您好我正在尝试执行此查询，但每次我在模拟器中运行时，它都会显示强制关闭消息。有人告诉我查询中有什么错误吗？

public String searchRecord(String f) {

Cursor cur= db.query(DATABASE_TABLE,new String[] { UserName, Age, Sex,DOB} , UserName +" like 'sa%'" , null ,null ,null ,null , "5");

cur.moveToFirst();

return cur.getString(cur.getColumnIndex(UserName));

}

这是logcat。

06-30 15:02:47.342: WARN/dalvikvm(300): threadid=1: thread exiting with uncaught exception (group=0x4001d800)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): FATAL EXCEPTION: main

06-30 15:02:47.632: ERROR/AndroidRuntime(300): java.lang.ClassCastException: android.text.SpannableStringBuilder

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at com.menu.san.OptionsmenuActivity$2.onTextChanged(OptionsmenuActivity.java:66)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.widget.TextView.sendOnTextChanged(TextView.java:6131)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.widget.TextView.handleTextChanged(TextView.java:6172)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:6316)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.text.SpannableStringBuilder.sendTextChange(SpannableStringBuilder.java:889)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.text.SpannableStringBuilder.change(SpannableStringBuilder.java:352)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.text.SpannableStringBuilder.change(SpannableStringBuilder.java:269)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:432)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:409)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:28)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.text.method.QwertyKeyListener.onKeyDown(QwertyKeyListener.java:195)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.text.method.TextKeyListener.onKeyDown(TextKeyListener.java:132)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.widget.TextView.doKeyDown(TextView.java:4304)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.widget.TextView.onKeyDown(TextView.java:4149)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.view.KeyEvent.dispatch(KeyEvent.java:1037)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.view.View.dispatchKeyEvent(View.java:3740)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1667)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1102)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.app.Activity.dispatchKeyEvent(Activity.java:2063)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1643)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.view.ViewRoot.deliverKeyEventToViewHierarchy(ViewRoot.java:2471)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.view.ViewRoot.handleFinishedEvent(ViewRoot.java:2441)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.view.ViewRoot.handleMessage(ViewRoot.java:1735)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.os.Handler.dispatchMessage(Handler.java:99)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.os.Looper.loop(Looper.java:123)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at android.app.ActivityThread.main(ActivityThread.java:4627)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at java.lang.reflect.Method.invokeNative(Native Method)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at java.lang.reflect.Method.invoke(Method.java:521)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)

06-30 15:02:47.632: ERROR/AndroidRuntime(300): at dalvik.system.NativeStart.main(Native Method)

06-30 15:02:47.812: WARN/ActivityManager(67): Force finishing activity com.menu.san/.OptionsmenuActivity

06-30 15:02:48.832: WARN/ActivityManager(67): Activity pause timeout for HistoryRecord{44f35b60 com.menu.san/.OptionsmenuActivity}