如何显示在Android中是/否对话框？ [英] How to display a Yes/No dialog box in Android?

问题描述

是的，我知道有AlertDialog.Builder，但我才知道自己有多难（好吧，至少不是程序员友好的），以显​​示Android的对话框。

Yes I know there's AlertDialog.Builder, but I'm shocked to know how difficult (well, at least not programmer-friendly) to display a dialog in Android.

我曾经是一个.NET开发人员，我想知道是否有任何的Andr​​oid当量以下的？

I used to be a .Net developer, and I'm wondering is there any Android-equivalent of the following?

if (MessageBox.Show("Are You Sure?", "", MessageBoxButtons.YesNo) == DialogResult.Yes)

{

                //Do something...

}

感谢您的输入。

Thanks for your input.

推荐答案

AlertDialog.Builder真的不是那么难使用。这是一个有点吓人首先肯定的，但一旦你使用它一下它的结构简单，功能强大。我知道你说你知道如何使用它，但这里只是一个简单的例子呢：

AlertDialog.Builder really isn't that hard to use. It's a bit intimidating at first for sure, but once you've used it a bit it's both simple and powerful. I know you've said you know how to use it, but here's just a simple example anyway:

DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
        switch (which){
        case DialogInterface.BUTTON_POSITIVE:
            //Yes button clicked
            break;

        case DialogInterface.BUTTON_NEGATIVE:
            //No button clicked
            break;
        }
    }
};

AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setMessage("Are you sure?").setPositiveButton("Yes", dialogClickListener)
    .setNegativeButton("No", dialogClickListener).show();

您还可以重复使用 DialogInterface.OnClickListener 如果你有其他的是/否框，应该做同样的事情。

You can also reuse that DialogInterface.OnClickListener if you have other yes/no boxes that should do the same thing.

如果你从一个 View.OnClickListener ，您可以使用 view.getContext（）获取上下文。或者您可以使用 yourFragmentName.getActivity（）。

If you're creating the Dialog from within a View.OnClickListener, you can use view.getContext() to get the Context. Alternatively you can use yourFragmentName.getActivity().

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