使用xibs,您可以调用不同的初始化程序:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
// Fetch Note...
// Initialize Edit Note View Controller with the fetched Note
EditNoteViewController *vc = [[EditNoteViewController alloc] initWithNote:note];
// Push View Controller onto Navigation Stack
[self.navigationController pushViewController:vc animated:YES];
}
这使我可以将变量(在EditNoteViewController中)保持 private 状态,并且还可以为某些变量设置默认值,例如
- (id)initWithNote:(Note *)note {
// ....
if (self) {
self.note = note;
self.isEditing = YES;
}
return self;
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
//...
if (self) {
self.isEditing = NO;
}
return self;
}
我现在正在尝试使用情节提要:
请尽可能明确
最佳答案
您应该使用prepareForSegue。仅在接收View Controller中公开您需要的内容
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Prepare for next view controller
if ([segue.identifier isEqualToString:@"someThing"]) {
SomeThingViewController *viewController = segue.destinationViewController;
viewController.someProperty = @"something else";
}
}
属性someProperty将需要在SomeThingViewController的标头中公开
@property (nonatomic, strong) NSString *someProperty;
要设置默认值,请检查接收视图控制器的viewDidLoad中的属性值
if (someProperty==nil) someProperty = @"Default";
关于iphone - 从xib移到 Storyboard 时的封装?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/17184061/