里面的LinearLayout的Andr​​oid TabHost [英] Android TabHost inside LinearLayout

问题描述

嘿...我试图创建的布局结构这样一个活动：

Hey... i'm trying to create an activity with the layout structure like this:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

    <TabHost android:id="@+id/tabHost"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        >
        <LinearLayout
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        >
            <TabWidget android:layout_width="fill_parent"
                android:layout_height="wrap_content" 
                android:id="@android:id/tabs" 
                /> 
            <FrameLayout
                android:id="@android:id/tabcontent"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                >
            </FrameLayout>
        </LinearLayout>
     </TabHost>

     <some code here>

</LinearLayout>

什么是错在这里？我得到的NullPointerException在我的活动

What is wrong here? I'm getting nullPointerException in my activity

public class TabsActivity extends Activity
{
    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.tabs);

        // Resources res = getResources();
        // TabHost tabHost = (TabHost)findViewById(R.id.tabHost);
   }
}

问题是与嵌套。存在与TabHost为主体的XML节点中的任何问题。 THX！

The problem is with nesting. There is no problem with the TabHost as the main XML node. Thx!

错误：

Error:

推荐答案

我也有类似的问题和解决方案是让 TabHost 并调用设置（）。很难说，如果这是你的问题就在这里。

I had a similar problem and the solution was to get the TabHost and call setup(). Hard to say if that's your problem here.

这篇关于里面的LinearLayout的Andr​​oid TabHost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IT屋！