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Question

How can I determine if multitasking is supported on a device?

Answer 1

+2 A:

You can check whether the device is capable of multitasking like this:

UIDevice* device = [UIDevice currentDevice];
BOOL backgroundSupported = NO;
if ([device respondsToSelector:@selector(isMultitaskingSupported)])
   backgroundSupported = device.multitaskingSupported;

tob 2010-08-09 16:18:52

thank you sir but i didn't get you . whither it is going to be use in the code

2010-08-10 07:48:11

You asked how to detect whether your device supports multitasking. The above code does exactly that. After running this piece of code, `backgroundSupported` will be `YES` if your device supports multitasking, otherwise `NO`.

tob 2010-08-10 08:04:49

I understand but where it is going to be use in the application code

2010-08-10 08:56:54

Whereever you want to know if multitasking is available and behave differently.

tob 2010-08-10 09:29:23

2010-08-10 11:12:02

iPod does not support multitasking even if you've updated it to iOS4. Multitasking is only supported on iPhone 3GS and iPhone 4.

tob 2010-08-10 12:04:17

I implement the code which you give me like this- (void)applicationDidEnterBackground:(UIApplication *)application { UIDevice* device = [UIDevice currentDevice]; BOOL backgroundSupported = NO; if ([device respondsToSelector:@selector(isMultitaskingSupported)]) backgroundSupported = device.multitaskingSupported;}but ipod doesn't workwhat i do now sir

2010-08-10 12:06:26

See my comment above. The iPod does not support multitasking regardless whether you've installed iOS 4 or not. You will have to get an iPhone 3GS or an iPhone 4 to get multitasking.

tob 2010-08-10 12:33:24

@tob - Actually, the third-generation iPod touch also supports multitasking as well, but it sounds like he has an older model.

Brad Larson 2010-08-10 12:50:36

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How can I determine if multitasking is supported on a device?

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