involved, components needed... and I have no idea how to or what is the best method to save user input and retrieve it. An example being (I don't plan to make this, but it illustrates what I want to know), say a simple to-do list, it has NSTableView that is populated from NSMutuableArray, to begin with it is blank as the user has added nothing. Once an item is added to

问题 I have multiple uitableviews. I created the multiple tables by using a loop. The number of tables depend on the result of the webservice. And each table have multiple selections. I have to pass all the values selected from every table to next webservice. How can I do this task ? Thank You, 回答1: 1-> you can use check Boxes for in your UITableView for mutli section (Check box can be implemented by UIButton ). one check box per row. 2-> Use a flag ( BOOL isSelected ),set it true when user select

问题 I have multiple uitableviews. I created the multiple tables by using a loop. The number of tables depend on the result of the webservice. And each table have multiple selections. I have to pass all the values selected from every table to next webservice. How can I do this task ? Thank You, 回答1: 1-> you can use check Boxes for in your UITableView for mutli section (Check box can be implemented by UIButton ). one check box per row. 2-> Use a flag ( BOOL isSelected ),set it true when user select

问题 I have multiple uitableviews. I created the multiple tables by using a loop. The number of tables depend on the result of the webservice. And each table have multiple selections. I have to pass all the values selected from every table to next webservice. How can I do this task ? Thank You, 回答1: 1-> you can use check Boxes for in your UITableView for mutli section (Check box can be implemented by UIButton ). one check box per row. 2-> Use a flag ( BOOL isSelected ),set it true when user select

问题 Hi so this is my situation up to now. I've added a UIImageView to Interface Builder and set it to a .png image of a needle (Needle.png), I've also connected it to the corresponding IBOutlet in Xcode. In my viewDidLoad: method I set the anchor point, - (void)viewDidLoad { [super viewDidLoad]; [needle.layer setAnchorPoint:CGPointMake( 0.5, 1 )]; } And I've also created a button in Interface Builder and connected it to an IBAction in Xcode, this button performs an animation block, - (IBAction

问题 When running my program to query the iPod library of my iPhone, I get the following output in the console: CPSqliteStatementPerform: attempt to write a readonly database for UPDATE ddd.ext_container SET orig_date_modified = (SELECT date_modified FROM container WHERE pid=container_pid) WHERE orig_date_modified=0 I have disabled everything that outputs to the console so it isn't as if I am having an error with NSLog. What is going on here and how can I fix it. I'll include the overall class

问题 I have configured locationManager as follows. _locationManager = [[CLLocationManager alloc] init]; [_locationManager setDelegate:self]; [_locationManager setDesiredAccuracy:kCLLocationAccuracyNearestTenMeters]; [_locationManager setDistanceFilter:kCLDistanceFilterNone]; When the application runs, I get some updates from the delegate methods. And when I do not change the location, and the mobile is stationary for about 2 hrs, I receive about 10-12 updates in the first 10 mins, and then stop

问题 I did a search here already, and haven't found a clear answer to my question, so I thought the time was right to post. I have an iOS application that was developed using Xcode 3.2 and SDK 4.2. When I built the bundle, I targeted iOS 3, so that people running older iPhones (like my wife who has iPhone 3 with iOS 3.x on it) can run the application. The app was also tested on, and runs fine with, the latest 4.x iOS. With the release of iOS 5, I want to make sure my app is compatible. There is

问题 i have three simple images of a hen which i am trying to animate(hen walking) using a very good tutorial by ray wenderlich http://www.raywenderlich.com/1271/how-to-use-animations-and-sprite-sheets-in-cocos2d but i am getting this warning again and again and no sprite shows up on the screen original Width/Height not found on the CCSpriteFrame. AnchorPoint won't work as expected. Regenerate the .plist i tried resizing and untrimming but the erro persists...i cannot figure out the problem??

问题 I was really impressed, and really grateful about the answers I recived last time I asked here. I have this problem with Core Plot. I want to have a CPTGraphHostingView inside my UIView so I can have things like labels and scroll views below it. I am using XCode 3.2 by the way. How do I do this programmatically? Or with the Interface builder if possible.(I need the instructions to be detailed as im I bit new to this sort of thing) Thanks for your support. 回答1: If you want to add a core plot