uidevice

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . I am developing one iphone app. But I want to restrict my app to install only on device swith Retina Display. So my decision is to add

问题 So, since Apple is now rejecting apps that access UDID, on our company's current project, we need to eliminate all APIs that make a call to this property: [[UIDevice currentDevice] uniqueIdentifier] We have eliminated all the calls in our own code, but need to be sure that the many external libraries we are using are not making calls to this property. What is the most reliable method for determining if a library is calling on this property? Thank you in advance! 回答1: Aside from using otx

问题 I'm searching for a way to detect the device my app is running on. I am not interested in software version. I searched many questions but none of them (surprisingly) satisfy my needs for following reasons: Solution 1: NSString *deviceType = [UIDevice currentDevice].model; This does not work because it gives me just "iPad". I want to know whether it is iPad, iPad 2, new iPad, iPhone 3GS, iPhone4 etc. Solution 2: Not testing for device type, checking for individual capabilities This does not

问题 I have an application that needs to get the list of installed (other, maybe third party) applications on the device. How can it be done? Or can it be done at all? 回答1: I doubt if something is available(if some iphone is jailbreaked and user can access file system, then it will be possible, but i am not aware of this.), but you can use following link and with the help of this you can check what all app are present and you can customize with some of your needs. 回答2: You could scan all your apps

问题 Is there any way or hack to detect on what color (black / white) iPhone, iPad or iPod touch the iOS is installed? I want to load corresponding UI skins in case of Black or White devices. 回答1: There's a private API to retrieve both the DeviceColor and the DeviceEnclosureColor . UIDevice *device = [UIDevice currentDevice]; SEL selector = NSSelectorFromString(@"deviceInfoForKey:"); if (![device respondsToSelector:selector]) { selector = NSSelectorFromString(@"_deviceInfoForKey:"); } if ([device

问题 Is there any way to get NSLog to print out an entire JSON file. I am currently saying NSString *deviceInfo = [NSString stringWithFormat:@"%@ %@", [[UIDevice currentDevice]model], [[UIDevice currentDevice]systemVersion]]; NSDictionary *json = [deviceInfo JSONValue]; NSLog(@"json file = %@", json); And it is printing out "json file = (null)" Thanks Clinton 回答1: I think you’re misunderstanding what JSON is for. The string you’re passing to -JSONValue isn’t a valid JSON string, so it’s returning

问题 is there way to get launch image as UIImage for current device? or UIImageView with an image 回答1: You just need to get Default.png which will have any @2x applied as necessary. - (UIImage *)splashImage { return [UIImage imageNamed:@"Default.png"]; } If you care about getting the iPhone 5 specific one you need to do a height check: - (UIImage *)splashImage { if ([[UIScreen mainScreen] bounds].size.height == 568.0){ return [UIImage imageNamed:@"Default-568h.png"]; } else { return [UIImage

问题 I am getting battery status and others . UIDevice *myDevice = [UIDevice currentDevice]; [myDevice setBatteryMonitoringEnabled:YES]; float batLeft = [myDevice batteryLevel]; int i=[myDevice batteryState]; int batinfo=(batLeft*100); NSLog(@"Battry Level is :%d and Battery Status is :%d",batinfo,i); switch (i) { case UIDeviceBatteryStateUnplugged: { break; } case UIDeviceBatteryStateCharging: { break; } case UIDeviceBatteryStateFull: { break; } default: { break; } } Now i am trying to get the

问题 There's a way to get programmatically the dimensions of a photo taken with an iphone? I want to take the dimensions directly without passing throught model version,so this solution can't be valid: check model version->write a dictionary with dimensions of each iphone model -> take the correct index 回答1: When you take a picture, you get an UIImage. UIImage objects have a -(CGSize)size method that returns the dimensions of the image in points. You should multiply it by it's scale property to

问题 I have requirement for an application which work in background only. When first time application install on device then after installation that will be go to background. And after two minutes a view will popup on screen. Now problem is that after installation how to redirect application into background? i get answer for this that if we want to send our app into background then we have to open another app like as safari. so i get this solution. Now problem is that how show a view after two