android - Error with inserting data into sqlite database -

i'm trying insert data sqlite database using dialog wrapper. however, unable so. have 2 texts called title , template insert database. crashes. below java code:
@override public boolean oncreateoptionsmenu(menu menu) { menu.add(0,menu_item_insert,0,r.string.menu_insert); return true; }

@override public boolean onoptionsitemselected(menuitem item) {     switch(item.getitemid())     {         case menu_item_insert:             insert();             //startactivity(new intent(intent.action_insert,getintent().getdata()));             return true;     }     return(super.onoptionsitemselected(item)); }  @override  public void oncreatecontextmenu(contextmenu menu,view v,contextmenu.contextmenuinfo menuinfo) {     adapterview.adaptercontextmenuinfo info;     try {          info = (adapterview.adaptercontextmenuinfo) menuinfo;     } catch (classcastexception e) {         log.e(tag, "bad menuinfo", e);         return;     }      mcursor = (cursor) getlistadapter().getitem(info.position);      menu.setheadertitle(mcursor.getstring(column_index_title));      menu.add(0,menu_item_delete,0 ,r.string.menu_delete);     menu.add(1,menu_item_addtmessage,1,r.string.menu_add); }  @override public boolean oncontextitemselected(menuitem item) {     adapterview.adaptercontextmenuinfo info;     try {          info = (adapterview.adaptercontextmenuinfo) item.getmenuinfo();     } catch (classcastexception e) {         log.e(tag, "bad menuinfo", e);         return false;     }      switch(item.getitemid())     {         case menu_item_delete:             //delete selected row             delete(info.id);             return true;         case menu_item_addtmessage:             //add message             return true;     }     return(super.oncontextitemselected(item)); }  private void insert() {     layoutinflater inflater = layoutinflater.from(this);     view addview = inflater.inflate(r.layout.templates_editor,null);     final dialogwrapper wrapper = new dialogwrapper(addview);      new alertdialog.builder(this)     .settitle(r.string.menu_insert)     .setview(addview)     .setpositivebutton(r.string.item_ok,new dialoginterface.onclicklistener() {         public void onclick(dialoginterface dialog, int whichbutton) {             processinsert(wrapper);         }     })     .setnegativebutton(r.string.item_cancel,new dialoginterface.onclicklistener() {         public void onclick(dialoginterface dialog, int whichbutton) {             // ignore, dismiss         }     })     .show(); }  private void delete(final long rowid) {     if(rowid > 0)     {         new alertdialog.builder(this)                         .settitle(r.string.menu_delete)                         .setpositivebutton(r.string.item_ok,                                  new dialoginterface.onclicklistener() {                              public void onclick(dialoginterface dialog, int which) {                                 processdelete(rowid);                             }                         })                         .setnegativebutton(r.string.item_cancel,                                 new dialoginterface.onclicklistener() {                                      public void onclick(dialoginterface dialog, int which) {                                         //dismiss dialog                                     }                                 }).show();     } }  private void processdelete(long rowid) {     string[] args = {string.valueof(rowid)};      db.getwritabledatabase().delete("templates", templates._id, args);     mcursor.requery(); }  private void processinsert(dialogwrapper wrapper) {     contentvalues cv = new contentvalues();      cv.put("title", wrapper.gettitle());     cv.put("template", wrapper.gettemplate());      db.getwritabledatabase().insert("templates", "title", cv);     db.getwritabledatabase().insert("templates", "template", cv);     mcursor.requery(); }  class dialogwrapper{     edittext titlefield = null;     edittext templatefield = null;     view base = null;      dialogwrapper(view base) {         this.base = base;     }      string gettitle(){         return(gettitlefield().gettext().tostring());     }      string gettemplate(){         return(gettemplatefield().gettext().tostring());                 }      private edittext gettitlefield(){         if(titlefield == null){             titlefield = (edittext) findviewbyid(r.id.title);         }         return titlefield;     }      private edittext gettemplatefield(){         if(templatefield == null){             templatefield = (edittext) findviewbyid(r.id.template);         }         return templatefield;     } } 

below logcat:

12-02 08:23:17.712: error/androidruntime(204): uncaught handler: thread main exiting due uncaught exception
12-02 08:23:17.862: error/androidruntime(204): java.lang.nullpointerexception
12-02 08:23:17.862: error/androidruntime(204): @ joel.groupsms.templateslist$dialogwrapper.gettitle(templateslist.java:214)
12-02 08:23:17.862: error/androidruntime(204): @ joel.groupsms.templateslist.processinsert(templateslist.java:196)
12-02 08:23:17.862: error/androidruntime(204): @ joel.groupsms.templateslist.access$0(templateslist.java:192)
12-02 08:23:17.862: error/androidruntime(204): @ joel.groupsms.templateslist$1.onclick(templateslist.java:150)
12-02 08:23:17.862: error/androidruntime(204): @ com.android.internal.app.alertcontroller$buttonhandler.handlemessage(alertcontroller.java:158)
12-02 08:23:17.862: error/androidruntime(204): @ android.os.handler.dispatchmessage(handler.java:99)
12-02 08:23:17.862: error/androidruntime(204): @ android.os.looper.loop(looper.java:123)
12-02 08:23:17.862: error/androidruntime(204): @ android.app.activitythread.main(activitythread.java:4363)
12-02 08:23:17.862: error/androidruntime(204): @ java.lang.reflect.method.invokenative(native method)
12-02 08:23:17.862: error/androidruntime(204): @ java.lang.reflect.method.invoke(method.java:521)
12-02 08:23:17.862: error/androidruntime(204): @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:860)
12-02 08:23:17.862: error/androidruntime(204): @ com.android.internal.os.zygoteinit.main(zygoteinit.java:618)
12-02 08:23:17.862: error/androidruntime(204): @ dalvik.system.nativestart.main(native method)

edit
stacktrace requested pertaining comment:

12-06 16:54:12.466: info/activitymanager(58): starting activity: intent { cmp=joel.groupsms/.templateedit }
12-06 16:54:16.550: debug/androidruntime(254): shutting down vm 12-06 16:54:16.550: warn/dalvikvm(254): threadid=3: thread exiting uncaught exception (group=0x4001b188)
12-06 16:54:16.550: error/androidruntime(254): uncaught handler: thread main exiting due uncaught exception
12-06 16:54:16.736: error/androidruntime(254): java.lang.runtimeexception: unable start activity componentinfo{joel.groupsms/joel.groupsms.templateedit}: java.lang.nullpointerexception
12-06 16:54:16.736: error/androidruntime(254): @ android.app.activitythread.performlaunchactivity(activitythread.java:2496)
12-06 16:54:16.736: error/androidruntime(254): @ android.app.activitythread.handlelaunchactivity(activitythread.java:2512)
12-06 16:54:16.736: error/androidruntime(254): @ android.app.activitythread.access$2200(activitythread.java:119)
12-06 16:54:16.736: error/androidruntime(254): @ android.app.activitythread$h.handlemessage(activitythread.java:1863)
12-06 16:54:16.736: error/androidruntime(254): @ android.os.handler.dispatchmessage(handler.java:99)
12-06 16:54:16.736: error/androidruntime(254): @ android.os.looper.loop(looper.java:123)
12-06 16:54:16.736: error/androidruntime(254): @ android.app.activitythread.main(activitythread.java:4363)
12-06 16:54:16.736: error/androidruntime(254): @ java.lang.reflect.method.invokenative(native method)
12-06 16:54:16.736: error/androidruntime(254): @ java.lang.reflect.method.invoke(method.java:521)
12-06 16:54:16.736: error/androidruntime(254): @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:860)
12-06 16:54:16.736: error/androidruntime(254): @ com.android.internal.os.zygoteinit.main(zygoteinit.java:618)
12-06 16:54:16.736: error/androidruntime(254): @ dalvik.system.nativestart.main(native method)
12-06 16:54:16.736: error/androidruntime(254): caused by: java.lang.nullpointerexception
12-06 16:54:16.736: error/androidruntime(254): @ android.content.contentresolver.acquireprovider(contentresolver.java:754)
12-06 16:54:16.736: error/androidruntime(254): @ android.content.contentresolver.query(contentresolver.java:197)
12-06 16:54:16.736: error/androidruntime(254): @ android.app.activity.managedquery(activity.java:1495)
12-06 16:54:16.736: error/androidruntime(254): @ joel.groupsms.templateedit.oncreate(templateedit.java:77)
12-06 16:54:16.736: error/androidruntime(254): @ android.app.instrumentation.callactivityoncreate(instrumentation.java:1047)
12-06 16:54:16.736: error/androidruntime(254): @ android.app.activitythread.performlaunchactivity(activitythread.java:2459)

it's hard tell without line numbers in code match traceback i'm guessing (edittext) findviewbyid(r.id.title) returning null. check app in hierarchyviewer @ time you're doing insert , make sure view think there in hierarchy there @ time you're processing insert code.