问题
I'm having trouble here: I have the app set to not run in the background, and I'm setting a dailyInterval localnotification using a localNotification plugin I found on github here: https://github.com/phonegap/phonegap-plugins/tree/master/iPhone/LocalNotification
The app crashes when the notification pops up, and I tap "View"... looks like something is being sent along and it doesn't know what's going on. I, also don't know what's going on since Objective C is a foreign language to me. Anyone have any ideas?
--------- Console Log ----------
7/29/11 11:05:48 AM Afternoon Affirmations[12004] -[UIConcreteLocalNotification absoluteString]: unrecognized selector sent to instance 0x5c22240
7/29/11 11:05:48 AM Afternoon Affirmations[12004] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIConcreteLocalNotification absoluteString]: unrecognized selector sent to instance 0x5c22240'
*** Call stack at first throw:
(
0 CoreFoundation 0x017f65a9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x0194a313 objc_exception_throw + 44
2 CoreFoundation 0x017f80bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x01767966 ___forwarding___ + 966
4 CoreFoundation 0x01767522 _CF_forwarding_prep_0 + 50
5 Afternoon Affirmations 0x00002f21 -[AppDelegate application:didFinishLaunchingWithOptions:] + 257
6 UIKit 0x002f7c89 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1163
7 UIKit 0x002f9d88 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 439
8 UIKit 0x00304617 -[UIApplication handleEvent:withNewEvent:] + 1533
9 UIKit 0x002fcabf -[UIApplication sendEvent:] + 71
10 UIKit 0x00301f2e _UIApplicationHandleEvent + 7576
11 GraphicsServices 0x020e5992 PurpleEventCallback + 1550
12 CoreFoundation 0x017d7944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
13 CoreFoundation 0x01737cf7 __CFRunLoopDoSource1 + 215
14 CoreFoundation 0x01734f83 __CFRunLoopRun + 979
15 CoreFoundation 0x01734840 CFRunLoopRunSpecific + 208
16 CoreFoundation 0x01734761 CFRunLoopRunInMode + 97
17 UIKit 0x002f97d2 -[UIApplication _run] + 623
18 UIKit 0x00305c93 UIApplicationMain + 1160
19 Afternoon Affirmations 0x00002d7f main + 127
20 Afternoon Affirmations 0x00002cf5 start + 53
)
7/29/11 11:05:48 AM UIKitApplication:com.InTheRooms.AfternoonAffirmations[0x9a52][12004] terminate called after throwing an instance of 'NSException'
回答1:
OK, I found the problem, it's in the file AppDelegate.m and more precisely in the method : didFinishLaunchingWithOptions. The method assumes that the first option parameters is an url (but it's not when we launch the app via a Local Notification. The quick and dirty fix is to comment the code :
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
//commented out because it makes the app crash at startup with local notification...
/*NSArray *keyArray = [launchOptions allKeys];
if ([launchOptions objectForKey:[keyArray objectAtIndex:0]]!=nil)
{
NSURL *url = [launchOptions objectForKey:[keyArray objectAtIndex:0]];
self.invokeString = [url absoluteString];
NSLog(@"Mosa_fr_en-busi launchOptions = %@",url);
}*/
return [super application:application didFinishLaunchingWithOptions:launchOptions];
}
回答2:
I've re-writen the localNotification plugin if anyone is interested - you can now add callbacks as well as sound. I like this fix for this problem as I have faced the same thing. I've also included it in the GIT project.
the GIT project https://github.com/DrewDahlman/Phonegap-LocalNotification
and a blog post explaining changes http://www.drewdahlman.com/meusLabs/?p=117
回答3:
A little bit better solution is something like this:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
NSArray *keyArray = [launchOptions allKeys];
if ([keyArray count] > 0) {
id option = [launchOptions objectForKey:[keyArray objectAtIndex:0]];
if ([option isKindOfClass:[NSURL class]]) {
NSURL *url = (NSURL *)option;
self.invokeString = [url absoluteString];
NSLog(@"ContactInbox launchOptions = %@",url);
}
}
return [super application:application didFinishLaunchingWithOptions:launchOptions];
}
If somebody knows what key PhoneGap expects to have for URL it's better to replace [keyArray objectAtIndex:0] part with actual key.
回答4:
I had a similar issue with local notifications. The solution that I chose is a bit different (though quite similar). I'm using a check for a local notification launch option (UIApplicationLaunchOptionsLocalNotificationKey).
Here is a short example:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UILocalNotification *localNotif = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if( localNotif )
{
// Do whatever you need to do with that local notitication
}
else
{
NSArray *keyArray = [launchOptions allKeys];
if ([launchOptions objectForKey:[keyArray objectAtIndex:0]]!=nil)
{
NSURL *url = [launchOptions objectForKey:[keyArray objectAtIndex:0]];
self.invokeString = [url absoluteString];
}
}
return [super application:application didFinishLaunchingWithOptions:launchOptions];
}
Apple Docs: http://developer.apple.com/library/mac/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/IPhoneOSClientImp/IPhoneOSClientImp.html
来源：https://stackoverflow.com/questions/6876559/phonegap-ios-localnotification-app-crashes-on-tapping-view