当另一个视图显示时，如何使我的背景视图变暗? [英] How to make my background view to be dark when the another view is showing?

问题描述

我有一个iPhone应用程序，在其中单击一个按钮，我正在显示一个类似于alertview的视图.那时我希望剩余的视图(背景)成为一个阴影，就像我们在显示alertview时看到的背景一样有人可以帮助我实现这一目标吗?

I have an iphone application in which in a button click i am showing a view like an alertview.at that time i want my remaining views (background) to be a shadow one,like as we see the background when showing the alertview.Can anybody help me to achieve this?

推荐答案

这很简单，使新视图成为视图的子视图，该视图覆盖全屏(alpha设置为0.7或您选择的颜色)，然后呈现此视图，则后面的所有内容都应变暗.

This is rather simple, make your new view a sub view of a view that covers the full screen with alpha set to 0.7 or something and the color of your choosing, then present this view and everything behind should be darkened.

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