[英]ios open modal from segue from a programmatically created button?
我正在創建一個按鈕,並將其添加到我的工具欄中,如下所示:
UIButton *sendButtzon = [UIButton buttonWithType:UIButtonTypeRoundedRect];
sendButtzon.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin;
[sendButtzon setTitle:@"More" forState:UIControlStateNormal];
sendButtzon.frame = CGRectMake(toolBar.bounds.size.width - 18.0f,
6.0f,
58.0f,
29.0f);
[toolBar addSubview:sendButtzon];
如何打開一個新的viewController(我有一個名為“ MoreView”的名稱)?
您實現以下操作方法:
-(void)buttonPressed:(UIButton*)sender
{
[self performSegueWithIdentifier:@"MoreView" sender:sender];
}
然后像這樣將其鏈接到您的按鈕(將此行添加到您問題中的代碼中):
[sendButtzon addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
這將導致在按鈕上的點擊以調用buttobPressed:
方法,該方法反過來執行您在情節buttobPressed:
定義的segue。
為此,您必須在故事板上定義名稱為“ MoreView”的序列。
否則,您必須像這樣在按鈕單擊上創建UIViewControler。
-(void)buttonPressed:(UIButton*)sender
{
UIViewController *destinationController = [[UIViewController alloc] init];
[self presentModalViewContrller:destinationController animated:YES];
}
或創建View Controller表單故事板。
-(void)buttonPressed:(UIButton*)sender
{
UIViewController *destinationController = [self.storyboard instantiateViewContrllerWithIdentifier:@"DestinationViewController "];
[self presentModalViewContrller:destinationController animated:YES];
}
每個UIViewController故事板都有屬性。
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