i'm storing a call duration (in seconds) in a SQLiteDatabase and i need to display this as minutes to the user. here is the statement:
Cursor listCur = mDb.rawQuery(
"SELECT * FROM " + mDbCallTable.TABLE_NAME +
" JOIN " + mDbPhoneTable.TABLE_NAME +
" ON " + mDbCallTable.TABLE_NAME+"."+mDbCallTable.COLUMN_PHONE+"="+mDbPhoneTable.TABLE_NAME+"."+mDbPhoneTable.COLUMN_PHONE +
" JOIN " + mDbCustomerTable.TABLE_NAME +
" ON " + mDbPhoneTable.TABLE_NAME+"."+mDbPhoneTable.COLUMN_CUST_开发者_C百科ID+"="+mDbCustomerTable.TABLE_NAME+"."+mDbCustomerTable._ID,
null
);
and here is where i connect it to the SimpleCursorAdapter for display:
ListView theList;
SimpleCursorAdapter adapter;
theList = (ListView)findViewById(R.id.call_list);
listCur.moveToFirst();
adapter = new SimpleCursorAdapter(
MainActivity.this,
R.layout.call_list_item,
listCur,
new String[] {
mDbCallTable.TABLE_NAME+"."+mDbCallTable.COLUMN_PHONE,
mDbCustomerTable.TABLE_NAME+"."+mDbCustomerTable.COLUMN_NAME,
mDbCallTable.TABLE_NAME+"."+mDbCallTable.COLUMN_DURATION
},
new int[] {
R.id.item_text_phone,
R.id.item_text_customer,
R.id.item_text_duration
}
);
theList.setAdapter(adapter);
somewhere in here i need to divide by 60 to get the minutes and add 1 (rounding up to the nearest minute). how do i do this?
You can use a ViewBinder on the Adapter.
Something like
adapter.setViewBinder(new SimpleCursorAdapter.ViewBinder(){
public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
if(columnIndex != 2) return false; // only care about 3rd column
int duration = cursor.getInt(columnIndex) / 60 + 1;
((TextView)view).setText(String.valueOf(duration));
return true;
}
});
In the select statement- instead of doing select * - specify the columns - and you can do something like: select column_phone, column_name, (column_duration/60) + 1 as column_duration from blah blah
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