【发布时间】:2015-11-03 17:34:21
【问题描述】:
我注意到我的一个自定义 UITableViewCell 正在泄漏。执行编辑时不会释放它,删除底部单元格并点击保存。这是我在表格中的顶部单元格(我称之为添加单元格)。一旦我的表格视图处于编辑模式,就会显示添加单元格,下面显示所有其他单元格并启用删除模式。现在,在执行删除操作并保存数据后,即使我的 table view 上的 dealloc 被调用,Add Cell 仍然会挂起。
我附上了我的代码和仪器屏幕截图(我已经从屏幕截图中删除了第一行(Malloc 调用)。对我来说,iOS 内部处理似乎有问题。请告知。
- (UITableViewCell *)tableView:(UITableView *)iTableView cellForRowAtIndexPath:(NSIndexPath *)iIndexPath {
MyTableViewCell *aCell = nil;
NSString *aCellType;
if (iIndexPath.row == 0 && self.inEditMode) {
aCellType = kMyAddCell;
aCell = (MyAddCell *)[iTableView dequeueReusableCellWithIdentifier:aCellType];
if (!aCell) {
aCell = [[MyAddCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:aCellType];
}
aCell.isGroupedView = YES;
aCell.delegate = self;
aCell.textLabel.text = @“Add More";
self.tableView.allowsSelectionDuringEditing = YES;
} else {
aCellType = kMyDefaultCell;
aCell = (MyTableViewCell *)[iTableView dequeueReusableCellWithIdentifier:aCellType];
if (!aCell) {
aCell = [[MyTableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:aCellType];
}
NSInteger anIndex = iIndexPath.row;
if (self.inEditMode) {
anIndex = anIndex - 1;
}
aCell.textLabel.text = @“Name";
aCell.selectionStyle = UITableViewCellSelectionStyleNone;
}
return aCell;
}
- (UITableViewCellEditingStyle)tableView:(UITableView *)aTableView editingStyleForRowAtIndexPath:(NSIndexPath *)iIndexPath {
return (iIndexPath.row == 0 && self.inEditMode) ? UITableViewCellEditingStyleNone : UITableViewCellEditingStyleDelete;
}
- (BOOL)tableView:(UITableView *)iTableView canEditRowAtIndexPath:(NSIndexPath *)iIndexPath {
return YES;
}
- (void)tableView:(UITableView *)iTableView commitEditingStyle:(UITableViewCellEditingStyle)iEditingStyle forRowAtIndexPath:(NSIndexPath *)iIndexPath {
if (iEditingStyle == UITableViewCellEditingStyleDelete) {
[self setSaveModeNavigationBar];
[self.tableView beginUpdates];
[self.enabledUsers removeObjectAtIndex:(self.inEditMode) ? iIndexPath.row - 1 : iIndexPath.row];
[self.tableView deleteRowsAtIndexPaths:@[iIndexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
[self.tableView endUpdates];
}
}
- (void)setEditing:(BOOL)iEditing animated:(BOOL)iAnimated {
[super setEditing:iEditing animated:iAnimated];
[self.navigationItem setHidesBackButton:YES animated:NO];
self.headerViewLabel.text = @“Edit Me";
UIBarButtonItem *aDoneButton = [[UIBarButtonItem alloc] initWithTitle:@“Done"
style:UIBarButtonItemStylePlain
target:self
action:@selector(cancelEditing)];
[self.navigationItem setRightBarButtonItem:aDoneButton];
[self.navigationItem setLeftBarButtonItem:nil animated:YES];
self.inEditMode = YES;
[self.tableView reloadData];
}
点击保存按钮后调用的代码:
self.requestHandler = [[MyRequestHandler alloc] initWithEndPoint:myEndPoint body:aPostBody successHandler:^(NSDictionary *iResponse) {
[aBlockSelf addNoDataOverlay];
} andErrorHandler:^(NSString *iMessage, NSString *iKey, NSInteger iErrorCode, BOOL iIsNetworkError) {
[aBlockSelf addNoDataOverlay];
}];
[self.requestHandler executeRequest];
仪器分配堆栈:
【问题讨论】:
标签: objective-c iphone uitableview cocoa-touch memory-management