TableView從ARC創建殭屍autorelease

我在另一個表內部有一個表。我可以在沒有任何問題的情況下將單元格添加到「超類」和「子表」中 - 它們將顯示，滾動等。但是，當我嘗試與「子表」交互時（選擇其中一個文本框進行編輯）崩潰。我跑的程序殭屍工具，它backtraced崩潰這個代碼（我使用ARC）：TableView從ARC創建殭屍autorelease

- (UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    if (saveTheTable == nil) saveTheTable = tableView; 
    static NSString *licenseCellId = @"licenseID"; 
    UINib *nib = [UINib nibWithNibName:@"LicenseCell" bundle:nil]; 
    [tableView registerNib:nib forCellReuseIdentifier:licenseCellId]; 

    //This line causes the crash 
    LicenseCell *cell = [tableView dequeueReusableCellWithIdentifier:licenseCellId]; 

    cell.delegate = self; 
    [licenseFields replaceObjectAtIndex:indexPath.row withObject:cell]; 

    return cell; 
}

該負責呼叫者給出UITextField。看起來，「子表」正在被autoreleasepool排水管釋放。爲什麼會這樣，我該如何解決它？我嘗試存儲對單元格的強引用。

CNC中也許回溯將有助於

* thread #1: tid = 0x1f03, 0x017a309b libobjc.A.dylib`objc_msgSend + 15, stop reason = EXC_BAD_ACCESS (code=2, address=0x8) 
    frame #0: 0x017a309b libobjc.A.dylib`objc_msgSend + 15 
    frame #1: 0x003c7c7e UIKit`-[UITextField canBecomeFirstResponder] + 167 
    frame #2: 0x00405fe7 UIKit`-[UIResponder becomeFirstResponder] + 179 
    frame #3: 0x005e58fb UIKit`-[UITextInteractionAssistant setFirstResponderIfNecessary] + 208 
    frame #4: 0x005e75f8 UIKit`-[UITextInteractionAssistant oneFingerTap:] + 1989 
    frame #5: 0x005dfe29 UIKit`_UIGestureRecognizerSendActions + 143 
    frame #6: 0x005df133 UIKit`-[UIGestureRecognizer _updateGestureWithEvent:] + 379 
    frame #7: 0x005e03bf UIKit`-[UIGestureRecognizer _delayedUpdateGesture] + 46 
    frame #8: 0x005e2a21 UIKit`___UIGestureRecognizerUpdate_block_invoke_0541 + 57 
    frame #9: 0x005e297c UIKit`_UIGestureRecognizerApplyBlocksToArray + 277 
    frame #10: 0x005db3d7 UIKit`_UIGestureRecognizerUpdate + 1026 
    frame #11: 0x003401a2 UIKit`-[UIWindow _sendGesturesForEvent:] + 1121 
    frame #12: 0x00340532 UIKit`-[UIWindow sendEvent:] + 93 
    frame #13: 0x00326dc4 UIKit`-[UIApplication sendEvent:] + 464 
    frame #14: 0x0031a634 UIKit`_UIApplicationHandleEvent + 8196 
    frame #15: 0x01f9aef5 GraphicsServices`PurpleEventCallback + 1274 
    frame #16: 0x012b3195 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 53 
    frame #17: 0x01217ff2 CoreFoundation`__CFRunLoopDoSource1 + 146 
    frame #18: 0x012168da CoreFoundation`__CFRunLoopRun + 2218 
    frame #19: 0x01215d84 CoreFoundation`CFRunLoopRunSpecific + 212 
    frame #20: 0x01215c9b CoreFoundation`CFRunLoopRunInMode + 123 
    frame #21: 0x01f997d8 GraphicsServices`GSEventRunModal + 190 
    frame #22: 0x01f9988a GraphicsServices`GSEventRun + 103 
    frame #23: 0x00318626 UIKit`UIApplicationMain + 1163 
    frame #24: 0x0000274d trainingAttendance`main + 141 at main.m:16 
    frame #25: 0x000026b5 trainingAttendance`start + 53

來源

2012-06-26 Dustin

這個問題可能是LicenseCell。 – tia

零保留計數是由autorelease池漏...引起的。LicenseCell只是一個.xib – Dustin

您正在使用ARC嗎？ – tia

事實證明，像phix23說，這個問題是與registernib命令。這裏的新cellForRowAtIndexPath方法：

- (UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    if (saveTheTable == nil) saveTheTable = tableView; 
    static NSString *licenseCellId = @"licenseID"; 

    LicenseCell *cell = (LicenseCell *)[tableView dequeueReusableCellWithIdentifier:licenseCellId]; 
    if(cell == nil) { 
     NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"LicenseCell" owner:self options:nil]; 
     cell = (LicenseCell *)[nib objectAtIndex:0]; 
    } 

    cell.delegate = self; 
    [licenseFields replaceObjectAtIndex:indexPath.row withObject:cell]; 

    if (nibRetainer == nil) nibRetainer = [[NSMutableArray alloc] initWithObjects:cell, nil]; 
    else [nibRetainer addObject:cell]; 
    return cell; 
}

來源

2012-06-28 12:14:07 Dustin

TableView從ARC創建殭屍autorelease

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