您的结构如下:

TabActivity
 -> Tab1 = FragmentActivity = MainFragment
 -> Tab2          
 -> Tab3          

从MainFragment 开始,你试图更换集装箱(自封)。

It would be best if the MainFragment called a customised TabActivity which in turn called a replace on it s container, either like so (Which may likely fall foul of the same problem as it s basically running the same code from the same place, but it should give you a basic idea of what I m suggesting):

    Fragment newFragment = new FragmentToChangeTo();
    CustomTabActivity tabActivity = (CustomTabActivity) getActivity();
    tabActivity.changeFragment(newFragment);

If this doesn t work try doing a similar thing but instead of calling the activity directly pass commands to it through Intents & Actions (or Bundles) containing information on what to change which container to.

I would have preferred to say /why/ Fragments don t work well with Fragment-in-fragment and related intricacies: check here to see why I suggest cutting fragments out of the control of fragments.

OK, several things:

1. You don t need both replace and remove. Replace effectively just removes the first fragment and adds the second in its place.

2. I suspect that your arguments are incorrect for the replace command. This is the proper form:

   replace (int containerViewId, Fragment fragment)
   

   你们似乎通过碎块本身,而不是集装箱的id。 替换的指挥用的是集装箱观察,在添加新的集装箱之前清除该集装箱的所有碎片。 因此,如果是你的话:

   <LinearLayout
   android:id="@+id/container"
   android:layout_width="match_parent"
   android:layout_height="match_parent">
   
       <fragment class="com.example.stackoverflow.YourFragmentName"
       android:id="@+id/main_fragment"
       android:layout_weight="1"
       android:layout_width="0px"
       android:layout_height="match_parent" />
   
   </LinearLayout>
   

   You would use:

   replace(R.id.container, mFragment);
   

   and not

   replace(R.id.main_fragment, mFragment);
   

3. 由于你试图打上<条码>定型FragmentById(R.id.main_fragment),我怀疑你在XML布局档案中添加了这一碎片。 如果你在《冲锋枪法》中直接添加了一块碎片,那么你就无法在方案上拆除它。 为了消除或替换碎片,你必须经常以零敲碎打的转移来补充碎片。

http://www.un.org。

我原答复中的第2和第3号仍然适用。 你们需要利用 containing子添加和替换。 在本案中,这 s了你的线索,R.id。 Maincontainer, not R.id.main_fragment.

而且,正如我以前说过的那样,你不能排除你在《禁止杀伤人员地雷公约》中直接增加的碎片。 您的<代码>main_fragment <>/code>在《XML》中加入,因此不能在一段时间内删除。

您的主要兄弟们:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/Maincontainer"
android:layout_width="match_parent"
android:layout_height="match_parent">

    <Button
    android:id="@+id/btn"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Switch Fragments">

</LinearLayout>

而对于你的主要兄弟群体来说,这是:

public class main_activity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mainfragment);

        //Notice that I am adding this 1st fragment in the Activity and not the XML
        main_fragment mainFragment = new main_fragment();
        FragmentTransaction ft = getFragmentManager().beginTransaction();
        ft.add(R.id.Maincontainer, mainFragment);
        ft.commit();

        mButton = (Button) findViewById(R.id.btn);
        mButton.setOnClickListener(new OnClickListener()
        {

            @Override
            public void onClick(View v)
            {

                Fragment mFragment = new third_fragment_view();
                FragmentTransaction ft = getFragmentManager().beginTransaction();
                //Replacing using the id of the container and not the fragment itself
                ft.replace(R.id.Maincontainer, mFragment);
                ft.addToBackStack(null);
                ft.commit();
            }
        });
    }
}

@theisenp i 正在形成一种禁忌观点,即当一个纽克被点击时,当试图使用上述代码实施时,它必须转移到另一个屏幕上,但它正在改用另一个屏幕,但纽克仍然有眼光,希望下一次屏幕覆盖整个屏幕。

public class Tab1Fragment extends Fragment  {
LinearLayout mLayout;
/** (non-Javadoc)
 * @see android.support.v4.app.Fragment#onCreateView(android.view.LayoutInflater, android.view.ViewGroup, android.os.Bundle)
 */
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {

    if (container == null) {


        return null;
    }

    LinearLayout theLayout = (LinearLayout)inflater.inflate(R.layout.tab_frag1_layout, container, false);

            // Register for the Button.OnClick event

            Button b = (Button)theLayout.findViewById(R.id.button1);

            b.setOnClickListener(new View.OnClickListener() {



                @Override

                public void onClick(View v) {

                     Fragment mFragment = new third_fragment_view();
                     android.support.v4.app.FragmentTransaction ft = getFragmentManager().beginTransaction();

                     ft.replace(R.id.container, mFragment);
                     ft.addToBackStack(null);
                     ft.commit();   


                }

            });

    return theLayout;

}
}