logout and authroization

gistfile1.m

//============================
// mixi setup
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    _mixi = [[Mixi sharedMixi] setupWithType:kMixiApiTypeSelectorGraphApi
                                    clientId:@"87b9651a2291e4853ac0"
                                      secret:@"98866989c89c42e47d7d38394637faa84341ebb4"
                                       appId:@"piccollage"];
    [_mixi restore];
    [_mixi reportOncePerDay];

    //.....other setup
}
//============================
// mixi logout buttonPressed
- (void)logout
{
    [_mixi logout];
    [self cancelImagePicker];
}


//===========================
// authorization
- (void)presentMixiPicker
{
    Mixi *mixi = [Mixi sharedMixi];
    if (![mixi isAuthorized]) {
            NSArray *permissions = 
                [NSArray arrayWithObjects:@"r_profile", @"r_photo", @"w_photo", @"w_voice", @"r_voice", nil];
        if (![mixi authorizeForPermissions:permissions]) {
            MixiWebViewController *vc = MixiUtilDownloadViewController(self, @selector(closeDownloadView:));
            [self presentModalViewController:vc animated:YES];
        }
    }
    else {
       // show mixi image picker
    }
}