Bro*_*Eye 29 xcode storyboard ios segue
我在一个故事板上有太多的观点,导致它运行得很慢.我被告知这个问题的解决方案是将一个故事板分成多个故事板.谁能告诉我如何通过按钮从故事板1的视图到故事板2中的视图?
小智 26
在Swift(iOS 8.1)中,这非常简单:
var storyboard: UIStoryboard = UIStoryboard(name: "Another", bundle: nil)
var vc = storyboard.instantiateViewControllerWithIdentifier("NextViewController") as AnotherViewController
self.showViewController(vc, sender: self)
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Swift 3更新:
let storyboard: UIStoryboard = UIStoryboard(name: "Another", bundle: nil)
let vc = storyboard.instantiateViewController(withIdentifier: "NextViewController") as! AnotherViewController
self.show(vc, sender: self)
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另一种使用segues(iOS SDK 6.0+)的解决方案,它可以按目的分隔代码并为自定义留出空间:
- (BOOL)shouldPerformSegueWithIdentifier:(NSString *)identifier sender:(id)sender {
//check/validate/abort segue
return YES;
}//optional
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
//sender - segue/destination related preparations/data transfer
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UIViewController *destination = [[UIStoryboard storyboardWithName:@"SomeStoryboard" bundle:nil] instantiateInitialViewController];
UIStoryboardSegue *segue = [UIStoryboardSegue segueWithIdentifier:@"identifier" source:self destination:destination performHandler:^(void) {
//view transition/animation
[self.navigationController pushViewController:destination animated:YES];
}];
UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];
[self shouldPerformSegueWithIdentifier:segue.identifier sender:cell];//optional
[self prepareForSegue:segue sender:cell];
[segue perform];
}
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注意: UITableViewCell *cell用于sender保持默认 TableViewController响应行为.
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