IOS Novice Guide added in the app, the first launch of the application appears, the back does not appear

1, found in the appdelegate.m "application:didfinishlaunchingwithoptions:"

Judging by the nsuserdefaults.

if   (![ [ nsuserdefaults standarduserdefaults]  boolforkey

        [[ standarduserdefaults: yes forkey: Span style= "margin:0px;padding:0px;" >@ "everlaunched"

        [[ standarduserdefaults: yes forkey: Span style= "margin:0px;padding:0px;" >@ "Firstlaunch"

NSLog(@ "first launch");

}Else {

        [[ standarduserdefaults: no forkey: Span style= "margin:0px;padding:0px;" >@ "Firstlaunch"

NSLog(@ "second launch");

}

2, in Rootviewcontroller's Viewwillappear: The method inside to add

if   ([[ nsuserdefaults standarduserdefaults: @ "Firstlaunch" ]) {

        [[ standarduserdefaults: no forkey: Span style= "margin:0px;padding:0px;" >@ "Firstlaunch"

         userguidecontroller *userguide = [[[ Userguidecontroller]  ]  autorelease ";

[self presentmodalviewcontroller: userguide animated:YES];

}

3, in the Settings page can also add the same view, so that users can view.

This article is from the "zhuoking" blog, make sure to keep this source http://9951038.blog.51cto.com/9941038/1746336

IOS Novice Guide added in the app, the first launch of the application appears, the back does not appear