我遇到了内存泄漏:
[UIPickerTableViewTitleCell initWithStyle:resuableIdentifier];
和
NSConcentrateMutableAttributedString.
问题是我没有实现这个委托(delegate)。执行此操作后,现在内存泄漏消失了。这些信息可能对其他人有帮助,因为我花了 16 个小时才弄清楚这个问题。
// Do something with the selected row.
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view {
// Get the text of the row.
NSString *rowItem = [NSString stringWithFormat:@" %@",[machineData objectAtIndex:row]];
// Create and init a new UILabel.
// We must set our label's width equal to our picker's width.
// We'll give the default height in each row.
UILabel *lblRow = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, 0.0f, [pickerView bounds].size.width, 44.0f)];
// Make the text color red.
[lblRow setTextColor: [UIColor blackColor]];
[lblRow setFont:[UIFont boldSystemFontOfSize:20]];
// Center the text.
[lblRow setTextAlignment:UITextAlignmentLeft];
// Add the text.
[lblRow setText:rowItem];
// Clear the background color to avoid problems with the display.
[lblRow setBackgroundColor:[UIColor clearColor]];
// Return the label.
return lblRow;
}
最佳答案
感谢您的信息。被这个泄漏弄糊涂了。只有很少的评论:
可能 lblRow 应该自动释放:
return [lblRow autorelease];
[pickerView rowSizeForComponent:component]
可用于获取新标签的大小。
关于iphone - iOS6 UIPickerView 内存泄漏问题。,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/13045423/