表查看内存泄漏?

时间:2014-04-07 14:19:10

标签: ios objective-c uitableview

我在iOS中使用表视图时遇到了一些内存问题。

我有一个像enter image description here这样的屏幕设置,所以有一个View Controller会转到另一个带有表视图的视图控制器。

每次我进入带有表视图的控制器并返回时,我的内存将继续增加大约1 MB。

因此,在一些屏幕更改中,内存使用量会变大 enter image description here

为什么会发生这种情况的任何想法?

由于

具有表视图的视图控制器的代码:

查看了加载方法:

 questionGroups = [[NSMutableArray alloc] init];

// Do any additional setup after loading the view.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [paths objectAtIndex:0];
NSString *databasePath = [path stringByAppendingPathComponent:@"databaseApp.sql"];

sqlite3 *database = NULL;
 if(sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK){


  const char *sql = "SELECT * FROM question_groups";
     sqlite3_stmt *statement;
     if(sqlite3_prepare_v2(database, sql, -1, &statement, NULL) == SQLITE_OK){


         while (sqlite3_step(statement) == SQLITE_ROW) {

             NSMutableArray *questionType = [[NSMutableArray alloc] init];

             NSString *groupName = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement, 1)];
             NSString *groupId = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement, 0)];

             [questionType addObject:groupId];
             [questionType addObject:groupName];

             [questionGroups addObject:questionType];

             questionType = nil;

         }


         sqlite3_finalize(statement);
         statement = nil;
     }

     sqlite3_close(database);

 }
database = NULL;

//populiranje liste
self.table.delegate = self;
self.table.dataSource = self;

单元格创建:

static NSString *CellIndentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIndentifier];

if(cell == nil){
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIndentifier];
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}

NSInteger row = indexPath.row;


cell.textLabel.text = [NSString stringWithFormat:@"%@ - %@",questionGroups[row][0],questionGroups[row][3]];

0 个答案:

没有答案