java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteQuery: select Fee,Budget,Time,Type from finance
public class BillActivity extends Activity {
private ListView billListView;
private MySQLiteOpenHelper sqLiteOpenHelper;
private SQLiteDatabase mDataBase;
// 存儲數據的數組列表
ArrayList<HashMap<String, Object>> listData;
// 適配器
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.bill);
sqLiteOpenHelper = new MySQLiteOpenHelper(BillActivity.this, "finance.db", null, 1);
mDataBase = sqLiteOpenHelper.getWritableDatabase();
Cursor c = mDataBase.rawQuery("select * from finance", null);
Log.i("database", "data" + mDataBase.isOpen());
int columnsSize = c.getColumnCount();
listData = new ArrayList<HashMap<String, Object>>();
// 獲取表的內容
while (c.moveToNext()) {
HashMap<String, Object> map = new HashMap<String, Object>();
for (int i = 0; i < columnsSize; i++) {
map.put("Type", c.getString(c.getColumnIndex("Type"))); //Type time fee budget
map.put("Time", c.getString(c.getColumnIndex("Time")));
String budget = c.getString(c.getColumnIndex("Budget"));
if (budget.equals("收入")) {
map.put("Fee", "+" + c.getString(c.getColumnIndex("Fee")));
} else {
map.put("Fee", "-" + c.getString(c.getColumnIndex("Fee")));
}
map.put("Budget", c.getString(c.getColumnIndex("Budget")));
Log.i("data", "data= " + map.get("Time"));
Log.i("data", "data= " + map.get("Type"));
Log.i("data", "data= " + map.get("Budget"));
Log.i("data", "data= " + map.get("Fee"));
}
listData.add(map);
c.close();
// mDataBase.close();
// sqLiteOpenHelper.close();
}
billListView = (ListView) findViewById(R.id.bill_listView);
SimpleAdapter billAdapter = new SimpleAdapter(BillActivity.this,
listData,// 數據源
R.layout.bill_item,// ListItem的XML實現
// 動態數組與Item對應的子項
new String[]{"Time", "Fee", "Budget", "Type"},
// ImageItem的XML文件裡面的一個ImageView,兩個TextView ID
new int[]{R.id.billItem_time, R.id.billItem_money, R.id.billItem_budget, R.id.billItem_type});
billListView.setAdapter(billAdapter);
}
讀取數據庫的時候拋出異常
FATAL EXCEPTION: main
Process: com.chase.cn.demon, PID: 25579
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.chase.cn.demon/com.chase.cn.demon.BillActivity}: java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteQuery: select Fee,Budget,Time,Type from finance
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteQuery: select Fee,Budget,Time,Type from finance
at android.database.sqlite.SQLiteClosable.acquireReference(SQLiteClosable.java:55)
at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:58)
at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:152)
at android.database.sqlite.SQLiteCursor.onMove(SQLiteCursor.java:124)
at android.database.AbstractCursor.moveToPosition(AbstractCursor.java:214)
at android.database.AbstractCursor.moveToNext(AbstractCursor.java:245)
at com.chase.cn.demon.BillActivity.onCreate(BillActivity.java:41)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
c.close 放在while外面
