操作栏标签底部？

Question

I'm trying to place the action bar tabs at the bottom of my app, but I need some help with it (if it's even possible).

The code:

actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

        ActionBar.Tab tabA = actionBar.newTab().setText("Games");
        ActionBar.Tab tabB = actionBar.newTab().setText("Apps");
        ActionBar.Tab tabC = actionBar.newTab().setText("Themes");

        tabA.setTabListener(new ActionBarTabListener());
        tabB.setTabListener(new ActionBarTabListener());
        tabC.setTabListener(new ActionBarTabListener());

        actionBar.addTab(tabA);
        actionBar.addTab(tabB);
        actionBar.addTab(tabC);

Answer 1

它有点违反Android指南，将标签放在底部，但是分割操作栏应该能够完成你想要做的事情。

Answer 2

There is another way to this but you have to use FrgamentTabHost.

Here is the code. layout/activity_main.xml

enter <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" >      

    <FrameLayout
        android:id="@android:id/tabcontent"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />
      <TabWidget
        android:id="@android:id/tabs"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"/>
</LinearLayout>

You have to place TabWidget below the FrameLayout.

layout/fragment_layout.xml

enter code here<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:background="#eaecee">

<TextView
    android:id="@+id/text"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center_vertical|center_horizontal"
    android:text="@string/hello_world"
    android:textAppearance="?android:attr/textAppearanceMedium" />

MainActivity.java

 import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentTabHost; public class MainActivity extends FragmentActivity { 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.tabcontent); mTabHost.addTab( mTabHost.newTabSpec("tab1").setIndicator("Tab 1", null), FragmentTab.class, null); mTabHost.addTab( mTabHost.newTabSpec("tab2").setIndicator("Tab 2", null), FragmentTab.class, null); mTabHost.addTab( mTabHost.newTabSpec("tab3").setIndicator("Tab 3", null), FragmentTab.class, null); } } 

FragmentTab.java

 import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; public class FragmentTab extends Fragment { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View v = inflater.inflate(R.layout.fragment_layout, container, false); TextView tv = (TextView) v.findViewById(R.id.text); tv.setText(this.getTag() + " Content"); return v; } } 

I hope it would help you.