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我面對SQLite這個奇怪的問題;我有這從動態生成的數據庫,複選框列表...當我第一次打開我的應用程序它不能正確加載我的線性佈局,實際上SQLite查詢不會返回任何字符串! 但是,當我改變片段(從我的第一個窗格到地圖窗格)並返回(到我的第一個窗格,我應該看到我的複選框列表),一切工作,因爲它應該工作和複選框列表出現!我logcat中沒有表現出任何異常或可疑情況......Android SQLite方法故障(?!?!)
這是我的方法:
private int setCheckboxes(){
SQLiteDatabase database = DatabaseManager.getInstance().openDatabase();
database.setLocale(Locale.getDefault());
String queryRoutes="SELECT * FROM"+tableRoute;
Cursor dataRoutes = database.rawQuery(queryRoutes, null);
ArrayList<String> routesStrings = new returnMapStuff().getRoutesArray(dataRoutes);
DatabaseManager.getInstance().closeDatabase();
routesStrings.size();
try{
CheckBox cb;
for (int i = 0; i < routesStrings.size(); i++) {
cb = new CheckBox(context);
cb.setText(routesStrings.get(i));
cb.setId(i);
ll.addView(cb);
}
}catch (Exception e){e.printStackTrace();}
return routesStrings.size();
}
,這是我怎麼稱呼它:
View view = inflater.inflate(R.layout.fragment_main, container, false);
ll = (LinearLayout) view.findViewById(R.id.CheckboxLL);
int howManyCheckboxes =setCheckboxes();
this is my logcat with a few log.i():
04-01 09:22:40.883 2412-2412/pack.androidmap I/POSA CHECKBOXES?﹕ 0
//return value(setCheckboxes()) first then it runs (inside)returnMapstuff():
04-01 09:23:00.451 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ paralia
04-01 09:23:00.451 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ petalo
04-01 09:23:00.451 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ partali
04-01 09:23:00.451 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ ateik
04-01 09:23:00.451 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ pagni
04-01 09:23:00.451 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ λύκαστος
04-01 09:23:00.451 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ smallville
04-01 09:23:00.451 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ αλί καρνέησον
04-01 09:23:00.451 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ καμπαμαρούν
// but when I press back (first returnMapstuff()):
04-01 09:23:04.843 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ paralia
04-01 09:23:04.843 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ petalo
04-01 09:23:04.843 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ partali
04-01 09:23:04.843 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ ateik
04-01 09:23:04.843 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ pagni
04-01 09:23:04.843 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ λύκαστος
04-01 09:23:04.843 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ smallville
04-01 09:23:04.843 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ αλί καρνέησον
04-01 09:23:04.843 2412-2412/pack.androidmap I/POSA route mesa mapstuff?﹕ καμπαμαρούν
//then return value of setCheckboxes()
04-01 09:23:04.847 2412-2412/pack.androidmap I/POSA CHECKBOXES?﹕ 9
這怎麼可能?
沒有的空間是存在的! 複製/粘貼中發生了一些事情:| – lycastos 2015-04-01 09:26:37
然後你的tableRoute是空的。或者你沒有傳遞正確的表名。 – 2015-04-01 09:29:07
見上面(我編輯第一篇文章)......因爲它看起來並不是空的! – lycastos 2015-04-01 09:34:45