Question

我想在推送通知上点击查看按钮时启动我的应用，但如果应用不在后台，我的应用会被终止。

这是来自控制台的错误消息。

Aug  9 10:35:41 unknown listingApp[4527] <Error>: -[__NSCFDictionary absoluteString]: unrecognized selector sent to instance 0x1a8b50
Aug  9 10:35:41 unknown listingApp[4527] <Error>: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary absoluteString]: unrecognized selector sent to instance 0x1a8b50'
*** Call stack at first throw:
(
    0   CoreFoundation                      0x36df764f __exceptionPreprocess + 114
    1   libobjc.A.dylib                     0x34050c5d objc_exception_throw + 24
    2   CoreFoundation                      0x36dfb1bf -[NSObject(NSObject) doesNotRecognizeSelector:] + 102
    3   CoreFoundation                      0x36dfa649 ___forwarding___ + 508
    4   CoreFoundation                      0x36d71180 _CF_forwarding_prep_0 + 48
    5   listingApp                          0x00002d09 -[AppDelegate application:didFinishLaunchingWithOptions:] + 220
    6   UIKit                               0x35c12821 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 772
    7   UIKit                               0x35c0cb65 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 272
    8   UIKit                               0x35be17d7 -[UIApplication handleEvent:withNewEvent:] + 1114
    9   UIKit                               0x35be1215 -[UIApplication sendEvent:] + 44
    10  UIKit                               0x35be0c53 _UIApplicationHandleEvent + 5090
    11  GraphicsServices                    0x3651be77 PurpleEventCallback + 666
    12  CoreFoundation                      0x36dcea97 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 26
    13  CoreFoundation                      0x36dd083f __CFRunLoopDoSource1 + 166
    14  CoreFoundation                      0x36dd160d __CFRunLoopRun + 520
    15  CoreFoundation                      0x36d61ec3 CFRunLoopRunSpecific + 230
    16  CoreFoundation                      0x36d61dcb CFRunLoopRunInMode + 58
    17  UIKit                               0x35c0bd49 -[UIApplication _run] + 372
    18  UIKit                               0x35c09807 UIApplicationMain + 670
    19  listingApp                          0x00002b93 main + 78
    20  listingApp                          0x00002b0c start + 52
)
Aug  9 10:35:41 unknown UIKitApplication:co.isale.isale[0xc768][4527] <Notice>: terminate called after throwing an instance of '
Aug  9 10:35:41 unknown UIKitApplication:co.isale.isale[0xc768][4527] <Notice>: NSException
Aug  9 10:35:41 unknown UIKitApplication:co.isale.isale[0xc768][4527] <Notice>: '
Aug  9 10:35:41 unknown ReportCrash[4528] <Notice>: Formulating crash report for process listingApp[4527]
Aug  9 10:35:41 unknown com.apple.launchd[1] <Warning>: (UIKitApplication:co.isale.isale[0xc768]) Job appears to have crashed: Abort trap: 6

这是我的didFinishlaunchWithOptions

的开头

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{   

NSLog(@"didFinishLaunchingWithOptions");
viewController.webView = webView;
[viewController.view addSubview:webView];


// read from UISupportedInterfaceOrientations (or UISupportedInterfaceOrientations~iPad, if its iPad) from -Info.plist
NSArray* supportedOrientations = [self parseInterfaceOrientations:
                                           [[[NSBundle mainBundle] infoDictionary] objectForKey:@"UISupportedInterfaceOrientations"]];

// read from PhoneGap.plist in the app bundle
NSDictionary *temp = [[self class] getBundlePlist:@"PhoneGap"];
settings = [[NSDictionary alloc] initWithDictionary:temp];

viewController = [ [ PhoneGapViewController alloc ] init ];

NSNumber *useLocation          = [settings objectForKey:@"UseLocation"];
NSString *topActivityIndicator = [settings objectForKey:@"TopActivityIndicator"];


// The first item in the supportedOrientations array is the start orientation (guaranteed to be at least Portrait)
[[UIApplication sharedApplication] setStatusBarOrientation:[[supportedOrientations objectAtIndex:0] intValue]];

// push notification 
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound)];
// end of push notification

此代码来自另一个名为AppDelegate.m

的委托文件

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{


NSArray *keyArray = [launchOptions allKeys];
if ([launchOptions objectForKey:[keyArray objectAtIndex:0]]!=nil) 
{
    NSURL *url = [launchOptions objectForKey:[keyArray objectAtIndex:0]];
    self.invokeString = [url absoluteString];
    NSLog(@"listingApp launchOptions = %@",url);
}

return [super application:application didFinishLaunchingWithOptions:launchOptions];
}

请帮帮忙？非常感谢谢谢:)。

Answer 1

看起来你没有实现方法

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo

收到通知时会调用此方法。

Answer 2

您似乎在字典上调用absoluteString，您可能希望在NSURL对象上执行此操作。

重新提供最新的代码示例：

你正在做一些非常奇怪的事情，试图找到launchOptions字典中的第一个键。这不是如何使用词典。您应该直接使用密钥（在启动选项密钥下列出here），如下所示：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{

    NSURL *url = [launchOptions objectForKey:UIApplicationLaunchOptionsURLKey]

    if (url)
    {
        self.invokeString = [url absoluteString];
        NSLog(@"listingApp launchOptions = %@", url);
    }

    return [super application:application didFinishLaunchingWithOptions:launchOptions];
}

ios推送通知终止应用程序

2 个答案: