How can I remove the badge number if I click on close button in push notification?

I am working with push notifications. When I get a notification it comes with 2 button, view and close. If I click on view it opens the app and when I click the close button it does nothing but a badge number appears on the app icon. Then when I open my app again that badge number should disappea开发者_Python百科r but it doesn't. How can I remove that badge number if user clicks on app icon? Thanx

put the following code somewhere in your applicationDidFinishLaunching or applicationDidBecomeActive.

[UIApplication sharedApplication].applicationIconBadgeNumber = 0;

What you could do is omit the badge key from your remote notification so that any badge number currently shown is removed. If you want a badge to show up if the user taps View, you can set a badge number using [UIApplication sharedApplication].applicationIconBadgeNumber.

But I'm not sure why you'd want to do this.