问题描述
我有一个活动MyActivity从MapActivity延伸。在包含布局我只能包括的MapView .xml文件
I have an activity MyActivity that extends from MapActivity. In the .xml file containing the layout I can only include the MapView
<com.google.android.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/trail_map_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:apiKey="key"
/>
不过,我需要找到另一种观点,即位于另一个.xml文件。不幸的是,findViewById返回null。我怎样才能得到我想要的看法?
However I do need to find another view that is located in another .xml file.Unfortunately, findViewById returns null.How can I get the view I am looking for?
非常感谢!
推荐答案
感谢您的评论,我明白你的意思,但我没有想检查旧值。我只是想获得一个指向这一观点。
Thanks for commenting, I understand what you mean but I didnt want to check old values. I just wanted to get a pointer to that view.
看着大人物code我刚刚发现了一个解决方法,您可以使用 LayoutInflater
访问布局的根。
Looking at somebodies code I have just found a workaround, you can access the root of a layout using LayoutInflater
.
在code是以下内容,其中这
是一种活动:
The code is the following, where this
is an Activity:
final LayoutInflater factory = getLayoutInflater();
final View textEntryView = factory.inflate(R.layout.landmark_new_dialog, null);
landmarkEditNameView = (EditText) textEntryView.findViewById(R.id.landmark_name_dialog_edit);
基本上得到充气的这
的背景下,通过充气方法来访问根视图,最后调用 findViewById
的布局的根视图。
Basically get the inflater for this
context, access the root view through inflate method and finally call findViewById
on the root view of the layout.
希望是有用的人!再见
这篇关于安卓:findviewbyid:发现鉴于ID时的观点是不通过的setContentView调用相同的布局的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!