如何在Android Java中实现呢?
所以我的意思是我该如何读出标记和权重,将它们相乘并用同一系统添加下一行?
这就是我现在要在ListView中列出这些标记的内容:
private void fillData() {
Bundle extras = getIntent().getExtras();
String txt_sub_id = extras.getString("IDFach");
int test = Integer.parseInt(txt_sub_id);
Cursor mCursor = db.rawQuery("SELECT _id, subid, name, mark, gewicht, datum FROM tbl_marks WHERE subid = '"+test+"';", null);
startManagingCursor(mCursor);
if (mCursor != null && mCursor.moveToFirst()) {
int intName = mCursor.getColumnIndexOrThrow("subid");
do {
teststring = mCursor.getString(intName);
String[] from = new String[] { dbHelper.KEY_NAME_MARKS, dbHelper.KEY_MARK_MARKS, dbHelper.KEY_GEWICHT_MARKS, dbHelper.KEY_DATUM_MARKS};
int[] to = new int[] {R.id.txt_marks_row, R.id.txt_note, R.id.txt_gewicht, R.id.txt_datum};
SimpleCursorAdapter notes = new SimpleCursorAdapter(this, R.layout.show_marks, mCursor, from, to);
setListAdapter(notes);
} while (mCursor.moveToNext());
}
}
看起来像这样:
我喜欢拥有的东西:
提前致谢!
最佳答案
您需要在do / while循环内执行以下操作。这里的4是查询中列名的索引。
int mark=mCursor.getInt(4);
int wght=mCursor.getInt(5);