Databases
StackOverflow2013
Postsdbo
PODelete Event From android returns Null Pointer Exception
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PODelete Event From android returns Null Pointer Exception
    primarykey
    data
    text
    <p>When I try to delete a specific event from my calendar it returns NULL Pointer Exception </p> <p>But when I delete all the events it works fine </p> <p>I got the path from insertion query and tried almost everything </p> <p>This is my code </p> <p>My Delete Event Class</p> <pre><code>public class DeleteEvent extends Activity { public DeleteEvent() { // TODO Auto-generated constructor stub } public int DeleteCalendarEntry(int entryID) { int iNumRowsDeleted = 0; Uri eventsUri = Uri.parse( "content://com.android.calendar/events"); Uri eventUri = ContentUris.withAppendedId(eventsUri, entryID); iNumRowsDeleted = getContentResolver().delete(eventUri, null, null); return iNumRowsDeleted; } } </code></pre> <p>/////////////////////////////////////////////////////</p> <pre><code>image.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { chose_add_view_delete(); } }); </code></pre> <p>When click cell execute this :- </p> <pre><code>public void chose_add_view_delete() { final CharSequence[] items = { "Add Event", "View Event","Delete Event" }; AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); builder.setTitle("What !?"); builder.setSingleChoiceItems(items, 0,new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub if (which == 0) { DeleteEvent del = new DeleteEvent(); int i = del.DeleteCalendarEntry(82); dialog.dismiss(); } </code></pre> <p>/////////////////////////////////////////////////</p> <pre><code>09-10 12:28:01.385: E/AndroidRuntime(22297): FATAL EXCEPTION: main 09-10 12:28:01.385: E/AndroidRuntime(22297): java.lang.NullPointerException 09-10 12:28:01.385: E/AndroidRuntime(22297): at android.content.ContextWrapper.getContentResolver(ContextWrapper.java:90) 09-10 12:28:01.385: E/AndroidRuntime(22297): at com.iphase.Albayan.DeleteEvent.DeleteCalendarEntry(DeleteEvent.java:25) 09-10 12:28:01.385: E/AndroidRuntime(22297): at com.iphase.Albayan.MainActivity$9.onClick(MainActivity.java:475) 09-10 12:28:01.385: E/AndroidRuntime(22297): at com.android.internal.app.AlertController$AlertParams$3.onItemClick(AlertController.java:935) 09-10 12:28:01.385: E/AndroidRuntime(22297): at android.widget.AdapterView.performItemClick(AdapterView.java:284) 09-10 12:28:01.385: E/AndroidRuntime(22297): at android.widget.ListView.performItemClick(ListView.java:3746) 09-10 12:28:01.385: E/AndroidRuntime(22297): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1980) 09-10 12:28:01.385: E/AndroidRuntime(22297): at android.os.Handler.handleCallback(Handler.java:587) 09-10 12:28:01.385: E/AndroidRuntime(22297): at android.os.Handler.dispatchMessage(Handler.java:92) 09-10 12:28:01.385: E/AndroidRuntime(22297): at android.os.Looper.loop(Looper.java:130) 09-10 12:28:01.385: E/AndroidRuntime(22297): at android.app.ActivityThread.main(ActivityThread.java:3691) 09-10 12:28:01.385: E/AndroidRuntime(22297): at java.lang.reflect.Method.invokeNative(Native Method) 09-10 12:28:01.385: E/AndroidRuntime(22297): at java.lang.reflect.Method.invoke(Method.java:507) 09-10 12:28:01.385: E/AndroidRuntime(22297): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907) 09-10 12:28:01.385: E/AndroidRuntime(22297): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665) 09-10 12:28:01.385: E/AndroidRuntime(22297): at dalvik.system.NativeStart.main(Native Method) </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USOmarj
    1. USOmarj
    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
    1. This table or related slice is empty.
    1. CO**What's the stack trace?**
      singulars
      1. PODelete Event From android returns Null Pointer Exception
      1. USSLaks
    2. COit just give me a null pointer exception and crash when delete statement execute
      singulars
      1. PODelete Event From android returns Null Pointer Exception
      1. USOmarj
    3. COIf you give the stack trace, it will give you the **exact** reason and place where the problem is.
      singulars
      1. PODelete Event From android returns Null Pointer Exception
      1. UStolgap
 

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