DialogFragment OnCreateView 与 OnCreateDialog 的自定义布局 [英] Custom Layout for DialogFragment OnCreateView vs. OnCreateDialog

问题描述

我正在尝试使用我自己的布局创建一个 DialogFragment.

I'm trying to create a DialogFragment using my own Layout.

我见过几种不同的方法.有时布局在 OnCreateDialog 中设置如下:(我使用的是 Mono，但我已经有点习惯 Java)

I've seen a couple different approaches. Sometimes the layout is set in OnCreateDialog like this: (I'm using Mono but I've gotten somewhat used to Java)

public override Android.App.Dialog OnCreateDialog (Bundle savedInstanceState)
{
    base.OnCreateDialog(savedInstanceState);
    AlertDialog.Builder b = new AlertDialog.Builder(Activity);
        //blah blah blah
    LayoutInflater i = Activity.LayoutInflater;
    b.SetView(i.Inflate(Resource.Layout.frag_SelectCase, null));
    return b.Create();
}

第一种方法对我有用...直到我想使用 findViewByID.所以经过一番谷歌搜索后，我尝试了第二种方法，该方法涉及覆盖 OnCreateView

This first approach works for me... until I want to use findViewByID. so after a bit of googling I tried the second approach which involves overriding OnCreateView

所以我注释掉了设置布局的两行 OnCreateDialog 然后添加了这个:

So I commented out two lines of OnCreateDialog that set the Layout and then added this:

public override Android.Views.View OnCreateView (LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
    View v = inflater.Inflate(Resource.Layout.frag_SelectCase, container, false);
        //should be able to use FindViewByID here...
    return v;
}

这给了我一个可爱的错误:

which gives me a lovely error:

11-05 22:00:05.381: E/AndroidRuntime(342): FATAL EXCEPTION: main
11-05 22:00:05.381: E/AndroidRuntime(342): android.util.AndroidRuntimeException: requestFeature() must be called before adding content

我被难住了.

推荐答案

第一种方法对我有用...直到我想使用 FindViewByID.

This first approach works for me... until I want to use FindViewByID.

我猜你没有将 findViewById() 范围限定为 inflate() 返回的视图，试试这个:

I would guess that you are not scoping findViewById() to the View returned by inflate(), try this:

View view = i.inflate(Resource.Layout.frag_SelectCase, null);
// Now use view.findViewById() to do what you want
b.setView(view);

return b.create();

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