我在此语句中说“IllegalStateException：数据库未打开”时出错：
Cursor cursor = database.rawQuery("select rec_field_id, field_value from records_fields_data where cat_field_id = "+get_cat_field_id(category_fields_array_list.get(i))+" AND rec_id = "+rec_id+";", null);
这是我的完整java代码：
package com.walletapp;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ContentValues;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
public class AddRecords extends Activity {
Spinner category_spinner;
SQLiteDatabase database;
ArrayList<String> category_spinner_array_list, category_fields_array_list;
int cat_id;
int rec_id;
String[] tags;
ArrayList<String> tmp_category_fields_array_list;
ArrayList<String> tags_list;
private ArrayList<String> selectedTags;
ArrayList<EditText> edit_text_array_list;
EditText et_tags;
int tag_editText_id;
String cat_name;
String record_data;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_records);
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
Intent intent = getIntent();
rec_id = intent.getIntExtra("rec_id", 0);
record_data = intent.getStringExtra("record_data");
cat_name = intent.getStringExtra("cat_name");
category_spinner = (Spinner) findViewById(R.id.spinnerAddRecords);
build_spinner_list();
database.close();
if (rec_id != 0) {
category_spinner.setSelection(category_spinner_array_list
.indexOf(cat_name));
// generateUI(cat_name);
category_spinner.setEnabled(false);
}
category_spinner
.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
generateUI(arg0.getItemAtPosition(arg2) + "");
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
}
protected void generateUI(String string) {
Log.i("generate UI string passed is : ", string);
LinearLayout linearLayout_inner = (LinearLayout) findViewById(R.id.linearLayoutAddRecordsScrollViewInner);
if (string.equals("Category")) {
linearLayout_inner.removeAllViews();
Toast.makeText(getBaseContext(),
"Select the category to proceed further.",
Toast.LENGTH_SHORT).show();
} else {
linearLayout_inner.removeAllViewsInLayout();
tmp_category_fields_array_list = new ArrayList<String>();
cat_id = getId(string);
tmp_category_fields_array_list = get_field_names(cat_id);
category_fields_array_list = new ArrayList<String>();
category_fields_array_list = get_sorted_fields(tmp_category_fields_array_list);
edit_text_array_list = new ArrayList<EditText>();
if (rec_id == 0) {
for (String s : category_fields_array_list) {
TextView tv = new TextView(this);
tv.setText(s);
linearLayout_inner.addView(tv);
EditText et = new EditText(this);
et.setHint(s);
et.setTag(new Tag(get_cat_field_id(s), s));
edit_text_array_list.add(et);
linearLayout_inner.addView(et);
if (s.equals("Tags")) {
tag_editText_id = et.getId();
et_tags = et;
et.setFocusable(false);
et.setFocusableInTouchMode(false);
et.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
showSelectTagsDialog();
}
});
}
}
} else {
Log.i("database is open.", database.isOpen() + "");
// for(String s : category_fields_array_list)
for (int i = 0; i < category_fields_array_list.size(); i++) {
TextView tv = new TextView(this);
tv.setText(category_fields_array_list.get(i));
linearLayout_inner.addView(tv);
ArrayList<Integer> al_rec_field_id = new ArrayList<Integer>();
ArrayList<String> al_field_value = new ArrayList<String>();
Cursor cursor = database
.rawQuery(
"select rec_field_id, field_value from records_fields_data where cat_field_id = "
+ get_cat_field_id(category_fields_array_list
.get(i))
+ " AND rec_id = "
+ rec_id + ";", null);
while (cursor.moveToNext()) {
al_rec_field_id.add(cursor.getInt(0));
al_field_value.add(cursor.getString(1));
}
cursor.close();
// ----------------------------------------------------------------------------------------------
EditText et = new EditText(this);
// et.setHint(category_fields_array_list.get(i));
et.setText(al_field_value.get(i));
// Tag(int tmp_rec_field_id, int tmp_rec_id, int
// tmp_cat_field_id)
et.setTag(new Tag(al_rec_field_id.get(i), rec_id,
get_cat_field_id(category_fields_array_list.get(i))));
edit_text_array_list.add(et);
linearLayout_inner.addView(et);
if (category_fields_array_list.get(i).equals("Tags")) {
tag_editText_id = et.getId();
et_tags = et;
et.setFocusable(false);
et.setFocusableInTouchMode(false);
et.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
showSelectTagsDialog();
}
});
}
}
}
Button btn = new Button(this);
btn.setText("Save");
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
loadDatabase();
ContentValues values = new ContentValues();
String currentDate = new SimpleDateFormat("yyyy/MM/dd")
.format(Calendar.getInstance().getTime());
Tag tag = null;
int rec_id = 0;
for (int i = 0; i < edit_text_array_list.size(); i++) {
if (i == 0) {
// --------------first insert into records_data
// table------------
values.put("cat_id", cat_id);
values.put("tag_id", "0");
values.put("is_favourite", "0");
values.put("rec_name", edit_text_array_list.get(i)
.getText() + "");
values.put("is_delete", "0");
values.put("create_date", currentDate);
values.put("update_date", "0");
database.insert("records_data", null, values);
values.clear();
// -------------then fetch the rec_id for previously
// entered record----------
Cursor cursor = database
.query("records_data",
new String[] { "rec_id" },
"rec_name=?",
new String[] { edit_text_array_list
.get(i).getText() + "" },
null, null, null);
while (cursor.moveToNext())
rec_id = cursor.getInt(0);
cursor.close();
// -------------use this rec_id for inserting record
// into records_fields_data------------
values.put("rec_id", rec_id);
// ---------get cat_field_id----------
tag = (Tag) edit_text_array_list.get(i).getTag();
values.put("cat_field_id", tag.get_cat_field_id());
values.put("field_value",
edit_text_array_list.get(i).getText() + "");
values.put("is_delete", "0");
values.put("create_date", currentDate);
values.put("update_date", "0");
database.insert("records_fields_data", null, values);
values.clear();
} else if (i < edit_text_array_list.size() - 1) {
values.put("rec_id", rec_id);
tag = (Tag) edit_text_array_list.get(i).getTag();
values.put("cat_field_id", tag.get_cat_field_id());
values.put("field_value",
edit_text_array_list.get(i).getText() + "");
values.put("is_delete", "0");
values.put("create_date", currentDate);
values.put("update_date", "0");
database.insert("records_fields_data", null, values);
values.clear();
} else {
for (String s : selectedTags) {
int tag_id = get_tag_id(s);
values.put("rec_id", rec_id);
values.put("tag_id", tag_id);
database.insert("record_tag_relation", null,
values);
values.clear();
}
}
}
if (database.isOpen())
database.close();
finish();
startActivity(new Intent(AddRecords.this, AllRecords.class));
}
});
linearLayout_inner.addView(btn);
}
}
protected int get_tag_id(String s) {
int tag_id = 0;
Cursor cursor = database.query("tags", new String[] { "tag_id" },
"tag_name=?", new String[] { s }, null, null, null);
while (cursor.moveToNext()) {
tag_id = cursor.getInt(0);
}
return tag_id;
}
protected void showSelectTagsDialog() {
build_tags_list();
selectedTags = new ArrayList<String>();
boolean[] checkedTags = new boolean[tags.length];
int count = tags.length;
for (int i = 0; i < count; i++)
checkedTags[i] = selectedTags.contains(tags[i]);
DialogInterface.OnMultiChoiceClickListener tagsDialogListener = new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which,
boolean isChecked) {
if (isChecked)
selectedTags.add(tags[which]);
else
selectedTags.remove(tags[which]);
onChangeSelectedTags();
}
};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Select Tag(s)");
builder.setMultiChoiceItems(tags, checkedTags, tagsDialogListener);
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
}
});
AlertDialog dialog = builder.create();
dialog.show();
}
protected void onChangeSelectedTags() {
StringBuilder stringBuilder = new StringBuilder();
int count = 0;
for (CharSequence tag : selectedTags) {
count = count + 1;
stringBuilder.append(tag);
if (count < selectedTags.size())
stringBuilder.append(",");
}
for (EditText e : edit_text_array_list) {
if (e == et_tags) {
e.setText(stringBuilder.toString());
break;
}
}
}
private void build_tags_list() {
loadDatabase();
tags_list = new ArrayList<String>();
Cursor cursor = database.query("tags", new String[] { "tag_name" },
null, null, null, null, null);
while (cursor.moveToNext())
tags_list.add(cursor.getString(0));
cursor.close();
database.close();
tags = tags_list.toArray(new String[tags_list.size()]);
}
private int get_cat_field_id(String s) {
loadDatabase();
int tmp_cat_field_id = 0;
Cursor cursor = database.query("category_fields",
new String[] { "cat_field_id" }, "field_name=?",
new String[] { s }, null, null, null);
while (cursor.moveToNext())
tmp_cat_field_id = cursor.getInt(0);
cursor.close();
database.close();
return tmp_cat_field_id;
}
private ArrayList<String> get_sorted_fields(
ArrayList<String> tmp_category_fields_array_list2) {
int count = 0;
ArrayList<String> al_tmp = new ArrayList<String>();
for (String s : tmp_category_fields_array_list2) {
if (s.equals("Description")) {
if (al_tmp.contains(s)) {
// ----do nothing
} else {
al_tmp.add(s);
}
} else if (s.equals("Notes")) {
continue;
} else if (s.equals("Tags")) {
continue;
} else {
if (al_tmp.contains(s)) {
// ----do nothing
} else {
al_tmp.add(s);
}
}
count++;
if (count == tmp_category_fields_array_list.size() - 2) {
al_tmp.add("Notes");
al_tmp.add("Tags");
}
}
return al_tmp;
}
private ArrayList<String> get_field_names(int cat_id) {
loadDatabase();
ArrayList<String> tmp_cat_field_array_list = new ArrayList<String>();
Cursor cursor = database.query("category_fields",
new String[] { "field_name" }, "cat_id=?",
new String[] { cat_id + "" }, null, null, null);
while (cursor.moveToNext())
tmp_cat_field_array_list.add(cursor.getString(0));
cursor.close();
return tmp_cat_field_array_list;
}
protected int getId(String string) {
loadDatabase();
int tmp_cat_id = 0;
Cursor cursor = database.query("category", new String[] { "cat_id" },
"cat_description=?", new String[] { string }, null, null, null);
while (cursor.moveToNext())
tmp_cat_id = cursor.getInt(0);
cursor.close();
database.close();
return tmp_cat_id;
}
private void build_spinner_list() {
loadDatabase();
category_spinner_array_list = new ArrayList<String>();
category_spinner_array_list.add("Category");
Cursor cursor = database.query("category",
new String[] { "cat_description" }, null, null, null, null,
null);
while (cursor.moveToNext())
category_spinner_array_list.add(cursor.getString(0));
cursor.close();
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1,
category_spinner_array_list);
dataAdapter
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
category_spinner.setAdapter(dataAdapter);
}
private void loadDatabase() {
database = openOrCreateDatabase("WalletAppDatabase.db",
SQLiteDatabase.OPEN_READWRITE, null);
}
class Tag {
int cat_field_id;
String cat_field_name;
int rec_field_id;
int rec_id;
Tag(int id, String name) {
cat_field_id = id;
cat_field_name = name;
}
Tag(int tmp_rec_field_id, int tmp_rec_id, int tmp_cat_field_id) {
cat_field_id = tmp_cat_field_id;
rec_id = tmp_rec_id;
rec_field_id = tmp_rec_field_id;
}
int get_cat_field_id() {
return cat_field_id;
}
String get_cat_field_name() {
return cat_field_name;
}
int get_rec_field_id() {
return rec_field_id;
}
int get_rec_id() {
return rec_id;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
if (database.isOpen())
database.close();
finish();
if (rec_id == 0)
startActivity(new Intent(AddRecords.this, AllRecords.class));
else
startActivity(new Intent(AddRecords.this,
RecordsDetailedView.class));
return true;
}
return super.onKeyDown(keyCode, event);
}
}
这是我的 logcat 输出：
03-28 19:52:09.060: W/KeyCharacterMap(19142): No keyboard for id 0
03-28 19:52:09.070: W/KeyCharacterMap(19142): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
03-28 19:52:10.480: D/dalvikvm(19142): DexOpt: --- BEGIN 'ads34104.jar' (bootstrap=0) ---
03-28 19:52:10.650: D/dalvikvm(19142): DexOpt: --- END 'ads34104.jar' (success) ---
03-28 19:52:10.650: D/dalvikvm(19142): DEX prep '/data/data/com.walletapp/cache/ads34104.jar': unzip in 1ms, rewrite 167ms
03-28 19:52:10.770: D/dalvikvm(19142): GC_FOR_MALLOC freed 4534 objects / 295152 bytes in 86ms
03-28 19:52:11.140: E/ActivityThread(19142): Failed to find provider info for com.google.plus.platform
03-28 19:52:11.220: W/Ads(19142): loadAd called while the ad is already loading, so aborting.
03-28 19:52:11.350: I/Ads(19142): adRequestUrlHtml: <html><head><script src="http://media.admob.com/sdk-core-v40.js"></script><script>AFMA_getSdkConstants();AFMA_buildAdURL({"preqs":0,"session_id":"10699442437020247494","seq_num":"1","slotname":"a1512f50d8c3692","u_w":320,"msid":"com.walletapp","cap":"m,a","adtest":"on","js":"afma-sdk-a-v6.3.0","bas_off":0,"net":"ed","app_name":"1.android.com.walletapp","hl":"en","gnt":3,"carrier":"310260","u_audio":4,"kw":[],"u_sd":1,"simulator":1,"ms":"gHmei5U7VoADe6IEmAL5vLv6CPgwrxTqIxD3RsiiiukAljgNpKCC5wdhfTaJDFudJqp3jlSMt7IQh69rq2tF4dF7mb6cGUjuVtaNrXWv8IlY0shz8dI-iJtcdL05kuErjnIEkpkaKeilFUqY5qSSnF6siTb2kesTfzUM1VS76XkV7IE1q6yulBNFiXmECeZh349c0TjGh_3JdavLTR8MNSo8_c54G3_YkWKGEfhi3Q_lC4lkKWez-_l5_1moHM1MDDMxri5-2E348uKO75YfPB7CvBvFURAd7hD9ijU3Zq5G5dc72VPnnYdq5q819tb0NauVIQ450JDUN5mcbKGHAQ","isu":"B3EEABB8EE11C2BE770B684D95219ECB","format":"320x50_mb","oar":0,"ad_pos":{"height":0,"visible":0,"y":0,"x":0,"width":0},"u_h":480,"pt":1,"bas_on":0,"ptime":0});</script></head><body></body></html>
03-28 19:52:11.960: D/webviewglue(19142): nativeDestroy view: 0x293c08
03-28 19:52:11.970: D/dalvikvm(19142): GC_FOR_MALLOC freed 4152 objects / 371416 bytes in 218ms
03-28 19:52:15.091: W/webcore(19142): Can't get the viewWidth after the first layout
03-28 19:52:15.300: I/Ads(19142): Received ad url: <url: "http://googleads.g.doubleclick.net:80/mads/gma?preqs=0&session_id=10699442437020247494&seq_num=1&u_w=320&msid=com.walletapp&cap=m%2Ca&adtest=on&js=afma-sdk-a-v6.3.0&bas_off=0&net=ed&app_name=1.android.com.walletapp&hl=en&gnt=3&carrier=310260&u_audio=4&kw&u_sd=1&ms=gHmei5U7VoADe6IEmAL5vLv6CPgwrxTqIxD3RsiiiukAljgNpKCC5wdhfTaJDFudJqp3jlSMt7IQh69rq2tF4dF7mb6cGUjuVtaNrXWv8IlY0shz8dI-iJtcdL05kuErjnIEkpkaKeilFUqY5qSSnF6siTb2kesTfzUM1VS76XkV7IE1q6yulBNFiXmECeZh349c0TjGh_3JdavLTR8MNSo8_c54G3_YkWKGEfhi3Q_lC4lkKWez-_l5_1moHM1MDDMxri5-2E348uKO75YfPB7CvBvFURAd7hD9ijU3Zq5G5dc72VPnnYdq5q819tb0NauVIQ450JDUN5mcbKGHAQ&isu=B3EEABB8EE11C2BE770B684D95219ECB&format=320x50_mb&oar=0&u_h=480&bas_on=0&ptime=0&u_so=p&output=html®ion=mobile_app&u_tz=330&client_sdk=1&ex=1&slotname=a14e8f77524dde8&kw_type=broad&gsb=3g&caps=interactiveVideo_th_autoplay_mediation_sdkAdmobApiForAds_di&jsv=46" type: "admob" afmaNotifyDt: "null" activationOverlayUrl: "null" useWebViewLoadUrl: "false">
03-28 19:52:15.300: I/Ads(19142): Request scenario: Online server request.
03-28 19:52:16.201: I/generate UI string passed is :(19142): web mail
03-28 19:52:16.300: I/database is open.(19142): true
03-28 19:52:16.390: D/AndroidRuntime(19142): Shutting down VM
03-28 19:52:16.390: W/dalvikvm(19142): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
03-28 19:52:16.480: D/dalvikvm(19142): GC_FOR_MALLOC freed 4094 objects / 277504 bytes in 77ms
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): Releasing statement in a finalizer. Please ensure that you explicitly call close() on your cursor: select rec_field_id, field_value from records_fields_data where cat_field_id = 8 AND rec_id = 1;
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or database object that was opened here
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:62)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:80)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:46)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:42)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1345)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1315)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at com.walletapp.AddRecords.generateUI(AddRecords.java:158)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at com.walletapp.AddRecords$1.onItemSelected(AddRecords.java:77)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.widget.AdapterView.fireOnSelected(AdapterView.java:864)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.widget.AdapterView.access$200(AdapterView.java:42)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.widget.AdapterView$SelectionNotifier.run(AdapterView.java:830)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.os.Handler.handleCallback(Handler.java:587)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.os.Handler.dispatchMessage(Handler.java:92)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.os.Looper.loop(Looper.java:123)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at java.lang.reflect.Method.invokeNative(Native Method)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at java.lang.reflect.Method.invoke(Method.java:521)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-28 19:52:16.491: W/SQLiteCompiledSql(19142): at dalvik.system.NativeStart.main(Native Method)
03-28 19:52:16.500: E/AndroidRuntime(19142): FATAL EXCEPTION: main
03-28 19:52:16.500: E/AndroidRuntime(19142): java.lang.IllegalStateException: database not open
03-28 19:52:16.500: E/AndroidRuntime(19142): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1333)
03-28 19:52:16.500: E/AndroidRuntime(19142): at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1315)
03-28 19:52:16.500: E/AndroidRuntime(19142): at com.walletapp.AddRecords.generateUI(AddRecords.java:158)
03-28 19:52:16.500: E/AndroidRuntime(19142): at com.walletapp.AddRecords$1.onItemSelected(AddRecords.java:77)
03-28 19:52:16.500: E/AndroidRuntime(19142): at android.widget.AdapterView.fireOnSelected(AdapterView.java:864)
03-28 19:52:16.500: E/AndroidRuntime(19142): at android.widget.AdapterView.access$200(AdapterView.java:42)
03-28 19:52:16.500: E/AndroidRuntime(19142): at android.widget.AdapterView$SelectionNotifier.run(AdapterView.java:830)
03-28 19:52:16.500: E/AndroidRuntime(19142): at android.os.Handler.handleCallback(Handler.java:587)
03-28 19:52:16.500: E/AndroidRuntime(19142): at android.os.Handler.dispatchMessage(Handler.java:92)
03-28 19:52:16.500: E/AndroidRuntime(19142): at android.os.Looper.loop(Looper.java:123)
03-28 19:52:16.500: E/AndroidRuntime(19142): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-28 19:52:16.500: E/AndroidRuntime(19142): at java.lang.reflect.Method.invokeNative(Native Method)
03-28 19:52:16.500: E/AndroidRuntime(19142): at java.lang.reflect.Method.invoke(Method.java:521)
03-28 19:52:16.500: E/AndroidRuntime(19142): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-28 19:52:16.500: E/AndroidRuntime(19142): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-28 19:52:16.500: E/AndroidRuntime(19142): at dalvik.system.NativeStart.main(Native Method)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): Releasing statement in a finalizer. Please ensure that you explicitly call close() on your cursor: SELECT field_name FROM category_fields WHERE cat_id=?
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or database object that was opened here
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:62)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:80)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:46)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:42)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1345)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteDatabase.queryWithFactory(SQLiteDatabase.java:1229)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1184)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1264)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at com.walletapp.AddRecords.get_field_names(AddRecords.java:427)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at com.walletapp.AddRecords.generateUI(AddRecords.java:107)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at com.walletapp.AddRecords$1.onItemSelected(AddRecords.java:77)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.widget.AdapterView.fireOnSelected(AdapterView.java:864)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.widget.AdapterView.access$200(AdapterView.java:42)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.widget.AdapterView$SelectionNotifier.run(AdapterView.java:830)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.os.Handler.handleCallback(Handler.java:587)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.os.Handler.dispatchMessage(Handler.java:92)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.os.Looper.loop(Looper.java:123)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at java.lang.reflect.Method.invokeNative(Native Method)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at java.lang.reflect.Method.invoke(Method.java:521)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-28 19:52:16.510: W/SQLiteCompiledSql(19142): at dalvik.system.NativeStart.main(Native Method)
03-28 19:52:16.550:
但是我在这个语句之前记录了数据库状态，它表明数据库是打开的。谁能帮我这个。