內存雖然釋放的對象警告

請參閱下面的方法內存雖然釋放的對象警告

 -(void)addScrollView{ 
[self selectData]; 


scrollView=[[UIScrollView alloc]initWithFrame:CGRectMake(5, 00, 320, 480)]; 
int counter=5; 
float y=40.0f; 
int fullLength=[photoArray count]; 
int horizontal=320; 
int vertical=(fullLength/4)*80; 
int c1=1; 
for(int c=0;c<[photoArray count];c++){ 
    PhotoData *d=[photoArray objectAtIndex:c]; 
    //NSLog(d.photoPath); 
    if(c1==5){ 
     counter=5; 
     y=y+80.0f; 
     c1=1; 

    } 
    UIImage *img1=[[UIImage alloc]initWithContentsOfFile:d.photoPath]; 
    UIButton* button = [[UIButton alloc] init]; 
    button.tag=c; 

    [button setBackgroundImage:img1 forState:UIControlStateNormal]; 
     [button setFrame:CGRectMake(counter, y, 70.0, 70.0)]; 

    [button addTarget:self action:@selector(showDetail:) 
    forControlEvents:UIControlEventTouchUpInside]; 
    [scrollView addSubview:button]; 
    counter=counter+78.0f; 
    c1++; 
    [img1 release]; 
    [button release]; 

} 
[scrollView setContentSize:CGSizeMake(horizontal, vertical+200)]; 


    [self.view addSubview:scrollView]; 
    [scrollView release]; 

    }

也

   -(void)selectData{ 
//This method is defined to retrieve data from Database 
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *documentsPath = [paths objectAtIndex:0]; 
//Obtained the path of Documennt directory which is editable 

NSString *filePath = [documentsPath stringByAppendingPathComponent:@"memory.sql"]; 
//memory.sql is sqlite file which is used as local database 
photoArray=[[NSMutableArray alloc]init]; 


NSString *dbPath=filePath; 

sqlite3 *database; 

if(sqlite3_open([dbPath UTF8String], &database) == SQLITE_OK) { 

    // Setup the SQL Statement and compile it for faster access 
    const char *sqlStatement = "select * from photo "; 
    sqlite3_stmt *compiledStatement; 


    if(sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatement, NULL) == SQLITE_OK) { 

     //sqlite3_bind_int(compiledStatement, 1,memoryId); 

     //(compiledStatement, 1, [header UTF8String], -1, SQLITE_TRANSIENT); 

     while(sqlite3_step(compiledStatement) == SQLITE_ROW) {    
      PhotoData *data=[[PhotoData alloc]init]; 
      //create the MemoryData object to store the data of one record 

      //NSLog(@"Data is retrieved using mid=%i",memoryId); 
      // Read the data from the result row 

      int pId=sqlite3_column_int(compiledStatement, 1); 

      NSString *filePath=[NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)]; 
      ///filePath=[self retrievePath:filePath]; 

      [data setPhotoId:pId]; 
      [data setPhotoPath:filePath]; 
      //Store every object of MemoryData in t 
      [photoArray addObject:data]; 
      [filePath release]; 


     } // end of the while 


    } 
    sqlite3_finalize(compiledStatement); 
} 
sqlite3_close(database); 
NSLog(@"size of array is %i",[photoArray count]); 
tableArray=[[NSArray alloc]initWithArray:photoArray]; 
//convert the MutableArray to NSArray 


    }

，你可以看到，我釋放所有對象，爲什麼出現下列錯誤

2011-12-04 14:48:21.367 Memorable[110:707] Received memory warning. Level=2 
    2011-12-04 14:48:22.084 Memorable[110:707] Received memory warning. Level=2 
    2011-12-04 14:48:22.247 Memorable[110:707] Received memory warning. Level=2 
    2011-12-04 14:48:22.255 Memorable[110:707] Received memory warning. Level=2 
    2011-12-04 14:48:23.507 Memorable[110:707] Received memory warning. Level=1 
2011-12-04 14:48:27.188 Memorable[110:707] Received memory warning. Level=1 
    Program received signal: 「EXC_BAD_ACCESS」. 
warning: Unable to read symbols for /xcode3/Platforms/iPhoneOS.platform/DeviceSupport/4.3.1 (8G4)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (file not found).

來源

2011-12-04 Ali

我看不到你在任何地方發佈數據對象。

編輯：

的陳述不鬆開filepath因爲你不擁有它鈹。它是一個autorelease對象。

來源

2011-12-04 10:56:11

起初，你不應該釋放filePath，方法[NSString stringWithUTF8String...返回已經自動釋放對象。

您創建allocPhotoData對象，所以你需要發佈/自動釋放它

NSString *filePath=[NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)]; 

    [data setPhotoId:pId]; 
    [data setPhotoPath:filePath]; 
    [photoArray addObject:data]; 
    //[filePath release]; <-crash here 
    [data release]; // <-leaks were here

來源

2011-12-04 11:04:43 beryllium

內存雖然釋放的對象警告

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