PhoneGap / iOS LocalNotification 应用程序在点击“查看”时崩溃

Question

我在这里遇到了麻烦：我将应用程序设置为不在后台运行，并且我正在使用我在 github 上找到的 localNotification 插件设置 dailyInterval 本地通知： https://github.com/phonegap/phonegap-plugins/tree/master/iPhone/LocalNotification

应用程序崩溃时弹出通知，然后我点击“查看”...看起来有东西正在发送，但它不知道发生了什么。我也不知道发生了什么，因为 Objective C 对我来说是一门外语。有人有什么想法吗？

--------- Console Log ----------

2011 年 7 月 29 日上午 11:05:48 下午确认 [12004] -[UIConcreteLocalNotification AbsoluteString]：无法识别的选择器发送到实例 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'

Answer 1

好的，我发现了问题，它在文件 AppDelegate.m 中，更准确地说在方法中：didFinishLaunchingWithOptions。该方法假设第一个选项参数是一个 url（但当我们通过本地通知启动应用程序时，它不是。快速而肮脏的修复方法是注释代码：

- (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];
}

Answer 2

如果有人感兴趣的话，我已经重写了 localNotification 插件 - 您现在可以添加回调和声音。我喜欢这个问题的解决方案，因为我也遇到过同样的事情。我也将它包含在 GIT 项目中。

吉特项目
https://github.com/DrewDahlman/Phonegap-LocalNotification

和一篇解释更改的博文
http://www.drewdahlman.com/meusLabs/?p=117

Answer 3

更好一点的解决方案是这样的：

- (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];
}

如果有人知道 PhoneGap 期望 URL 的密钥是什么，最好将 [keyArray objectAtIndex:0] 部分替换为实际密钥。

Answer 4

我对本地通知也有类似的问题。我选择的解决方案有点不同（尽管非常相似）。我正在使用检查本地通知启动选项（UIApplicationLaunchOptionsLocalNotificationKey）。

这是一个简短的示例：

- (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 文档：
http://developer.apple.com/library/mac/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/IPhoneOSClientImp/IPhoneOSClientImp.html