使用嵌套數組設置合成數組導致內存泄漏

Question

爲什麼下面的代碼在iPhone應用程序中導致內存泄漏？

下面所有初始對象泄漏，包括數組，字符串和數字。所以，我認爲它與合成數組屬性沒有釋放對象有關，當我在第二次和隨後調用這段代碼時再次設置屬性時。

下面是代碼：

「控制器」（下圖）是我的自定義視圖控制器類，我有一個參考，而我用這個代碼片段設置：

sqlite3_stmt *statement; 
NSMutableArray *foo_IDs = [[NSMutableArray alloc] init]; 
NSMutableArray *foo_Names = [[NSMutableArray alloc] init]; 
NSMutableArray *foo_IDsBySection = [[NSMutableArray alloc] init]; 
NSMutableArray *foo_NamesBySection = [[NSMutableArray alloc] init]; 

// Get data: 
NSString *sql = @"select distinct p.foo_ID, p.foo_Name from foo as p "; 
if (sqlite3_prepare_v2(...) == SQLITE_OK) { 
    while (sqlite3_step(statement) == SQLITE_ROW) { 
     int p_id; 
     NSString *foo_Name; 

     p_id = sqlite3_column_int(statement, 0); 
     char *str2 = (char *)sqlite3_column_text(statement, 1); 
     foo_Name = [NSString stringWithCString:str2]; 

     [foo_IDs addObject:[NSNumber numberWithInt:p_id]]; 
     [foo_Names addObject:foo_Name]; 
    } 
    sqlite3_finalize(statement); 
} 

// Pass the array itself into another array: 
// (normally there is more than one array in each array) 
[foo_IDsBySection addObject: foo_IDs]; 
[foo_NamesBySection addObject: foo_Names]; 

[foo_IDs release]; 
[foo_Names release]; 

// Set some synthesized properties (of type NSArray, nonatomic, 
// retain) in controller: 
controller.foo_IDsBySection = foo_IDsBySection; 
controller.foo_NamesBySection = foo_NamesBySection; 

[foo_IDsBySection release]; 
[foo_NamesBySection release]; 

謝謝任何幫助！

Answer 1

該代碼在快速檢查時看起來正確。

顯示您的控制器類的dealloc;你在哪裏釋放物體？