如何制作 iPhone 下拉按钮 [英] How to make an iPhone dropdown-looking button

问题描述

我在许多应用程序(包括 Turf Wars)上看到了一个类似下拉菜单的按钮，它模拟了带有选择器的下拉菜单.我需要在我的应用中使用相同的功能，但我不太确定最好的方法是什么.

I've seen a dropdown-like button on many apps, including Turf Wars, that simulates a dropdown with a picker. I need to use the same functionality in my app, but I'm not too sure what the best way to go about it may be.

示例:

我想我可以制作两个图像并将它们设置为不同状态的 UIButtons 背景图像，并让按钮打开一个选择器视图.

I figured I could make two images and set them as a UIButtons background image for the different states and have the button open a pickerview.

我们将不胜感激.

杆

推荐答案

您可以使用带有图像的按钮，例如下拉图像.您可以在隐藏的按钮上放置一个选择器.在单击事件中，您将显示选择器.在选择器上选择后，您必须更新按钮的文本值并再次隐藏选择器.希望对你有帮助...

You can use a button with the image like dropdown image. And you can place a picker over that button hidden. In the click event you will show the picker. And after selection on picker you have to update the text value of the button and hide the picker again. Hope it helps you...

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