在 xamarin.forms 中自定义下拉（选择器）列表

Question

I am working on xamarin.forms. I am creating an app for android. In app I have a dropdown list. I am using Picker for it. I customized it to look like dropdown. Now I need to make the first Index item to nonselactable. Means user can not select the first item. If user click on it nothing should happen. But currently when user click on the first index dropdown gets collapsed.

One more thing that I have to add in dropdown is a Cross button at index 1. Means at index 1, on left side there will be Cross button and at center there will be text like Select item. And this whole row should not be selctable. If user click at cross button dropdown should collapsed.

Anyone have idea how I can do this?

Answer 1

您可以将列表视图用于下拉列表并根据需要控制其可见性。我遇到了类似的情况，我自定义列表视图以制定下拉列表。我想了解关于 Picker 的另一件事。您的选择器是否只接受或添加字符串，或者您可以自定义它接受意见或控制？