ActionBar和動態建立Fragment的tab例子

效果圖示例：

 

 

 

 

 

 

 

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一、在res/values下建立arrays.xml佈局

 

代碼

 

 

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string-array name="array_tabs">
        <item>記錄</item>
        <item>聯繫人</item>
        <item>收藏夾</item>
        <item>羣組</item>
    </string-array>
</resources>

 

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二、res/layout下2個佈局activity_main.xml和textview.xml

 

activity_main.xml佈局

 

代碼

 

<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="${relativePackage}.${activityClass}"
    android:id="@+id/layout_container">

</RelativeLayout>

 

 

 

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textview.xml 佈局

 

代碼

 

 

<LinearLayout 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"
    android:orientation="vertical"
    android:gravity="center" >

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

 

 

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三、源文件2個MainActivity.java和PagerFragment.java類

 

PagerFragment.java類

 

 

代碼

 

 

public class PagerFragment extends Fragment {

 private int tabIndex;
 @Override
 public void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  tabIndex = getArguments().getInt("tabIndex");
 }
 @Override
 public View onCreateView(LayoutInflater inflater,
   @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
  View view = inflater.inflate(R.layout.textview,container,false);
  TextView text = (TextView) view.findViewById(R.id.textView);
  switch(tabIndex){
  case 0:
   text.setText("這是記錄頁面");
   break;
  case 1:
   text.setText("這是聯繫人頁面");
   break;
  case 2:
   text.setText("這是收藏夾頁面");
   break;
  case 3:
   text.setText("這是羣組頁面");
   break;
  }
  return view;
 }
}

 

 

 

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MainActivity類

 

 

代碼

 

 

 

 

 

public class MainActivity extends FragmentActivity {

 private String[] tabs; private ActionBar actionBar;  //private List<Fragment> list; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);    tabs = getResources().getStringArray(R.array.array_tabs);  actionBar = getActionBar();  actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);//AtionBar模式    for(int i = 0;i<tabs.length;i++){   Tab tab = actionBar.newTab();   tab.setText(tabs[i]);   tab.setTabListener(new MyTabListener());//實現ActionBar中tab的監聽      actionBar.addTab(tab);  } }  //重寫tab點擊事件監聽接口 class MyTabListener implements TabListener{  @Override  public void onTabSelected(Tab tab, FragmentTransaction ft) {   //動態建立Fragment   PagerFragment fragment = new PagerFragment();   Bundle bundle = new Bundle();   bundle.putInt("tabIndex", tab.getPosition());   fragment.setArguments(bundle);      //使用事物來傳遞數據   FragmentManager fragmentManager = getSupportFragmentManager();   android.support.v4.app.FragmentTransaction transaction = fragmentManager.beginTransaction();   transaction.replace(R.id.layout_container, fragment);      transaction.commit();//提交事物  }    @Override  public void onTabUnselected(Tab tab, FragmentTransaction ft) {  }  @Override  public void onTabReselected(Tab tab, FragmentTransaction ft) {  } }  //------------------橫屏和豎屏切換時重寫的方法--------------------- //若是不重寫切換屏時 ActionBar中的tab項從第一項開始 @Override protected void onSaveInstanceState(Bundle outState) {  // TODO Auto-generated method stub  super.onSaveInstanceState(outState);  //保存換屏前選中ActionBar中的tab項  outState.putInt("tabIndex", actionBar.getSelectedNavigationIndex()); } @Override protected void onRestoreInstanceState(Bundle savedInstanceState) {  // TODO Auto-generated method stub  super.onRestoreInstanceState(savedInstanceState);  //從新加載換屏前保存的選中ActionBar中的tab項  actionBar.setSelectedNavigationItem(savedInstanceState.getInt("tabIndex")); }}