我在哪里出错fragmenttransaction.replace（）（ActionbarSherlock）

Question

我有两个类，我正在使用，我的主要SherlockFragmentActivity和SherlockListFragment。我试图简单地从一个移动到另一个使用操作栏导航栏。

问题是当我点击每个标签时，什么也没有发生。它只是选择剩下的具有相同视图的其他选项。我知道这是怎么回事在ontabselected因为我Log.i（）

这里是我的两个类： 主要活动：

public class MainActivity extends SherlockFragmentActivity implements ActionBar.TabListener { 

    private ActionBar actionbar; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     this.actionbar = getSupportActionBar(); 
     this.actionbar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); 

     this.actionbar.addTab(this.actionbar.newTab().setText("Balance").setTabListener(this)); 
     this.actionbar.addTab(this.actionbar.newTab().setText("Transactions").setTabListener(this)); 

    } 


    protected void onResume() 
    { 
     super.onResume(); 
    } 

    protected void onPause() 
    { 
     super.onPause(); 
    } 

    @Override 
    public void onTabSelected(Tab tab, FragmentTransaction ft) { 
     if(tab.getText().equals("Balance")){} 
     else if(tab.getText().equals("Transactions")) 
     { 
      SherlockListFragment f = new TransactionList(); 
      ft.replace(android.R.id.content, f, "TransactionList"); 
     } 
    } 

    @Override 
    public void onTabUnselected(Tab tab, FragmentTransaction f) { 
    } 

    @Override 
    public void onTabReselected(Tab tab, FragmentTransaction ft) { 
     // TODO Auto-generated method stub 

    } 

} 

列表活动：

public class TransactionList extends SherlockListFragment{ 

     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
      return inflater.inflate(R.layout.activity_transaction_list, container, false); 
     } 

     public void onActivityCreated(Bundle savedInstanceState){ 
      super.onActivityCreated(savedInstanceState); 
      DataSource ds = new DataSource(getSherlockActivity()); 
      ds.open(); 
      List<Transaction> transactions = ds.findAll(); 
      ds.close(); 
      ArrayAdapter<Transaction> adapter = new ArrayAdapter<Transaction>(getSherlockActivity(), android.R.layout.simple_list_item_1, transactions.toArray(new Transaction[transactions.size()])); 
      setListAdapter(adapter); 
     } 

} 

列表布局：

 <ListView 
      android1:id="@android:id/list" 
      android1:layout_width="match_parent" 
      android1:layout_height="wrap_content"> 
     </ListView> 
</LinearLayout> 

清单：

<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.dawkinstan.simplebalance" 
    android:versionCode="4" 
    android:versionName="1.0" > 

    <uses-sdk 
     android:minSdkVersion="7" 
     android:targetSdkVersion="18" /> 

    <uses-permission android:name="com.android.vending.CHECK_LICENSE" /> 

    <application 
     android:icon="@drawable/wallet_icon" 
     android:label="@string/app_name" 
     android:theme="@style/Theme.Sherlock.Light" 
     android:logo="@drawable/wallet_icon"> 
     <activity 
      android:name=".MainActivity" 
      android:label="@string/title_activity_main" > 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 
       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".MTSettings" 
      android:label="@string/title_activity_mtsettings" > 
      <intent-filter> 
       <action android:name="com.dawkinstan.MTSettings" /> 
       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".TransactionList" 
      android:label="@string/title_activity_transaction" > 
      <intent-filter> 
       <action android:name="com.dawkinstan.TransactionList" /> 
       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
    </application> 

</manifest> 

Answer 1

你不想：

@Override 
public void onTabSelected(Tab tab, FragmentTransaction ft) { 
    if(tab.getText().equals("Balance")) 
    { 
     SherlockListFragment b = new BalanceFragment(); 
     ft.replace(android.R.id.content, b, "BalanceFragment"); 
    } 
    else if(tab.getText().equals("Transactions")) 
    { 
     SherlockListFragment f = new TransactionList(); 
     ft.replace(android.R.id.content, f, "TransactionList"); 
    } 
}