Databases
StackOverflow2013
Postsdbo
POforced to close on screen orientation changes
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POforced to close on screen orientation changes
    primarykey
    data
    text
    <p>My app is forced to close after I press "Ctrl-F11" to rotate screen. Here's the error log: </p> <pre><code> 01-02 13:47:30.663: E/AndroidRuntime(498): FATAL EXCEPTION: main 01-02 13:47:30.663: E/AndroidRuntime(498): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ecnu.sei.manuzhang.study/com.ecnu.sei.manuzhang.study.Main}: java.lang.ClassCastException: android.widget.ExpandableListView$SavedState 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:2832) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.ActivityThread.access$1600(ActivityThread.java:117) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.os.Handler.dispatchMessage(Handler.java:99) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.os.Looper.loop(Looper.java:130) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.ActivityThread.main(ActivityThread.java:3683) 01-02 13:47:30.663: E/AndroidRuntime(498): at java.lang.reflect.Method.invokeNative(Native Method) 01-02 13:47:30.663: E/AndroidRuntime(498): at java.lang.reflect.Method.invoke(Method.java:507) 01-02 13:47:30.663: E/AndroidRuntime(498): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 01-02 13:47:30.663: E/AndroidRuntime(498): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 01-02 13:47:30.663: E/AndroidRuntime(498): at dalvik.system.NativeStart.main(Native Method) 01-02 13:47:30.663: E/AndroidRuntime(498): Caused by: java.lang.ClassCastException: android.widget.ExpandableListView$SavedState 01-02 13:47:30.663: E/AndroidRuntime(498): at android.widget.ListView.onRestoreInstanceState(ListView.java:3763) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.View.dispatchRestoreInstanceState(View.java:6278) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.ViewGroup.dispatchThawSelfOnly(ViewGroup.java:1228) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.widget.AdapterView.dispatchRestoreInstanceState(AdapterView.java:767) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.view.View.restoreHierarchyState(View.java:6257) 01-02 13:47:30.663: E/AndroidRuntime(498): at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1486) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.Activity.onRestoreInstanceState(Activity.java:844) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.TabActivity.onRestoreInstanceState(TabActivity.java:58) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.Activity.performRestoreInstanceState(Activity.java:816) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1096) 01-02 13:47:30.663: E/AndroidRuntime(498): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1625) 01-02 13:47:30.663: E/AndroidRuntime(498): ... 12 more </code></pre> <p>As it shows, it has something to do with an ExpandableListView. Thus, I attach the suspected activity and its layout here: </p> <pre><code>public class StudyHalls extends ExpanableListActivity { @Override public void onCreate(Bundle savedInstanceState) { Log.d(TAG, "on create"); super.onCreate(savedInstanceState); setContentView(R.layout.halls); ... } ... } </code></pre> <p>halls.xml</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" &gt; &lt;ExpandableListView android:id="@id/android:list" android:layout_width="fill_parent" android:layout_height="fill_parent" /&gt; &lt;/LinearLayout&gt; </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USmanuzhang
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload