Question

当我点击包含地图的片段的按钮时，地图会显示。当我再次单击它或单击另一个片段按钮，然后再次单击包含该地图的片段的按钮时，我的应用程序强制退出并在LogCat中得到此解释：

致命异常：主要是：android.view.InflateException：BINARY XML文件行＃8：错误扩充类片段
...
导致by：java.lang.IllegalArgumentException：二进制XML文件行：＃8：复制id 0x7f070053，标记为null或父ID为0xffffffff，另一个片段为com.google.android.gms.maps.MapFragment

怎么办？我猜这可能与片段事务管理器有关，但我真的不知道？

Fragment01.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >


<fragment
      android:id="@+id/map"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:name="com.google.android.gms.maps.MapFragment"/>


</LinearLayout>

Fragment01.java

public class Fragment01 extends Fragment {
MapView mapView;
GoogleMap map;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_01, container, false);
return v;
}

@Override
public void onDestroy()
{
    Fragment fragment = (getFragmentManager().findFragmentById(R.id.map));  
   FragmentTransaction ft = getActivity().getSupportFragmentManager().beginTransaction();
   ft.remove(fragment);
   ft.commit();
}

@Override
public void super.onDestroyView()
{
    Fragment fragment = (getFragmentManager().findFragmentById(R.id.map));  
   FragmentTransaction ft =     getActivity().getSupportFragmentManager().beginTransaction();
   ft.remove(fragment);
   ft.commit();
}

@Override
public void onDestroyView()
{
    Fragment fragment = (getFragmentManager().findFragmentById(R.id.map));  
   FragmentTransaction ft = getActivity().getSupportFragmentManager().beginTransaction();
   ft.remove(fragment);
   ft.commit();
}
}

MainActivity.java

public class MainActivity extends FragmentActivity {

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

    FragmentManager fm = getSupportFragmentManager();
    FragmentTransaction transaction = fm.beginTransaction();
    StartFragment startfragment = new StartFragment();

    transaction.add(R.id.fragment_placeholder, startfragment);
    transaction.commit();
}

public void onSelectFragment(View view){

    Fragment newFragment;

    if (view == findViewById(R.id.btnomforetaget)) {
        newFragment = new StartFragment();
    } else if (view == findViewById(R.id.btnhittahit)) {
        newFragment = new Fragment01();
    } else if (view == findViewById(R.id.btnhemsida)) {
        newFragment = new Fragment02();
    } else {
        newFragment = new StartFragment();
    }


    FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
    transaction.replace(R.id.fragment_placeholder, newFragment);
    transaction.addToBackStack(null);
    transaction.commit();
}
}

Answer 1

问题在于您在更改片段后不会一次又一次地使用相同的地图（Duplicate id 0x7f070053）。

<强>溶液

       public class Fragment01 extends Fragment {
MapView mapView;
GoogleMap map;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_01, container, false);
return v;
}

@Override
public void onDestroyView()
{
   super.onDestroyView();
    Fragment fragment = (getFragmentManager().findFragmentById(R.id.map));  
   FragmentTransaction ft =     getActivity().getSupportFragmentManager().beginTransaction();
   ft.remove(fragment);
   ft.commit();
}

}

当你替换片段

时会破坏地图

Answer 2

使用以下代码。这对我有用

private static View view;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
if (view != null) {
    ViewGroup parent = (ViewGroup) view.getParent();
    if (parent != null)
        parent.removeView(view);
}
try {
    view = inflater.inflate(R.layout.map, container, false);
} catch (InflateException e) {
    /* map is already there, just return view as it is */
}
return view;
}

单击我的地图片段两次时出现IllegalArgument

2 个答案: