ios4

问题 I have an UIWebView that has an youtube's embed code (iframe). I'd like to enable both portrait and horizontal orientation for the video player, but portrait mode only for the UIWebView itself. How can I achieve this? 回答1: The UIWebView displays its content by its orientation. There is no (easy) way to conditionally change which orientations the UIWebView allows based on its content. The only way I can imagine this working is by parsing the HTML of the web view and based on its content,

问题 I have a project to use front camera in LandscapeRight orientation for remote communication. when I use the front camera,I need it to work at Landscape orientation,the remote one can get the clear graphs in landscape orientation.I use the following function to changes output orientation of local one and it indeed works in ios5 and 6,but I encountered inverted orientation in my iphone (ios 4.3.3).I don't know why?Does anyone encountered the same problem?? here is the .h file @interface

问题 I have 4 Colors defined. @interface Global : NSObject { UIColor *_EnemyColor; UIColor *_EnemyColor2; UIColor *_TeamColor; UIColor *_TeamColor2; } @property (nonatomic, retain) UIColor *EnemyColor; @property (nonatomic, retain) UIColor *EnemyColor2; @property (nonatomic, retain) UIColor *TeamColor; @property (nonatomic, retain) UIColor *TeamColor2; @end and @synthesize EnemyColor = _EnemyColor; @synthesize EnemyColor2 = _EnemyColor2; @synthesize TeamColor = _TeamColor; @synthesize TeamColor2 =

问题 Somehow I got this error message when testing iAd on the device. "no qualified ads found for this request" What to do to fix it? Anyone has any idea? On the simulator there is no error, it succeeds to show the "Test Advertisement" UPDATE: The real problem here is that the delegate to raise the error IS NOT BEING CALLED, on the simulator it works, and on the iPhone it does not. That is the issue. More details here: This function is being called in the Simulator: - (void)bannerViewDidLoadAd:

问题 I got a code from a client to fix the bug (code was written by some other programmer), So when I open the xib file it simply hang my computer, i restarted my computer 3 times because of that and finally decided to see what's happening by opening the Activity Monitor and it turn out it is opening something with name " Interface Builder Cocoa Touch tool " and its eating all of my computer memory. Below is the screenshot. But here is the interesting thing, it is not opening " Interface Builder

问题 In iPhone App I want to implement core plot (vertical bar chart) In Original code Prject I am getting graph as but when same code I am implementing in my App I am getting plot as so what things could be wrong? Please Help and Suggest Thanks. 回答1: By changing the bar width i could fix my problem. 来源： https://stackoverflow.com/questions/5484019/iphone-core-plot-problem

问题 I've been building an iPhone game for the last couple months using XCode 3.2.5 and iOS 4.2 and I'm about to submit it to the App Store. Before I do that, however, I wanted to test it against iOS 4.3 Beta 3, so I downloaded the latest beta SDK, installed it in a separate location, and updated the device to iOS 4.3 Beta 3. Now, when I run the game and it attempts to authenticate the local player in Game Center, it pops up a box saying "This game is not recognized by Game Center". Why? I tried

问题 Is there a way to add character spacing in UILabel? I found some examples like: How to change an UILabel/UIFont's letter spacing? But it's hard to believe that there isn't a easier way. 回答1: There is no other to achieve what you want than doing custom Quartz drawing, UILabel is not flexible enough. However, other people have taken on the challenge, there is for example OHAttributedLabel which allows you to set an NSAttributedString as the label's text. Try the NSKernAttributeName , it

问题 I have navigation controller based project. In my project I have Splash Screen & Login Screen where i have hidden the navigation controller. Now i have to implement TabbarController in the application and It need to be shown the screen after Login Page. I want to add it in AppDelegate.But my problem is that I have set rootviewcontroller of Window as navigation controller. And Now i want to use Tabbar controller also into the Appdelegate class. I am finding difficulty into it. Any help will be

问题 I have an alertview that is being created with a textfield inside of it. when i close the alertview via a submit or cancel button, i am getting the wait_fences error in the console. it doesnt crash, or i havent been able to make it crash but id really like to figure out what is going on. alert = [[UIAlertView alloc] initWithTitle:@"Lookup" message:@"\n\n\n" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Submit", nil]; label = [[UILabel alloc] initWithFrame:CGRectMake(12, 40,