using Friend.

Classes/Friend.h

@@ -20,11 +20,11 @@
    NSDate *last_update;
 }
 
-@property (nonatomic, assign) NSString *name;
-@property (nonatomic, assign) NSString *image_url;
-@property (nonatomic, assign) UIImage *image;
-@property (nonatomic, assign) CLLocation *location;
-@property (nonatomic, assign) NSDate *last_update;
+@property (nonatomic, retain) NSString *name;
+@property (nonatomic, retain) NSString *image_url;
+@property (nonatomic, retain) UIImage *image;
+@property (nonatomic, retain) CLLocation *location;
+@property (nonatomic, retain) NSDate *last_update;
 
 - (id) initWithName:(NSString *)nm;
 - (void) update; // retrieve latest information from the server

Classes/Friend.m

@@ -58,4 +58,17 @@ - (void) cacheImage
 {
 }
 
+- (BOOL) isEqual:(id) other
+{
+   NSLog(@"Friend:isEqual");
+   Friend *other_friend = (Friend *)other;
+   return [name isEqualToString:other_friend.name];
+}
+
+- (NSString *) description
+{
+   return [NSString stringWithFormat:@"Friend %p: name=%@", self, name];
+   //return [NSString stringWithFormat:@"Friend %p: name=%@", self, @"hoge"];
+}
+
 @end

Classes/FriendsPickViewController.m

@@ -11,6 +11,7 @@
 #import "TwitterFriends.h"
 #import "AppDelegate.h"
 #import "MySelf.h"
+#import "Friend.h"
 
 @interface FriendsPickViewController (Private)
 - (UIImage *) getIcon:(NSDictionary *)user;
@@ -61,11 +62,12 @@ - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(N
    cell.accessoryType = UITableViewCellAccessoryNone;
 
    NSDictionary *user = [twitter_friends objectAtIndex:indexPath.row];
+   Friend *friend = [[[Friend alloc] initWithName:[user objectForKey:@"screen_name"]] autorelease];
    UIImage *img = [self getIcon:user];
    cell.imageView.image = img;
-   cell.textLabel.text = [user objectForKey:@"screen_name"];
+   cell.textLabel.text = friend.name;
 
-   if ([my_self.friends containsObject:[user objectForKey:@"screen_name"]])
+   if ([my_self.friends containsObject:friend])
       cell.accessoryType = UITableViewCellAccessoryCheckmark;
 
    return cell;
@@ -75,17 +77,19 @@ - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath
 {
    NSDictionary *user = [twitter_friends objectAtIndex:indexPath.row];
    NSString *friend_name = [user objectForKey:@"screen_name"];
+   Friend *friend = [[[Friend alloc] initWithName:friend_name] autorelease];
+
    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
 
-   if ([my_self.friends containsObject:friend_name]) {
-      [my_self.friends removeObject:friend_name];
+   if ([my_self.friends containsObject:friend]) {
+      [my_self.friends removeObject:friend];
       cell.accessoryType = UITableViewCellAccessoryNone;
    } else  {
-      [my_self.friends addObject:friend_name];
+      [my_self.friends addObject:friend];
       cell.accessoryType = UITableViewCellAccessoryCheckmark;
    }
 
-   [[NSUserDefaults standardUserDefaults] setObject:my_self.friends forKey:DR_FRIENDS];
+   //[[NSUserDefaults standardUserDefaults] setObject:my_self.friends forKey:DR_FRIENDS];
 }
 
 #pragma mark others

Classes/MySelf.m

@@ -88,10 +88,12 @@ - (NSArray *) twitterFriends
 
 - (void) addFriend:(Friend *)friend
 {
+   [friends addObject:friend];
 }
 
 - (void) removeFriend:(Friend *)friend;
 {
+   [friends removeObject:friend];
 }
 
 - (void) saveFriends