Các mảnh vỡ và các vấn đề xoay màn hình

Question

tôi gặp sự cố với các đoạn và màn hình xoay. Tôi đọc bài này, và nó đã không giải quyết vấn đề của tôi:

Fragment without a view crashes on configuration change (không phải là giống hệt nhau)

IllegalStateException when replacing a Fragment (không giải quyết vấn đề của tôi)

Tôi chỉ có một hoạt động:

public class MainActivity extends FragmentActivity implements TabSelectedListener { 

    /** Application tab menu */ 
    private TopMenu menu; 


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

     menu = (TopMenu) this.findViewById(R.id.menu); 
     menu.setListener(this); 


    }//onCreate 

    @Override 
    protected void onSaveInstanceState(Bundle outState) { 
     // TODO Auto-generated method stub 
     super.onSaveInstanceState(outState); 
    } 

    public void tabSelected(int tab) { 

     FragmentManager fragmentManager = this.getSupportFragmentManager(); 
     FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); 
     Fragment f = null; 

     boolean logged = DataController.getInstance().getLogged(); 

     switch(tab){ 
     case TopMenu.TAB1: 
      if(!logged){ 
       f = new HomeFragment(); 
      }else{ 
       f = new AccountsFragment(); 
      } 
      break; 
     case TopMenu.TAB2: 
        // i create more fragments depending the tab 
     } 

     if(f != null){ 

      // Replace whatever is in the fragment view with this fragment, 
      // and add the transaction to the back stack 
      fragmentTransaction.replace(R.id.fragment, f); 
      fragmentTransaction.addToBackStack(null); 

      // Commit the transaction 
      fragmentTransaction.commit(); 
     } 

    }//tabSelected 

    public void setSelectedTab(int tab){ 
     menu.setSelectedTab(tab); 
    } 


..... 
} 

Và mã của đoạn là:

public class HomeFragment extends Fragment implements OnClickListener{ 

    private static final String KEY_STATE_BUNDLE = "HomeFragmentManagerState"; 

    private LocalActivityManager mLocalActivityManager; 

    View homeRelative; 
    View homeLocked; 
    View homeUnlocked; 

    EditText id; 
    Button ok; 
    ImageView lock; 
    CheckBox remember; 

    private boolean lock_state; 



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

      Bundle state = null; 
      if (savedInstanceState != null) { 
       state = savedInstanceState.getBundle(KEY_STATE_BUNDLE); 
       lock_state=savedInstanceState.getBoolean("lock_state"); 
      } else { 
       lock_state=true; 
      } 

      mLocalActivityManager = new LocalActivityManager(getActivity(), true); 
      mLocalActivityManager.dispatchCreate(state); 
     } 


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

     // Inflate the layout for this fragment 
     View view = inflater.inflate(R.layout.fragment_home, container, false); 

     homeRelative = view.findViewById(R.id.home_relative); 
     homeLocked = view.findViewById(R.id.ly_home_buttonlogin); 
     homeLocked.setOnClickListener(this); 

     homeUnlocked = view.findViewById(R.id.ly_home_buttonlogin_unlocked); 
     id = (EditText) view.findViewById(R.id.userid); 

     ok = (Button) view.findViewById(R.id.useridok); 
     ok.setEnabled(false); // ?? if id.equalsIgnoreCase("") 
     ok.setOnClickListener(this); 
     lock = (ImageView) view.findViewById(R.id.iv_home_candado); 
     lock.setOnClickListener(this); 

     if (!lock_state) 
      animateLogon(true); 

     remember = (CheckBox) view.findViewById(R.id.remember); 

     id.addTextChangedListener(new TextWatcher(){ 
      public void afterTextChanged(Editable s) { 

       ok.setEnabled(!id.getText().toString().equalsIgnoreCase("")); 

       id.setBackgroundResource(R.drawable.bordercolorblack_rightsquare); 
      } 
      public void beforeTextChanged(CharSequence s, int start, int count, int after){} 
      public void onTextChanged(CharSequence s, int start, int before, int count){} 
     }); 

     return view; 

    } 

....

Và chỉ khi tôi thay đổi các tab, và sau khi tôi xoay điện thoại của tôi, tôi nhận được một FC và logcat là thế này:

10-01 14:04:07.561: E/AndroidRuntime(11759): FATAL EXCEPTION: main 
10-01 14:04:07.561: E/AndroidRuntime(11759): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.stkaction.sov/com.stkaction.sov.MainActivity}: android.view.InflateException: Binary XML file line #12: Error inflating class fragment 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1967) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3362) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.app.ActivityThread.access$700(ActivityThread.java:127) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1162) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.os.Handler.dispatchMessage(Handler.java:99) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.os.Looper.loop(Looper.java:137) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.app.ActivityThread.main(ActivityThread.java:4511) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at java.lang.reflect.Method.invokeNative(Native Method) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at java.lang.reflect.Method.invoke(Method.java:511) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:986) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:753) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at dalvik.system.NativeStart.main(Native Method) 
10-01 14:04:07.561: E/AndroidRuntime(11759): Caused by: android.view.InflateException: Binary XML file line #12: Error inflating class fragment 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.view.LayoutInflater.rInflate(LayoutInflater.java:739) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.view.LayoutInflater.inflate(LayoutInflater.java:489) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.view.LayoutInflater.inflate(LayoutInflater.java:352) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:272) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.app.Activity.setContentView(Activity.java:1835) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at com.stkaction.sov.MainActivity.onCreate(MainActivity.java:29) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.app.Activity.performCreate(Activity.java:4470) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1052) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1931) 
10-01 14:04:07.561: E/AndroidRuntime(11759): ... 12 more 
10-01 14:04:07.561: E/AndroidRuntime(11759): Caused by: java.lang.IllegalStateException: Fragment com.com.stkaction.sov.HomeFragment did not create a view. 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:293) 
10-01 14:04:07.561: E/AndroidRuntime(11759): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:669) 
10-01 14:04:07.561: E/AndroidRuntime(11759): ... 22 more 

Nhờ tất cả.

Answer 1

Tôi đã tìm ra giải pháp. Khi bạn sử dụng các đoạn động, bạn phải sử dụng bố cục và đặt đoạn trong đó.

Ví dụ: Việc sử dụng hoạt động chính bố trí này:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" 
    android:id="@+id/activity_main_layout"> 

    <com.myproyect.TopMenu 
     android:id="@+id/menu" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
    /> 

    <!-- this was the problem 
    <fragment 
     android:id="@+id/fragment" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     class="com.myproyect.HomeFragment" 
     android:layout_below="@id/menu" 
    /> --> 

    <FrameLayout android:id="@+id/fragment" 
      android:layout_width="match_parent" android:layout_height="match_parent" 
      android:layout_below="@id/menu"/> 

    <LinearLayout 
     android:id="@+id/menu_layout" 
     android:layout_width="175dp" 
     android:layout_height="wrap_content" 
     android:background="@drawable/menu_filtros" 
     android:layout_marginRight="5dp" 
     android:layout_below="@id/menu" 
     android:layout_marginTop="-47dp" 
     android:layout_alignParentRight="true" 
     android:visibility="gone" 
     android:orientation="vertical"> 
    </LinearLayout> 
</RelativeLayout> 

Và tôi nhanh chóng các đoạn bên trong FrameLayout.

fragmentTransaction.replace(R.id.fragment, f); 
fragmentTransaction.addToBackStack(null); 
fragmentTransaction.commit();