單擊景觀（雙窗格）時的列表視圖

在橫向模式下，我的列表視圖出現在屏幕的左側，而右側是空白的，因爲它應該是。當用戶點擊一個項目時，細節顯示在屏幕的右側，但listivew消失。它看起來像是在肖像模式，但它顯然使用景觀xml佈局土地。在看了幾十個例子之後，我仍然無法獲得列表視圖與細節留在屏幕上。有人能指引我朝着正確的方向嗎？這裏是我的代碼：單擊景觀（雙窗格）時的列表視圖

BookDetailsActivity：公共類BookDetailsActivity延伸活動{

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    //** Getting the orientation (Landscape or Portrait) of the screen 
    int orientation = getResources().getConfiguration().orientation; 

    //** Landscape Mode 
    if(orientation == Configuration.ORIENTATION_LANDSCAPE){ 
     //setting the landscape layout for this activity 
     setContentView(R.layout.buy_tbfrag); 

     //get fragment manager for fragment related operations 
     FragmentManager fm = getFragmentManager(); 

     //get fragment transaction object, which can add, move or replace a fragment 
     FragmentTransaction ft = fm.beginTransaction(); 

     //getting the existing detailed fragment object, if it already exists. 
     //the fragment object is retrieved by its tag name 
     Fragment prevFrag = fm.findFragmentByTag("book.details"); 

     //System.out.println("prevFrag = " + prevFrag); 
     //** Remove the existing detailed fragment object if it exists */ 
     if(prevFrag!=null) { 
      ft.remove(prevFrag); 
     } 

     //instantiating the fragment BookDetailsFragment 
     BookDetailsFragment detailsFragment = new BookDetailsFragment(); 

     //creating a bundle object to pass the data (clicked item's position) 
     //from this activity to fragment 
     Bundle b = new Bundle(); 

     //setting the data to the bundle object from the Intent 
     b.putString("load the bundle objects); 
     ... 

     //setting the bundle object to the fragment 
     detailsFragment.setArguments(b); 

     //adding the fragment to the fragment transaction 
     ft.add(R.id.details_fragment_container, detailsFragment,"book.details"); 

     //add the fragment transaction to backstack 
     //ft.addToBackStack(null); 

     //Executing the transaction 
     ft.commit(); 

    } else { 
    ... 
    start Portrait mode code... 
    } 
}

Buy_tbfrg XML代碼：

<LinearLayout 
    android:layout_width="200dip" 
    android:layout_height="match_parent" 
    android:orientation="vertical" 
    android:padding="3dip" > 

    <EditText 
     android:id="@+id/titleSearch" 
     android:layout_width="200dip" 
     android:layout_height="wrap_content" 
     android:layout_marginTop="5dip" 
     android:background="@drawable/rectangle_box" 
     android:hint="@string/hint" 
     android:padding="5dip" 
     android:textStyle="italic" /> 

    <ListView 
     android:id="@android:id/list" 
     android:layout_width="200dip" 
     android:layout_height="wrap_content" > 
    </ListView> 
</LinearLayout> 

<FrameLayout 
    android:id="@+id/details_fragment_container" 
    android:layout_width="0dip" 
    android:layout_height="match_parent" 
    android:layout_weight="3.97" > 

</FrameLayout> 

</LinearLayout>

BookDetailsFragment：公共類BookDetailsFragment擴展片段{

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
     Bundle savedInstanceState) { 

     View view = inflater.inflate(R.layout.book_details, null); 

     System.out.println("BookDetailsFragment executed"); 

     //Defines the TextViews in R.layout.book_details 
     TextView bkTitle = (TextView)view.findViewById(R.id.bookTitle); 
     ... 

     //Retrieve the bundle object passed from BuyFragTab 
     Bundle b = getArguments(); 


     //Getting the item's clicked position and setting corresponding details  
     //First check the bundle to ensure the data has been passed 
     if (b != null) { 
     bkTitle.setText ("Title: " + b.getString("Selected_Title")); 
     ... 
     } 

    return view; 
}

來源

2013-08-05 Skip

你使用裝載機嗎？在ListFragment或DetailFragment中啓動或重新啓動加載程序時，請確保您傳遞不同的數字（arg0）。

來源

2013-10-04 22:28:25 bluef18

單擊景觀（雙窗格）時的列表視圖

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