IOS获取手机设备所有应用

//返回一个数组
 1 NSMutableArray *applist = [[NSMutableArray alloc]init];

     NSString *pathOfApplications = @"/var/mobile/Applications";
     // all applications
     NSArray *arrayOfApplications = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:pathOfApplications error:nil];

     for (NSString *applicationDir in arrayOfApplications) {

         // path of an application
         NSString *pathOfApplication = [pathOfApplications stringByAppendingPathComponent:applicationDir];
         NSArray *arrayOfSubApplication = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:pathOfApplication error:nil];
         // seek for *.app
         for (NSString *applicationSubDir in arrayOfSubApplication) {
             if ([applicationSubDir hasSuffix:@".app"]) {// *.app
                 NSString *path = [pathOfApplication stringByAppendingPathComponent:applicationSubDir];
                 path = [path stringByAppendingPathComponent:@"Info.plist"];
                 // so you get the Info.plist in the dict
                 NSMutableDictionary *dict = [[NSDictionary dictionaryWithContentsOfFile:path]mutableCopy];
                 // code to analyzing the dict.
                 dict[@"path"] = [pathOfApplication stringByAppendingPathComponent:applicationSubDir];
                 if (ARRAY_NOT_EMPTY(dict[@"SBAppTags"])) {
                     NSArray *tags = dict[@"SBAppTags"];
                     if ([tags containsObject:@"hidden"]) {
                         [dict autorelease];
                         continue;
                     }
                 }
                 [applist addObject:dict];
                 [dict release];

             }
         }
     }

     return [applist autorelease];