۱۳۹۴/۰۱/۱۴, ۱۲:۲۹ ب.ظ
من کد را به شکل زیر تغییر دادم اما همچنان برنامه بعد از باز شدن سریعاً بسته میشود:
در داخل کلاس SQLiteOpenHelper توابع زیر را قرار دادم:سپس در کلاس baseadapter کد زیر را قرار دادم:اما این بار لاگ ها به شکل زیر تغییر کرد:
در داخل کلاس SQLiteOpenHelper توابع زیر را قرار دادم:
کد پیاچپی:
public String getdata(String str) {
String selectQuery = "SELECT * FROM mytable WHERE myColumn = ' " +str+"'";
Cursor c = myDataBase.rawQuery(selectQuery, null);
if (c != null) {
c.moveToFirst();
}
return str=c.getString(0);
}
public void openDataBase() throws SQLException{
//Open the database
myDataBase = this.getReadableDatabase();
}
کد پیاچپی:
database db = new database(context);
db.openDataBase();
String str2 = db.getdata("Reza");
کد پیاچپی:
04-03 12:25:09.501: E/AndroidRuntime(28272): android.database.sqlite.SQLiteException: no such table: mytable (code 1): , while compiling: SELECT * FROM mytable WHERE myColumn = 'Reza'
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:37)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1253)
04-03 12:25:09.501: E/AndroidRuntime(28272): at com.neoriddle.wifiscanner.database.getdata(database.java:144)
04-03 12:25:09.501: E/AndroidRuntime(28272): at com.neoriddle.wifiscanner.ScanResultsAdapter.getView(ScanResultsAdapter.java:83)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.widget.AbsListView.obtainView(AbsListView.java:2255)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.widget.ListView.measureHeightOfChildren(ListView.java:1263)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.widget.ListView.onMeasure(ListView.java:1175)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.View.measure(View.java:16628)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.View.measure(View.java:16628)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.View.measure(View.java:16628)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
04-03 12:25:09.501: E/AndroidRuntime(28272): at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:327)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.View.measure(View.java:16628)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
04-03 12:25:09.501: E/AndroidRuntime(28272): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2298)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.View.measure(View.java:16628)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1916)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1113)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1295)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5622)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.Choreographer.doCallbacks(Choreographer.java:574)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.Choreographer.doFrame(Choreographer.java:544)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.os.Handler.handleCallback(Handler.java:733)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.os.Handler.dispatchMessage(Handler.java:95)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.os.Looper.loop(Looper.java:212)
04-03 12:25:09.501: E/AndroidRuntime(28272): at android.app.ActivityThread.main(ActivityThread.java:5135)
04-03 12:25:09.501: E/AndroidRuntime(28272): at java.lang.reflect.Method.invokeNative(Native Method)
04-03 12:25:09.501: E/AndroidRuntime(28272): at java.lang.reflect.Method.invoke(Method.java:515)
04-03 12:25:09.501: E/AndroidRuntime(28272): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:877)
04-03 12:25:09.501: E/AndroidRuntime(28272): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
04-03 12:25:09.501: E/AndroidRuntime(28272): at dalvik.system.NativeStart.main(Native Method)
