iOS:背景透明的模态视图? [英] iOS : ModalView with background transparent?

问题描述

我想在 viewController 上显示一个模态视图.(它有一个导航控制器).

I want to show a modalview on a viewController. (which has a naviguation controller).

在我看来，我有文本和一个显示模态视图的按钮.

On my view i have text, and a button to show the modalview.

我创建了一个 .xib，其中包含我的模态视图(它是一个带有图像和标签的视图).

I created a .xib which contained my modalview (it's a view with an image and a label).

当我展示它时:

ShareController *controller =  [[ShareController alloc] initWithNibName:@"ShareController" bundle: nil];
controller.view.backgroundColor = [UIColor clearColor];
controller.modalPresentationStyle = UIModalPresentationFormSheet;
controller.modalTransitionStyle = UIModalTransitionStyleCoverVertical;

[self presentViewController:controller animated:YES completion:nil];

我有我的模态视图，但是，背景变黑了.. 我想总是看到我视图上的文本.(我试图设置 alpha 等.但没有运行:'()

i have my modalview, BUT, the background become black.. and i want to see always the text on my view. (i tried to set alpha, etc..; but NOTHING runs :'( )

有人帮我吗?

谢谢，

推荐答案

你可以查看iOS7的例子(见我的comm)或者你可以简单地试试这个:

you can check the iOS7 example (see my comm) or you can simple try this:

从你的展示"方法中删除这一行

remove this line from your "presenting" method

controller.view.backgroundColor = [UIColor clearColor];

现在，在 ShareController 的 viewDidLoad 中添加:

now, in viewDidLoad of the ShareController add:

 self.view.backgroundColor = [UIColor clearColor];
 self.modalPresentationStyle = UIModalPresentationCurrentContext;
 self.modalPresentationStyle = UIModalPresentationFormSheet;

PS

如果你有一个 navigationController... 使用

if you have a navigationController... use

[self.navigationController presentViewController:controller animated:YES completion:nil];

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