首先,请原谅我的英语。
我正在学习 iPhone SDK、Obj-C 并尝试制作 UITableView 应用程序。但是滚动表格时我的应用程序崩溃了。我已经搜索但无法解决我的问题,所以我在这里发布我的问题并寻求您的帮助。
TMTMemberListTableViewController.h
@interface TMTMemberListTableViewController : UITableViewController
{
NSMutableArray *familyMembers;
sqlite3 *database;
}
@property (nonatomic, retain) NSMutableArray *familyMembers;
- (void) configureCell:(TMTFamilyMemberCell *)cell withFamilyMember:(TMTFamily *)member;
@end
TMTMemberListTableViewController.m
@interface TMTMemberListTableViewController (Private)
- (void) loadMemberListFromDatabase;
@end
@implementation TMTMemberListTableViewController
@synthesize familyMembers;
- (void) loadMemberListFromDatabase
{
familyMembers = [[NSMutableArray alloc] init];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"easycook.sqlite"];
if (sqlite3_open([path UTF8String], &database) == SQLITE_OK)
{
const char *sql = "SELECT member_id from family";
sqlite3_stmt *statement;
if (sqlite3_prepare_v2(database, sql, -1, &statement, NULL) == SQLITE_OK)
{
while (sqlite3_step(statement) == SQLITE_ROW)
{
NSString *memberID = [NSString stringWithUTF8String:(char *) sqlite3_column_text(statement, 0)];
TMTFamily *member = [[TMTFamily alloc] initWithMemberID:memberID database:database];
[familyMembers addObject:member];
[member release];
}
}
sqlite3_finalize(statement);
}
else
{
sqlite3_close(database);
NSAssert1(0, @"Failed to open database with message '%s'.", sqlite3_errmsg(database));
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.clearsSelectionOnViewWillAppear = NO;
self.navigationItem.rightBarButtonItem = self.editButtonItem;
[self loadMemberListFromDatabase];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [familyMembers count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
//static NSString *MyIdentifier = @"MyIdentifier";
TMTFamilyMemberCell *cell = (TMTFamilyMemberCell *)[tableView dequeueReusableCellWithIdentifier:nil];
if (cell == nil)
{
cell = [[[TMTFamilyMemberCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil] autorelease];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
TMTFamily *member = [familyMembers objectAtIndex:indexPath.row];
// Set up the cell
[self configureCell:cell withFamilyMember:member];
[member release];
return cell;
}
- (void) configureCell:(TMTFamilyMemberCell *)cell withFamilyMember:(TMTFamily *)member
{
cell.familyMember = member;
cell.memberNameLabel.text = member.description;
}
- (void)dealloc
{
NSLog(@"Dealloc");
[familyMembers release];
[super dealloc];
}
滚动表时,我的应用程序在 EXC_BAD_ACCESS 处崩溃
[self configureCell:cell withFamilyMember:member];
和
cell.memberNameLabel.text = member.description;