如何在 Android 上显示是/否对话框? [英] How to display a Yes/No dialog box on Android?

问题描述

是的，我知道有 AlertDialog.Builder，但我很震惊地知道在 Android 中显示对话框有多么困难(好吧，至少对程序员不友好).

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 .NET 开发人员，我想知道是否有以下 Android 等效项?

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

if (MessageBox.Show("Sure?", "", MessageBoxButtons.YesNo) == DialogResult.Yes){
    // Do something...
}

推荐答案

AlertDialog.Builder 确实不难使用.一开始肯定有点吓人，但是一旦您使用过它，它既简单又强大.我知道你说过你知道如何使用它，但这里只是一个简单的例子:

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();

如果您有其他应该执行相同操作的是/否框，您也可以重复使用该 DialogInterface.OnClickListener.

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

如果您从 View.OnClickListener 中创建对话框，您可以使用 view.getContext() 来获取上下文.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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