Objectivec 如何调整 UIModalPresentationFormSheet 的大小

发布于11月25日

我试图将模态视图控制器显示为UIPresentationFormSheet.视图出现了，但我似乎无法调整它的大小.我的XIB具有适当的高度和；宽度，但当我这样称呼它时，它似乎被覆盖了:

composeTweetController = [[ComposeTweet alloc] initWithNibName:@"ComposeTweet" bundle:nil];
composeTweetController.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentModalViewController:composeTweetController animated:TRUE];

有什么 idea 吗？我使用的是iPhone SDK 3.2 beta 4

推荐答案

在呈现模式视图后，可以调整其框架:

Tested in iOS 5.1 - 7.1

MyModalViewController *targetController = [[[MyModalViewController alloc] init] autorelease];
targetController.modalPresentationStyle = UIModalPresentationFormSheet;
targetController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;  //transition shouldn't matter
[self presentViewController:targetController animated:YES completion:nil];

if(floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_6_1){
     targetController.view.superview.frame = CGRectInset(targetController.view.superview.frame, 100, 50);
}else{
     targetController.view.frame = CGRectInset(targetController.view.frame, 100, 50);
     targetController.view.superview.backgroundColor = [UIColor clearColor];
}