利用actionbar同样也可以轻松的实现tab导航的效果，配合使用fragment实现切换不同view的功能。
若想使用这个功能，1）设置 actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS)，使actionbar使用 tab导航功能。2）调用actionbar的addTab()方法，添加多个tab标签，并为每个tab标签添加时间监听器。
MyFragment.java
package com.app.main;
import android.annotation.SuppressLint;
import android.app.Fragment;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.TextView;
@SuppressLint("NewApi")
public class MyFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Context context = this.getActivity();
TextView tv = new TextView(context);
Bundle arc = this.getArguments();
int tabs=arc.getInt("key");
tv.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
tv.setText("hello actionbar "+tabs);
return tv;
}
}
main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Main" >
<LinearLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" />
</RelativeLayout>
Main.java
package com.app.main;
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.Activity;
import android.app.FragmentTransaction;
import android.os.Bundle;
public class Main extends Activity implements ActionBar.TabListener {
ActionBar actionBar = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
actionBar = this.getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
actionBar.addTab(actionBar.newTab().setText("tab1")
.setTabListener(this));
actionBar.addTab(actionBar.newTab().setText("tab2")
.setTabListener(this));
actionBar.addTab(actionBar.newTab().setText("tab3")
.setTabListener(this));
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
MyFragment frag = new MyFragment();
int index = tab.getPosition() + 1;
Bundle bundle = new Bundle();
bundle.putInt("key", index);
frag.setArguments(bundle);
FragmentTransaction action = Main.this.getFragmentManager()
.beginTransaction();
action.replace(R.id.container, frag);
action.commit();
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
}
实现效果：
