I am Using Skobbler map.
get crash on audio advice method, routeAdviceListWithDistanceFormat
NSArray* advices = [[SKRoutingService sharedInstance] routeAdviceListWithDistanceFormat:SKDistanceFormatMetric];
method in SKMAP
IOS Version : 7.1
Xcode :5.1.1
Related
In iOS 8.4, our game is crashing when trying to initialize an SKVideoNode via filename, works just fine in iOS 9. Apple documentation states that the following method is supported in 8.0 and later (here):
SKVideoNode *introVideoNode = [SKVideoNode videoNodeWithFileNamed:#"intro.mp4"];
But crashes with:
+[SKVideoNode videoNodeWithFileNamed:]: unrecognized selector sent to class
Now, everything works fine in both iOS 8 and 9 if I initialize with an AVPlayer instead:
SKVideoNode* introVideoNode = [[SKVideoNode alloc] initWithAVPlayer:player];
Has anyone else encountered this? Is this a SpriteKit bug with iOS 8?
I can show a AGSPictureMarkerSymbol* on iOS 6.1 simulator, but when running in debug with the device (iPhone 4, iOS 6.1), even though the code is "read" and no warning or exception appears, the marker just doesn't appear. The code is the following:
AGSPictureMarkerSymbol* locker = [[AGSPictureMarkerSymbol alloc] initWithImageNamed:#"locker.png"];
AGSPoint* point = [[AGSPoint alloc] initWithX:coord.x y:coord.y spatialReference:self.mapView.spatialReference];
[self.lockersLayer addGraphic:[[AGSGraphic alloc] initWithGeometry:point symbol:locker attributes:nil infoTemplateDelegate:nil]];
As a reference, this self.lockersLayer has also lots of AGSTextSymbol* and they show up just fine.
Thank you.
The problem was with the locker.png file. Don't know exactly what the problem was, but after changing it to another image, it started showing up on the device.
I have created UITableView project in XCode 4.6 with iOS 6.1 SDK, and set target sdk to 5.1, when the app calling dequeueReusableCellWithIdentifier in cellForRowAtIndexPath function, the app throw a exception, the simulator is 5.1, on simulator 6.x is ok.
1:
[UITableView dequeueReusableCellWithIdentifier:forIndexPath:]: unrecognized selector sent to instance
2:Terminating app due to uncaught exception NSInvalidArgumentException, reason: -[UITableView dequeueReusableCellWithIdentifier:forIndexPath:]: unrecognized selector sent to instance
1. dequeueReusableHeaderFooterViewWithIdentifier
Availability
Available in iOS 2.0 and later.
-> Minimum iOS version required to run this function is iOS 2.0
2 .dequeueReusableCellWithIdentifier:forIndexPath:
Availability
Available in iOS 6.0 and later.
-> Minimum iOS version required to run this function is iOS 6.0
EDIT
IF your want to use this function the you can check your current device version and then implement this
NSString *currSysVer = [[UIDevice currentDevice] systemVersion];
NSLog(#"curr version = %f",[currSysVer floatValue]);
if ([currSysVer floatValue] >= 6) {
//iOS 6.0 and later code
// dequeueReusableCellWithIdentifier:forIndexPath:
}
else{
//dequeueReusableHeaderFooterViewWithIdentifier
}
If you look at the Apple documentation, you'll see that dequeueReusableCellWithIdentifier: forIndexPath: came in with iOS 6.0.
That means if you try to call this method on iOS 5.X devices, it's going to throw an exception.
It would be better if you used the older "dequeueReusableCellWithIdentifier:" call if possible.
One big difference between the two calls is that the latter (older) one can return nil, in which case you need to alloc/init a new reuseable cell.
I have developed an application using last SDK (4.3) and XCODE 4. I have tried this application on iPhone 4 and 3GS but always with IOS 4.3 on them.
Now I try to test my application on a 3G Iphone with IOS 3.1.3. To to that I declare "IOS Deployment Target" to be 3.1.
But their are compilation errors for the following pieces of code :
UIDevice* device = [UIDevice currentDevice];
BOOL backgroundSupported = NO;
if ([device respondsToSelector:#selector(isMultitaskingSupported)])
backgroundSupported = device.**multitaskingSupported**;
if (backgroundSupported)
[request setShouldContinueWhenAppEntersBackground:YES];
Compilation error : "Request for member 'multitaskingSupported' in something not a structure or union
And : "ASIFormDataRequest may not respond o ' - setShouldContinueWhenAppEntersBackground'
if ([[UIApplication sharedApplication] respondsToSelector:#selector(applicationState)] && [[UIApplication sharedApplication] applicationState] == **UIApplicationStateBackground**) {
...
}
Compilation error : "UIApplicationStateBackground undeclared first use in this function)
I do want to keep these behaviors for IOS4. How can I manage to have this compiled for target 3.1 ?
Thanks for your help !
kheraud
Make sure that, in your project or target info box, you have Base SDK set to iOS 4.2, and iOS Deployment Target set to iOS 3.1. It sounds to me like your Base SDK is set wrong.
i'm trying to add printing features to an ios app.
while printing itself works fine, and the app works on ios > 4, i haven't figured out yet how to keep the ios 3.1 compatibility...
i guess the issue is this: completionHandler:(UIPrintInteractionCompletionHandler)
A block of type UIPrintInteractionCompletionHandler that you implement to handle the
conclusion of the print job (for instance, to reset state) and to
handle any errors encountered in printing.
once i add the block:
void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) =
^(UIPrintInteractionController *printController, BOOL completed, NSError *error) {
};
the app won't even launch on iOS 3.1
probably because blocks aren't available there.
yes, i made sure that this code won't be run when launched on iOS 3.1...
if (([[[UIDevice currentDevice] systemVersion] floatValue] >= 4.2) && ([UIPrintInteractionController isPrintingAvailable]))
so i wonder if there's a way to have printing support for iOS >4.2, but keeping it to run on iOS 3.1?
maybe there's a way to use a method instead of the "block"?
or how would be the correct way to have printing available on supported iOS devices, and remain backwards compatible to iOS 3.1?
just add -weak_framework UIKit to the project settings under "Other Linker Flags" and make sure you use conditional code for printing API.
Conditional code should check feature availability, not OS version:
if (NSClassFromString(#"UIPrintInteractionController")){
void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) =
^(UIPrintInteractionController *printController, BOOL completed, NSError *error) {
};
}
Set your project target to iOS 3, and you're good to go.
The best practice for detecting if AirPrint is available is to use NSClassFromString. If you use this method in general, then you always know if exactly the class you want is available, without having to hard-code which features correspond with which version. Example code:
Class printControllerClass = NSClassFromString(#"UIPrintInteractionController");
if (printControllerClass) {
[self setupCanPrintUI];
} else {
[self setupCannotPrintUI];
}
That way your app can still work on previous iOS versions, although it won't be able to print from them.
I've been able to use this technique and run it on an iOS 3.0 device without any problems with the block code (the ^-based stuff). In my build settings, I have the Base SDK set to iOS 4.2, and the Deployment Target set to iOS 3.0.
I posted a sample Xcode project at the end of this blog post on printing in iOS. This is the project that successfully runs for me on a device with iOS 3.0 and another device with iOS 4.2. You may have to change the bundle identifier in the info.plist to get the code-signing to work for you, but that's independent of the printing stuff.
Set Deployment Target in your Project Settings to iOS 3.x. However, set the Base SDK to 4.2. Now you can use the 4.2 classes and iPhones running 3.x can install your app too.
Keep in mind that when you use a 4.2 class on an iPhone 3.x, the application will crash (so keep checking the system version on-the-go).
NSComparisonResult order = [[UIDevice currentDevice].systemVersion compare:#"3.2" options: NSNumericSearch];
if (order == NSOrderedSame || order == NSOrderedDescending && [[UIDevice currentDevice]isMultitaskingSupported]) {
// >4.2
}
else {
//< 4.2
}
Note:
also change UIKit framework setting from "required" to "weak" this will help you to run application on iOs < 4.2 as well as iOs >= 4.2