FragmentTabHost图形布局不会呈现 [英] FragmentTabHost graphical layout doesn't render
问题描述
有一个简单的android.support.v4.app.FragmentTabHost图形布局从未呈现在Eclipse或Android的工作室。
控制台的错误我得到的是一致的:
异常渲染过程中提出的:没有标签出名的空标签
我使用的是最基础的XML文件:
< android.support.v4.app.FragmentTabHost
的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:ID =@机器人:ID / tabhost
机器人:layout_width =match_parent
机器人:layout_height =match_parent>
<的LinearLayout
机器人:方向=垂直
机器人:layout_width =match_parent
机器人:layout_height =match_parent>
< TabWidget
机器人:ID =@机器人:ID /标签
机器人:方向=横向
机器人:layout_width =match_parent
机器人:layout_height =WRAP_CONTENT
机器人:layout_weight =0/>
<的FrameLayout
机器人:ID =@机器人:ID / tabcontent
机器人:layout_width =0dp
机器人:layout_height =0dp
机器人:layout_weight =0/>
<的FrameLayout
机器人:ID =@ + ID / realtabcontent
机器人:layout_width =match_parent
机器人:layout_height =0dp
机器人:layout_weight =1/>
< / LinearLayout中>
< /android.support.v4.app.FragmentTabHost>
但同样的错误发生。
我只是想补充的上面或下面的标签控件和框架布局更多的意见。
我不那么在乎看到标签的内容;我只是想看到的我的布局的其余部分的 - 但问题是,没有其他意见呈现时, android.support.v4.app .FragmentTabHost
驻留在布局。
我已经阅读并试图从这个问题的答案后解决该问题:
<一href="http://stackoverflow.com/questions/13408709/android-tabs-at-the-bottom-with-fragmenttabhost">Android:与FragmentTabHost
标签底部
但我不认为这是我的问题;我不希望把一个TabWidget底部。
我的XML文件每隔一个完全打开。
同样的问题也发生在Android的工作室:
我有同样的渲染问题,以及编译错误
私人FragmentTabHost mTabHost;
mTabHost =(FragmentTabHost)findViewById(android.R.id.tabhost);
mTabHost.setup(HomeActivity.this,getSupportFragmentManager(),android.R.id.tabcontent);
mTabHost.addTab(mTabHost.newTabSpec(家)setIndicator(家),HomeFragment.class,空);
mTabHost.addTab(mTabHost.newTabSpec(mysheets)setIndicator(MySheets)。);
mTabHost.addTab(mTabHost.newTabSpec(书签)setIndicator(书签));
The graphical layout for a simple android.support.v4.app.FragmentTabHost never renders in either Eclipse or Android Studio.
The Console error I get is consistently:
Exception raised during rendering: No tab known for tag null
I'm using the most basic XML file:
<android.support.v4.app.FragmentTabHost
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TabWidget
android:id="@android:id/tabs"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0"/>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0"/>
<FrameLayout
android:id="@+id/realtabcontent"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
</android.support.v4.app.FragmentTabHost>
but the same error occurs.
I just wanted to add more views above or below the tab widget and frame layout.
I don't care so much about seeing the tab content; I just want to see the rest of my layout - but the problem is that NO OTHER VIEWS are rendered when a android.support.v4.app.FragmentTabHost
resides in the layout.
I've read and tried to resolve the issue from the answer to this post:
Android: Tabs at the bottom with FragmentTabHost
but I don't think that that is my problem; I'm not looking to put a TabWidget on the bottom.
Every other one of my XML files opens perfectly.
The same problem occurs in Android Studio:
I had the same rendering problem as well as compilation error. I fixed the problem by finding that I was not passing Fragment when i was creating Addtab. You must pass atleast one fragment on mTabHost.addTab. Below is the working code.
private FragmentTabHost mTabHost;
mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);
mTabHost.setup(HomeActivity.this, getSupportFragmentManager(), android.R.id.tabcontent);
mTabHost.addTab(mTabHost.newTabSpec("home").setIndicator("Home"), HomeFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("mysheets").setIndicator("MySheets"));
mTabHost.addTab(mTabHost.newTabSpec("bookmarks").setIndicator("Bookmarks"));
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