Android FragmentTabHost [英] Android FragmentTabHost
本文介绍了Android FragmentTabHost的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我已经实现了FragmentTabHost，但是我的Fragments不在tabhost之外. 这是我的活动:
public class MainActivity extends ActionBarActivity {
private FragmentTabHost mTabHost;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(),android.R.id.tabhost);
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"),
PlaceholderFragment.class,null);
mTabHost.addTab(mTabHost.newTabSpec("contacts")
.setIndicator("Contacts"), PlaceholderFragment2.class, null);
}
}
这是我的片段:
public class PlaceholderFragment2 extends Fragment {
public PlaceholderFragment2() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main2, container, false);
return rootView;
}
}
activity_main.xml
<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" >
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:context=".MainActivity"
/>
</android.support.v4.app.FragmentTabHost>
和fragment_main.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView android:text="@string/hello_world" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageView"
android:src="@drawable/ic_launcher"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:layout_marginTop="159dp" />
</FrameLayout>
问题是该片段超出了它的选项卡. 这是照片
解决方案
将您的activity_main.xml更改为
<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:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"/>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
</android.support.v4.app.FragmentTabHost>
，您的活动在onCreate上
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(), android.R.id.tabcontent);
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"),
PlaceholderFragment.class,null);
mTabHost.addTab(mTabHost.newTabSpec("contacts")
.setIndicator("Contacts"), PlaceholderFragment2.class, null);
}
尽管我强烈建议不完全使用制表符.相反，我会按照此解决方案的方法 .
I've already implemented FragmentTabHost, but my Fragments are going outside the tabhost. Here is my Activity:
public class MainActivity extends ActionBarActivity {
private FragmentTabHost mTabHost;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(),android.R.id.tabhost);
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"),
PlaceholderFragment.class,null);
mTabHost.addTab(mTabHost.newTabSpec("contacts")
.setIndicator("Contacts"), PlaceholderFragment2.class, null);
}
}
And here is my fragment:
public class PlaceholderFragment2 extends Fragment {
public PlaceholderFragment2() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main2, container, false);
return rootView;
}
}
activity_main.xml
<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" >
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:context=".MainActivity"
/>
</android.support.v4.app.FragmentTabHost>
And fragment_main.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView android:text="@string/hello_world" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageView"
android:src="@drawable/ic_launcher"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:layout_marginTop="159dp" />
</FrameLayout>
The problem is that the fragment goes outside it's tab. Here's the photo
解决方案
Change your activity_main.xml to
<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:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"/>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
</android.support.v4.app.FragmentTabHost>
and your activity's onCreate to
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(), android.R.id.tabcontent);
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"),
PlaceholderFragment.class,null);
mTabHost.addTab(mTabHost.newTabSpec("contacts")
.setIndicator("Contacts"), PlaceholderFragment2.class, null);
}
Although I strongly suggestion not using a tabhost at all. I would instead go for something in the lines of this solution.
这篇关于Android FragmentTabHost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！
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