I initial object db and called its method from my current class:
db = new DBHelper(context);
db.addCallerInfo(FragmentCaller.iName.getText().toString(),
FragmentCaller.sex.getSelectedItemPosition(),
FragmentCaller.iAddress.getText().toString(),
FragmentCaller.iTel.getText().toString(),
FragmentCaller.callerType.getSelectedItemPosition(),
FragmentCaller.iSpecify.getText().toString());
In DBhelper class:
public void addCallerInfo(String name,int sex ,String address,String tel,int callerType_id,String specify) {
ContentValues values = new ContentValues();
values.put("name", name);
values.put("sex", sex);
values.put("address", address);
values.put("tel", tel);
values.put("specify", specify);
values.put("callerType_id", callerType_id);
db.insert(TableHelper.TABLE_callerInfo, null, values);
}
Then it has problem java.lang.NullPointerException:
Attempt to invoke virtual method long android.database.sqlite.SQLiteDatabase.insert(java.lang.String, java.lang.String, android.content.ContentValues)
on a null object reference
Help please! Thanks.