Graphics Programs Reference
In-Depth Information
@property (nonatomic, strong) BNRItem *item;
@end
This table view controller will show a list of the available
BNRAssetType
s. Tapping a
button on the
DetailViewController
's
view
will display it. Implement the data
source methods and import the appropriate header files in
AssetTypePicker.m
.
(You've seen all this stuff before.)
#import "AssetTypePicker.h"
#import "BNRItemStore.h"
#import "BNRItem.h"
@implementation AssetTypePicker
@synthesize item;
- (id)init
{
return [super initWithStyle:UITableViewStyleGrouped];
}
- (id)initWithStyle:(UITableViewStyle)style
{
return [self init];
}
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section
{
return [[[BNRItemStore sharedStore] allAssetTypes] count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)ip
{
UITableViewCell *cell =
[tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:@"UITableViewCell"];
}
NSArray *allAssets = [[BNRItemStore sharedStore] allAssetTypes];
NSManagedObject *assetType = [allAssets objectAtIndex:[ip row]];
// Use key-value coding to get the asset type's label
NSString *assetLabel = [assetType valueForKey:@"label"];
[[cell textLabel] setText:assetLabel];
// Checkmark the one that is currently selected
if (assetType == [item assetType]) {
[cell setAccessoryType:UITableViewCellAccessoryCheckmark];
} else {
[cell setAccessoryType:UITableViewCellAccessoryNone];
}
return cell;
}
- (void)tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)ip
